Relationship between FHIT and Bcl-2 protein expression and Helicobacter pylori infection in gastric carcinoma
ZHAO Kaifeng1 LIU Huiying2 JIANG Daoliang1 MIAO Ye2 ZHANG Jing1
1.Department of Digestive, the 464th Hospital of the PLA, Tianjin 300381, China;
2.Department of Pathology, the 464th Hospital of the PLA, Tianjin 300381, China
Abstract:Objective To investigate the relationship between fragile histidine triad (FHIT) and Bcl-2 protein expression in gastric cancer tissues and helicobacter pylori (Hp) infection. Methods From January 2013 to January 2017, 80 gastric carcinoma tissue samples were collected after radical gastrectomy in the 464th Hospital of PLA, and 43 paracancerous tissues were selected. Rapid urease assay paper and Warthin-Starry staining were used to detect whether the tissue samples were infected with Hp, and the expressions of FHIT and Bcl-2 in the tissue samples were detected by immunohistochemical staining. Results FHIT positive expression rate in gastric carcinoma tissues was lower than that in para-carcinoma tissues (P < 0.05), Bcl-2 positive expression rate in gastric carcinoma tissues was higher than that in para-carcinoma tissues (P < 0.05). The expression of FHIT in gastric carcinoma tissues was related to lymphatic metastasis, distant metastasis, degree of differentiation, degree of infiltration and Hp infection (all P < 0.05). Bcl-2 expression was related to tumor diameter, differentiation degree, infiltration degree and Hp infection (all P < 0.05). The positive rate of FHIT was negatively correlated with Hp infection (r = -0.295, P < 0.05), and the positive rate of Bcl-2 was positively correlated with Hp infection (r = 0.393, P < 0.05). Conclusion The expression of FHIT protein in gastric carcinoma tissues is weakened, and the expression of Bcl-2 protein is enhanced, which are closely related to Hp infection, and the three interactions lead to the occurrence of gastric carcinoma.
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