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Related Concept Videos

Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...

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Analysis of Simian Immunodeficiency Virus-specific CD8+ T-cells in Rhesus Macaques by Peptide-MHC-I Tetramer Staining
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Simian immunodeficiency virus interactions with macaque dendritic cells.

Natalia Teleshova1, Nina Derby, Elena Martinelli

  • 1HIV and AIDS Program, Center for Biomedical Research, Population Council, New York, NY 10065, USA. nteleshova@popcouncil.org

Advances in Experimental Medicine and Biology
|September 15, 2012
PubMed
Summary

Dendritic cells (DCs) play a crucial role in simian immunodeficiency virus (SIV) transmission and immunity. Harnessing DC function offers potential strategies for developing anti-SIV therapies and preventative measures.

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Area of Science:

  • Immunology
  • Virology
  • Primate Models

Background:

  • Simian immunodeficiency virus (SIV) infection in nonhuman primates (NHPs) serves as a vital model for understanding human immunodeficiency virus (HIV) pathogenesis.
  • HIV infection significantly alters the frequency, phenotype, and function of myeloid and plasmacytoid dendritic cells (DCs).
  • DC alterations during pathogenic SIV infection mirror those observed in HIV-infected individuals.

Purpose of the Study:

  • To summarize advances in dendritic cell (DC)-mediated simian immunodeficiency virus (SIV) transmission.
  • To elucidate the role of DCs in innate and adaptive immunity against SIV.
  • To explore strategies for leveraging DC function to generate anti-SIV immune responses.

Main Methods:

  • Utilizing nonhuman primate (NHP) models, including rhesus macaques, to study SIV infection and transmission.
  • Analyzing changes in dendritic cell subsets (myeloid and plasmacytoid) during SIV infection.
  • Investigating early SIV infection events at mucosal portals of entry in NHP models.

Main Results:

  • SIV infection profoundly impacts DC populations, affecting their frequency, phenotype, and function.
  • NHP models allow detailed dissection of DC-driven SIV infection and viral manipulation of the DC system.
  • The SIV model facilitates the study of early mucosal transmission events and DC involvement.

Conclusions:

  • Understanding DC alterations in SIV infection is critical for designing effective HIV therapeutics and prevention strategies.
  • NHP models are instrumental in deciphering DC roles in SIV pathogenesis and disease control.
  • Targeting DC functions holds promise for inducing protective anti-SIV immunity.