Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes
Authorized Users Only
2014
Authors
Savic, Aleksandar
Filipovic, Lana
Arandelovic, Sandra
Dojčinović, Biljana

Radulovic, Sinisa
Sabo, Tibor

Grgurić-Šipka, Sanja

Article (Published version)

Metadata
Show full item recordAbstract
Novel Pt(II) complexes of general formula [PtI2(L1-3)], (C1-C3): where L1-3 are isobutyl, n-pentyl and isopentyl esters of (S,S)-1,3-propanediamine-N,N'-di-2-(3-cyclohexyl)propanoic acid has been synthesized and characterized by elemental analysis, UV/Vis, IR, (H-1, C-13 and HSQC, Pt) NMR spectroscopy and ESI mass spectrometry. Spectroscopic data and computational studies have shown the usual square planar coordination geometry of synthesized complexes, with coordination of ligands via nitrogen donor atoms. The cytotoxic activity of novel ligands and corresponding complexes were investigated on a palette of different cells line. Complexes C1-C3 exhibited activity comparable to cisplatin, with IC50 values (04) ranging from 4.6 +/- 0.6 to 17.2 +/- 2, and showed the highest potential in HeLa, LS-174 and EA.hy.926 cells. Ligands L1-L3 exhibited two- to four-times less activity than corresponding complexes. Analysis of the mode of action in HeLa cells, by ICP-MS study, showed markedly highe...r intracellular accumulation and DNA binding affinity of C1-C3 versus cisplatin, after 4 h and 20 h post-treatment. Annexin-V-FITC assay, flow cytometry and fluorescence microscopy study demonstrated occurrence of cell death through both apoptotic and necrotic changes. Tested complexes, at corresponding IC50 concentrations, caused considerable "sub-G1" peak, without other substantial alterations of cell cycle, while only Cl induced higher level of phosphatidylserine externalization (11.7%), comparing to ligand L1 (4.9%) and cisplatin (8.4%). Structure-activity comparison indicated variations of C1-C3 cytotoxicity, related to the drug/ligand lipophilicity (C log P value), while intracellular platinum content and DNA platination increased on increase of length and branching of ester chain, in sequence: Cl (isobutyl) LT C2 (n-pentyl) LT C3 (isopentyl).
Keywords:
Apoptosis / Cancer / Platinum complexes / Amine ligandsSource:
European Journal of Medicinal Chemistry, 2014, 82, 372-384Publisher:
- Elsevier France-Editions Scientifiques Medicales Elsevier, Paris
Funding / projects:
- Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
- Reinforcement of the Faculty of Chemistry, University of Belgrade, towards becoming a Center of Excellence in the region of WB for Molecular Biotechnology and Food research (EU-256716)
DOI: 10.1016/j.ejmech.2014.05.060
ISSN: 0223-5234
PubMed: 24927057
WoS: 000339039100035
Scopus: 2-s2.0-84902328846
Collections
Institution/Community
IHTMTY - JOUR AU - Savic, Aleksandar AU - Filipovic, Lana AU - Arandelovic, Sandra AU - Dojčinović, Biljana AU - Radulovic, Sinisa AU - Sabo, Tibor AU - Grgurić-Šipka, Sanja PY - 2014 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1593 AB - Novel Pt(II) complexes of general formula [PtI2(L1-3)], (C1-C3): where L1-3 are isobutyl, n-pentyl and isopentyl esters of (S,S)-1,3-propanediamine-N,N'-di-2-(3-cyclohexyl)propanoic acid has been synthesized and characterized by elemental analysis, UV/Vis, IR, (H-1, C-13 and HSQC, Pt) NMR spectroscopy and ESI mass spectrometry. Spectroscopic data and computational studies have shown the usual square planar coordination geometry of synthesized complexes, with coordination of ligands via nitrogen donor atoms. The cytotoxic activity of novel ligands and corresponding complexes were investigated on a palette of different cells line. Complexes C1-C3 exhibited activity comparable to cisplatin, with IC50 values (04) ranging from 4.6 +/- 0.6 to 17.2 +/- 2, and showed the highest potential in HeLa, LS-174 and EA.hy.926 cells. Ligands L1-L3 exhibited two- to four-times less activity than corresponding complexes. Analysis of the mode of action in HeLa cells, by ICP-MS study, showed markedly higher intracellular accumulation and DNA binding affinity of C1-C3 versus cisplatin, after 4 h and 20 h post-treatment. Annexin-V-FITC assay, flow cytometry and