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Anti-breast cancer effects and mechanisms of Xihuang pill on human breast cancer cell lines

Journal of Traditional Chinese Medicine 2013年第6期33卷 770-778页

作者： Guofeng Pan Wandan Wang Lan Wang Fangbo Zhang Xiaojie Yin Jianlu Wang Rixin Liang Department of Traditional Chinese Medicine Beijing Shijitan Hospital Affiliated to Capital Medical University School of Traditional Chinese Medicine Capital Medical University Pharmacology and Pharmacokinetics Laboratory Institute of Chinese Material Medical China Academy of Chinese Medical Sciences

OBJECTIVE： To investigate the anti-breast cancer （BC） effects and mechanisms of action of Xihuang pill （XHP） by conducting in vitro experiments on hu- man BC cell lines. METHODS： Two human BC cell lines （MCF-7 and MDA- MB231） were cultured and treated with XHP. Cell viability was detected using the 3-（4, 5-Dimeth- ylthiazol-2-yl）-2, 5-diphenyltetrazolium bromide （MTT） assay. Flow cytometry was used to measure the cell cycle and apoptosis. The cell cycle was ana- lyzed with propidium iodide staining. apoptosis was evaluated using the Annexin V-fluorescein iso- thiocyanate/propidium iodide method. Western blotting was used to analyze the expression of es- trogen receptor （ER）-α and ***： XHP had growth-inhibitory effects on MCF-7 and MDA-MB231 cells with a half-maximal inhibitory concentration （IC50） of 10.14 mg/mL （MCF-7） and 8.98 mg/mL （MDA-MB231）. apoptosis was induced to some extent. Certain changes in the ER were caused. Upregulation of ER-a protein was found in MCF-7 cells. ER-β expression in MDA-MB231 cells was increased. Cell-cycle arrest was not observed in the two BC cell lines. ER-β ex- pression in MCF-7 cells was unchanged. No ER-a ex- pression was shown in MDA-MB231 cells. CONCLUSION： These data suggest that XHP can af- fect cell viability and cause apoptosis, but that the cell cycle is not blocked. XHP has a certain impact on ER expression, but its mechanisms of action of anti-13C effects may not be due to regulation of ER expression.

关键词： Breast neoplasms inhibitor of apopto-sis proteins Cell cycle apoptosis Estrogen recep-tor alpha Xihuang pill

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