POTEINTATION OF VINCRISTINE-INDUCED APOPTOSIS BY TETRANDRINE, NEFERINE AND DAURICINE IN THE HUMAN MAMMARY MCF-7 MULTIDRUG-RESISTANT CELLS
- VernacularTitle:粉防己碱、甲基莲心碱和蝙蝠葛碱增强长春新碱诱导人乳腺癌MCF-7多药耐药细胞凋亡
- Author:
Zuguang YE
;
Jinhua WANG
;
Aixu SUN
;
Aihua LIANG
;
Baoyun XUE
;
Chunying LI
;
Lan WANG
- Publication Type:Journal Article
- From:
Acta Pharmaceutica Sinica
2001;36(2):96-99
- CountryChina
- Language:Chinese
-
Abstract:
AIM To investigate the poteintation of vincristine-induecd apoptosis by tetrandrine, neferine and dauricine isolated from Chinese medicinal plants in the human mammary MCF-7 multidrug resistant cells. METHODS The apoptotic cells were detected by fluorescent staining of a combination of Hoechst 33342 and propidium iodide (PI), flow cytometry and agarose electrophoresis. RESULTS The apoptotic cells induced by vincristine alone accounted for about 10% of all the cancer cells, while the percentage of apoptotic cells induced by a combination of vincristine with tetrandrine, neferine, or dauricine was found to be significantly higher than that by vincristine alone, and their reversal effects were positively correlated with the drug concentration and the exposure time. In addition, tetrandrine was shown to be the most potent in the reversal efficacy among the three compounds to be tested for apoptosis in vitro. CONCLUSION Tetrandrine, neferine and dauricine showed obvious potenitiation of vincristine-induced apoptosis in the human mammary MCF-7 multidrug-resistant cells.
