TY  - JOUR
AU  - Anđelković, Uroš
AU  - Gudelj, Ivan
AU  - Klarić, Thomas
AU  - Hinneburg, Hannes
AU  - Vinković, Marijana
AU  - Wittine, Karlo
AU  - Dovezenski, Nebojša
AU  - Vikić-Topić, Dražen
AU  - Lauc, Gordan
AU  - Vujčić, Zoran
AU  - Josić, Đuro
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3732
AB  - Invertases are glycosidases applied for synthesis of alkyl glycosides that are important and effective surfactants. Stability of invertases in the environment with increased content of organic solvent is crucial for increase of productivity of glycosidases. Their stability
is significantly influenced by N-glycosylation. However, yeast N-glycosylation pathways may synthesize plethora of N-glycan structures. A total natural crude mixture of invertase glycoforms (EINV) extracted from Saccharomyces cerevisiae was subfractionated
by anion-exchange chromatography on industrial monolithic supports to obtain different glycoforms (EINV1–EINV3). Separated glycoforms exhibited different stabilities in wateralcohol solutions that are in direct correlation with the amount of phosphate bound to N-glycans. Observed differences in stability of different invertase glycoforms were used to improve productivity of methyl β-d-fructofuranoside (MF) synthesis. The efficiency and yield of MF synthesis were improved more than 50% when the most stabile glycoform bearing the lowest amount of phosphorylated N-glycans is selected and utilized. These data underline the importance of analysis of glycan structures attached to glycoproteins, demonstrate different impact of N-glycans on the surface charge and enzyme stability in
regard to particular reaction environment, and provide a platform for improvement of yield of industrial enzymatic synthesis by chromatographic selection of glycoforms on monolithic supports.
PB  - Wiley
T2  - Electrophoresis
T1  - Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase
VL  - 42
IS  - 24
SP  - 2626
EP  - 2636
DO  - 10.1002/elps.202000092
ER  - 

@article{
author = "Anđelković, Uroš and Gudelj, Ivan and Klarić, Thomas and Hinneburg, Hannes and Vinković, Marijana and Wittine, Karlo and Dovezenski, Nebojša and Vikić-Topić, Dražen and Lauc, Gordan and Vujčić, Zoran and Josić, Đuro",
year = "2021",
abstract = "Invertases are glycosidases applied for synthesis of alkyl glycosides that are important and effective surfactants. Stability of invertases in the environment with increased content of organic solvent is crucial for increase of productivity of glycosidases. Their stability
is significantly influenced by N-glycosylation. However, yeast N-glycosylation pathways may synthesize plethora of N-glycan structures. A total natural crude mixture of invertase glycoforms (EINV) extracted from Saccharomyces cerevisiae was subfractionated
by anion-exchange chromatography on industrial monolithic supports to obtain different glycoforms (EINV1–EINV3). Separated glycoforms exhibited different stabilities in wateralcohol solutions that are in direct correlation with the amount of phosphate bound to N-glycans. Observed differences in stability of different invertase glycoforms were used to improve productivity of methyl β-d-fructofuranoside (MF) synthesis. The efficiency and yield of MF synthesis were improved more than 50% when the most stabile glycoform bearing the lowest amount of phosphorylated N-glycans is selected and utilized. These data underline the importance of analysis of glycan structures attached to glycoproteins, demonstrate different impact of N-glycans on the surface charge and enzyme stability in
regard to particular reaction environment, and provide a platform for improvement of yield of industrial enzymatic synthesis by chromatographic selection of glycoforms on monolithic supports.",
publisher = "Wiley",
journal = "Electrophoresis",
title = "Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase",
volume = "42",
number = "24",
pages = "2626-2636",
doi = "10.1002/elps.202000092"
}

Anđelković, U., Gudelj, I., Klarić, T., Hinneburg, H., Vinković, M., Wittine, K., Dovezenski, N., Vikić-Topić, D., Lauc, G., Vujčić, Z.,& Josić, Đ.. (2021). Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase. in Electrophoresis
Wiley., 42(24), 2626-2636.
https://doi.org/10.1002/elps.202000092

Anđelković U, Gudelj I, Klarić T, Hinneburg H, Vinković M, Wittine K, Dovezenski N, Vikić-Topić D, Lauc G, Vujčić Z, Josić Đ. Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase. in Electrophoresis. 2021;42(24):2626-2636.
doi:10.1002/elps.202000092 .

Anđelković, Uroš, Gudelj, Ivan, Klarić, Thomas, Hinneburg, Hannes, Vinković, Marijana, Wittine, Karlo, Dovezenski, Nebojša, Vikić-Topić, Dražen, Lauc, Gordan, Vujčić, Zoran, Josić, Đuro, "Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase" in Electrophoresis, 42, no. 24 (2021):2626-2636,
https://doi.org/10.1002/elps.202000092 . .

TY  - DATA
AU  - Nikolić, Andrea
AU  - Stanić, Jelena
AU  - Zlatar, Matija
AU  - Gruden, Maja
AU  - Anđelković, Boban
AU  - Selaković, Života
AU  - Ajdačić, Vladimir
AU  - Opsenica, Igor
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4444
AB  - Copies of 1H and 13C NMR spectra for the synthesized compounds; Extended computational results, and total electronic energies, number of imaginary frequencies;  Cartesian coordinates of all structures.
PB  - American Chemical Society (ACS)
T2  - The Journal of Organic Chemistry
T1  - Supporting information for: "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines"
DO  - 10.1021/acs.joc.1c00282.s001
ER  - 

@misc{
author = "Nikolić, Andrea and Stanić, Jelena and Zlatar, Matija and Gruden, Maja and Anđelković, Boban and Selaković, Života and Ajdačić, Vladimir and Opsenica, Igor",
year = "2021",
abstract = "Copies of 1H and 13C NMR spectra for the synthesized compounds; Extended computational results, and total electronic energies, number of imaginary frequencies;  Cartesian coordinates of all structures.",
publisher = "American Chemical Society (ACS)",
journal = "The Journal of Organic Chemistry",
title = "Supporting information for: "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines"",
doi = "10.1021/acs.joc.1c00282.s001"
}

Nikolić, A., Stanić, J., Zlatar, M., Gruden, M., Anđelković, B., Selaković, Ž., Ajdačić, V.,& Opsenica, I.. (2021). Supporting information for: "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines". in The Journal of Organic Chemistry
American Chemical Society (ACS)..
https://doi.org/10.1021/acs.joc.1c00282.s001

Nikolić A, Stanić J, Zlatar M, Gruden M, Anđelković B, Selaković Ž, Ajdačić V, Opsenica I. Supporting information for: "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines". in The Journal of Organic Chemistry. 2021;.
doi:10.1021/acs.joc.1c00282.s001 .

Nikolić, Andrea, Stanić, Jelena, Zlatar, Matija, Gruden, Maja, Anđelković, Boban, Selaković, Života, Ajdačić, Vladimir, Opsenica, Igor, "Supporting information for: "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines"" in The Journal of Organic Chemistry (2021),
https://doi.org/10.1021/acs.joc.1c00282.s001 . .

TY  - JOUR
AU  - Nikolić, Andrea
AU  - Stanić, Jelena
AU  - Zlatar, Matija
AU  - Gruden, Maja
AU  - Anđelković, Boban
AU  - Selaković, Života
AU  - Ajdačić, Vladimir
AU  - Opsenica, Igor
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4443
AB  - The Pd-catalyzed N-arylation method for the synthesis of eighteen N,1-diaryl-1H-tetrazol-5-amine derivatives is reported. By running the reactions at 35 °C, compounds were isolated as single isomers since the undesired Dimroth rearrangement was completely suppressed. Furthermore, the Dimroth rearrangement of N,1-diaryl-1H-tetrazol-5-amines was rationalized by conducting comprehensive experiments and NMR analysis as well as density functional theory (DFT) calculations of thermodynamic stability of the compounds. It was established that the Dimroth rearrangement is thermodynamically controlled, and the equilibrium of the reaction is determined by the stability of the corresponding isomers. The mechanism was investigated by additional DFT calculations, and the opening of the tetrazole ring was shown to be the rate-determining step. By maneuvering Pd-catalyzed N-arylation and the subsequent Dimroth rearrangement, two more N,1-diaryl-1H-tetrazol-5-amine derivatives were acquired, which otherwise cannot be synthesized by employing the C–N cross-coupling reaction.
PB  - American Chemical Society (ACS)
T2  - The Journal of Organic Chemistry
T1  - Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines
VL  - 86
IS  - 6
SP  - 4794
EP  - 4803
DO  - 10.1021/acs.joc.1c00282
ER  - 

@article{
author = "Nikolić, Andrea and Stanić, Jelena and Zlatar, Matija and Gruden, Maja and Anđelković, Boban and Selaković, Života and Ajdačić, Vladimir and Opsenica, Igor",
year = "2021",
abstract = "The Pd-catalyzed N-arylation method for the synthesis of eighteen N,1-diaryl-1H-tetrazol-5-amine derivatives is reported. By running the reactions at 35 °C, compounds were isolated as single isomers since the undesired Dimroth rearrangement was completely suppressed. Furthermore, the Dimroth rearrangement of N,1-diaryl-1H-tetrazol-5-amines was rationalized by conducting comprehensive experiments and NMR analysis as well as density functional theory (DFT) calculations of thermodynamic stability of the compounds. It was established that the Dimroth rearrangement is thermodynamically controlled, and the equilibrium of the reaction is determined by the stability of the corresponding isomers. The mechanism was investigated by additional DFT calculations, and the opening of the tetrazole ring was shown to be the rate-determining step. By maneuvering Pd-catalyzed N-arylation and the subsequent Dimroth rearrangement, two more N,1-diaryl-1H-tetrazol-5-amine derivatives were acquired, which otherwise cannot be synthesized by employing the C–N cross-coupling reaction.",
publisher = "American Chemical Society (ACS)",
journal = "The Journal of Organic Chemistry",
title = "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines",
volume = "86",
number = "6",
pages = "4794-4803",
doi = "10.1021/acs.joc.1c00282"
}

Nikolić, A., Stanić, J., Zlatar, M., Gruden, M., Anđelković, B., Selaković, Ž., Ajdačić, V.,& Opsenica, I.. (2021). Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines. in The Journal of Organic Chemistry
American Chemical Society (ACS)., 86(6), 4794-4803.
https://doi.org/10.1021/acs.joc.1c00282

Nikolić A, Stanić J, Zlatar M, Gruden M, Anđelković B, Selaković Ž, Ajdačić V, Opsenica I. Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines. in The Journal of Organic Chemistry. 2021;86(6):4794-4803.
doi:10.1021/acs.joc.1c00282 .

Nikolić, Andrea, Stanić, Jelena, Zlatar, Matija, Gruden, Maja, Anđelković, Boban, Selaković, Života, Ajdačić, Vladimir, Opsenica, Igor, "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines" in The Journal of Organic Chemistry, 86, no. 6 (2021):4794-4803,
https://doi.org/10.1021/acs.joc.1c00282 . .

