title: [Screening and analysis of genes encoding hepatocellular carcinoma associated tumor antigens].
abstract: OBJECTIVE
  To screen and clone the genes encoding hepatocellular carcinoma associated tumor antigens.
  
  
  METHODS
  A hepatocellular carcinoma cDNA express library was constructed with ZAP vector and analyzed by serological analysis of recombinant cDNA expression library (SEREX) with sera from autologous and allogenous patients. Monoclonalized positive phage clones were converted into pBK-CMV phagemid forms by in vivo excision. The cDNA inserts were determined by restriction endonuclease digestion with EcoR I and Xho I. The cDNA inserts were sequenced and analyzed with bioinformatics. LIMS1 insert was cut from the clone HCL5-70 and constructed into pQE 31 express vector. The recombinant LIMS1 was expressed in M15 and analyzed with SDS-PAGE and Western blot.
  
  
  RESULTS
  Fourteen genes were cloned from autologous screening and eleven genes were obtained with allogeneous analysis. One gene, kinectin, was identified in both autologous and allogeneous screening. Eight of the total twenty-four genes were unknown for their functions; the other sixteen genes can be classified into eight groups according to their established or putative function. Recombinant LIMS1 was expressed in M15.
  
  
  CONCLUSIONS
  The identification of hepatocellular carcinoma associated tumor antigens provides potential targets for immunotherapy of hepatocellular carcinoma patients and will help in the understanding of the carcinogenesis of hepatocellular carcinoma.
authors.affiliation: Department of Immunology, Peking University Health Science Center, Beijing 100083, China.
authors.forename: Hong-cheng
authors.initials: HC
authors.lastname: Wang
authors.forename: Mu-hua
authors.initials: MH
authors.lastname: Yang
authors.forename: Yong-yu
authors.initials: YY
authors.lastname: Shi
authors.forename: Xue-wen
authors.initials: XW
authors.lastname: Pang
authors.forename: Xiao-ang
authors.initials: XA
authors.lastname: Yang
authors.forename: Ji-run
authors.initials: JR
authors.lastname: Peng
authors.forename: Xi-sheng
authors.initials: XS
authors.lastname: Leng
authors.forename: Wei-feng
authors.initials: WF
authors.lastname: Chen
mesh_terms: D000951:Antigens, Neoplasm / Q000235:genetics* / Q000276:immunology; D006528:Carcinoma, Hepatocellular / Q000235:genetics* / Q000276:immunology; D018076:DNA, Complementary / Q000235:genetics; D015972:Gene Expression Regulation, Neoplastic; D015316:Genetic Therapy; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics* / Q000276:immunology
chemical_list: D000951:Antigens, Neoplasm; D018076:DNA, Complementary