METHODS:SP immunohistochemistry was used to detect the expression of S100A4 and MMP2 proteins in 100 cases of esophageal squamous cell carcinoma and adjacent normal mucosa.

• 方法:应用SP免疫组织化学技术检测100例食管鳞癌及其癌旁正常黏膜组织中S100A4和MMP2蛋白的表达。