TY  - JOUR
AU  - Nikolić, Andrea
AU  - Stanić, Jelena
AU  - Zlatar, Matija
AU  - Gruden, Maja
AU  - Anđelković, Boban
AU  - Selaković, Života
AU  - Ajdačić, Vladimir
AU  - Opsenica, Igor
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4431
AB  - The Pd-catalyzed N-arylation method for the synthesis of eighteen N,1-diaryl-1H-tetrazol-5-amine derivatives is reported. By running the reactions at 35 °C, compounds were isolated as single isomers since the undesired Dimroth rearrangement was completely suppressed. Furthermore, the Dimroth rearrangement of N,1-diaryl-1H-tetrazol-5-amines was rationalized by conducting comprehensive experiments and NMR analysis as well as density functional theory (DFT) calculations of thermodynamic stability of the compounds. It was established that the Dimroth rearrangement is thermodynamically controlled, and the equilibrium of the reaction is determined by the stability of the corresponding isomers. The mechanism was investigated by additional DFT calculations, and the opening of the tetrazole ring was shown to be the rate-determining step. By maneuvering Pd-catalyzed N-arylation and the subsequent Dimroth rearrangement, two more N,1-diaryl-1H-tetrazol-5-amine derivatives were acquired, which otherwise cannot be synthesized by employing the C–N cross-coupling reaction.
PB  - American Chemical Society (ACS)
T2  - The Journal of Organic Chemistry
T1  - Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines
VL  - 86
IS  - 6
SP  - 4794
EP  - 4803
DO  - 10.1021/acs.joc.1c00282
ER  - 

@article{
author = "Nikolić, Andrea and Stanić, Jelena and Zlatar, Matija and Gruden, Maja and Anđelković, Boban and Selaković, Života and Ajdačić, Vladimir and Opsenica, Igor",
year = "2021",
abstract = "The Pd-catalyzed N-arylation method for the synthesis of eighteen N,1-diaryl-1H-tetrazol-5-amine derivatives is reported. By running the reactions at 35 °C, compounds were isolated as single isomers since the undesired Dimroth rearrangement was completely suppressed. Furthermore, the Dimroth rearrangement of N,1-diaryl-1H-tetrazol-5-amines was rationalized by conducting comprehensive experiments and NMR analysis as well as density functional theory (DFT) calculations of thermodynamic stability of the compounds. It was established that the Dimroth rearrangement is thermodynamically controlled, and the equilibrium of the reaction is determined by the stability of the corresponding isomers. The mechanism was investigated by additional DFT calculations, and the opening of the tetrazole ring was shown to be the rate-determining step. By maneuvering Pd-catalyzed N-arylation and the subsequent Dimroth rearrangement, two more N,1-diaryl-1H-tetrazol-5-amine derivatives were acquired, which otherwise cannot be synthesized by employing the C–N cross-coupling reaction.",
publisher = "American Chemical Society (ACS)",
journal = "The Journal of Organic Chemistry",
title = "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines",
volume = "86",
number = "6",
pages = "4794-4803",
doi = "10.1021/acs.joc.1c00282"
}

Nikolić, A., Stanić, J., Zlatar, M., Gruden, M., Anđelković, B., Selaković, Ž., Ajdačić, V.,& Opsenica, I.. (2021). Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines. in The Journal of Organic Chemistry
American Chemical Society (ACS)., 86(6), 4794-4803.
https://doi.org/10.1021/acs.joc.1c00282

Nikolić A, Stanić J, Zlatar M, Gruden M, Anđelković B, Selaković Ž, Ajdačić V, Opsenica I. Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines. in The Journal of Organic Chemistry. 2021;86(6):4794-4803.
doi:10.1021/acs.joc.1c00282 .

Nikolić, Andrea, Stanić, Jelena, Zlatar, Matija, Gruden, Maja, Anđelković, Boban, Selaković, Života, Ajdačić, Vladimir, Opsenica, Igor, "Controlling Pd-Catalyzed N-Arylation and Dimroth Rearrangement in the Synthesis of N,1-Diaryl-1H-tetrazol-5-amines" in The Journal of Organic Chemistry, 86, no. 6 (2021):4794-4803,
https://doi.org/10.1021/acs.joc.1c00282 . .

TY  - JOUR
AU  - Anđelković, Uroš
AU  - Gudelj, Ivan
AU  - Klarić, Thomas
AU  - Hinneburg, Hannes
AU  - Vinković, Marijana
AU  - Wittine, Karlo
AU  - Dovezenski, Nebojša
AU  - Vikić-Topić, Dražen
AU  - Lauc, Gordan
AU  - Vujčić, Zoran
AU  - Josić, Đuro
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3989
AB  - Invertases are glycosidases applied for synthesis of alkyl glycosides that are important and effective surfactants. Stability of invertases in the environment with increased content of organic solvent is crucial for increase of productivity of glycosidases. Their stabilityis significantly influenced by N-glycosylation. However, yeast N-glycosylation pathways may synthesize plethora of N-glycan structures. A total natural crude mixture of invertase glycoforms (EINV) extracted from Saccharomyces cerevisiae was subfractionatedby anion-exchange chromatography on industrial monolithic supports to obtain different glycoforms (EINV1–EINV3). Separated glycoforms exhibited different stabilities in wateralcohol solutions that are in direct correlation with the amount of phosphate bound to N-glycans. Observed differences in stability of different invertase glycoforms were used to improve productivity of methyl β-d-fructofuranoside (MF) synthesis. The efficiency and yield of MF synthesis were improved more than 50% when the most stabile glycoform bearing the lowest amount of phosphorylated N-glycans is selected and utilized. These data underline the importance of analysis of glycan structures attached to glycoproteins, demonstrate different impact of N-glycans on the surface charge and enzyme stability inregard to particular reaction environment, and provide a platform for improvement of yield of industrial enzymatic synthesis by chromatographic selection of glycoforms on monolithic supports.
PB  - Wiley
T2  - Electrophoresis
T1  - Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase
DO  - 10.1002/elps.202000092
ER  - 

@article{
author = "Anđelković, Uroš and Gudelj, Ivan and Klarić, Thomas and Hinneburg, Hannes and Vinković, Marijana and Wittine, Karlo and Dovezenski, Nebojša and Vikić-Topić, Dražen and Lauc, Gordan and Vujčić, Zoran and Josić, Đuro",
year = "2020",
abstract = "Invertases are glycosidases applied for synthesis of alkyl glycosides that are important and effective surfactants. Stability of invertases in the environment with increased content of organic solvent is crucial for increase of productivity of glycosidases. Their stabilityis significantly influenced by N-glycosylation. However, yeast N-glycosylation pathways may synthesize plethora of N-glycan structures. A total natural crude mixture of invertase glycoforms (EINV) extracted from Saccharomyces cerevisiae was subfractionatedby anion-exchange chromatography on industrial monolithic supports to obtain different glycoforms (EINV1–EINV3). Separated glycoforms exhibited different stabilities in wateralcohol solutions that are in direct correlation with the amount of phosphate bound to N-glycans. Observed differences in stability of different invertase glycoforms were used to improve productivity of methyl β-d-fructofuranoside (MF) synthesis. The efficiency and yield of MF synthesis were improved more than 50% when the most stabile glycoform bearing the lowest amount of phosphorylated N-glycans is selected and utilized. These data underline the importance of analysis of glycan structures attached to glycoproteins, demonstrate different impact of N-glycans on the surface charge and enzyme stability inregard to particular reaction environment, and provide a platform for improvement of yield of industrial enzymatic synthesis by chromatographic selection of glycoforms on monolithic supports.",
publisher = "Wiley",
journal = "Electrophoresis",
title = "Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase",
doi = "10.1002/elps.202000092"
}

Anđelković, U., Gudelj, I., Klarić, T., Hinneburg, H., Vinković, M., Wittine, K., Dovezenski, N., Vikić-Topić, D., Lauc, G., Vujčić, Z.,& Josić, Đ.. (2020). Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase. in Electrophoresis
Wiley..
https://doi.org/10.1002/elps.202000092

Anđelković U, Gudelj I, Klarić T, Hinneburg H, Vinković M, Wittine K, Dovezenski N, Vikić-Topić D, Lauc G, Vujčić Z, Josić Đ. Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase. in Electrophoresis. 2020;.
doi:10.1002/elps.202000092 .

Anđelković, Uroš, Gudelj, Ivan, Klarić, Thomas, Hinneburg, Hannes, Vinković, Marijana, Wittine, Karlo, Dovezenski, Nebojša, Vikić-Topić, Dražen, Lauc, Gordan, Vujčić, Zoran, Josić, Đuro, "Increased yield of enzymatic synthesis by chromatographic selection of different N-glycoforms of yeast invertase" in Electrophoresis (2020),
https://doi.org/10.1002/elps.202000092 . .

TY  - JOUR
AU  - Vulović, Bojan
AU  - Trmčić, Milena
AU  - Matović, Radomir
AU  - Saičić, Radomir N.
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3819
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3388
AB  - Unsaturated oxyallyl cations with a suitably positioned alkene bond undergo 5-exo-cyclization with the formation of vinylcyclopentane derivatives. Alkyne analogues provide allenes. The reaction proceeds with a moderate to excellent level of stereoselectivity and allows for asymmetric induction in the reaction with chiral substrate.
PB  - American Chemical Society (ACS)
T2  - Organic Letters
T1  - Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation
VL  - 21
IS  - 23
SP  - 9618
EP  - 9621
DO  - 10.1021/acs.orglett.9b03791
ER  - 

@article{
author = "Vulović, Bojan and Trmčić, Milena and Matović, Radomir and Saičić, Radomir N.",
year = "2019",
abstract = "Unsaturated oxyallyl cations with a suitably positioned alkene bond undergo 5-exo-cyclization with the formation of vinylcyclopentane derivatives. Alkyne analogues provide allenes. The reaction proceeds with a moderate to excellent level of stereoselectivity and allows for asymmetric induction in the reaction with chiral substrate.",
publisher = "American Chemical Society (ACS)",
journal = "Organic Letters",
title = "Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation",
volume = "21",
number = "23",
pages = "9618-9621",
doi = "10.1021/acs.orglett.9b03791"
}

Vulović, B., Trmčić, M., Matović, R.,& Saičić, R. N.. (2019). Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation. in Organic Letters
American Chemical Society (ACS)., 21(23), 9618-9621.
https://doi.org/10.1021/acs.orglett.9b03791

Vulović B, Trmčić M, Matović R, Saičić RN. Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation. in Organic Letters. 2019;21(23):9618-9621.
doi:10.1021/acs.orglett.9b03791 .

Vulović, Bojan, Trmčić, Milena, Matović, Radomir, Saičić, Radomir N., "Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation" in Organic Letters, 21, no. 23 (2019):9618-9621,
https://doi.org/10.1021/acs.orglett.9b03791 . .

TY  - JOUR
AU  - Marković, Olivera
AU  - Cvijetić, Ilija
AU  - Zlatović, Mario
AU  - Opsenica, Igor
AU  - Konstantinović, Jelena M.
AU  - Terzić-Jovanović, Nataša
AU  - Šolaja, Bogdan
AU  - Verbić, Tatjana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2472
AB  - Interactions between eight in-house synthesized aminoquinolines, along with well-known chloroquine, and human serum albumin (HSA) have been studied by fluorescence spectroscopy. The synthesized aminoquinolines, despite being structurally diverse, were found to be very potent antimalarials. Fluorescence measurements indicate that three compounds having additional thiophene or benzothiophene substructure bind more strongly to HSA than other studied compounds. Competitive binding experiments indicate that these three compounds bind significantly stronger to warfarin compared to diazepam binding site. Fluorescence quenching at three temperatures (20, 25, and 37 degrees C) was analyzed using classical Stern-Volmer equation, and a static quenching mechanism was proposed. The enthalpy and entropy changes upon sulphur-containing compound-HSA interactions were calculated using Van't Hoff equation. Positive values of enthalpy and entropy changes indicate that non-specific, hydrophobic interactions are the main contributors to HSA-compound interaction. Molecular docking and calculated lipophilicity descriptors indicate the same, pointing out that the increased lipophilicity of sulphur-containing compounds might be a reason for their better binding to HSA. Obtained results might contribute to design of novel derivatives with improved-pharmacokinetic properties and drug efficacy.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
T1  - Human serum albumin binding of certain antimalarials
VL  - 192
SP  - 128
EP  - 139
DO  - 10.1016/j.saa.2017.10.061
ER  - 

@article{
author = "Marković, Olivera and Cvijetić, Ilija and Zlatović, Mario and Opsenica, Igor and Konstantinović, Jelena M. and Terzić-Jovanović, Nataša and Šolaja, Bogdan and Verbić, Tatjana",
year = "2018",
abstract = "Interactions between eight in-house synthesized aminoquinolines, along with well-known chloroquine, and human serum albumin (HSA) have been studied by fluorescence spectroscopy. The synthesized aminoquinolines, despite being structurally diverse, were found to be very potent antimalarials. Fluorescence measurements indicate that three compounds having additional thiophene or benzothiophene substructure bind more strongly to HSA than other studied compounds. Competitive binding experiments indicate that these three compounds bind significantly stronger to warfarin compared to diazepam binding site. Fluorescence quenching at three temperatures (20, 25, and 37 degrees C) was analyzed using classical Stern-Volmer equation, and a static quenching mechanism was proposed. The enthalpy and entropy changes upon sulphur-containing compound-HSA interactions were calculated using Van't Hoff equation. Positive values of enthalpy and entropy changes indicate that non-specific, hydrophobic interactions are the main contributors to HSA-compound interaction. Molecular docking and calculated lipophilicity descriptors indicate the same, pointing out that the increased lipophilicity of sulphur-containing compounds might be a reason for their better binding to HSA. Obtained results might contribute to design of novel derivatives with improved-pharmacokinetic properties and drug efficacy.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy",
title = "Human serum albumin binding of certain antimalarials",
volume = "192",
pages = "128-139",
doi = "10.1016/j.saa.2017.10.061"
}

Marković, O., Cvijetić, I., Zlatović, M., Opsenica, I., Konstantinović, J. M., Terzić-Jovanović, N., Šolaja, B.,& Verbić, T.. (2018). Human serum albumin binding of certain antimalarials. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Oxford : Pergamon-Elsevier Science Ltd., 192, 128-139.
https://doi.org/10.1016/j.saa.2017.10.061

Marković O, Cvijetić I, Zlatović M, Opsenica I, Konstantinović JM, Terzić-Jovanović N, Šolaja B, Verbić T. Human serum albumin binding of certain antimalarials. in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2018;192:128-139.
doi:10.1016/j.saa.2017.10.061 .

