Detection of?-catenin and c-myc expression in gastric adenocarcinoma by tissue microarray and its clinical significance / 中华消化杂志

ABSTRACT

Objective To study the expression and clinical significance of?-catenin and c-myc in gastric adenocarcinoma and corresponding para cancer gastric mueosa.Methods Two hundreds and ninety seven samples were collected from 102 cases of gastric adenocarcinoma,including 102 cancerous tissues and 195 para-cancerous tissues.Each sample was made into 282,156 and 156 dots tissue microarrays.Expressions of?-catenin and c-myc proteins were detected by immunohistochemical stain- ing.Results The expressions of?-catenin and c-mye were increased gradually in the process of gastric carcinogenesis.The rates of?-catenin and c myc expression were higher in carcinoma than that in intesti- nal metaplasia( P＜0.05,P＜0.001).The aberrant expression of?-catenin was closely related to the depth of invasion(P＜0.05),and the expression of c-myc was related to histological grade( P＜0.05). The aberrant expression of?-catenin was significantly correlated with the expression of c-myc in gastric adenocarcinoma(P＜0.05).Conclusions The aberrant expression of?-catenin may activate the expres sion of target gene c-myc,which plays a pivotal role in the carcinogenesis and progression of gastric adenocarcinoma.