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In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii

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2013
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Authors
Matić, Ivana Z.
Aljančić, Ivana
Žižak, Željko
Vajs, Vlatka
Jadranin, Milka
Milosavljević, Slobodan
Juranić, Zorica
Article (Published version)
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Abstract
Background: The aim of this research was to determine the intensity and mechanisms of the cytotoxic actions of five extracts isolated from the endemic plant species Helichrysum zivojinii Cernjavski & Soska (family Asteraceae) against specific cancer cell lines. In order to evaluate the sensitivity of normal immunocompetent cells implicated in the antitumor immune response, the cytotoxicity of extracts was also tested against healthy peripheral blood mononuclear cells (PBMC). Methods: The aerial parts of the plants were air-dried, powdered, and successively extracted with solvents of increasing polarity to obtain hexane, dichloromethane, ethyl-acetate, n-butanol and methanol extracts. The cytotoxic activities of the extracts against human cervix adenocarcinoma HeLa, human melanoma Fem-x, human myelogenous leukemia K562, human breast adenocarcinoma MDA-MB-361 cells and PBMC were evaluated by the MTT test. The mode of HeLa cell death was investigated by morphological analysis. Changes in ...the cell cycle of HeLa cells treated with the extracts were analyzed by flow cytometry. The apoptotic mechanisms induced by the tested extracts were determined using specific caspase inhibitors. Results: The investigated Helichrysum zivojinii extracts exerted selective dose-dependent cytotoxic actions against selected cancer cell lines and healthy immunocompetent PBMC stimulated to proliferate, while the cytotoxic actions exerted on unstimulated PBMC were less pronounced. The tested extracts exhibited considerably stronger cytotoxic activities towards HeLa, Fem-x and K562 cells in comparison to resting and stimulated PBMC. It is worth noting that the cytotoxicity of the extracts was weaker against unstimulated PBMC in comparison to stimulated PBMC. Furthermore, each of the five extracts induced apoptosis in HeLa cells, through the activation of both intrinsic and extrinsic signaling pathways. Conclusion: Extracts obtained from the endemic plant Helichrysum zivojinii may represent an important source of novel potential antitumor agents due to their pronounced and selective cytotoxic actions towards malignant cells.

Keywords:
Helichrysum zivojinii / cytotoxicity / Cancer cells / Peripheral blood mononuclear cells / Apoptosis
Source:
Bmc Complementary and Alternative Medicine, 2013, 13
Publisher:
  • Biomed Central Ltd, London
Funding / projects:
  • Biological response modifiers in physiological and pathological conditions (RS-175011)
  • Natural products of wild, cultivated and edible plants: structure and bioactivity determination (RS-172053)