Marković, Olivera, Cvijetić, Ilija, Zlatović, Mario, Opsenica, Igor, Konstantinović, Jelena M., Terzić-Jovanović, Nataša, Šolaja, Bogdan, Verbić, Tatjana, "Human serum albumin binding of certain antimalarials" in Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 192 (2018):128-139,
https://doi.org/10.1016/j.saa.2017.10.061 . .

TY  - JOUR
AU  - Minić, Simeon
AU  - Radomirović, Mirjana
AU  - Savkovic, Nina
AU  - Radibratović, Milica
AU  - Mihailović, Jelena
AU  - Vasović, Tamara
AU  - Nikolić, Milan
AU  - Milčić, Miloš
AU  - Stanić-Vučinić, Dragana
AU  - Ćirković Veličković, Tanja
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2420
AB  - In this study, we investigated structural aspects of covalent binding of food derived blue pigment phycocyanobilin (PCB) to bovine beta-lactoglobulin (BLG), major whey protein, by spectroscopic, electrophoretic, mass spectrometry and computational methods. At physiological pH (7.2), we found that covalent pigment binding via free cysteine residue is slow (k(a)=0.065 min(-1)), of moderate affinity (K-a=4x10(4) M-1), and stereo-selective. Binding also occurs at a broad pH range and under simulated gastrointestinal conditions. Adduct formation rises with pH, and in concentrated urea (k(a)=0.101 min(-1)). The BLG-PCB adduct has slightly altered secondary and tertiary protein structure, and bound PCB has higher fluorescence and more stretched conformation than free chromophore. Combination of steered molecular dynamic for disulfide exchange, non-covalent and covalent docking, favours Cys119 residue in protein calyx as target for covalent BLG-PCB adduct formation. Our results suggest that this adduct can serve as delivery system of bioactive PCB.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions
VL  - 269
SP  - 43
EP  - 52
DO  - 10.1016/j.foodchem.2018.06.138
ER  - 

@article{
author = "Minić, Simeon and Radomirović, Mirjana and Savkovic, Nina and Radibratović, Milica and Mihailović, Jelena and Vasović, Tamara and Nikolić, Milan and Milčić, Miloš and Stanić-Vučinić, Dragana and Ćirković Veličković, Tanja",
year = "2018",
abstract = "In this study, we investigated structural aspects of covalent binding of food derived blue pigment phycocyanobilin (PCB) to bovine beta-lactoglobulin (BLG), major whey protein, by spectroscopic, electrophoretic, mass spectrometry and computational methods. At physiological pH (7.2), we found that covalent pigment binding via free cysteine residue is slow (k(a)=0.065 min(-1)), of moderate affinity (K-a=4x10(4) M-1), and stereo-selective. Binding also occurs at a broad pH range and under simulated gastrointestinal conditions. Adduct formation rises with pH, and in concentrated urea (k(a)=0.101 min(-1)). The BLG-PCB adduct has slightly altered secondary and tertiary protein structure, and bound PCB has higher fluorescence and more stretched conformation than free chromophore. Combination of steered molecular dynamic for disulfide exchange, non-covalent and covalent docking, favours Cys119 residue in protein calyx as target for covalent BLG-PCB adduct formation. Our results suggest that this adduct can serve as delivery system of bioactive PCB.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions",
volume = "269",
pages = "43-52",
doi = "10.1016/j.foodchem.2018.06.138"
}

Minić, S., Radomirović, M., Savkovic, N., Radibratović, M., Mihailović, J., Vasović, T., Nikolić, M., Milčić, M., Stanić-Vučinić, D.,& Ćirković Veličković, T.. (2018). Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions. in Food Chemistry
Elsevier Sci Ltd, Oxford., 269, 43-52.
https://doi.org/10.1016/j.foodchem.2018.06.138

Minić S, Radomirović M, Savkovic N, Radibratović M, Mihailović J, Vasović T, Nikolić M, Milčić M, Stanić-Vučinić D, Ćirković Veličković T. Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions. in Food Chemistry. 2018;269:43-52.
doi:10.1016/j.foodchem.2018.06.138 .

Minić, Simeon, Radomirović, Mirjana, Savkovic, Nina, Radibratović, Milica, Mihailović, Jelena, Vasović, Tamara, Nikolić, Milan, Milčić, Miloš, Stanić-Vučinić, Dragana, Ćirković Veličković, Tanja, "Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions" in Food Chemistry, 269 (2018):43-52,
https://doi.org/10.1016/j.foodchem.2018.06.138 . .

TY  - JOUR
AU  - Minić, Simeon
AU  - Stanić-Vučinić, Dragana
AU  - Radomirović, Mirjana
AU  - Radibratović, Milica
AU  - Milčić, Miloš
AU  - Nikolić, Milan
AU  - Ćirković Veličković, Tanja
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2478
AB  - Phycocyanobilin (PCB) is a blue tetrapyrrole chromophore of C-phycocyanin, the main protein of the microalga Spirulina, with numerous proven health-related benefits. We examined binding of PCB to bovine serum albumin (BSA) and how it affects protein and ligand stability. Protein fluorescence quenching and microscale thermophoresis demonstrated high-affinity binding (K-a = 2 x 10(6) M-1). Spectroscopic titration with molecular docking analysis revealed two binding sites on BSA, at the inter-domain cleft and at subdomain IB, while CD spectroscopy indicated stereo-selective binding of the P conformer of the pigment to the protein. The PCB protein complex showed increased thermal stability. Although complex formation partly masked the antioxidant properties of PCB and BSA, a mutually protective effect against free radical-induced oxidation was found. BSA could be suitable for delivery of PCB as a food colorant or bioactive component. Our results also highlight subtle differences between PCB binding to bovine vs. human serum albumin.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin
VL  - 239
SP  - 1090
EP  - 1099
DO  - 10.1016/j.foodchem.2017.07.066
ER  - 

@article{
author = "Minić, Simeon and Stanić-Vučinić, Dragana and Radomirović, Mirjana and Radibratović, Milica and Milčić, Miloš and Nikolić, Milan and Ćirković Veličković, Tanja",
year = "2018",
abstract = "Phycocyanobilin (PCB) is a blue tetrapyrrole chromophore of C-phycocyanin, the main protein of the microalga Spirulina, with numerous proven health-related benefits. We examined binding of PCB to bovine serum albumin (BSA) and how it affects protein and ligand stability. Protein fluorescence quenching and microscale thermophoresis demonstrated high-affinity binding (K-a = 2 x 10(6) M-1). Spectroscopic titration with molecular docking analysis revealed two binding sites on BSA, at the inter-domain cleft and at subdomain IB, while CD spectroscopy indicated stereo-selective binding of the P conformer of the pigment to the protein. The PCB protein complex showed increased thermal stability. Although complex formation partly masked the antioxidant properties of PCB and BSA, a mutually protective effect against free radical-induced oxidation was found. BSA could be suitable for delivery of PCB as a food colorant or bioactive component. Our results also highlight subtle differences between PCB binding to bovine vs. human serum albumin.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin",
volume = "239",
pages = "1090-1099",
doi = "10.1016/j.foodchem.2017.07.066"
}

Minić, S., Stanić-Vučinić, D., Radomirović, M., Radibratović, M., Milčić, M., Nikolić, M.,& Ćirković Veličković, T.. (2018). Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin. in Food Chemistry
Elsevier Sci Ltd, Oxford., 239, 1090-1099.
https://doi.org/10.1016/j.foodchem.2017.07.066

Minić S, Stanić-Vučinić D, Radomirović M, Radibratović M, Milčić M, Nikolić M, Ćirković Veličković T. Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin. in Food Chemistry. 2018;239:1090-1099.
doi:10.1016/j.foodchem.2017.07.066 .

Minić, Simeon, Stanić-Vučinić, Dragana, Radomirović, Mirjana, Radibratović, Milica, Milčić, Miloš, Nikolić, Milan, Ćirković Veličković, Tanja, "Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin" in Food Chemistry, 239 (2018):1090-1099,
https://doi.org/10.1016/j.foodchem.2017.07.066 . .

TY  - JOUR
AU  - Minić, Simeon
AU  - Stanić-Vučinić, Dragana
AU  - Radomirović, Mirjana
AU  - Radibratović, Milica
AU  - Milčić, Miloš
AU  - Nikolić, Milan
AU  - Ćirković Veličković, Tanja
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2984
AB  - Phycocyanobilin (PCB) is a blue tetrapyrrole chromophore of C-phycocyanin, the main protein of the microalga Spirulina, with numerous proven health-related benefits. We examined binding of PCB to bovine serum albumin (BSA) and how it affects protein and ligand stability. Protein fluorescence quenching and microscale thermophoresis demonstrated high-affinity binding (K-a = 2 x 10(6) M-1). Spectroscopic titration with molecular docking analysis revealed two binding sites on BSA, at the inter-domain cleft and at subdomain IB, while CD spectroscopy indicated stereo-selective binding of the P conformer of the pigment to the protein. The PCB protein complex showed increased thermal stability. Although complex formation partly masked the antioxidant properties of PCB and BSA, a mutually protective effect against free radical-induced oxidation was found. BSA could be suitable for delivery of PCB as a food colorant or bioactive component. Our results also highlight subtle differences between PCB binding to bovine vs. human serum albumin.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin
VL  - 239
SP  - 1090
EP  - 1099
DO  - 10.1016/j.foodchem.2017.07.066
ER  - 

@article{
author = "Minić, Simeon and Stanić-Vučinić, Dragana and Radomirović, Mirjana and Radibratović, Milica and Milčić, Miloš and Nikolić, Milan and Ćirković Veličković, Tanja",
year = "2018",
abstract = "Phycocyanobilin (PCB) is a blue tetrapyrrole chromophore of C-phycocyanin, the main protein of the microalga Spirulina, with numerous proven health-related benefits. We examined binding of PCB to bovine serum albumin (BSA) and how it affects protein and ligand stability. Protein fluorescence quenching and microscale thermophoresis demonstrated high-affinity binding (K-a = 2 x 10(6) M-1). Spectroscopic titration with molecular docking analysis revealed two binding sites on BSA, at the inter-domain cleft and at subdomain IB, while CD spectroscopy indicated stereo-selective binding of the P conformer of the pigment to the protein. The PCB protein complex showed increased thermal stability. Although complex formation partly masked the antioxidant properties of PCB and BSA, a mutually protective effect against free radical-induced oxidation was found. BSA could be suitable for delivery of PCB as a food colorant or bioactive component. Our results also highlight subtle differences between PCB binding to bovine vs. human serum albumin.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin",
volume = "239",
pages = "1090-1099",
doi = "10.1016/j.foodchem.2017.07.066"
}

Minić, S., Stanić-Vučinić, D., Radomirović, M., Radibratović, M., Milčić, M., Nikolić, M.,& Ćirković Veličković, T.. (2018). Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin. in Food Chemistry
Elsevier Sci Ltd, Oxford., 239, 1090-1099.
https://doi.org/10.1016/j.foodchem.2017.07.066

Minić S, Stanić-Vučinić D, Radomirović M, Radibratović M, Milčić M, Nikolić M, Ćirković Veličković T. Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin. in Food Chemistry. 2018;239:1090-1099.
doi:10.1016/j.foodchem.2017.07.066 .

Minić, Simeon, Stanić-Vučinić, Dragana, Radomirović, Mirjana, Radibratović, Milica, Milčić, Miloš, Nikolić, Milan, Ćirković Veličković, Tanja, "Characterization and effects of binding of food-derived bioactive phycocyanobilin to bovine serum albumin" in Food Chemistry, 239 (2018):1090-1099,
https://doi.org/10.1016/j.foodchem.2017.07.066 . .

