Effects ofβ-elemene on proliferation and apoptosis of SGC7901 gastric cancer cells in vitro and the underlying mechanisms
- VernacularTitle:β-榄香烯对SGC7901胃癌细胞增殖和凋亡的影响
- Author:
Junsong LIU
1
;
Xianglong LIU
;
Guanglin QIU
;
Zhengliang ZHANG
;
Lin FAN
;
Wei ZHAO
;
Shicai HE
;
Shuai CHANG
;
Xiangming CHE
Author Information
1. 西安交通大学医学院第一附属医院普通外科
- Keywords:
β-Elemene;
gastric cancer;
proliferation;
apoptosis;
p21-activated protein kinase 1;
extracellular signal-regulated kinases
- From:
Journal of Southern Medical University
2015;(9):1234-1238
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects ofβ-elemene in suppressing the proliferation and apoptosis of SGC7901 gastric cancer cells in vitro and explore the underlying mechanisms. Methods Using MTT assay, flow cytometry, and clonogenic survival assay, we assessed the effects ofβ-elemene on the viability, apoptosis, cell cycle distribution, and clonogenic survival of gastric cancer SGC7901 cells and gastric mucosal epithelial GES-1 cells. Western blotting was employed to determine the changes in the protein expression profiles in SGC7901 cells in response toβ-elemene treatment. Resultsβ-elemene significantly suppressed the cell viability and increased the apoptosis of SGC7901 cells, and these effects were less obvious in GES-1 cells.β-elemene decreased clonogenic survival of SGC7901 cells, increased the proportion of G2/M phase cells, decreased the expression of Bcl-2, and increased the expression of Bax and cleaved caspase-3. β-elemene did not obviously affect the expression of total p21-activated protein kinase 1 (Pak1) but decreased the level of phospho-Pak1 (Thr423) and phospho-ERK1/2 (Thr202/Tyr204) in SGC7901 cells. Conclusion β-elemene inhibits the proliferation and induces apoptosis of gastric cancer cells possibly by inhibiting Pak1/ERK signaling and regulating apoptosis-associated proteins such as Bcl-2 and Bax.
