AIM： To investigate clinical significance of Pin1 and β-catenin expression in colorectal cancers and to demonstrate the relationship of their expression. METHODS： The role of Pin1 and β-catenin protein in colorect...AIM： To investigate clinical significance of Pin1 and β-catenin expression in colorectal cancers and to demonstrate the relationship of their expression. METHODS： The role of Pin1 and β-catenin protein in colorectal tumorigenesis and their clinicopathologic significance were analyzed by immunohistochemistry, and correlation between Pin1 and β-catenin protein expressions was also studied in 124 patients with colorectal cancer who were surgically treated. RESULTS： Normal colonic epithelium either failed to express or showed focal and weak expression of Pin1 and β-catenin. Overexpression of Pin1 and β-catenin protein was found in 23 （18.54%） and 50 （40.3%） of 124 colorectal cancers, respectively. Overexpression of both proteins was not related to the lymph node metastasis, tumor stage and survival period after excision. Survival analysis results indicated that tumor stage was a valuable predictor of survival. Interestingly, a significant correlation was found between Pin1 and β-catenin protein expression. CONCLUSION： Overexpression of Pin1 and β-catenin may be closely related with the development and/or progression of colorectal carcinoma and further supports that Pin1 overexpression might contribute to the upregulation of β-catenin.展开更多
Objective To investigate the expression of β-catenin and its mRNA in renal cell carcinoma.Methods Twenty-six cases with renal cell carcinoma (RCC) were studied by immunohistochemistry, Western blot and RT-PCR.Resu...Objective To investigate the expression of β-catenin and its mRNA in renal cell carcinoma.Methods Twenty-six cases with renal cell carcinoma (RCC) were studied by immunohistochemistry, Western blot and RT-PCR.Results We found the expression of β-catenis is higher in cancer tissues than in normal kidney tissues and the level of β-catenin is associated with the tumor stage. Its expression in tumor of pT3 and pT4 is obviously higher than pT1 and pT2 (P<0.01). That is to say, there was an overexpression of β-catenin protein in RCC and its level was related to the tumor stage, but the expression of β-catenin mRNA had no difference between tumor tissue and normal tissue.Conclusion β-catenin may be related to the occurrence and progress of RCC.展开更多
基金Supported by the Korea Science and Engineering Foundation (KOSEF) through the Cell Death Disease Research Center at The Catholic University of Korea, No. R13-2002-005-01004-0
文摘AIM： To investigate clinical significance of Pin1 and β-catenin expression in colorectal cancers and to demonstrate the relationship of their expression. METHODS： The role of Pin1 and β-catenin protein in colorectal tumorigenesis and their clinicopathologic significance were analyzed by immunohistochemistry, and correlation between Pin1 and β-catenin protein expressions was also studied in 124 patients with colorectal cancer who were surgically treated. RESULTS： Normal colonic epithelium either failed to express or showed focal and weak expression of Pin1 and β-catenin. Overexpression of Pin1 and β-catenin protein was found in 23 （18.54%） and 50 （40.3%） of 124 colorectal cancers, respectively. Overexpression of both proteins was not related to the lymph node metastasis, tumor stage and survival period after excision. Survival analysis results indicated that tumor stage was a valuable predictor of survival. Interestingly, a significant correlation was found between Pin1 and β-catenin protein expression. CONCLUSION： Overexpression of Pin1 and β-catenin may be closely related with the development and/or progression of colorectal carcinoma and further supports that Pin1 overexpression might contribute to the upregulation of β-catenin.
文摘Objective To investigate the expression of β-catenin and its mRNA in renal cell carcinoma.Methods Twenty-six cases with renal cell carcinoma (RCC) were studied by immunohistochemistry, Western blot and RT-PCR.Results We found the expression of β-catenis is higher in cancer tissues than in normal kidney tissues and the level of β-catenin is associated with the tumor stage. Its expression in tumor of pT3 and pT4 is obviously higher than pT1 and pT2 (P<0.01). That is to say, there was an overexpression of β-catenin protein in RCC and its level was related to the tumor stage, but the expression of β-catenin mRNA had no difference between tumor tissue and normal tissue.Conclusion β-catenin may be related to the occurrence and progress of RCC.
