CHEN Mao-jian, YANG Wei-ping, QIN Qing-hong, et al. Effect of Capsaicin on Proliferation of Human Breast Cancer MCF-7 Cells and p21 and FBI-1 Expression[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(22): 102-106.
CHEN Mao-jian, YANG Wei-ping, QIN Qing-hong, et al. Effect of Capsaicin on Proliferation of Human Breast Cancer MCF-7 Cells and p21 and FBI-1 Expression[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(22): 102-106. DOI: 10.13422/j.cnki.syfjx.20181816.
Objective:To investigate the effect of capsaicin on proliferation of human breast cancer MCF-7 cells and its possible molecular mechanism. Method:Capsaicin groups with different concentrations and blank group were set up. The cell viability was detected by cell count kit-8 (CCK-8) assay after MCF-7 cells were treated with capsaicin (50
100
150
200
250
300 μmol·L-1) for 24
48
72 h. The cell colony formation ability was verified by colony formation assay after MCF-7 cells were treated with capsaicin(100
150
200 μmol·L-1) for 18 h and then incubated in complete medium for 14 days. The mRNA expression levels of cyclin-dependent kinase inhibitor p21 and factor that binds to the inducer of short transcripts of human immunodeficiency virus-1 (FBI-1) were measured by Real-time polymerase chain reaction (Real-time PCR) after MCF-7 cells were treated with capsaicin (100
150
200 μmol·L-1) for 24 h. The protein expression levels of p21 and FBI-1 were measured by Western blot after MCF-7 cells were treated with capsaicin (100
150
200 μmol·L-1) for 24 h. Result:As compared with the blank group
capsaicin (50
100
150
200
250
300 μmol·L-1) significantly inhibited the cell viability of MCF-7 cells (P<0.05
P<0.01) in dose and time dependent manners. Capsaicin (100
150
200 μmol·L-1) also markedly inhibited the cell colony formation ability (P<0.01). In addition
capsaicin (100
150
200 μmol·L-1) up-regulated the mRNA and protein expressions of p21 and down-regulated mRNA and protein expressions of FBI-1 (P<0.01). Conclusion:Capsaicin inhibits cell proliferation of MCF-7 cells
and the possible mechanism may be related to up-regulation of p21 and down-regulation of FBI-1 at both mRNA and protein levels.