ATM蛋白在早期食管鳞癌组织中的表达及意义

The expression and clinical significance of ATM protein in early esophageal squamous carcinoma

目的研究共济失调毛细血管扩张征突变(ATM)蛋白在早期食管鳞癌癌变组织及其癌旁正常组织中的表达差异,初步探讨其在早期食管鳞癌诊断中的意义。方法采用免疫组织化学SP法,检测ATM蛋白在早期食管鳞癌癌变组织及其癌旁正常组织中的表达,采用统计学方法分析其表达差异。结果 ATM蛋白在早期食管鳞癌癌变组织及其癌旁正常组织中的阳性表达率分别是65%、95%,差异有统计学意义(P=0.044)。结论 ATM蛋白在食管鳞癌癌变组织中的表达下降,检测食管鳞癌癌变组织的ATM蛋白表达可能成为早期诊断食管鳞癌的方法。

Objective To study expression differences of the ataxia telangiectasia mutated （ATM ） protein in early esophageal squamous cell carcinoma tissues and adjacent normal tissues in order to explore its diagnostic significance for early esophageal squa-mous cell carcinoma .Methods ATM protein expression was detected in early esophageal squamous cell carcinoma tissues and adja-cent normal tissues by immunohistochemical SP method and the differential expression was calculated by using statistical methods . Results The positive positive expression rate of ATM protein in the early esophageal squamous cell carcinoma tissue and adjacent normal tissue were 65% and 95% respectively ,which were statistically different （P= 0 .044） .Conclusion The ATM protein ex-pression in esophageal squamous cell carcinoma tissue declined .The detection of ATM protein in esophageal squamous cell carcino-ma tissue could become a reliable method for early diagnose of esophageal squamous cell carcinoma .