Expression of V-ATPase and P-gp in colon carcinoma tissues and its significance
10.3760/cma.j.issn.1007-631X.2014.10.010
- VernacularTitle:液泡膜-ATP酶与P-糖蛋白在结肠癌组织中的表达及其临床意义
- Author:
Jiaying ZHAO
;
Yuankun CAI
;
Xiaojing LI
;
Chenqing YIN
;
Weiqing SHU
;
Jingbo WU
;
Weiping ZHU
- Publication Type:Journal Article
- Keywords:
Colonic neoplasms;
P-glyeoproteins;
Adenosine triphosphatases;
Tumor microenvironment
- From:
Chinese Journal of General Surgery
2014;29(10):771-774
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the expression of Vacuolar-H +-ATPase (V-ATPase) and P-glyeoprotein (P-gp) protein in colon carcinoma tissues,the correlation between the expression of V-ATPase and P-gp and their clinicopathological significance.Methods In samples from 80 cases of colon cancer,20 cases of colon adenoma and 10 cases of normal colonic mucosa tissues,the expression of V-ATPase and P-gp protein were detected by immunohistochemical method,their relationship was analyzed,the clinicopathological features and prognosis were evaluated.Results In colon cancer,V-ATPase and P-gp protein expression was 72％ and 80％,higher than that in colon adenomas (40％,35％),and in normal colon mucosa (20％,20％),the difference was statistically significant (P ＜ 0.05).There was a positive correlation between the expression of V-ATPase and that of P-gp (r =0.567,P ＜0.01).V-ATPase and P-gp protein expression in colon cancer was associated with TNM stage,lymph node metastasis and tumor differentiation (P ＜ 0.05).Patients with high V-ATPase expression had lower 5-year survival rate than those with low V-ATPase expression (P =0.023),and 5-year recurrence rate was higher than those with low expression (P =0.024).Conclusions The expression of V-ATPase is up-regulated in colon cancer,there is a positive correlation with colon cancer progress and metastasis,and high V-ATPase protein expression predicts poor prognosis.
