title: A biphasic pattern of anti-pre-S responses in acute hepatitis B virus infection.
abstract: The clinical relevance of the immune response to the translation products of the pre-S1 and pre-S2 regions of hepatitis B virus was examined by testing sequential serum samples from 17 patients with acute self-limited hepatitis B and from two patients in whom chronic liver disease developed. Anti-pre-S antibodies were determined by enzyme immunoassays based on the inhibition of binding of monoclonal antibodies to epitopes in the pre-S1 and pre-S2 sequence. In acute, self-limited infection, anti-pre-S antibodies appeared in a biphasic pattern. The early antibodies were detected at the time of clinical signs of acute disease when HBsAg and often HBeAg were present, but hepatitis B virus DNA was no longer detectable in serum. Anti-pre-S levels then fell, but subsequently reappeared as the late antibody during the recovery phase, after development of anti-HBe, but before anti-HBs. Anti-pre-S responses were detected in 15 of 17 patients who recovered (88.2%) and in both patients with acute hepatitis B virus infection evolving to chronic liver disease. Although the early antibodies to pre-S1 and pre-S2 proteins appeared at the time of decreasing levels of infectious virus in serum in cases of self-limited infection, these antibodies also were transiently or continuously present with high levels of serum hepatitis B virus DNA in patients in whom chronic hepatitis B infection developed. Thus the anti-pre-S response in acute hepatitis is not a prognostic marker for clinical resolution.(ABSTRACT TRUNCATED AT 250 WORDS)
authors: Microbial Immunology Unit, Pasteur Institute, Paris, France.
authors: A
authors: A
authors: Budkowska
authors: P
authors: P
authors: Dubreuil
authors: P
authors: P
authors: Maillard
authors: T
authors: T
authors: Poynard
authors: J
authors: J
authors: Pillot
mesh_terms: D000208:Acute Disease; D002908:Chronic Disease; D004279:DNA, Viral / Q000097:blood; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000096:biosynthesis* / Q000097:blood; D006514:Hepatitis B Surface Antigens / Q000097:blood / Q000276:immunology*; D006513:Hepatitis B e Antigens / Q000097:blood; D006515:Hepatitis B virus / Q000235:genetics / Q000276:immunology*; D006801:Humans; D007124:Immunoenzyme Techniques; D011237:Predictive Value of Tests; D011379:Prognosis; D011498:Protein Precursors / Q000097:blood / Q000276:immunology*
chemical_list: D004279:DNA, Viral; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D006513:Hepatitis B e Antigens; D011498:Protein Precursors; C050806:presurface protein 1, hepatitis B surface antigen; C050807:presurface protein 2, hepatitis B surface antigen