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- W16098344 abstract "To research different effects of human breast carcinoma cells with different estrogen receptor expressing by antidiabetic drug metformin, and preliminary explore the possible underlying molecular mechanisms.Cells were treated with metformin. Growth inhibition rates of the cells were measured by MTT assay. Cell cycle and apoptosis were detected by flow cytometery (FCM). Expressions of HIF-1α mRNA in the cells were measured by RT-PCR.After drug intervention, the cell proliferation were inhibited by metformin, and reinforced with the concentration and reaction time increase (P<0.05). The growth inhibition rates of MCF-7(ER(+);) breast carcinoma cell were higher than MDA-MB-231(ER(-);) breast carcinoma cell at each concentration group (P<0.05). The results of FCM prompted: MCF-7(ER(+);) breast carcinoma cell was arrested in G1 phase by metformin significantly in a dose-dependent increase(P<0.05). While for MDA-MB-231(ER(-);) breast carcinoma cell, only the 20 and 40 mmol/L groups had significant difference compared with the control group(P<0.05); and the percentage of G1 phase arresting were lower than MCF-7(ER(+);) breast carcinoma cell at the same concentration group(P<0.05). The effect of apoptosis for these two kinds of cells via metformin were not obvious(P<0.05). The expressions of HIF-1α mRNA detected by RT-PCR prompted: the expressions of HIF-1α mRNA for these two breast carcinoma cells were in a dose-dependent decrease(P<0.05).The effect of metformin for human breast carcinoma cell with estrogen receptor was better than the one without estrogen receptor. Maybe the molecular mechanism had a relationship with HIF-1α up-regulating." @default.
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- W16098344 date "2011-03-01" @default.
- W16098344 modified "2023-09-22" @default.
- W16098344 title "[Effects of antidiabetic drug metformin on human breast carcinoma cells with different estrogen receptor expressing in vitro]." @default.
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