TY  - JOUR
AU  - Minić, Simeon
AU  - Radomirović, Mirjana
AU  - Savkovic, Nina
AU  - Radibratović, Milica
AU  - Mihailović, Jelena
AU  - Vasović, Tamara
AU  - Nikolić, Milan
AU  - Milčić, Miloš
AU  - Stanić-Vučinić, Dragana
AU  - Ćirković Veličković, Tanja
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3022
AB  - In this study, we investigated structural aspects of covalent binding of food derived blue pigment phycocyanobilin (PCB) to bovine beta-lactoglobulin (BLG), major whey protein, by spectroscopic, electrophoretic, mass spectrometry and computational methods. At physiological pH (7.2), we found that covalent pigment binding via free cysteine residue is slow (k(a)=0.065 min(-1)), of moderate affinity (K-a=4x10(4) M-1), and stereo-selective. Binding also occurs at a broad pH range and under simulated gastrointestinal conditions. Adduct formation rises with pH, and in concentrated urea (k(a)=0.101 min(-1)). The BLG-PCB adduct has slightly altered secondary and tertiary protein structure, and bound PCB has higher fluorescence and more stretched conformation than free chromophore. Combination of steered molecular dynamic for disulfide exchange, non-covalent and covalent docking, favours Cys119 residue in protein calyx as target for covalent BLG-PCB adduct formation. Our results suggest that this adduct can serve as delivery system of bioactive PCB.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Chemistry
T1  - Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions
VL  - 269
SP  - 43
EP  - 52
DO  - 10.1016/j.foodchem.2018.06.138
ER  - 

@article{
author = "Minić, Simeon and Radomirović, Mirjana and Savkovic, Nina and Radibratović, Milica and Mihailović, Jelena and Vasović, Tamara and Nikolić, Milan and Milčić, Miloš and Stanić-Vučinić, Dragana and Ćirković Veličković, Tanja",
year = "2018",
abstract = "In this study, we investigated structural aspects of covalent binding of food derived blue pigment phycocyanobilin (PCB) to bovine beta-lactoglobulin (BLG), major whey protein, by spectroscopic, electrophoretic, mass spectrometry and computational methods. At physiological pH (7.2), we found that covalent pigment binding via free cysteine residue is slow (k(a)=0.065 min(-1)), of moderate affinity (K-a=4x10(4) M-1), and stereo-selective. Binding also occurs at a broad pH range and under simulated gastrointestinal conditions. Adduct formation rises with pH, and in concentrated urea (k(a)=0.101 min(-1)). The BLG-PCB adduct has slightly altered secondary and tertiary protein structure, and bound PCB has higher fluorescence and more stretched conformation than free chromophore. Combination of steered molecular dynamic for disulfide exchange, non-covalent and covalent docking, favours Cys119 residue in protein calyx as target for covalent BLG-PCB adduct formation. Our results suggest that this adduct can serve as delivery system of bioactive PCB.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Chemistry",
title = "Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions",
volume = "269",
pages = "43-52",
doi = "10.1016/j.foodchem.2018.06.138"
}

Minić, S., Radomirović, M., Savkovic, N., Radibratović, M., Mihailović, J., Vasović, T., Nikolić, M., Milčić, M., Stanić-Vučinić, D.,& Ćirković Veličković, T.. (2018). Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions. in Food Chemistry
Elsevier Sci Ltd, Oxford., 269, 43-52.
https://doi.org/10.1016/j.foodchem.2018.06.138

Minić S, Radomirović M, Savkovic N, Radibratović M, Mihailović J, Vasović T, Nikolić M, Milčić M, Stanić-Vučinić D, Ćirković Veličković T. Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions. in Food Chemistry. 2018;269:43-52.
doi:10.1016/j.foodchem.2018.06.138 .

Minić, Simeon, Radomirović, Mirjana, Savkovic, Nina, Radibratović, Milica, Mihailović, Jelena, Vasović, Tamara, Nikolić, Milan, Milčić, Miloš, Stanić-Vučinić, Dragana, Ćirković Veličković, Tanja, "Covalent binding of food-derived blue pigment phycocyanobilin to bovine beta-lactoglobulin under physiological conditions" in Food Chemistry, 269 (2018):43-52,
https://doi.org/10.1016/j.foodchem.2018.06.138 . .

TY  - JOUR
AU  - Aleksić, Jovana
AU  - Stojanović, Milovan
AU  - Baranac-Stojanović, Marija
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2451
AB  - We present an efficient, simple, metal- and solvent-free silica-gel-promoted synthesis of functionalized conjugated dienes by sequential aza-Michael/Michael reactions by starting from commercially available primary amines and propiolic esters. The scope and usefulness of the method is demonstrated for 31examples, including a range of propiolic esters, aliphatic amines, and differently substituted aromatic amines. For aliphatic amines, the products were obtained within 0.5 to 4h in 52 to 85% yield, compared with 3.5 to 22h under classical solution-phase synthesis, which proceeds with similar or lower yields. The method was found to be particularly useful for weakly nucleophilic aromatic amines, which provided products in 21 to 73% yield over 2.5 to 9.5h compared with yields of 0 to 49% over 1 to 6d under standard solution-phase conditions, and for more hydrophobic esters that gave products in yields of 47 to 79% over 1 to 3h compared with 0 to 45% over 4 to 114h in solvent.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Chemistry-An Asian Journal
T1  - Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes
VL  - 13
IS  - 14
SP  - 1811
EP  - 1835
DO  - 10.1002/asia.201800645
ER  - 

@article{
author = "Aleksić, Jovana and Stojanović, Milovan and Baranac-Stojanović, Marija",
year = "2018",
abstract = "We present an efficient, simple, metal- and solvent-free silica-gel-promoted synthesis of functionalized conjugated dienes by sequential aza-Michael/Michael reactions by starting from commercially available primary amines and propiolic esters. The scope and usefulness of the method is demonstrated for 31examples, including a range of propiolic esters, aliphatic amines, and differently substituted aromatic amines. For aliphatic amines, the products were obtained within 0.5 to 4h in 52 to 85% yield, compared with 3.5 to 22h under classical solution-phase synthesis, which proceeds with similar or lower yields. The method was found to be particularly useful for weakly nucleophilic aromatic amines, which provided products in 21 to 73% yield over 2.5 to 9.5h compared with yields of 0 to 49% over 1 to 6d under standard solution-phase conditions, and for more hydrophobic esters that gave products in yields of 47 to 79% over 1 to 3h compared with 0 to 45% over 4 to 114h in solvent.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Chemistry-An Asian Journal",
title = "Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes",
volume = "13",
number = "14",
pages = "1811-1835",
doi = "10.1002/asia.201800645"
}

Aleksić, J., Stojanović, M.,& Baranac-Stojanović, M.. (2018). Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes. in Chemistry-An Asian Journal
Wiley-V C H Verlag Gmbh, Weinheim., 13(14), 1811-1835.
https://doi.org/10.1002/asia.201800645

Aleksić J, Stojanović M, Baranac-Stojanović M. Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes. in Chemistry-An Asian Journal. 2018;13(14):1811-1835.
doi:10.1002/asia.201800645 .

Aleksić, Jovana, Stojanović, Milovan, Baranac-Stojanović, Marija, "Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes" in Chemistry-An Asian Journal, 13, no. 14 (2018):1811-1835,
https://doi.org/10.1002/asia.201800645 . .

TY  - JOUR
AU  - Aleksić, Jovana
AU  - Stojanović, Milovan
AU  - Baranac-Stojanović, Marija
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3135
AB  - We present an efficient, simple, metal- and solvent-free silica-gel-promoted synthesis of functionalized conjugated dienes by sequential aza-Michael/Michael reactions by starting from commercially available primary amines and propiolic esters. The scope and usefulness of the method is demonstrated for 31examples, including a range of propiolic esters, aliphatic amines, and differently substituted aromatic amines. For aliphatic amines, the products were obtained within 0.5 to 4h in 52 to 85% yield, compared with 3.5 to 22h under classical solution-phase synthesis, which proceeds with similar or lower yields. The method was found to be particularly useful for weakly nucleophilic aromatic amines, which provided products in 21 to 73% yield over 2.5 to 9.5h compared with yields of 0 to 49% over 1 to 6d under standard solution-phase conditions, and for more hydrophobic esters that gave products in yields of 47 to 79% over 1 to 3h compared with 0 to 45% over 4 to 114h in solvent.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Chemistry-An Asian Journal
T1  - Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes
VL  - 13
IS  - 14
SP  - 1811
EP  - 1835
DO  - 10.1002/asia.201800645
ER  - 

@article{
author = "Aleksić, Jovana and Stojanović, Milovan and Baranac-Stojanović, Marija",
year = "2018",
abstract = "We present an efficient, simple, metal- and solvent-free silica-gel-promoted synthesis of functionalized conjugated dienes by sequential aza-Michael/Michael reactions by starting from commercially available primary amines and propiolic esters. The scope and usefulness of the method is demonstrated for 31examples, including a range of propiolic esters, aliphatic amines, and differently substituted aromatic amines. For aliphatic amines, the products were obtained within 0.5 to 4h in 52 to 85% yield, compared with 3.5 to 22h under classical solution-phase synthesis, which proceeds with similar or lower yields. The method was found to be particularly useful for weakly nucleophilic aromatic amines, which provided products in 21 to 73% yield over 2.5 to 9.5h compared with yields of 0 to 49% over 1 to 6d under standard solution-phase conditions, and for more hydrophobic esters that gave products in yields of 47 to 79% over 1 to 3h compared with 0 to 45% over 4 to 114h in solvent.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Chemistry-An Asian Journal",
title = "Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes",
volume = "13",
number = "14",
pages = "1811-1835",
doi = "10.1002/asia.201800645"
}

Aleksić, J., Stojanović, M.,& Baranac-Stojanović, M.. (2018). Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes. in Chemistry-An Asian Journal
Wiley-V C H Verlag Gmbh, Weinheim., 13(14), 1811-1835.
https://doi.org/10.1002/asia.201800645

Aleksić J, Stojanović M, Baranac-Stojanović M. Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes. in Chemistry-An Asian Journal. 2018;13(14):1811-1835.
doi:10.1002/asia.201800645 .

Aleksić, Jovana, Stojanović, Milovan, Baranac-Stojanović, Marija, "Silica Gel as a Promoter of Sequential Aza-Michael/Michael Reactions of Amines and Propiolic Esters: Solvent- and Metal-Free Synthesis of Polyfunctionalized Conjugated Dienes" in Chemistry-An Asian Journal, 13, no. 14 (2018):1811-1835,
https://doi.org/10.1002/asia.201800645 . .

TY  - JOUR
AU  - Radibratović, Milica
AU  - Minić, Simeon
AU  - Stanić-Vučinić, Dragana
AU  - Nikolić, Milan
AU  - Milčić, Miloš
AU  - Ćirković Veličković, Tanja
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1891
AB  - Phycocyanobilin (PCB) binds with high affinity (2.2 x 10 6 M-1 at 25 degrees C) to human serum albumin (HSA) at sites located in IB and IIA subdomains. The aim of this study was to examine effects of PCB binding on protein conformation and stability. Using 300 ns molecular dynamics (MD) simulations, UV-VIS spectrophotometry, CD, FT-IR, spectrofluorimetry, thermal denaturation and susceptibility to trypsin digestion, we studied the effects of PCB binding on the stability and rigidity of HSA, as well as the conformational changes in PCB itself upon binding to the protein. MD simulation results demonstrated that HSA with PCB bound at any of the two sites showed greater rigidity and lower overall and individual domain flexibility compared to free HSA. Experimental data demonstrated an increase in the a-helical content of the protein and thermal and proteolytic stability upon ligand binding. PCB bound to HSA undergoes a conformational change to a more elongated conformation in the binding pockets of HSA. PCB binding to HSA stabilizes the structure of this flexible transport protein, making it more thermostable and resistant to proteolysis. The results from this work explain at molecular level, conformational changes and stabilization of HSA structure upon ligand binding. The resultant increased thermal and proteolytic stability of HSA may provide greater longevity to HSA in plasma.
PB  - Public Library Science, San Francisco
T2  - Plos One
T1  - Stabilization of Human Serum Albumin by the Binding of Phycocyanobilin, a Bioactive Chromophore of Blue-Green Alga Spirulina: Molecular Dynamics and Experimental Study
VL  - 11
IS  - 12
DO  - 10.1371/journal.pone.0167973
ER  - 

@article{
author = "Radibratović, Milica and Minić, Simeon and Stanić-Vučinić, Dragana and Nikolić, Milan and Milčić, Miloš and Ćirković Veličković, Tanja",
year = "2016",
abstract = "Phycocyanobilin (PCB) binds with high affinity (2.2 x 10 6 M-1 at 25 degrees C) to human serum albumin (HSA) at sites located in IB and IIA subdomains. The aim of this study was to examine effects of PCB binding on protein conformation and stability. Using 300 ns molecular dynamics (MD) simulations, UV-VIS spectrophotometry, CD, FT-IR, spectrofluorimetry, thermal denaturation and susceptibility to trypsin digestion, we studied the effects of PCB binding on the stability and rigidity of HSA, as well as the conformational changes in PCB itself upon binding to the protein. MD simulation results demonstrated that HSA with PCB bound at any of the two sites showed greater rigidity and lower overall and individual domain flexibility compared to free HSA. Experimental data demonstrated an increase in the a-helical content of the protein and thermal and proteolytic stability upon ligand binding. PCB bound to HSA undergoes a conformational change to a more elongated conformation in the binding pockets of HSA. PCB binding to HSA stabilizes the structure of this flexible transport protein, making it more thermostable and resistant to proteolysis. The results from this work explain at molecular level, conformational changes and stabilization of HSA structure upon ligand binding. The resultant increased thermal and proteolytic stability of HSA may provide greater longevity to HSA in plasma.",
publisher = "Public Library Science, San Francisco",
journal = "Plos One",
title = "Stabilization of Human Serum Albumin by the Binding of Phycocyanobilin, a Bioactive Chromophore of Blue-Green Alga Spirulina: Molecular Dynamics and Experimental Study",
volume = "11",
number = "12",
doi = "10.1371/journal.pone.0167973"
}

Radibratović, M., Minić, S., Stanić-Vučinić, D., Nikolić, M., Milčić, M.,& Ćirković Veličković, T.. (2016). Stabilization of Human Serum Albumin by the Binding of Phycocyanobilin, a Bioactive Chromophore of Blue-Green Alga Spirulina: Molecular Dynamics and Experimental Study. in Plos One
Public Library Science, San Francisco., 11(12).
https://doi.org/10.1371/journal.pone.0167973

Radibratović M, Minić S, Stanić-Vučinić D, Nikolić M, Milčić M, Ćirković Veličković T. Stabilization of Human Serum Albumin by the Binding of Phycocyanobilin, a Bioactive Chromophore of Blue-Green Alga Spirulina: Molecular Dynamics and Experimental Study. in Plos One. 2016;11(12).
doi:10.1371/journal.pone.0167973 .

