Abstract
Objective To study the expression of PTEN,Fas and DCR3 in human gastric cancer and evaluate their effects on carcinogenesis,cell proliferation,invasion and metastasis of gastric carcinoma,as well as clinical significance.Methods The expression of PTEN,Fas and DCR3 were detected by immunohistochemical method (streptavidin-peroxidase) in the tissues of 75 primary gastric carcinomas and 15 gastric ulcers.Results The positive expression rate of DCR3 in gastric carcinoma tissues was significantly higher than that in normal tissues,and the expression of PTEN and Fas was obviously lower than that in normal tissues (P 0.05).Conclusion PTEN,DCR3 and Fas have mutual restrictive relationships in the process of invasion and metastasis in gastric cancer.Detecting the expression of PTEN,Fas and DCR3 in gastric cancer is helpful to judge the malignant biological behavior of gastric cancer at a different angle,which may be considered as reliability index in clinic diagnosis,judging curative effect and monitoring the prognosis of gastric carcinoma. Key words: Stomach neoplasms; PTEN phospliohydrolase; Antigens, CD95; Receptors, tumor necrosis factor; , Immunohistocbemistry
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