%A ZHANG Ben-yan, YUAN Fei, XIAO Jia-cheng, et al %T Significance of expression of 14-3-3 zeta protein in gastric cancer %0 Journal Article %D 2010 %J Journal of Shanghai Jiao Tong University (Medical Science) %R 10.3969/j.issn.1674-8115.2010.09.026 %P 1129- %V 30 %N 9 %U {https://xuebao.shsmu.edu.cn/CN/abstract/article_8838.shtml} %8 2010-09-25 %X

Objective To investigate the expression of 14-3-3ζ protein in gastric cancer and its clinical significance. Methods Tissue microarray technique and immunohistochemical staining were used to investigate the expression of 14-3-3ζ protein in 100 cases of gastric cancer tissues and 76 cases of para-cancer gastric mucosa tissues. The correlation between expression of 14-3-3ζ protein and clinicopathologic characteristics of patients with gastric cancer were analysed.ResultsFor 100 cases of gastric cancer tissues, 79 (79.00%) expressed 14-3-3ζ protein, while few cells expressed 14-3-3ζ protein in normal gastric mucosa. The positive expression of 14-3-3ζ protein in papillary adenocarcinoma (100%) and tubular adenocarcinoma (86.75%) was significantly higher than those in mucinous adenocarcinoma (42.86%) and signet-ring cell carcinoma (0) (P<0.05). By Lauren's classification, the positive expression of 14-3-3ζ protein in intestinal type gastric cancer was significantly higher than that in diffuse type gastric cancer (90.91% vs 73.13%)(P<0.05). By infiltration degree of gastric cancer, the positive expression of 14-3-3ζ protein in muscular layer (78.57%) and serosa layer (81.93%) was significantly higher than that in mucosa layer (0) and submucosa layer (0) (P<0.05). The positive expression of 14-3-3ζ protein in advanced gastric cancer was 81.44%, while 14-3-3ζ protein was not expressed in all the 3 cases of early gastric cancer (P<0.05).  Conclusion The expression of 14-3-3ζ protein is significantly correlated with the histological classification and infiltration degree of gastric cancer tissues. 14-3-3ζ protein may be used as a marker for prognosis evaluation and as a potential target of biotherapy for gastric cancer.