Clinicopathologic significance of BAG1 and TIMP3 expression in colon carcinoma  

作　　者：Yu-Xian Bai Ji-Lin Yi Jian-Feng Li Hong Sui 

机构地区：[1]Department of Medicine, Affiliated Tumor Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China [2]Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, Hubei Province, China

出　　处：《World Journal of Gastroenterology》2007年第28期3883-3885,共3页世界胃肠病学杂志（英文版）

摘　　要：AIM: To explore the expression of BAG1 and tissue inhibitor of metalloproteinase 3 (TIMP3) in colon carcinoma and their correlation and clinicopathologic significance. METHODS: SABC immunohistochemistry was used to detect the expression of BAG1 and TIMP3 in 80 colon carcinoma tissues and 20 normal colonic mucosa. RESULTS: Positive rate of BAG1 in colon carcinoma tissue (80%) was notably higher compared to normal colonic mucosa (10%) (P < 0.05). However, no significant difference was observed in positive rate of TIMP3 in colon carcinoma tissue (43.75%) as compared with normal colonic mucosa (60%) (P > 0.05). Expression of BAG1 and TIMP3 was strongly associated with colon carcinoma differentiation, Duke's staging, lymph node metastasis and survival rate (P < 0.05), but not associated with gender and age. Moreover, BAG1 expression was not correlated with TIMP3. CONCLUSION: Our results suggest that over-expression of BAG1 or attenuated expression of TIMP3 may play an important role in genesis and development of colon carcinoma. The protein expression levels of BAG1 and TIMP3 are related to the malignant degree, infiltration and metastasis of colon carcinoma. BAG1 and TIMP3 might be new biological parameters in predicting invasion and metastasis of colon carcinoma.AIM： To explore the expression of BAG1 and tissue inhibitor of metalloproteinase 3 （TIMP3） in colon carcinoma and their correlation and clinicopathologic significance.METHODS： SABC immunohistochemistry was used to detect the expression of BAG1 and TIMP3 in 80 colon carcinoma tissues and 20 normal colonic mucosa.RESULTS： Positive rate of BAG1 in colon carcinoma tissue （80%） was notably higher compared to normal colonic mucosa （10%） （P 〈 0.05）. However, no significant difference was observed in positive rate of TIMP3 in colon carcinoma tissue （43.75%） as compared with normal colonic mucosa （60%） （P 〉 0.05）. Expression of BAG1 and TIMP3 was strongly associated with colon carcinoma differentiation, Duke＇s staging, lymph node metastasis and survival rate （P 〈 0.05）, but not associated with gender and age. Moreover, BAG1 expression was not correlated with TIMP3.CONCLUSION： Our results suggest that over-expression of BAG1 or attenuated expression of TIMP3 may play an important role in genesis and development of colon carcinoma. The protein expression levels of BAG1 and TIMP3 are related to the malignant degree, infiltration and metastasis of colon carcinoma. BAG1 and TIMP3 might be new biological parameters in predicting invasion and metastasis of colon carcinoma.

关 键 词：BAG1 TIMP3 Colon carcinoma IMMUNO-HISTOCHEMISTRY Duke＇s staging  Metastasis 

分 类 号：R735.3[医药卫生—肿瘤]