Significance of CCR7 expression in bladder urothelial carcinoma / 中华泌尿外科杂志

ABSTRACT

Objective To explore the CCR7 expression status in bladder urothelial carcinoma (BUC) and the relationship between CCR7 expression and lymph node metastasis,and analyze the impact of CCR7 expression on prognosis.Methods The expression levels of CCR7 in 57 BUC tissues and 10 normal bladder tissues were estimated by immunohistochemistry technique,and the correlation between CCR7 with lymph node metastasis,tumor stage,grade,number,size,relapse or not,and patients' age/sex of BUC was analyzed.The influence factors of lymph node metastasis were tested,and so were the influence factors of prognosis.Results The positive rate of CCR7 expression among 57 patients was 82.5％ (47/57) (high expression rate was 45.6％),which was higher than that in normal bladder tissue (20.0％,all were low expression,P ＜ 0.05).The high expression rate of CCR7 in lymph node metastasis group was 68.2％ (15/22),higher than that in none lymph node metastasis group (31.4％,11/35,P ＜ 0.01).The expression level of CCR7 had no significant correlation with tumor stage,grade or other parameters.CCR7 expression,tumor stage and tumor grade were correlated with lymph node status (P ＜ 0.05),but only the first was an independent one.High CCR7 expression had a significant link with low relapse free survival (P ＜ 0.05).Conclusion The expression of CCR7 was highly expressed in BUC,which may be a positive independent influence factor of lymph node metastasis,and a predictor of poor prognosis.