Abstract
BackgroundGlutaminase 2 (GLS2) has been described as a tumor suppressor in hepatocellular carcinoma (HCC) and colon cancer. This study aimed to investigate the expression of GLS2 and its biological role in gastric cancer.MethodsThe expression of GLS2 was determined by quantitative Real-time PCR (qRT-PCR). Proliferation assay was performed by Cell Counting Kit-8 assay. Cell apoptosis assay was performed by Annexin V-fluorescein isothiocyanate (FITC) Apoptosis Detection Kit. Migration capability analysis was performed by Transwell chamber assay. The protein GLS2 and caspase 3 was determined by western blotting.ResultsHere, we demonstrated that GLS2 displayed a significant downregulation in gastric cancer tissues compared to adjacent non-cancer tissues, which suggested that the downregulation of GLS2 might possibly be associated with the development and progression of gastric cancer. We also found that GLS2 overexpression could significantly suppress gastric cancer cell proliferation and migration and enhance gastric cancer cell apoptosis via upregulating the expression of caspase 3.ConclusionsThese data taken together show that GLS2 functions as a tumor suppressor gene in gastric cancer. This study not only enriches the molecular mechanism of gastric cancer but also supplies a scientific basis for targeted treatment of gastric cancer.
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