Display options
Share it on

Emerg Microbes Infect. 2014 Mar;3(3):e21. doi: 10.1038/emi.2014.19. Epub 2014 Mar 26.

Natural reservoirs for homologs of hepatitis C virus.

Emerging microbes & infections

Stephanie Pfaender, Richard Jp Brown, Thomas Pietschmann, Eike Steinmann

Affiliations

  1. Institute for Experimental Virology, Twincore Centre of Experimental and Clinical Infection Research; a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research , Hannover 30625, Germany.

PMID: 26038514 PMCID: PMC3974340 DOI: 10.1038/emi.2014.19

Abstract

Hepatitis C virus is considered a major public health problem, infecting 2%-3% of the human population. Hepatitis C virus infection causes acute and chronic liver disease, including chronic hepatitis, cirrhosis and hepatocellular carcinoma. In fact, hepatitis C virus infection is the most frequent indication for liver transplantation and a vaccine is not available. Hepatitis C virus displays a narrow host species tropism, naturally infecting only humans, although chimpanzees are also susceptible to experimental infection. To date, there is no evidence for an animal reservoir of viruses closely related to hepatitis C virus which may have crossed the species barrier to cause disease in humans and resulted in the current pandemic. In fact, due to this restricted host range, a robust immunocompetent small animal model is still lacking, hampering mechanistic analysis of virus pathogenesis, immune control and prophylactic vaccine development. Recently, several studies discovered new viruses related to hepatitis C virus, belonging to the hepaci- and pegivirus genera, in small wild mammals (rodents and bats) and domesticated animals which live in close contact with humans (dogs and horses). Genetic and biological characterization of these newly discovered hepatitis C virus-like viruses infecting different mammals will contribute to our understanding of the origins of hepatitis C virus in humans and enhance our ability to study pathogenesis and immune responses using tractable animal models. In this review article, we start with an introduction on the genetic diversity of hepatitis C virus and then focus on the newly discovered viruses closely related to hepatitis C virus. Finally, we discuss possible theories about the origin of this important viral human pathogen.

Keywords: genetic diversity; hepacivirus; hepatitis C virus; homologs of hepatitis C virus; pegivirus

References

  1. J Viral Hepat. 1997 Mar;4(2):77-9 - PubMed
  2. Curr Opin Virol. 2013 Feb;3(1):84-91 - PubMed
  3. Curr Top Microbiol Immunol. 2013;369:17-48 - PubMed
  4. J Gen Virol. 2004 Nov;85(Pt 11):3173-88 - PubMed
  5. PLoS Pathog. 2013;9(6):e1003438 - PubMed
  6. Nat Med. 1995 Jun;1(6):564-9 - PubMed
  7. Science. 2001 Jun 22;292(5525):2323-5 - PubMed
  8. Proc Natl Acad Sci U S A. 1995 Apr 11;92(8):3401-5 - PubMed
  9. Trends Microbiol. 2011 Feb;19(2):95-103 - PubMed
  10. Curr Opin Gastroenterol. 2013 May;29(3):243-9 - PubMed
  11. Hepatology. 2014 Jan;59(1):318-27 - PubMed
  12. Biochimie. 2003 Mar-Apr;85(3-4):295-301 - PubMed
  13. J Virol. 2012 Jun;86(11):6171-8 - PubMed
  14. J Gen Virol. 2001 Apr;82(Pt 4):693-712 - PubMed
  15. Nat Rev Drug Discov. 2013 Aug;12(8):595-610 - PubMed
  16. Science. 1997 Jul 25;277(5325):570-4 - PubMed
  17. Proc Natl Acad Sci U S A. 2013 May 14;110(20):8194-9 - PubMed
  18. Nat Rev Microbiol. 2007 Jun;5(6):453-63 - PubMed
  19. Hepatology. 2005 Oct;42(4):962-73 - PubMed
  20. Clin Microbiol Rev. 2006 Jul;19(3):531-45 - PubMed
  21. J Exp Med. 1967 Apr 1;125(4):673-88 - PubMed
  22. PLoS Pathog. 2013 Oct;9(10):e1003651 - PubMed
  23. Science. 2013 Apr 19;340(6130):284-6 - PubMed
  24. Science. 2013 Aug 30;341(6149):948-9 - PubMed
  25. Curr Opin Virol. 2012 Oct;2(5):561-8 - PubMed
  26. Nature. 2013 Jun 20;498(7454):310-1 - PubMed
  27. Science. 1989 Apr 21;244(4902):359-62 - PubMed
  28. Semin Liver Dis. 2000;20(1):1-16 - PubMed
  29. Nature. 1999 Feb 4;397(6718):436-41 - PubMed
  30. J Med Primatol. 2006 Dec;35(6):384-7 - PubMed
  31. Science. 1998 Oct 2;282(5386):103-7 - PubMed
  32. J Gen Virol. 2011 Feb;92(Pt 2):233-46 - PubMed
  33. MBio. 2013 Apr 09;4(2):e00216-13 - PubMed
  34. MBio. 2013 Sep 03;4(5):e00598-13 - PubMed
  35. Semin Liver Dis. 2011 Nov;31(4):356-74 - PubMed
  36. J Virol. 1998 Apr;72(4):2738-44 - PubMed
  37. Proc Natl Acad Sci U S A. 2013 Apr 9;110(15):E1407-15 - PubMed
  38. Nature. 2013 Sep 12;501(7466):237-41 - PubMed
  39. Clin Microbiol Infect. 2011 Feb;17(2):107-15 - PubMed
  40. Nature. 2005 Aug 18;436(7053):973-8 - PubMed
  41. Proc Natl Acad Sci U S A. 2011 Jul 12;108(28):11608-13 - PubMed
  42. PLoS Pathog. 2010 Jul 01;6:e1000972 - PubMed
  43. J Med Virol. 1996 Jan;48(1):60-7 - PubMed
  44. J Virol. 2013 Jun;87(12):7185-90 - PubMed
  45. Emerg Infect Dis. 2012 Dec;18(12):1976-82 - PubMed
  46. J Virol. 2010 Nov;84(22):11905-15 - PubMed
  47. Nature. 2008 Feb 21;451(7181):990-3 - PubMed
  48. Science. 1996 Jan 26;271(5248):505-8 - PubMed
  49. J Virol. 2013 Aug;87(16):8971-81 - PubMed
  50. Proc Natl Acad Sci U S A. 2013 Oct 1;110(40):16151-6 - PubMed
  51. J Virol. 2012 Apr;86(7):3952-60 - PubMed

Publication Types

Grant support