Summary
This study was aimed to investigate the expressions of E-cadherin, p120ctn, β-catenin and NF-κB in ulcerative colitis (UC) tissues and the implications of their expressions in the pathogenesis of UC. The expressions of E-cadherin, p120ctn, β-catenin and NF-κB were detected by immunohistochemistry, and those of p120ctn and NF-κB by Western blotting in 23 cases of UC and 17 cases of normal colonic tissues. The relationship between the expression of E-cadherin or NF-κB and that of p120ctn was analyzed by Spearman rank correlation analysis. The results showed that in UC and normal colonic groups, the abnormal expression rate of E-cadherin, p120ctn, β-catenin, and NF-κB was 52.2% vs. 0 (P<0.05), 73.9% vs. 23.5% (P<0.05), 65.2% vs. 17.6% (P<0.05) and 78.4% vs. 23.5% (P<0.05), respectively. p120ctn expression was positively correlated with E-cadherin expression (r=0.404, P<0.05), but negatively with nuclear NF-κB expression (r= − 0.347, P<0.05). Western blotting showed that as compared with the normal controls, the p120ctn protein level was significantly decreased (P<0.05), whereas the NF-κB protein level was increased (P<0.05) in UC tissues. It was concluded that in the colonic tissues of UC patients, the expressions of E-cadherin, p120ctn and β-catenin are decreased, suggesting the mucosal barrier is impaired in UC. Moreover, NF-κB is increased and activated in the UC tissues, resulting in the inflammation in UC. p120ctn may influence the UC development through modulating intercellular adhesion and inflammatory response.
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This project was supported by a grant from the National Natural Science Foundation of China (No. 81070009).
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Zhang, C., Liu, Lw., Sun, Wj. et al. Expressions of E-cadherin, p120ctn, β-catenin and NF-κB in ulcerative colitis. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 35, 368–373 (2015). https://doi.org/10.1007/s11596-015-1439-9
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DOI: https://doi.org/10.1007/s11596-015-1439-9