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Article in Chinese | WPRIM | ID: wpr-812033

ABSTRACT

@# Objective: To investigate the expression of Formin-2(FMN2)protein in gastric cancer tissues and its correlation to clinicopathological features of gastric cancer patients, as well to explore its effect on the proliferation of gastric adenocarcinoma AGS cells. Methods: 84 cases of gastric adenocarcinoma tissues and corresponding para-cancerous tissues were surgically collected from patients treated in the First Affiliated Hospital of Air Force Military Medical University from September 2015 to September 2017. The expression of FMN2 in gastric adenocarcinoma tissues was detected by immunohistochemical staining and analyzed with RNA-Seq data-sets GEPIA. The relationship between FMN2 protein expression in gastric adenocarcinoma tissues and its clinicopathological features was also explored. MTT assay was used to detect the effect of FMN2 onAGS cell proliferation activity, and Western blotting was used to detect the effect of FMN2 on the expression of apoptosis-related protein caspase-3 in AGS cells. Results: The expression level of FMN2 in gastric adenocarcinoma tissues was significantly lower than that in matched adjacent tissues and the expression level of FMN2 was closely related to the TNM stage and differentiation of gastric adenocarcinoma (all P<0.05). Compared toAGS control group, the proliferation activity of AGS/FMN2 was significantly decreased and the expression of apoptosis-related gene Caspase-3 was markedly increased (all P<0.05). Conclusion: The expression of FMN2 was significantly decreased in gastric adenocarcinoma tissues and its low expression is closely related to the degree of tumor differentiation and clinical TNM stage. Moreover, FMN2 over-expression significantly decreased the proliferation of AGS cells. FMN2 may function as independent risk factor for the prognosis of gastric adenocarcinoma, which may provide new ideas for the treatment of gastric adenocarcinoma.

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