Europe PMC

This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our privacy notice and cookie policy.

Abstract 


delta agent of human origin was inoculated into four woodchucks chronically infected with woodchuck hepatitis virus (WHV). The animals developed delta infections with serologic patterns similar to those previously observed in human and chimpanzee infections. delta antigen was detected transiently in serum and liver and was followed by seroconversion to anti-delta antibody. Analogous to the chimpanzee model of delta infection, serum and hepatocyte markers of WHV were suppressed in the woodchuck during acute delta infection. The suppression of WHV DNA in serum was evident only during the time of delta-antigen positivity, while the inhibition of other WHV markers was more protracted. The delta antigen in woodchuck sera circulated as an internal component of a particle similar in size to the human delta particle (36-nm diameter) and was encapsidated by the woodchuck hepatitis virus surface antigen; delta antigen from infected woodchuck and chimpanzee livers had similar biophysical properties. Histologic analysis showed that experimental delta infection is associated with a transient acute hepatitis in woodchucks and loss of hepatocytes carrying WHV antigens. The lesions differed from the conspicuous hepatitis associated with reappearance of WHV replication. Hepatitis B-like viruses, therefore, appear to provide the requisite helper functions for delta replication and the woodchuck represents a useful model for study of the virology and pathology of the delta agent.

Free full text 


Logo of pnasLink to Publisher's site
Proc Natl Acad Sci U S A. 1984 Apr; 81(7): 2208–2212.
PMCID: PMC345467
PMID: 6585793

Transmission of the hepatitis B virus-associated delta agent to the eastern woodchuck.

Abstract

delta agent of human origin was inoculated into four woodchucks chronically infected with woodchuck hepatitis virus (WHV). The animals developed delta infections with serologic patterns similar to those previously observed in human and chimpanzee infections. delta antigen was detected transiently in serum and liver and was followed by seroconversion to anti-delta antibody. Analogous to the chimpanzee model of delta infection, serum and hepatocyte markers of WHV were suppressed in the woodchuck during acute delta infection. The suppression of WHV DNA in serum was evident only during the time of delta-antigen positivity, while the inhibition of other WHV markers was more protracted. The delta antigen in woodchuck sera circulated as an internal component of a particle similar in size to the human delta particle (36-nm diameter) and was encapsidated by the woodchuck hepatitis virus surface antigen; delta antigen from infected woodchuck and chimpanzee livers had similar biophysical properties. Histologic analysis showed that experimental delta infection is associated with a transient acute hepatitis in woodchucks and loss of hepatocytes carrying WHV antigens. The lesions differed from the conspicuous hepatitis associated with reappearance of WHV replication. Hepatitis B-like viruses, therefore, appear to provide the requisite helper functions for delta replication and the woodchuck represents a useful model for study of the virology and pathology of the delta agent.