DOI: 10.1186/1472-6882-13-36

ISSN: 1472-6882

PubMed: 23414290

WoS: 000315655500001

Scopus: 2-s2.0-84873939417
[ Google Scholar ]
31
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URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1289
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Matić, Ivana Z.
AU  - Aljančić, Ivana
AU  - Žižak, Željko
AU  - Vajs, Vlatka
AU  - Jadranin, Milka
AU  - Milosavljević, Slobodan
AU  - Juranić, Zorica
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1289
AB  - Background: The aim of this research was to determine the intensity and mechanisms of the cytotoxic actions of five extracts isolated from the endemic plant species Helichrysum zivojinii Cernjavski & Soska (family Asteraceae) against specific cancer cell lines. In order to evaluate the sensitivity of normal immunocompetent cells implicated in the antitumor immune response, the cytotoxicity of extracts was also tested against healthy peripheral blood mononuclear cells (PBMC). Methods: The aerial parts of the plants were air-dried, powdered, and successively extracted with solvents of increasing polarity to obtain hexane, dichloromethane, ethyl-acetate, n-butanol and methanol extracts. The cytotoxic activities of the extracts against human cervix adenocarcinoma HeLa, human melanoma Fem-x, human myelogenous leukemia K562, human breast adenocarcinoma MDA-MB-361 cells and PBMC were evaluated by the MTT test. The mode of HeLa cell death was investigated by morphological analysis. Changes in the cell cycle of HeLa cells treated with the extracts were analyzed by flow cytometry. The apoptotic mechanisms induced by the tested extracts were determined using specific caspase inhibitors. Results: The investigated Helichrysum zivojinii extracts exerted selective dose-dependent cytotoxic actions against selected cancer cell lines and healthy immunocompetent PBMC stimulated to proliferate, while the cytotoxic actions exerted on unstimulated PBMC were less pronounced. The tested extracts exhibited considerably stronger cytotoxic activities towards HeLa, Fem-x and K562 cells in comparison to resting and stimulated PBMC. It is worth noting that the cytotoxicity of the extracts was weaker against unstimulated PBMC in comparison to stimulated PBMC. Furthermore, each of the five extracts induced apoptosis in HeLa cells, through the activation of both intrinsic and extrinsic signaling pathways. Conclusion: Extracts obtained from the endemic plant Helichrysum zivojinii may represent an important source of novel potential antitumor agents due to their pronounced and selective cytotoxic actions towards malignant cells.
PB  - Biomed Central Ltd, London
T2  - Bmc Complementary and Alternative Medicine
T1  - In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii
VL  - 13
DO  - 10.1186/1472-6882-13-36
ER  - 
@article{
author = "Matić, Ivana Z. and Aljančić, Ivana and Žižak, Željko and Vajs, Vlatka and Jadranin, Milka and Milosavljević, Slobodan and Juranić, Zorica",
year = "2013",
abstract = "Background: The aim of this research was to determine the intensity and mechanisms of the cytotoxic actions of five extracts isolated from the endemic plant species Helichrysum zivojinii Cernjavski & Soska (family Asteraceae) against specific cancer cell lines. In order to evaluate the sensitivity of normal immunocompetent cells implicated in the antitumor immune response, the cytotoxicity of extracts was also tested against healthy peripheral blood mononuclear cells (PBMC). Methods: The aerial parts of the plants were air-dried, powdered, and successively extracted with solvents of increasing polarity to obtain hexane, dichloromethane, ethyl-acetate, n-butanol and methanol extracts. The cytotoxic activities of the extracts against human cervix adenocarcinoma HeLa, human melanoma Fem-x, human myelogenous leukemia K562, human breast adenocarcinoma MDA-MB-361 cells and PBMC were evaluated by the MTT test. The mode of HeLa cell death was investigated by morphological analysis. Changes in the cell cycle of HeLa cells treated with the extracts were analyzed by flow cytometry. The apoptotic mechanisms induced by the tested extracts were determined using specific caspase inhibitors. Results: The investigated Helichrysum zivojinii extracts exerted selective dose-dependent cytotoxic actions against selected cancer cell lines and healthy immunocompetent PBMC stimulated to proliferate, while the cytotoxic actions exerted on unstimulated PBMC were less pronounced. The tested extracts exhibited considerably stronger cytotoxic activities towards HeLa, Fem-x and K562 cells in comparison to resting and stimulated PBMC. It is worth noting that the cytotoxicity of the extracts was weaker against unstimulated PBMC in comparison to stimulated PBMC. Furthermore, each of the five extracts induced apoptosis in HeLa cells, through the activation of both intrinsic and extrinsic signaling pathways. Conclusion: Extracts obtained from the endemic plant Helichrysum zivojinii may represent an important source of novel potential antitumor agents due to their pronounced and selective cytotoxic actions towards malignant cells.",
publisher = "Biomed Central Ltd, London",
journal = "Bmc Complementary and Alternative Medicine",
title = "In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii",
volume = "13",
doi = "10.1186/1472-6882-13-36"
}
Matić, I. Z., Aljančić, I., Žižak, Ž., Vajs, V., Jadranin, M., Milosavljević, S.,& Juranić, Z.. (2013). In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii. in Bmc Complementary and Alternative Medicine
Biomed Central Ltd, London., 13.
https://doi.org/10.1186/1472-6882-13-36
Matić IZ, Aljančić I, Žižak Ž, Vajs V, Jadranin M, Milosavljević S, Juranić Z. In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii. in Bmc Complementary and Alternative Medicine. 2013;13.
doi:10.1186/1472-6882-13-36 .
Matić, Ivana Z., Aljančić, Ivana, Žižak, Željko, Vajs, Vlatka, Jadranin, Milka, Milosavljević, Slobodan, Juranić, Zorica, "In vitro antitumor actions of extracts from endemic plant Helichrysum zivojinii" in Bmc Complementary and Alternative Medicine, 13 (2013),
https://doi.org/10.1186/1472-6882-13-36 . .

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