Radibratović, Milica, Minić, Simeon, Stanić-Vučinić, Dragana, Nikolić, Milan, Milčić, Miloš, Ćirković Veličković, Tanja, "Stabilization of Human Serum Albumin by the Binding of Phycocyanobilin, a Bioactive Chromophore of Blue-Green Alga Spirulina: Molecular Dynamics and Experimental Study" in Plos One, 11, no. 12 (2016),
https://doi.org/10.1371/journal.pone.0167973 . .

TY  - JOUR
AU  - Apostolovic, Danijela
AU  - Stanić-Vučinić, Dragana
AU  - de, Jongh Harmen H J
AU  - de, Jong Govardus A H
AU  - Mihailović, Jelena
AU  - Radosavljević, Jelena
AU  - Radibratović, Milica
AU  - Nordlee, Julie A
AU  - Baumert, Joseph L
AU  - Milčić, Miloš
AU  - Taylor, Steve L
AU  - Clua, Nuria Garrido
AU  - Ćirković Veličković, Tanja
AU  - Koppelman, Stef J
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1853
AB  - Conglutins represent the major peanut allergens and are renowned for their resistance to gastrointestinal digestion. Our aim was to characterize the digestion-resistant peptides (DRPs) of conglutins by biochemical and biophysical methods followed by a molecular dynamics simulation in order to better understand the molecular basis of food protein allergenicity. We have mapped proteolysis sites at the N- and C-termini and at a limited internal segment, while other potential proteolysis sites remained unaffected. Molecular dynamics simulation showed that proteolysis only occurred in the vibrant regions of the proteins. DRPs appeared to be conformationally stable as intact conglutins. Also, the overall secondary structure and IgE-binding potency of DRPs was comparable to that of intact conglutins. The stability of conglutins toward gastro-intestinal digestion, combined with the conformational stability of the resulting DRPs provide conditions for optimal exposure to the intestinal immune system, providing an explanation for the extraordinary allergenicity of peanut conglutins.
PB  - Nature Publishing Group, London
T2  - Scientific Reports
T1  - Conformational stability of digestion-resistant peptides of peanut conglutins reveals the molecular basis of their allergenicity
VL  - 6
DO  - 10.1038/srep29249
ER  - 

@article{
author = "Apostolovic, Danijela and Stanić-Vučinić, Dragana and de, Jongh Harmen H J and de, Jong Govardus A H and Mihailović, Jelena and Radosavljević, Jelena and Radibratović, Milica and Nordlee, Julie A and Baumert, Joseph L and Milčić, Miloš and Taylor, Steve L and Clua, Nuria Garrido and Ćirković Veličković, Tanja and Koppelman, Stef J",
year = "2016",
abstract = "Conglutins represent the major peanut allergens and are renowned for their resistance to gastrointestinal digestion. Our aim was to characterize the digestion-resistant peptides (DRPs) of conglutins by biochemical and biophysical methods followed by a molecular dynamics simulation in order to better understand the molecular basis of food protein allergenicity. We have mapped proteolysis sites at the N- and C-termini and at a limited internal segment, while other potential proteolysis sites remained unaffected. Molecular dynamics simulation showed that proteolysis only occurred in the vibrant regions of the proteins. DRPs appeared to be conformationally stable as intact conglutins. Also, the overall secondary structure and IgE-binding potency of DRPs was comparable to that of intact conglutins. The stability of conglutins toward gastro-intestinal digestion, combined with the conformational stability of the resulting DRPs provide conditions for optimal exposure to the intestinal immune system, providing an explanation for the extraordinary allergenicity of peanut conglutins.",
publisher = "Nature Publishing Group, London",
journal = "Scientific Reports",
title = "Conformational stability of digestion-resistant peptides of peanut conglutins reveals the molecular basis of their allergenicity",
volume = "6",
doi = "10.1038/srep29249"
}

Apostolovic, D., Stanić-Vučinić, D., de, J. H. H. J., de, J. G. A. H., Mihailović, J., Radosavljević, J., Radibratović, M., Nordlee, J. A., Baumert, J. L., Milčić, M., Taylor, S. L., Clua, N. G., Ćirković Veličković, T.,& Koppelman, S. J.. (2016). Conformational stability of digestion-resistant peptides of peanut conglutins reveals the molecular basis of their allergenicity. in Scientific Reports
Nature Publishing Group, London., 6.
https://doi.org/10.1038/srep29249

Apostolovic D, Stanić-Vučinić D, de JHHJ, de JGAH, Mihailović J, Radosavljević J, Radibratović M, Nordlee JA, Baumert JL, Milčić M, Taylor SL, Clua NG, Ćirković Veličković T, Koppelman SJ. Conformational stability of digestion-resistant peptides of peanut conglutins reveals the molecular basis of their allergenicity. in Scientific Reports. 2016;6.
doi:10.1038/srep29249 .

Apostolovic, Danijela, Stanić-Vučinić, Dragana, de, Jongh Harmen H J, de, Jong Govardus A H, Mihailović, Jelena, Radosavljević, Jelena, Radibratović, Milica, Nordlee, Julie A, Baumert, Joseph L, Milčić, Miloš, Taylor, Steve L, Clua, Nuria Garrido, Ćirković Veličković, Tanja, Koppelman, Stef J, "Conformational stability of digestion-resistant peptides of peanut conglutins reveals the molecular basis of their allergenicity" in Scientific Reports, 6 (2016),
https://doi.org/10.1038/srep29249 . .

TY  - JOUR
AU  - Grozdanović, Milica
AU  - Čavić, Milena
AU  - Nešić, Andrijana
AU  - Anđelković, Uroš
AU  - Akbari, Peyman
AU  - Smit, Joost J.
AU  - Gavrović-Jankulović, Marija
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3154
AB  - Background: The intestinal epithelium forms a barrier that food allergens must cross in order to induce sensitization. The aim of this study was to evaluate the impact of the plant-derived food cysteine protease - actinidin (Act d1) on the integrity of intestinal epithelium tight junctions (TJs). Methods: Effects of Act d1 on the intestinal epithelium were evaluated in Caco-2 monolayers and in a mouse model by measuring transepithelial resistance and in vivo permeability. Integrity of the tight junctions was analyzed by confocal microscopy. Proteolysis of TJ protein occludin was evaluated by mass spectrometry. Results: Actinidin (1 mg/mL) reduced the transepithelial resistance of the cell monolayer by 18.1% (after 1 h) and 25.6% (after 4 h). This loss of barrier function was associated with Act d 1 disruption of the occludin and zonula occludens (ZO)-1 network. The effect on intestinal permeability in vivo was demonstrated by the significantly higher concentration of 40 kDa FITC-dextran (233 mu g/mL) that passed from the intestine into the serum of Act d1 treated mice in comparison to the control group (0.5 mu g/mL). Human occludin was fragmented, and putative Act d1 cleavage sites were identified in extracellular loops of human occludin. Conclusion: Act d1 caused protease-dependent disruption of tight junctions in confluent Caco-2 cells and increased intestinal permeability in mice. General significance: In line with the observed effects of food cysteine proteases in occupational allergy, these results suggest that disruption of tight junctions by food cysteine proteases may contribute to the process of sensitization in food allergy. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Biochimica et Biophysica Acta: General Subjects
T1  - Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions
VL  - 1860
IS  - 3
SP  - 516
EP  - 526
DO  - 10.1016/j.bbagen.2015.12.005
ER  - 

@article{
author = "Grozdanović, Milica and Čavić, Milena and Nešić, Andrijana and Anđelković, Uroš and Akbari, Peyman and Smit, Joost J. and Gavrović-Jankulović, Marija",
year = "2016",
abstract = "Background: The intestinal epithelium forms a barrier that food allergens must cross in order to induce sensitization. The aim of this study was to evaluate the impact of the plant-derived food cysteine protease - actinidin (Act d1) on the integrity of intestinal epithelium tight junctions (TJs). Methods: Effects of Act d1 on the intestinal epithelium were evaluated in Caco-2 monolayers and in a mouse model by measuring transepithelial resistance and in vivo permeability. Integrity of the tight junctions was analyzed by confocal microscopy. Proteolysis of TJ protein occludin was evaluated by mass spectrometry. Results: Actinidin (1 mg/mL) reduced the transepithelial resistance of the cell monolayer by 18.1% (after 1 h) and 25.6% (after 4 h). This loss of barrier function was associated with Act d 1 disruption of the occludin and zonula occludens (ZO)-1 network. The effect on intestinal permeability in vivo was demonstrated by the significantly higher concentration of 40 kDa FITC-dextran (233 mu g/mL) that passed from the intestine into the serum of Act d1 treated mice in comparison to the control group (0.5 mu g/mL). Human occludin was fragmented, and putative Act d1 cleavage sites were identified in extracellular loops of human occludin. Conclusion: Act d1 caused protease-dependent disruption of tight junctions in confluent Caco-2 cells and increased intestinal permeability in mice. General significance: In line with the observed effects of food cysteine proteases in occupational allergy, these results suggest that disruption of tight junctions by food cysteine proteases may contribute to the process of sensitization in food allergy. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Biochimica et Biophysica Acta: General Subjects",
title = "Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions",
volume = "1860",
number = "3",
pages = "516-526",
doi = "10.1016/j.bbagen.2015.12.005"
}

Grozdanović, M., Čavić, M., Nešić, A., Anđelković, U., Akbari, P., Smit, J. J.,& Gavrović-Jankulović, M.. (2016). Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions. in Biochimica et Biophysica Acta: General Subjects
Elsevier., 1860(3), 516-526.
https://doi.org/10.1016/j.bbagen.2015.12.005

Grozdanović M, Čavić M, Nešić A, Anđelković U, Akbari P, Smit JJ, Gavrović-Jankulović M. Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions. in Biochimica et Biophysica Acta: General Subjects. 2016;1860(3):516-526.
doi:10.1016/j.bbagen.2015.12.005 .

Grozdanović, Milica, Čavić, Milena, Nešić, Andrijana, Anđelković, Uroš, Akbari, Peyman, Smit, Joost J., Gavrović-Jankulović, Marija, "Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions" in Biochimica et Biophysica Acta: General Subjects, 1860, no. 3 (2016):516-526,
https://doi.org/10.1016/j.bbagen.2015.12.005 . .