Full text

Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.3M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Rizzetto M. The delta agent. Hepatology. 1983 Sep-Oct;3(5):729–737. [Abstract] [Google Scholar]
  • Rizzetto M, Canese MG, Aricò S, Crivelli O, Trepo C, Bonino F, Verme G. Immunofluorescence detection of new antigen-antibody system (delta/anti-delta) associated to hepatitis B virus in liver and in serum of HBsAg carriers. Gut. 1977 Dec;18(12):997–1003. [Europe PMC free article] [Abstract] [Google Scholar]
  • Rizzetto M, Canese MG, Gerin JL, London WT, Sly DL, Purcell RH. Transmission of the hepatitis B virus-associated delta antigen to chimpanzees. J Infect Dis. 1980 May;141(5):590–602. [Abstract] [Google Scholar]
  • Rizzetto M, Hoyer B, Canese MG, Shih JW, Purcell RH, Gerin JL. delta Agent: association of delta antigen with hepatitis B surface antigen and RNA in serum of delta-infected chimpanzees. Proc Natl Acad Sci U S A. 1980 Oct;77(10):6124–6128. [Europe PMC free article] [Abstract] [Google Scholar]
  • Rizzetto M, Verme G, Recchia S, Bonino F, Farci P, Aricò S, Calzia R, Picciotto A, Colombo M, Popper H. Chronic hepatitis in carriers of hepatitis B surface antigen, with intrahepatic expression of the delta antigen. An active and progressive disease unresponsive to immunosuppressive treatment. Ann Intern Med. 1983 Apr;98(4):437–441. [Abstract] [Google Scholar]
  • Smedile A, Farci P, Verme G, Caredda F, Cargnel A, Caporaso N, Dentico P, Trepo C, Opolon P, Gimson A, et al. Influence of delta infection on severity of hepatitis B. Lancet. 1982 Oct 30;2(8305):945–947. [Abstract] [Google Scholar]
  • Summers J, Smolec JM, Snyder R. A virus similar to human hepatitis B virus associated with hepatitis and hepatoma in woodchucks. Proc Natl Acad Sci U S A. 1978 Sep;75(9):4533–4537. [Europe PMC free article] [Abstract] [Google Scholar]
  • Summers J. Three recently described animal virus models for human hepatitis B virus. Hepatology. 1981 Mar-Apr;1(2):179–183. [Abstract] [Google Scholar]
  • Popper H, Shih JW, Gerin JL, Wong DC, Hoyer BH, London WT, Sly DL, Purcell RH. Woodchuck hepatitis and hepatocellular carcinoma: correlation of histologic with virologic observations. Hepatology. 1981 Mar-Apr;1(2):91–98. [Abstract] [Google Scholar]
  • Rizzetto M, Shih JW, Gerin JL. The hepatitis B virus-associated delta antigen: isolation from liver, development of solid-phase radioimmunoassays for delta antigen and anti-delta and partial characterization of delta antigen. J Immunol. 1980 Jul;125(1):318–324. [Abstract] [Google Scholar]
  • Wong DC, Shih JW, Purcell RH, Gerin JL, London WT. Natural and experimental infection of woodchucks with woodchuck hepatitis virus, as measured by new, specific assays for woodchuck surface antigen and antibody. J Clin Microbiol. 1982 Mar;15(3):484–490. [Europe PMC free article] [Abstract] [Google Scholar]
  • Cote PJ, Jr, Dapolito GM, Shih JW, Gerin JL. Surface antigenic determinants of mammalian "hepadnaviruses" defined by group- and class-specific monoclonal antibodies. J Virol. 1982 Apr;42(1):135–142. [Europe PMC free article] [Abstract] [Google Scholar]
  • Cote PJ, Jr, Gerin JL. Nonoverlapping antigenic sites of woodchuck hepatitis virus surface antigen and their cross-reactivity with ground squirrel hepatitis virus and hepatitis B virus surface antigens. J Virol. 1983 Jul;47(1):15–23. [Europe PMC free article] [Abstract] [Google Scholar]
  • Shih JW, Cote PJ, Jr, Dapolito GM, Gerin JL. Production of monoclonal antibodies against hepatitis B surface antigen (HBsAg) by somatic cell hybrids. J Virol Methods. 1980;1(5):257–273. [Abstract] [Google Scholar]
  • Kaplan PM, Greenman RL, Gerin JL, Purcell RH, Robinson WS. DNA polymerase associated with human hepatitis B antigen. J Virol. 1973 Nov;12(5):995–1005. [Europe PMC free article] [Abstract] [Google Scholar]
  • Rave N, Crkvenjakov R, Boedtker H. Identification of procollagen mRNAs transferred to diazobenzyloxymethyl paper from formaldehyde agarose gels. Nucleic Acids Res. 1979 Aug 10;6(11):3559–3567. [Europe PMC free article] [Abstract] [Google Scholar]
  • Thomas PS. Hybridization of denatured RNA and small DNA fragments transferred to nitrocellulose. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5201–5205. [Europe PMC free article] [Abstract] [Google Scholar]
  • Berninger M, Hammer M, Hoyer B, Gerin JL. An assay for the detection of the DNA genome of hepatitis B virus in serum. J Med Virol. 1982;9(1):57–68. [Abstract] [Google Scholar]
  • Tanaka K, Mori W, Suwa K. Victoria blue-nuclear fast red stain for HBs antigen detection in paraffin section. Acta Pathol Jpn. 1981 Jan;31(1):93–98. [Abstract] [Google Scholar]
  • Southern EM. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. [Abstract] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

Citations & impact 


Impact metrics

Jump to Citations

Citations of article over time

Alternative metrics

Altmetric item for https://www.altmetric.com/details/33968089
Altmetric
Discover the attention surrounding your research
https://www.altmetric.com/details/33968089

Article citations


Go to all (93) article citations

Funding 


Funders who supported this work.

NIAID NIH HHS (2)