小檗胺联合拉帕替尼对三阴性乳腺癌细胞增殖和凋亡的影响

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Abstract Objective To investigate the effects of Berberine combined with Lapatinib on proliferation and apoptosis of MDA-MB-231 triple negative breast cancer cells. Methods MTT assay was used to detect the proliferation inhibition of single application for Berberine, Lapatinib and drug combination at different concentrations in MDA-MB-231 triple negative breast cancer cells. CompuSyn software was used to analyze the combined index CI of different dose groups and determine the best combined scheme. The cells were randomly divided into 4 groups: the blank control group, the Berberine group, the Lapatinib group and the drug combination group, and the optimal combination dose selected was used for drug intervention respectively. Flow cytometry was used to detect apoptosis in each group. Results Compared with the single drug, the combination of Berberine and Lapatinib inhibited the proliferation of MDA-MB-231 cells more significantly, and the difference was statistically significant (P ＜ 0.05). CompuSyn software analysis results showed that the CI value of each combined dose was ＜ 1, indicating that the two drugs had synergistic inhibitory effect. The dose group with the lowest CI value was selected for subsequent experiments. Compared with the the blank control group, the total apoptosis rate of the Berberine group and the Lapatinib group increased, and the differences were statistically significant (P ＜ 0.05 or P ＜ 0.01). Compared with the Berberine group and the Lapatinib group, the total apoptosis rate of the combined treatment group was increased, and the differences were statistically significant (P ＜ 0.05). Conclusion Berberine combined with Lapatinib can enhance the ability of the proliferation inhibition and induce apoptosis of MDA-MB-231 triple negative breast cancer cells.

Key words： Berberine Lapatinib Triple negative breast cancer Proliferation Apoptosis

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	ZHU Jiyang1 CHEN Hua1 XU Yanfang1 SHAO Jinhui2

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ZHU Jiyang1 CHEN Hua1 XU Yanfang1 SHAO Jinhui2. Effects of Berberine combined with Lapatinib on proliferation and apoptosis of triple negative breast cancer cells[J]. 中国医药导报, 2020, 17(20): 123-126.

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http://www.yiyaodaobao.com.cn/EN/ OR http://www.yiyaodaobao.com.cn/EN/Y2020/V17/I20/123

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