title: TC21 promotes cell motility and metastasis by regulating the expression of E-cadherin and N-cadherin in hepatocellular carcinoma.
abstract: Hepatocellular carcinoma (HCC) is an aggressive type of cancer, and it may be at an advanced stage when it is detected. It has been shown that TC21, a member of the Ras superfamily, is associated with the proliferation, migration and transformation of tumor cells. Previous studies have shown that TC21 is overexpressed in breast, esophageal and oral carcinomas, and that it is closely associated with the early stages of tumorigenesis. In this study, we demonstrate that TC21 overexpression promotes the motility of HCC cells in vitro and intrahepatic metastasis in vivo. Furthermore, experiments examining the effects of both the ectopic expression of TC21 and siRNA treatment in HCC cells showed that TC21 alters the expression of the adhesive molecules E-cadherin and N-cadherin. Our data suggest that TC21 is associated with tumor progression and poor prognosis in HCC.
authors.affiliation: Shanghai Medical College, Fudan University, Shanghai, PR China.
authors.forename: Hairong
authors.initials: H
authors.lastname: Luo
authors.forename: Xiangfang
authors.initials: X
authors.lastname: Hao
authors.forename: Chao
authors.initials: C
authors.lastname: Ge
authors.forename: Fangyu
authors.initials: F
authors.lastname: Zhao
authors.forename: Miaoxin
authors.initials: M
authors.lastname: Zhu
authors.forename: Taoyang
authors.initials: T
authors.lastname: Chen
authors.forename: Ming
authors.initials: M
authors.lastname: Yao
authors.forename: Xianghuo
authors.initials: X
authors.lastname: He
authors.forename: Jinjun
authors.initials: J
authors.lastname: Li
mesh_terms: D000818:Animals; D015703:Antigens, CD / Q000378:metabolism*; D015820:Cadherins / Q000378:metabolism*; D006528:Carcinoma, Hepatocellular / Q000235:genetics / Q000378:metabolism* / Q000556:secondary; D002465:Cell Movement; D056945:Hep G2 Cells; D006801:Humans; D007150:Immunohistochemistry; D008113:Liver Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D008297:Male; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D020559:Monomeric GTP-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D009361:Neoplasm Invasiveness; D034622:RNA Interference; D046888:Tissue Array Analysis; D014162:Transfection; D015854:Up-Regulation
chemical_list: D015703:Antigens, CD; C513384:CDH1 protein, human; C050361:CDH2 protein, human; D015820:Cadherins; D008565:Membrane Proteins; C087360:RRAS2 protein, human; D020559:Monomeric GTP-Binding Proteins