Abstract
Objective: To investigate the effect of piperine on human breast cancer cells.Methods: The effect of piperine on proliferation and migration of human breast cancer cells, MCF-7 and MDA-MB-231, was investigated using colony formation assays, wound healing assays, Matrigel migration assays, flow cytometry, RT-qPCR, and Western blotting assays.Results: Piperine inhibited the growth of MCF-7 and MDA-MB-231 cells and suppressed colony formation. Cell reduction at the G0/ G1 phase and cell arrest at the G2/M phase were observed in breast cancer cells. However, the significant effect was only demonstrated in MDA-MB-231 cells. Moreover, cancer cell migration was suppressed by piperine at low concentration. RT-qPCR and Western blotting assays showed that piperine downregulated Rac1 gene and protein expression.Conclusions: Piperine could inhibit growth and migration of breast cancer cells by reducing Rac1 gene and protein expression.
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