TY  - JOUR
AU  - Grozdanović, Milica
AU  - Čavić, Milena
AU  - Nešić, Andrijana
AU  - Anđelković, Uroš
AU  - Akbari, Peyman
AU  - Smit, Joost J.
AU  - Gavrović-Jankulović, Marija
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3155
AB  - Background: The intestinal epithelium forms a barrier that food allergens must cross in order to induce sensitization. The aim of this study was to evaluate the impact of the plant-derived food cysteine protease - actinidin (Act d1) on the integrity of intestinal epithelium tight junctions (TJs). Methods: Effects of Act d1 on the intestinal epithelium were evaluated in Caco-2 monolayers and in a mouse model by measuring transepithelial resistance and in vivo permeability. Integrity of the tight junctions was analyzed by confocal microscopy. Proteolysis of TJ protein occludin was evaluated by mass spectrometry. Results: Actinidin (1 mg/mL) reduced the transepithelial resistance of the cell monolayer by 18.1% (after 1 h) and 25.6% (after 4 h). This loss of barrier function was associated with Act d 1 disruption of the occludin and zonula occludens (ZO)-1 network. The effect on intestinal permeability in vivo was demonstrated by the significantly higher concentration of 40 kDa FITC-dextran (233 mu g/mL) that passed from the intestine into the serum of Act d1 treated mice in comparison to the control group (0.5 mu g/mL). Human occludin was fragmented, and putative Act d1 cleavage sites were identified in extracellular loops of human occludin. Conclusion: Act d1 caused protease-dependent disruption of tight junctions in confluent Caco-2 cells and increased intestinal permeability in mice. General significance: In line with the observed effects of food cysteine proteases in occupational allergy, these results suggest that disruption of tight junctions by food cysteine proteases may contribute to the process of sensitization in food allergy. (C) 2015 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Biochimica et Biophysica Acta: General Subjects
T1  - Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions
VL  - 1860
IS  - 3
SP  - 516
EP  - 526
DO  - 10.1016/j.bbagen.2015.12.005
ER  - 

@article{
author = "Grozdanović, Milica and Čavić, Milena and Nešić, Andrijana and Anđelković, Uroš and Akbari, Peyman and Smit, Joost J. and Gavrović-Jankulović, Marija",
year = "2016",
abstract = "Background: The intestinal epithelium forms a barrier that food allergens must cross in order to induce sensitization. The aim of this study was to evaluate the impact of the plant-derived food cysteine protease - actinidin (Act d1) on the integrity of intestinal epithelium tight junctions (TJs). Methods: Effects of Act d1 on the intestinal epithelium were evaluated in Caco-2 monolayers and in a mouse model by measuring transepithelial resistance and in vivo permeability. Integrity of the tight junctions was analyzed by confocal microscopy. Proteolysis of TJ protein occludin was evaluated by mass spectrometry. Results: Actinidin (1 mg/mL) reduced the transepithelial resistance of the cell monolayer by 18.1% (after 1 h) and 25.6% (after 4 h). This loss of barrier function was associated with Act d 1 disruption of the occludin and zonula occludens (ZO)-1 network. The effect on intestinal permeability in vivo was demonstrated by the significantly higher concentration of 40 kDa FITC-dextran (233 mu g/mL) that passed from the intestine into the serum of Act d1 treated mice in comparison to the control group (0.5 mu g/mL). Human occludin was fragmented, and putative Act d1 cleavage sites were identified in extracellular loops of human occludin. Conclusion: Act d1 caused protease-dependent disruption of tight junctions in confluent Caco-2 cells and increased intestinal permeability in mice. General significance: In line with the observed effects of food cysteine proteases in occupational allergy, these results suggest that disruption of tight junctions by food cysteine proteases may contribute to the process of sensitization in food allergy. (C) 2015 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Biochimica et Biophysica Acta: General Subjects",
title = "Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions",
volume = "1860",
number = "3",
pages = "516-526",
doi = "10.1016/j.bbagen.2015.12.005"
}

Grozdanović, M., Čavić, M., Nešić, A., Anđelković, U., Akbari, P., Smit, J. J.,& Gavrović-Jankulović, M.. (2016). Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions. in Biochimica et Biophysica Acta: General Subjects
Elsevier., 1860(3), 516-526.
https://doi.org/10.1016/j.bbagen.2015.12.005

Grozdanović M, Čavić M, Nešić A, Anđelković U, Akbari P, Smit JJ, Gavrović-Jankulović M. Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions. in Biochimica et Biophysica Acta: General Subjects. 2016;1860(3):516-526.
doi:10.1016/j.bbagen.2015.12.005 .

Grozdanović, Milica, Čavić, Milena, Nešić, Andrijana, Anđelković, Uroš, Akbari, Peyman, Smit, Joost J., Gavrović-Jankulović, Marija, "Kiwifruit cysteine protease actinidin compromises the intestinal barrier by disrupting tight junctions" in Biochimica et Biophysica Acta: General Subjects, 1860, no. 3 (2016):516-526,
https://doi.org/10.1016/j.bbagen.2015.12.005 . .

TY  - JOUR
AU  - Aonyas, Munera M
AU  - Nesic, Jelena
AU  - Jović, Milica
AU  - Marković, Marijana
AU  - Dojčinović, Biljana
AU  - Obradović, Bratislav M.
AU  - Roglić, Goran
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1952
AB  - The aim of this study was to investigate the degradation of the non-ionic surfactant Triton X-100 (TX-100) by using an advanced oxidation process in a non-thermal plasma reactor based on water falling film dielectric barrier discharge (DBD). The effects of two catalytic plasma systems, Fe2+/DBD and H2O2/DBD, were tested to improve the degradation of TX-100 and the mineralization efficiency in the DBD reactor. Both catalytic systems exhibited significant improvements in degradation efficiency, especially in the beginning of the treatment: the efficiency increased from 23 to 88 and 50%, for 5 mgL(-1) Fe2+/DBD and 10 mmol L-1 H2O2/DBD, respectively. The mineralization efficiency of TX-100 in the non-catalytic DBD treatment was very low (1%), but with addition of catalysts, the mineralization efficiency was drastically improved, with H2O2/DBD at 4-34% (depending on the H2O2 concentration) and Fe2+/DBD at 2-21% (depending on the Fe2+ concentration). Degradation products of TX-100 in non-catalytic and two catalytic systems were identified using UHPLC-Orbitrap-MS. Based on the degradation products that were identified, a simple mechanistic scheme was proposed. MS analysis revealed that degradation of TX-100 in the DBD reactor occurred by shortening the ethoxy chain. In the presence of catalysts, there are additional reactions of cleavage of the alkyl chain followed by formation of polyethoxylated phenol (H2O2/DBD) and addition of OH center dot radicals onto the aromatic ring (Fe2+/DBD). The final degradation products did not cause any significant toxic effects to Vibrio fischeri or Artemia salina.
PB  - Wiley-Blackwell, Hoboken
T2  - Clean-Soil Air Water
T1  - Degradation of Triton X-100 in Water Falling Film Dielectric Barrier Discharge Reactor
VL  - 44
IS  - 4
SP  - 422
EP  - 429
DO  - 10.1002/clen.201500501
ER  - 

@article{
author = "Aonyas, Munera M and Nesic, Jelena and Jović, Milica and Marković, Marijana and Dojčinović, Biljana and Obradović, Bratislav M. and Roglić, Goran",
year = "2016",
abstract = "The aim of this study was to investigate the degradation of the non-ionic surfactant Triton X-100 (TX-100) by using an advanced oxidation process in a non-thermal plasma reactor based on water falling film dielectric barrier discharge (DBD). The effects of two catalytic plasma systems, Fe2+/DBD and H2O2/DBD, were tested to improve the degradation of TX-100 and the mineralization efficiency in the DBD reactor. Both catalytic systems exhibited significant improvements in degradation efficiency, especially in the beginning of the treatment: the efficiency increased from 23 to 88 and 50%, for 5 mgL(-1) Fe2+/DBD and 10 mmol L-1 H2O2/DBD, respectively. The mineralization efficiency of TX-100 in the non-catalytic DBD treatment was very low (1%), but with addition of catalysts, the mineralization efficiency was drastically improved, with H2O2/DBD at 4-34% (depending on the H2O2 concentration) and Fe2+/DBD at 2-21% (depending on the Fe2+ concentration). Degradation products of TX-100 in non-catalytic and two catalytic systems were identified using UHPLC-Orbitrap-MS. Based on the degradation products that were identified, a simple mechanistic scheme was proposed. MS analysis revealed that degradation of TX-100 in the DBD reactor occurred by shortening the ethoxy chain. In the presence of catalysts, there are additional reactions of cleavage of the alkyl chain followed by formation of polyethoxylated phenol (H2O2/DBD) and addition of OH center dot radicals onto the aromatic ring (Fe2+/DBD). The final degradation products did not cause any significant toxic effects to Vibrio fischeri or Artemia salina.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Clean-Soil Air Water",
title = "Degradation of Triton X-100 in Water Falling Film Dielectric Barrier Discharge Reactor",
volume = "44",
number = "4",
pages = "422-429",
doi = "10.1002/clen.201500501"
}

Aonyas, M. M., Nesic, J., Jović, M., Marković, M., Dojčinović, B., Obradović, B. M.,& Roglić, G.. (2016). Degradation of Triton X-100 in Water Falling Film Dielectric Barrier Discharge Reactor. in Clean-Soil Air Water
Wiley-Blackwell, Hoboken., 44(4), 422-429.
https://doi.org/10.1002/clen.201500501

Aonyas MM, Nesic J, Jović M, Marković M, Dojčinović B, Obradović BM, Roglić G. Degradation of Triton X-100 in Water Falling Film Dielectric Barrier Discharge Reactor. in Clean-Soil Air Water. 2016;44(4):422-429.
doi:10.1002/clen.201500501 .

Aonyas, Munera M, Nesic, Jelena, Jović, Milica, Marković, Marijana, Dojčinović, Biljana, Obradović, Bratislav M., Roglić, Goran, "Degradation of Triton X-100 in Water Falling Film Dielectric Barrier Discharge Reactor" in Clean-Soil Air Water, 44, no. 4 (2016):422-429,
https://doi.org/10.1002/clen.201500501 . .

TY  - JOUR
AU  - Vilipić, Jovana P.
AU  - Novaković, Irena
AU  - Zlatović, Mario
AU  - Vujčić, Miroslava
AU  - Tufegdžić, Srđan
AU  - Sladić, Dušan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2049
AB  - The interactions of nine amino acid derivatives of tert-butylquinone with biomacromolecules were studied. Sodium dodecyl sulphate (SDS) gel electrophoresis and mass spectrometry confirmed the absence of modifications of lysozyme by any of the synthesized compounds. Spectrophotometric studies demonstrated hyperchromism, i.e., the existence of interactions between the quinones and calf thymus DNA (CT-DNA). Determination of the binding constants by absorption titration indicated weak interactions between the quinone derivatives and CT-DNA. The quenching of fluorescence of the intercalator ethidium bromide (EB) from the EB-CT-DNA system and of the minor groove binder Hoechst 33258 (H) from the H-CT-DNA system by the synthesized derivatives indicated interactions of the compounds and CT-DNA. Circular dichroism (CD) spectra demonstrated a non-intercalative binding mode of the quinone derivatives to CT-DNA. Molecular docking results confirmed binding to the minor groove. The electrophoretic pattern showed no cleavage of the pUC19 plasmid in the presence of any of the synthesized compounds. The ability of the derivatives to scavenge radicals was confirmed by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test. All the presented results suggest that the DNA minor groove binding is the principal mechanism of action of the examined amino acid derivatives.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Interactions of cytotoxic amino acid derivatives of tert-butylquinone with DNA and lysozyme
VL  - 81
IS  - 12
SP  - 1345
EP  - 1358
DO  - 10.2298/JSC160725101V
ER  - 

@article{
author = "Vilipić, Jovana P. and Novaković, Irena and Zlatović, Mario and Vujčić, Miroslava and Tufegdžić, Srđan and Sladić, Dušan",
year = "2016",
abstract = "The interactions of nine amino acid derivatives of tert-butylquinone with biomacromolecules were studied. Sodium dodecyl sulphate (SDS) gel electrophoresis and mass spectrometry confirmed the absence of modifications of lysozyme by any of the synthesized compounds. Spectrophotometric studies demonstrated hyperchromism, i.e., the existence of interactions between the quinones and calf thymus DNA (CT-DNA). Determination of the binding constants by absorption titration indicated weak interactions between the quinone derivatives and CT-DNA. The quenching of fluorescence of the intercalator ethidium bromide (EB) from the EB-CT-DNA system and of the minor groove binder Hoechst 33258 (H) from the H-CT-DNA system by the synthesized derivatives indicated interactions of the compounds and CT-DNA. Circular dichroism (CD) spectra demonstrated a non-intercalative binding mode of the quinone derivatives to CT-DNA. Molecular docking results confirmed binding to the minor groove. The electrophoretic pattern showed no cleavage of the pUC19 plasmid in the presence of any of the synthesized compounds. The ability of the derivatives to scavenge radicals was confirmed by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test. All the presented results suggest that the DNA minor groove binding is the principal mechanism of action of the examined amino acid derivatives.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Interactions of cytotoxic amino acid derivatives of tert-butylquinone with DNA and lysozyme",
volume = "81",
number = "12",
pages = "1345-1358",
doi = "10.2298/JSC160725101V"
}

Vilipić, J. P., Novaković, I., Zlatović, M., Vujčić, M., Tufegdžić, S.,& Sladić, D.. (2016). Interactions of cytotoxic amino acid derivatives of tert-butylquinone with DNA and lysozyme. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 81(12), 1345-1358.
https://doi.org/10.2298/JSC160725101V

Vilipić JP, Novaković I, Zlatović M, Vujčić M, Tufegdžić S, Sladić D. Interactions of cytotoxic amino acid derivatives of tert-butylquinone with DNA and lysozyme. in Journal of the Serbian Chemical Society. 2016;81(12):1345-1358.
doi:10.2298/JSC160725101V .

