title: [Increased expression URG11 in hepatocellular carcinoma tissues promotes the growth of hepatocellular carcinoma cells].
abstract: OBJECTIVE
  To detect the expression of upregulated gene 11 (URG11) in hepatocellular carcinoma (HCC) tissues and cell lines and study the effect of URG11 on HCC cell growth.
  
  
  METHODS
  URG11 expression was detected through immunohistochemistry in normal liver tissues, HCC tissues, and matched adjacent non-cancer tissues. URG11 expression in HCC cell lines and control liver cell line was examined by reverse transcription PCR and western blotting. URG11 eukaryotic expression vector and siRNA vector were transfected into QZG cells and HCC cells. Growth of the transfected cells was investigated by MTT assay. Cell cycle was detected by flow cytometry.
  
  
  RESULTS
  Positive rates of URG11 expression in HCC tissues was 62.35%, in adjacent non-tumor liver tissues was 69.41%, and in normal liver tissues was 18.5%. URG11 expression was higher significantly in HCC tissues as well as adjacent non-cancer tissues than in normal liver tissues. HCC cells were found to be with the highest URG11 expression, while QZG cells were with negative expression. After URG11 expression was upregulated in QZG cells, QZG cell growth was accelerated, while when URG11 was downregulated in HCC cells, HCC cell growth was suppressed.
  
  
  CONCLUSIONS
  URG11 could promote HCC cell growth and proliferation. It might play an important role in HCC development.
authors.affiliation: Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
authors.forename: Huahong
authors.initials: H
authors.lastname: Xie
authors.affiliation: Department of Gastroenterology, Huashan Hospital, Fudan University, Shanghai 200040, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
mesh_terms: D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000209:etiology / Q000473:pathology*; D002453:Cell Cycle; D049109:Cell Proliferation; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000209:etiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015534:Trans-Activators / Q000032:analysis / Q000502:physiology*
chemical_list: D015534:Trans-Activators; C547681:VWCE protein, human