PMID: 22558994May 9, 2012Paper

Gli1 expression and its relationship with the expression of Shh, Vimentin and E-cadherin in human hepatocellular carcinoma

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology
Qiu-ran XuQing-guang Liu

Abstract

To investigate the expression and clinical features of glima-associated oncogene 1(Gli1) and its correlation with the expression of sonic hedgehog(Shh), one of the ligands of hedgehog (Hh) signaling, and two epithelial-mesenchymal transition (EMT) markers, Vimentin and E-cadherin in human hepatocellular carcinoma(HCC). Paired HCC and normal tumor-adjacent tissues were collected from 63 HCC patients. Gli1 expression at both the protein and mRNA level were examined by immunohistochemistry and RT-PCR. The protein expression of Shh, Vimentin and E-cadherin were evaluated by immunohistochemistry to identify correlations with Gli1. The protein and mRNA expression of Gli1 were significantly up-regulated in the HCC tumor tissues compared to the normal tumor-adjacent tissues. Gli1 protein expression in HCC was closely correlated with intrahepatic metastases (x(2);=6.205, P<0.05), portal vein invasion (x(2);=4.014, P<0.05), high Edmonson-Steiner classification (x(2);=19.668, P<0.05) and advanced TNM stage (x(2);=7.091, P<0.05). Gli1 protein expression was positively correlated with Shh (r=0.574, P<0.05) and Vimentin(r=0.467, P<0.05), and negatively correlated with E-cadherin (r=-0.439, P<0.05). Gli1 is up-regulated in HCC tissues and clo...Continue Reading

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