Vilipić, Jovana P., Novaković, Irena, Zlatović, Mario, Vujčić, Miroslava, Tufegdžić, Srđan, Sladić, Dušan, "Interactions of cytotoxic amino acid derivatives of tert-butylquinone with DNA and lysozyme" in Journal of the Serbian Chemical Society, 81, no. 12 (2016):1345-1358,
https://doi.org/10.2298/JSC160725101V . .

TY  - JOUR
AU  - Vulović, Bojan
AU  - Kolarski, Dusan
AU  - Bihelović, Filip
AU  - Matović, Radomir
AU  - Gruden, Maja
AU  - Saičić, Radomir N.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1847
AB  - 1,6-Diynes with a t-butylcarbonate group in the propargylic position undergo gold(I)-catalyzed dominocyclization which affords alpha-hydroxycyclohexenones. The described sequence can be applied on functionalized, highly oxygenated substrates, as examplified in the synthesis of (-)-gabosine H and its epimer.
PB  - American Chemical Society (ACS)
T2  - Organic Letters
T1  - Gold(I)-Catalyzed Domino Cyclizations of Diynes for the Synthesis of Functionalized Cyclohexenone Derivatives. Total Synthesis of (-)-Gabosine H and (-)-6-epi-Gabosine H
VL  - 18
IS  - 15
SP  - 3886
EP  - 3889
DO  - 10.1021/acs.orglett.6b01898
ER  - 

@article{
author = "Vulović, Bojan and Kolarski, Dusan and Bihelović, Filip and Matović, Radomir and Gruden, Maja and Saičić, Radomir N.",
year = "2016",
abstract = "1,6-Diynes with a t-butylcarbonate group in the propargylic position undergo gold(I)-catalyzed dominocyclization which affords alpha-hydroxycyclohexenones. The described sequence can be applied on functionalized, highly oxygenated substrates, as examplified in the synthesis of (-)-gabosine H and its epimer.",
publisher = "American Chemical Society (ACS)",
journal = "Organic Letters",
title = "Gold(I)-Catalyzed Domino Cyclizations of Diynes for the Synthesis of Functionalized Cyclohexenone Derivatives. Total Synthesis of (-)-Gabosine H and (-)-6-epi-Gabosine H",
volume = "18",
number = "15",
pages = "3886-3889",
doi = "10.1021/acs.orglett.6b01898"
}

Vulović, B., Kolarski, D., Bihelović, F., Matović, R., Gruden, M.,& Saičić, R. N.. (2016). Gold(I)-Catalyzed Domino Cyclizations of Diynes for the Synthesis of Functionalized Cyclohexenone Derivatives. Total Synthesis of (-)-Gabosine H and (-)-6-epi-Gabosine H. in Organic Letters
American Chemical Society (ACS)., 18(15), 3886-3889.
https://doi.org/10.1021/acs.orglett.6b01898

Vulović B, Kolarski D, Bihelović F, Matović R, Gruden M, Saičić RN. Gold(I)-Catalyzed Domino Cyclizations of Diynes for the Synthesis of Functionalized Cyclohexenone Derivatives. Total Synthesis of (-)-Gabosine H and (-)-6-epi-Gabosine H. in Organic Letters. 2016;18(15):3886-3889.
doi:10.1021/acs.orglett.6b01898 .

Vulović, Bojan, Kolarski, Dusan, Bihelović, Filip, Matović, Radomir, Gruden, Maja, Saičić, Radomir N., "Gold(I)-Catalyzed Domino Cyclizations of Diynes for the Synthesis of Functionalized Cyclohexenone Derivatives. Total Synthesis of (-)-Gabosine H and (-)-6-epi-Gabosine H" in Organic Letters, 18, no. 15 (2016):3886-3889,
https://doi.org/10.1021/acs.orglett.6b01898 . .

TY  - CONF
AU  - Marković, Olivera
AU  - Cvijetić, Ilija
AU  - Zlatović, Mario
AU  - Opsenica, Igor
AU  - Terzić-Jovanović, Nataša
AU  - Šolaja, Bogdan
AU  - Verbić, Tatjana
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3401
AB  - Tested compounds, previously synthesized, are derivatives of chloroquine, drug commonly used in the treatment and prevention of malaria. Interaction between tested compounds and Human serum albumin (HSA) has been studied by fluorescence spectroscopy in phosphate buffered saline (1× PBS, pH 7.4) . Molecular docking studies were used to determine HSA–compound binding mode.
PB  - International Association of Physical Chemists
C3  - 4th World Conference on Physico-Chemical Methods in Drug Discovery and Development Red Island, Croatia, September 21-24, 2015 - Book of Abstracts
T1  - Human serum albumin binding of certain antimalarials
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_cer_3401
ER  - 

@conference{
author = "Marković, Olivera and Cvijetić, Ilija and Zlatović, Mario and Opsenica, Igor and Terzić-Jovanović, Nataša and Šolaja, Bogdan and Verbić, Tatjana",
year = "2015",
abstract = "Tested compounds, previously synthesized, are derivatives of chloroquine, drug commonly used in the treatment and prevention of malaria. Interaction between tested compounds and Human serum albumin (HSA) has been studied by fluorescence spectroscopy in phosphate buffered saline (1× PBS, pH 7.4) . Molecular docking studies were used to determine HSA–compound binding mode.",
publisher = "International Association of Physical Chemists",
journal = "4th World Conference on Physico-Chemical Methods in Drug Discovery and Development Red Island, Croatia, September 21-24, 2015 - Book of Abstracts",
title = "Human serum albumin binding of certain antimalarials",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_cer_3401"
}

Marković, O., Cvijetić, I., Zlatović, M., Opsenica, I., Terzić-Jovanović, N., Šolaja, B.,& Verbić, T.. (2015). Human serum albumin binding of certain antimalarials. in 4th World Conference on Physico-Chemical Methods in Drug Discovery and Development Red Island, Croatia, September 21-24, 2015 - Book of Abstracts
International Association of Physical Chemists., 67-67.
https://hdl.handle.net/21.15107/rcub_cer_3401

Marković O, Cvijetić I, Zlatović M, Opsenica I, Terzić-Jovanović N, Šolaja B, Verbić T. Human serum albumin binding of certain antimalarials. in 4th World Conference on Physico-Chemical Methods in Drug Discovery and Development Red Island, Croatia, September 21-24, 2015 - Book of Abstracts. 2015;:67-67.
https://hdl.handle.net/21.15107/rcub_cer_3401 .

Marković, Olivera, Cvijetić, Ilija, Zlatović, Mario, Opsenica, Igor, Terzić-Jovanović, Nataša, Šolaja, Bogdan, Verbić, Tatjana, "Human serum albumin binding of certain antimalarials" in 4th World Conference on Physico-Chemical Methods in Drug Discovery and Development Red Island, Croatia, September 21-24, 2015 - Book of Abstracts (2015):67-67,
https://hdl.handle.net/21.15107/rcub_cer_3401 .

TY  - JOUR
AU  - Minić, Simeon
AU  - Milčić, Miloš
AU  - Stanić-Vučinić, Dragana
AU  - Radibratović, Milica
AU  - Sotiroudis, Theodore G.
AU  - Nikolić, Milan
AU  - Ćirković Veličković, Tanja
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1624
AB  - Human serum albumin (HSA) is an important regulator of the pharmacokinetic properties of bioactive compounds. Phycocyanobilin is a blue tetrapyrrole chromophore of C-phycocyanin with proven health-promoting activities. Despite its structural similarity to bilirubin, the conformation it adopts in aqueous solution is different and the pigment is more soluble than bilirubin. The aim of our study was to examine binding of phycocyanobilin for HSA and to investigate its competition with bilirubin. Based on a computational approach, we demonstrated two putative high-affinity binding pockets on HSA of virtually identical energies for the neutral and anion forms of bilirubin, but with slightly favorable predictions for anion forms of phycocyanobilin. Computational prediction of phycocyanobilin pK(a) values suggested a monoanion form to be the most stable form at physiological conditions. The computationally predicted binding sites for phycocyanobilin were identical to the two previously identified binding sites for bilirubin (subdomains IB and IIA). Results obtained by protein and pigment fluorescence measurements, circular dichroism, and competition experiments confirmed high affinity (binding constant of 2.2 x 10(6) M-1 at 25 degrees C), stereo-selective binding of phycocyanobilin M-conformer to HSA and its competition with bilirubin, warfarin and hemin. Our experimental data confirm that phycocyanobilin binds to IB and IIA binding site of HSA with an affinity similar to bilirubin. In conditions characterized by an increased bilirubin plasma concentration, or intake of drugs binding to IB or IIA binding site, pharmacokinetics of phycocyanobilin may also be changed.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Phycocyanobilin, a bioactive tetrapyrrolic compound of blue-green alga Spirulina, binds with high affinity and competes with bilirubin for binding on human serum albumin
VL  - 5
IS  - 76
SP  - 61787
EP  - 61798
DO  - 10.1039/c5ra05534b
ER  - 

@article{
author = "Minić, Simeon and Milčić, Miloš and Stanić-Vučinić, Dragana and Radibratović, Milica and Sotiroudis, Theodore G. and Nikolić, Milan and Ćirković Veličković, Tanja",
year = "2015",
abstract = "Human serum albumin (HSA) is an important regulator of the pharmacokinetic properties of bioactive compounds. Phycocyanobilin is a blue tetrapyrrole chromophore of C-phycocyanin with proven health-promoting activities. Despite its structural similarity to bilirubin, the conformation it adopts in aqueous solution is different and the pigment is more soluble than bilirubin. The aim of our study was to examine binding of phycocyanobilin for HSA and to investigate its competition with bilirubin. Based on a computational approach, we demonstrated two putative high-affinity binding pockets on HSA of virtually identical energies for the neutral and anion forms of bilirubin, but with slightly favorable predictions for anion forms of phycocyanobilin. Computational prediction of phycocyanobilin pK(a) values suggested a monoanion form to be the most stable form at physiological conditions. The computationally predicted binding sites for phycocyanobilin were identical to the two previously identified binding sites for bilirubin (subdomains IB and IIA). Results obtained by protein and pigment fluorescence measurements, circular dichroism, and competition experiments confirmed high affinity (binding constant of 2.2 x 10(6) M-1 at 25 degrees C), stereo-selective binding of phycocyanobilin M-conformer to HSA and its competition with bilirubin, warfarin and hemin. Our experimental data confirm that phycocyanobilin binds to IB and IIA binding site of HSA with an affinity similar to bilirubin. In conditions characterized by an increased bilirubin plasma concentration, or intake of drugs binding to IB or IIA binding site, pharmacokinetics of phycocyanobilin may also be changed.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Phycocyanobilin, a bioactive tetrapyrrolic compound of blue-green alga Spirulina, binds with high affinity and competes with bilirubin for binding on human serum albumin",
volume = "5",
number = "76",
pages = "61787-61798",
doi = "10.1039/c5ra05534b"
}

Minić, S., Milčić, M., Stanić-Vučinić, D., Radibratović, M., Sotiroudis, T. G., Nikolić, M.,& Ćirković Veličković, T.. (2015). Phycocyanobilin, a bioactive tetrapyrrolic compound of blue-green alga Spirulina, binds with high affinity and competes with bilirubin for binding on human serum albumin. in RSC Advances
Royal Soc Chemistry, Cambridge., 5(76), 61787-61798.
https://doi.org/10.1039/c5ra05534b

Minić S, Milčić M, Stanić-Vučinić D, Radibratović M, Sotiroudis TG, Nikolić M, Ćirković Veličković T. Phycocyanobilin, a bioactive tetrapyrrolic compound of blue-green alga Spirulina, binds with high affinity and competes with bilirubin for binding on human serum albumin. in RSC Advances. 2015;5(76):61787-61798.
doi:10.1039/c5ra05534b .

Minić, Simeon, Milčić, Miloš, Stanić-Vučinić, Dragana, Radibratović, Milica, Sotiroudis, Theodore G., Nikolić, Milan, Ćirković Veličković, Tanja, "Phycocyanobilin, a bioactive tetrapyrrolic compound of blue-green alga Spirulina, binds with high affinity and competes with bilirubin for binding on human serum albumin" in RSC Advances, 5, no. 76 (2015):61787-61798,
https://doi.org/10.1039/c5ra05534b . .