fluorescence microscopy study demonstrated occurrence of cell death through both apoptotic and necrotic changes. Tested complexes, at corresponding IC50 concentrations, caused considerable "sub-G1" peak, without other substantial alterations of cell cycle, while only Cl induced higher level of phosphatidylserine externalization (11.7%), comparing to ligand L1 (4.9%) and cisplatin (8.4%). Structure-activity comparison indicated variations of C1-C3 cytotoxicity, related to the drug/ligand lipophilicity (C log P value), while intracellular platinum content and DNA platination increased on increase of length and branching of ester chain, in sequence: Cl (isobutyl) LT C2 (n-pentyl) LT C3 (isopentyl). PB - Elsevier France-Editions Scientifiques Medicales Elsevier, Paris T2 - European Journal of Medicinal Chemistry T1 - Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes VL - 82 SP - 372 EP - 384 DO - 10.1016/j.ejmech.2014.05.060 ER -
@article{ author = "Savic, Aleksandar and Filipovic, Lana and Arandelovic, Sandra and Dojčinović, Biljana and Radulovic, Sinisa and Sabo, Tibor and Grgurić-Šipka, Sanja", year = "2014", abstract = "Novel Pt(II) complexes of general formula [PtI2(L1-3)], (C1-C3): where L1-3 are isobutyl, n-pentyl and isopentyl esters of (S,S)-1,3-propanediamine-N,N'-di-2-(3-cyclohexyl)propanoic acid has been synthesized and characterized by elemental analysis, UV/Vis, IR, (H-1, C-13 and HSQC, Pt) NMR spectroscopy and ESI mass spectrometry. Spectroscopic data and computational studies have shown the usual square planar coordination geometry of synthesized complexes, with coordination of ligands via nitrogen donor atoms. The cytotoxic activity of novel ligands and corresponding complexes were investigated on a palette of different cells line. Complexes C1-C3 exhibited activity comparable to cisplatin, with IC50 values (04) ranging from 4.6 +/- 0.6 to 17.2 +/- 2, and showed the highest potential in HeLa, LS-174 and EA.hy.926 cells. Ligands L1-L3 exhibited two- to four-times less activity than corresponding complexes. Analysis of the mode of action in HeLa cells, by ICP-MS study, showed markedly higher intracellular accumulation and DNA binding affinity of C1-C3 versus cisplatin, after 4 h and 20 h post-treatment. Annexin-V-FITC assay, flow cytometry and fluorescence microscopy study demonstrated occurrence of cell death through both apoptotic and necrotic changes. Tested complexes, at corresponding IC50 concentrations, caused considerable "sub-G1" peak, without other substantial alterations of cell cycle, while only Cl induced higher level of phosphatidylserine externalization (11.7%), comparing to ligand L1 (4.9%) and cisplatin (8.4%). Structure-activity comparison indicated variations of C1-C3 cytotoxicity, related to the drug/ligand lipophilicity (C log P value), while intracellular platinum content and DNA platination increased on increase of length and branching of ester chain, in sequence: Cl (isobutyl) LT C2 (n-pentyl) LT C3 (isopentyl).", publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Paris", journal = "European Journal of Medicinal Chemistry", title = "Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes", volume = "82", pages = "372-384", doi = "10.1016/j.ejmech.2014.05.060" }
Savic, A., Filipovic, L., Arandelovic, S., Dojčinović, B., Radulovic, S., Sabo, T.,& Grgurić-Šipka, S.. (2014). Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes. in European Journal of Medicinal Chemistry Elsevier France-Editions Scientifiques Medicales Elsevier, Paris., 82, 372-384. https://doi.org/10.1016/j.ejmech.2014.05.060
Savic A, Filipovic L, Arandelovic S, Dojčinović B, Radulovic S, Sabo T, Grgurić-Šipka S. Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes. in European Journal of Medicinal Chemistry. 2014;82:372-384. doi:10.1016/j.ejmech.2014.05.060 .
Savic, Aleksandar, Filipovic, Lana, Arandelovic, Sandra, Dojčinović, Biljana, Radulovic, Sinisa, Sabo, Tibor, Grgurić-Šipka, Sanja, "Synthesis, characterization and cytotoxic activity of novel platinum(II) iodido complexes" in European Journal of Medicinal Chemistry, 82 (2014):372-384, https://doi.org/10.1016/j.ejmech.2014.05.060 . .