Simian Immunodeficiency Virus: Animal Models of Disease

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Simian immunodeficiency viruses (SIVs) are members of the genus Lentivirus and the family Retroviridae. SIVmac was the first member of the group to be identified following isolation of a retrovirus from a captive rhesus macaque housed at a US primate center. The virus was introduced into captive macaque populations in the US during transfer of tissue from SIV-infected African monkeys to Asian macaques. Lentivirus genomes contain long terminal repeats at each end and genes encoding three virion structural proteins: core, polymerase, and envelope. In addition, all SIV genomes also contain five accessory genes, vif, vpr, rev, tat, and nef, and a subset of SIVs has one of two unique genes: vpr or vpu. SIV infects CD4+ cells of the immune system including T-cell, macrophages, and dendritic cells. While the CD4 molecule is the primary cellular receptor for SIV, a number of chemokine receptors are required co-receptors for SIV infection. While the endemic SIV infections of African monkeys and apes seem to be minimally pathogenic, SIV infections of Asian macaques cause simian acquired immune deficiency syndrome (AIDS). This disease results from the profound destruction of CD4+ T cells in lymphoid organs throughout the body. SIV infection of macaques closely mimics the pathogenesis, virology, immunology, and pathology of HIV infection in people and it has been used as a model to test strategies to prevent ot treat AIDS.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Virology
PublisherElsevier Ltd.
Pages594-603
Number of pages10
ISBN (Print)9780123744104
DOIs
StatePublished - Jan 1 2008

Fingerprint

Animal Disease Models
Simian Immunodeficiency Virus
Macaca
Virus Diseases
vpr Genes
Lentivirus
Retroviridae
Haplorhini
vpu Genes
Simian Acquired Immunodeficiency Syndrome
vif Genes
Genome
T-Lymphocytes
CD4 Antigens
Virology
Terminal Repeat Sequences
Chemokine Receptors
Hominidae
Allergy and Immunology
Macaca mulatta

Keywords

  • AIDS
  • CD4+ T-cell
  • Chimpanzees
  • Dendritic cells
  • Gorillas
  • HIV
  • Human
  • Interspecies transmission
  • Lentivirus
  • Macaques
  • Macrophages
  • Retrovirus

ASJC Scopus subject areas

  • Immunology and Microbiology(all)

Cite this

Simian Immunodeficiency Virus : Animal Models of Disease. / Miller, C. J.; Marthas, M.

Encyclopedia of Virology. Elsevier Ltd., 2008. p. 594-603.

Research output: Chapter in Book/Report/Conference proceedingChapter

Miller, C. J. ; Marthas, M. / Simian Immunodeficiency Virus : Animal Models of Disease. Encyclopedia of Virology. Elsevier Ltd., 2008. pp. 594-603
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