TY  - JOUR
AU  - Novkovic, L
AU  - Trmcic, M
AU  - Rodić, Marko V.
AU  - Bihelović, Filip
AU  - Zlatar, Matija
AU  - Matović, Radomir
AU  - Saičić, Radomir N.
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1796
AB  - Domino reactions of ketones with molecular oxygen in the presence of potassium hydroxide and potassium t-butoxide afford cyclic hydroperoxy acetals (3,5-dihydroxy-1,2-dioxanes). Mixed endoperoxides can also be obtained in a three-component reaction of two ketones and oxygen.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Synthesis of endoperoxides by domino reactions of ketones and molecular oxygen
VL  - 5
IS  - 120
SP  - 99577
EP  - 99584
DO  - 10.1039/c5ra13476e
ER  - 

@article{
author = "Novkovic, L and Trmcic, M and Rodić, Marko V. and Bihelović, Filip and Zlatar, Matija and Matović, Radomir and Saičić, Radomir N.",
year = "2015",
abstract = "Domino reactions of ketones with molecular oxygen in the presence of potassium hydroxide and potassium t-butoxide afford cyclic hydroperoxy acetals (3,5-dihydroxy-1,2-dioxanes). Mixed endoperoxides can also be obtained in a three-component reaction of two ketones and oxygen.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Synthesis of endoperoxides by domino reactions of ketones and molecular oxygen",
volume = "5",
number = "120",
pages = "99577-99584",
doi = "10.1039/c5ra13476e"
}

Novkovic, L., Trmcic, M., Rodić, M. V., Bihelović, F., Zlatar, M., Matović, R.,& Saičić, R. N.. (2015). Synthesis of endoperoxides by domino reactions of ketones and molecular oxygen. in RSC Advances
Royal Soc Chemistry, Cambridge., 5(120), 99577-99584.
https://doi.org/10.1039/c5ra13476e

Novkovic L, Trmcic M, Rodić MV, Bihelović F, Zlatar M, Matović R, Saičić RN. Synthesis of endoperoxides by domino reactions of ketones and molecular oxygen. in RSC Advances. 2015;5(120):99577-99584.
doi:10.1039/c5ra13476e .

Novkovic, L, Trmcic, M, Rodić, Marko V., Bihelović, Filip, Zlatar, Matija, Matović, Radomir, Saičić, Radomir N., "Synthesis of endoperoxides by domino reactions of ketones and molecular oxygen" in RSC Advances, 5, no. 120 (2015):99577-99584,
https://doi.org/10.1039/c5ra13476e . .

TY  - JOUR
AU  - Nikolić, Stefan
AU  - Opsenica, Dejan
AU  - Filipović, Vuk
AU  - Dojčinović, Biljana
AU  - Arandelovic, Sandra
AU  - Radulovic, Singa
AU  - Grgurić-Šipka, Sanja
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1618
AB  - Two p-cymenerutheniumchlorido complexes with thiourea derivative of 7-chloroquinoline (C1) and pyridine-3-imidazole (C2) were synthesized starting from [(eta(6)-p-cymene)RuCl2](2) and corresponding ligands. The structures of complexes were determined with elemental analysis and IR, ESIMS, H-1 and C-13{H-1} NMR, and 2D H-1-N-15 correlation NMR spectroscopy. Cytotoxic activities examined by the MTT assay were performed in five human neoplastic cell lines (HeLa, K562, A549, MDA-MB-231, EA.hy926) and one nontumor human fetal lung fibroblast cell line (MRC-5). Tested complexes exhibited low micromolar activities with IC50 in the range 11.03-56.45 mu M, while ligands L1 and L2 were significantly less active. Complex C1 showed cytoselective activity toward the K562 cell line (IC50 = 11.03 +/- 1.39 mu M) and was 3 times less active against the nontumor MRC-5 cell line. Flow cytometry analysis indicated that complexes C1 and C2 after 24 h treatment caused a concentration-dependent increase of the apoptotic sub-G1 fraction (up to 18.4%), comparable to cis-diamminedichloridoplatinum(II) (cisplatin, CDDP), although without other substantial alterations of the cell cycle. A drug-accumulation and DNA-binding study performed by ICP-MS in the K562 cell line revealed that complex C1 had a high intracellular uptake (1.38 mu g Ru/10 (6) cells), which significantly exceeded the intracellular uptake levels of CDDP (0.29 mu g Pt/10 (6) cells) and C2 (0.08 mu g Ru/10 (6) cells). However, both ruthenium complexes C1 and C2 bind to cellular DNA less efficiently in comparison to CDDP. The structure-activity relationship clearly suggested that introduction of a 7-chloroquinoline moiety in the ruthenium(II)-p-cymene complex significantly contributed to the intracellular uptake of C1 and higher cytotoxicity and cytoselectivity.
PB  - American Chemical Society (ACS)
T2  - Organometallics
T1  - Strong in Vitro Cytotoxic Potential of New Ruthenium-Cymene Complexes
VL  - 34
IS  - 14
SP  - 3464
EP  - 3473
DO  - 10.1021/acs.organomet.5b00041
ER  - 

@article{
author = "Nikolić, Stefan and Opsenica, Dejan and Filipović, Vuk and Dojčinović, Biljana and Arandelovic, Sandra and Radulovic, Singa and Grgurić-Šipka, Sanja",
year = "2015",
abstract = "Two p-cymenerutheniumchlorido complexes with thiourea derivative of 7-chloroquinoline (C1) and pyridine-3-imidazole (C2) were synthesized starting from [(eta(6)-p-cymene)RuCl2](2) and corresponding ligands. The structures of complexes were determined with elemental analysis and IR, ESIMS, H-1 and C-13{H-1} NMR, and 2D H-1-N-15 correlation NMR spectroscopy. Cytotoxic activities examined by the MTT assay were performed in five human neoplastic cell lines (HeLa, K562, A549, MDA-MB-231, EA.hy926) and one nontumor human fetal lung fibroblast cell line (MRC-5). Tested complexes exhibited low micromolar activities with IC50 in the range 11.03-56.45 mu M, while ligands L1 and L2 were significantly less active. Complex C1 showed cytoselective activity toward the K562 cell line (IC50 = 11.03 +/- 1.39 mu M) and was 3 times less active against the nontumor MRC-5 cell line. Flow cytometry analysis indicated that complexes C1 and C2 after 24 h treatment caused a concentration-dependent increase of the apoptotic sub-G1 fraction (up to 18.4%), comparable to cis-diamminedichloridoplatinum(II) (cisplatin, CDDP), although without other substantial alterations of the cell cycle. A drug-accumulation and DNA-binding study performed by ICP-MS in the K562 cell line revealed that complex C1 had a high intracellular uptake (1.38 mu g Ru/10 (6) cells), which significantly exceeded the intracellular uptake levels of CDDP (0.29 mu g Pt/10 (6) cells) and C2 (0.08 mu g Ru/10 (6) cells). However, both ruthenium complexes C1 and C2 bind to cellular DNA less efficiently in comparison to CDDP. The structure-activity relationship clearly suggested that introduction of a 7-chloroquinoline moiety in the ruthenium(II)-p-cymene complex significantly contributed to the intracellular uptake of C1 and higher cytotoxicity and cytoselectivity.",
publisher = "American Chemical Society (ACS)",
journal = "Organometallics",
title = "Strong in Vitro Cytotoxic Potential of New Ruthenium-Cymene Complexes",
volume = "34",
number = "14",
pages = "3464-3473",
doi = "10.1021/acs.organomet.5b00041"
}

Nikolić, S., Opsenica, D., Filipović, V., Dojčinović, B., Arandelovic, S., Radulovic, S.,& Grgurić-Šipka, S.. (2015). Strong in Vitro Cytotoxic Potential of New Ruthenium-Cymene Complexes. in Organometallics
American Chemical Society (ACS)., 34(14), 3464-3473.
https://doi.org/10.1021/acs.organomet.5b00041

Nikolić S, Opsenica D, Filipović V, Dojčinović B, Arandelovic S, Radulovic S, Grgurić-Šipka S. Strong in Vitro Cytotoxic Potential of New Ruthenium-Cymene Complexes. in Organometallics. 2015;34(14):3464-3473.
doi:10.1021/acs.organomet.5b00041 .

Nikolić, Stefan, Opsenica, Dejan, Filipović, Vuk, Dojčinović, Biljana, Arandelovic, Sandra, Radulovic, Singa, Grgurić-Šipka, Sanja, "Strong in Vitro Cytotoxic Potential of New Ruthenium-Cymene Complexes" in Organometallics, 34, no. 14 (2015):3464-3473,
https://doi.org/10.1021/acs.organomet.5b00041 . .

TY  - JOUR
AU  - Mrkić, Ivan
AU  - Abughren, Mohamed
AU  - Nikolić, Jasna
AU  - Anđelković, Uroš
AU  - Vassilopoulou, Emilia
AU  - Sinaniotis, Athanassios
AU  - Petersen, Arnd
AU  - Papadopoulos, Nikolaos G.
AU  - Gavrović-Jankulović, Marija
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1579
AB  - Allergy to banana fruit appears to have become an important cause of fruit allergy in Europe. Among five allergens that have been found, beta-1,3-glucanase denoted as Mus a 5 was identified as a candidate allergen for the component-resolved allergy diagnosis of banana allergy. Because of the variations in protein levels in banana fruit, in this study Mus a 5 was produced as a fusion protein with glutathione-S-transferase in Escherichia coli. The recombinant Mus a 5 was purified under native conditions by a combination of affinity, ion-exchange, and reversed phase chromatography. N-terminal sequence was confirmed by Edman degradation and 55 % of the primary structure was identified by mass fingerprint, while the secondary structure was assessed by circular dichroism spectroscopy. IgG reactivity of recombinant protein was shown in 2-D immunoblot with anti-Mus a 5 antibodies, while IgG and IgE binding to natural Mus a 5 was inhibited with the recombinant Mus a 5 in immunoblot inhibition test. IgE reactivity of recombinant Mus a 5 was shown in ELISA within a group of ten persons sensitized to banana fruit. Recombinant Mus a 5 is a novel reagent suitable for the component-resolved allergy diagnosis of banana allergy.
PB  - Humana Press Inc, Totowa
T2  - Molecular Biotechnology
T1  - Molecular Characterization of Recombinant Mus a 5 Allergen from Banana Fruit
VL  - 56
IS  - 6
SP  - 498
EP  - 506
DO  - 10.1007/s12033-013-9719-8
ER  - 

@article{
author = "Mrkić, Ivan and Abughren, Mohamed and Nikolić, Jasna and Anđelković, Uroš and Vassilopoulou, Emilia and Sinaniotis, Athanassios and Petersen, Arnd and Papadopoulos, Nikolaos G. and Gavrović-Jankulović, Marija",
year = "2014",
abstract = "Allergy to banana fruit appears to have become an important cause of fruit allergy in Europe. Among five allergens that have been found, beta-1,3-glucanase denoted as Mus a 5 was identified as a candidate allergen for the component-resolved allergy diagnosis of banana allergy. Because of the variations in protein levels in banana fruit, in this study Mus a 5 was produced as a fusion protein with glutathione-S-transferase in Escherichia coli. The recombinant Mus a 5 was purified under native conditions by a combination of affinity, ion-exchange, and reversed phase chromatography. N-terminal sequence was confirmed by Edman degradation and 55 % of the primary structure was identified by mass fingerprint, while the secondary structure was assessed by circular dichroism spectroscopy. IgG reactivity of recombinant protein was shown in 2-D immunoblot with anti-Mus a 5 antibodies, while IgG and IgE binding to natural Mus a 5 was inhibited with the recombinant Mus a 5 in immunoblot inhibition test. IgE reactivity of recombinant Mus a 5 was shown in ELISA within a group of ten persons sensitized to banana fruit. Recombinant Mus a 5 is a novel reagent suitable for the component-resolved allergy diagnosis of banana allergy.",
publisher = "Humana Press Inc, Totowa",
journal = "Molecular Biotechnology",
title = "Molecular Characterization of Recombinant Mus a 5 Allergen from Banana Fruit",
volume = "56",
number = "6",
pages = "498-506",
doi = "10.1007/s12033-013-9719-8"
}

Mrkić, I., Abughren, M., Nikolić, J., Anđelković, U., Vassilopoulou, E., Sinaniotis, A., Petersen, A., Papadopoulos, N. G.,& Gavrović-Jankulović, M.. (2014). Molecular Characterization of Recombinant Mus a 5 Allergen from Banana Fruit. in Molecular Biotechnology
Humana Press Inc, Totowa., 56(6), 498-506.
https://doi.org/10.1007/s12033-013-9719-8

Mrkić I, Abughren M, Nikolić J, Anđelković U, Vassilopoulou E, Sinaniotis A, Petersen A, Papadopoulos NG, Gavrović-Jankulović M. Molecular Characterization of Recombinant Mus a 5 Allergen from Banana Fruit. in Molecular Biotechnology. 2014;56(6):498-506.
doi:10.1007/s12033-013-9719-8 .

Mrkić, Ivan, Abughren, Mohamed, Nikolić, Jasna, Anđelković, Uroš, Vassilopoulou, Emilia, Sinaniotis, Athanassios, Petersen, Arnd, Papadopoulos, Nikolaos G., Gavrović-Jankulović, Marija, "Molecular Characterization of Recombinant Mus a 5 Allergen from Banana Fruit" in Molecular Biotechnology, 56, no. 6 (2014):498-506,
https://doi.org/10.1007/s12033-013-9719-8 . .