Localization of Simian immunodeficiency virus-infected cells in the genital tract of male and female Rhesus macaques

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Abstract

The SIV/Rhesus macaque model of HIV transmission has led to an increased understanding of the interactions between virus and host during the sexual transmission of HIV. SIV can be transmitted across the intact mucosa (stratified squamous epithelium) of the foreskin and glans of the penis of Rhesus macaques. SIV-infected cells can be found at all levels of the male Rhesus macaque reproductive tract and SIV can infect cells in the mucosal epithelium of the foreskin of the penis. SIV can be transmitted to female Rhesus macaques by infusing a cell-free virus suspension into the vaginal canal through a soft plastic pediatric nasogastric feeding tube. There does not appear to be any correlation between inoculation at any particular point in the menstrual cycle and the susceptibility of an animal to infection. Furthermore, the surgical removal of the cervix and uterus did not affect the dose of cell-free virus required for the genital transmission of SIV. Thus, target cells for SIV are present in the vaginal mucosa. In chronically- infected female Rhesus macaques, SIV-infected cells are present in the uterus, cervix and vagina. SIV-infected CD1a+ and p55+ Langerhans cells are also found within the stratified squamous epithelium of the vagina. Taken together these results are consistent with the hypothesis that the virus initially infects antigen-presenting cells in the vagina (macrophages and Langerhans cells) and then subsequent rounds of replication occur in the draining lymph nodes prior to spreading to more proximal lymphoid nodes and finally to the bloodstream and distant lymphoid tissue.

Original languageEnglish (US)
Pages (from-to)331-339
Number of pages9
JournalJournal of Reproductive Immunology
Volume41
Issue number1-2
DOIs
StatePublished - Nov 1 1998

Fingerprint

Simian Immunodeficiency Virus
Macaca mulatta
Vagina
Viruses
Foreskin
Langerhans Cells
Epithelium
Penis
Cervix Uteri
Mucous Membrane
HIV
Enteral Nutrition
Lymphoid Tissue
Antigen-Presenting Cells
Menstrual Cycle
Plastics
Suspensions
Lymph Nodes
Macrophages
Pediatrics

Keywords

  • Female
  • Genital tract
  • Male
  • Rhesus macaques
  • Simian immunodeficiency virus

ASJC Scopus subject areas

  • Immunology
  • Reproductive Medicine

Cite this

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title = "Localization of Simian immunodeficiency virus-infected cells in the genital tract of male and female Rhesus macaques",
abstract = "The SIV/Rhesus macaque model of HIV transmission has led to an increased understanding of the interactions between virus and host during the sexual transmission of HIV. SIV can be transmitted across the intact mucosa (stratified squamous epithelium) of the foreskin and glans of the penis of Rhesus macaques. SIV-infected cells can be found at all levels of the male Rhesus macaque reproductive tract and SIV can infect cells in the mucosal epithelium of the foreskin of the penis. SIV can be transmitted to female Rhesus macaques by infusing a cell-free virus suspension into the vaginal canal through a soft plastic pediatric nasogastric feeding tube. There does not appear to be any correlation between inoculation at any particular point in the menstrual cycle and the susceptibility of an animal to infection. Furthermore, the surgical removal of the cervix and uterus did not affect the dose of cell-free virus required for the genital transmission of SIV. Thus, target cells for SIV are present in the vaginal mucosa. In chronically- infected female Rhesus macaques, SIV-infected cells are present in the uterus, cervix and vagina. SIV-infected CD1a+ and p55+ Langerhans cells are also found within the stratified squamous epithelium of the vagina. Taken together these results are consistent with the hypothesis that the virus initially infects antigen-presenting cells in the vagina (macrophages and Langerhans cells) and then subsequent rounds of replication occur in the draining lymph nodes prior to spreading to more proximal lymphoid nodes and finally to the bloodstream and distant lymphoid tissue.",
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AB - The SIV/Rhesus macaque model of HIV transmission has led to an increased understanding of the interactions between virus and host during the sexual transmission of HIV. SIV can be transmitted across the intact mucosa (stratified squamous epithelium) of the foreskin and glans of the penis of Rhesus macaques. SIV-infected cells can be found at all levels of the male Rhesus macaque reproductive tract and SIV can infect cells in the mucosal epithelium of the foreskin of the penis. SIV can be transmitted to female Rhesus macaques by infusing a cell-free virus suspension into the vaginal canal through a soft plastic pediatric nasogastric feeding tube. There does not appear to be any correlation between inoculation at any particular point in the menstrual cycle and the susceptibility of an animal to infection. Furthermore, the surgical removal of the cervix and uterus did not affect the dose of cell-free virus required for the genital transmission of SIV. Thus, target cells for SIV are present in the vaginal mucosa. In chronically- infected female Rhesus macaques, SIV-infected cells are present in the uterus, cervix and vagina. SIV-infected CD1a+ and p55+ Langerhans cells are also found within the stratified squamous epithelium of the vagina. Taken together these results are consistent with the hypothesis that the virus initially infects antigen-presenting cells in the vagina (macrophages and Langerhans cells) and then subsequent rounds of replication occur in the draining lymph nodes prior to spreading to more proximal lymphoid nodes and finally to the bloodstream and distant lymphoid tissue.

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