Regulation of SAHA on cell proliferation induced by leptin in breast cancer cell line MCF-7
10.3969/j.issn.1001-1978.2016.04.013
- VernacularTitle:SAHA在Leptin诱导的乳腺癌MCF-7细胞增殖过程中的调控作用
- Author:
Xiuyan FENG
;
Han HAN
;
Weiqiang ZHOU
- Publication Type:Journal Article
- Keywords:
cell apoptosis;
breast cancer;
estrogen re-ceptor positive;
MCF-7;
SAHA;
leptin
- From:
Chinese Pharmacological Bulletin
2016;32(4):503-507,508
- CountryChina
- Language:Chinese
-
Abstract:
To clarify the molecular mechanism of SAHA in the cell proliferation of ER-positive breast cancer cell line MCF-7 induced by leptin. Methods Human breast cancer cell MCF-7 was incubated with SAHA and/or leptin, and cell viability, apoptosis and cell cy-cle of MCF-7 cells were detected by Muse Cell Analy-zer. The expression of proteins related with apoptosis was determined by apotosis antibody array. Results Real-time cell proliferation assays indicated that the in-duction effect of leptin for MCF-7 cells reached the peak at a concentration of 0. 625 nmol · L-1 . SAHA reduced the viability of MCF-7 cells, induced G0/G1 phase arrest in the cell cycle, and triggered the apopto-sis. Meanwhile, SAHA significantly induced the pro-tein expressions of some apoptotic factors, including Bax, Caspase-3, TRAIL DR5, p21CIP1, and inhibited the expressions of Claspin, Clusterin, x-linked inhibi-tor of apoptosis protein(XIAP) and survivin. Howev-er, leptin had reverse effects on the related expression of the proteins. Conclusion The effects of cell prolif-eration by leptin and SAHA treatment in breast cancer ER positive cell line MCF-7 may involve in the activa-tion of apoptosis pathway, in particular with releasing of Caspase-3 trigged by endogenous mitochondrial ap-optosis pathway.
