title: [Preparation of hepatitis C virus nonstructural region antigens and detection of their relative antibodies].
abstract: OBJECTIVE
  To investigate the relationship between HCV NS3 and the pathogenesis of HCV and research a method to assess the therapeutic effect of interferon (lEN) in clinic.
  
  
  METHODS
  In a retrospective research, we used HCV-NS3 antigens of different terminals expressed in E. coli which contained the recombinant plasmids involving amino terminal region (N') or carboxyl terminal region (C') of HCV-NS3, to detect the antibodies by Western blot in sera of 63 hepatitis C patients who were treated with IFN.
  
  
  RESULTS
  It proved that antibodies against HCV-NS3 N' and/or HCV NS3 C' terminals in hepatitis C patients may predict the treatment result of IFN, especially in the patients with chronic hepatitis C.
  
  
  CONCLUSIONS
  The detection of antibodies against HCV-NS3 N' and/or C' terminals may be used for evaluation of IFN treatment, especially in chronic hepatitis C ones.
authors.affiliation: Department of General Internal Medicine, China-Japan Friendship Hospital, Beijing, 100029, China.
authors.forename: X
authors.initials: X
authors.lastname: Peng
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
mesh_terms: D000998:Antiviral Agents / Q000627:therapeutic use*; D015153:Blotting, Western; D005260:Female; D016174:Hepacivirus / Q000276:immunology*; D006526:Hepatitis C / Q000097:blood / Q000188:drug therapy*; D018937:Hepatitis C Antibodies / Q000097:blood*; D018936:Hepatitis C Antigens / Q000096:biosynthesis*; D006801:Humans; D016898:Interferon-alpha / Q000627:therapeutic use*; D008297:Male; D011994:Recombinant Proteins / Q000096:biosynthesis; D012189:Retrospective Studies; D016896:Treatment Outcome; D017361:Viral Nonstructural Proteins / Q000096:biosynthesis / Q000276:immunology; D012697:Serine Endopeptidases; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases
chemical_list: D000998:Antiviral Agents; D018937:Hepatitis C Antibodies; D018936:Hepatitis C Antigens; D016898:Interferon-alpha; D011994:Recombinant Proteins; D017361:Viral Nonstructural Proteins; C084422:NS3 protein, hepatitis C virus; D012697:Serine Endopeptidases; D043583:Nucleoside-Triphosphatase; D053487:DEAD-box RNA Helicases; D000085242:Viral Proteases