Localized CD8low/− T Cells in SIV-Infected Rhesus Macaques
Author Information
Author(s): Hong Jung Joo, Reynolds Matthew R., Mattila Teresa L., Hage Aaron, Watkins David I., Miller Christopher J., Skinner Pamela J.
Primary Institution: University of Minnesota
Hypothesis
The study investigates the localization of SIV-specific T cells in lymph and genital tissues from SIV-infected macaques.
Conclusion
The study found that small subpopulations of SIV-specific T cells with low or no CD8 expression are localized in B cell follicles and genital epithelium.
Supporting Evidence
- Most tetramer-binding cells were CD8+ and localized in T cell zones.
- Tetramer+CD8low/− cells were found in both vaginally and rectally inoculated macaques.
- Tetramer+CD8low/− cells were detected early and late post-infection.
- 75% of B cell follicle-like areas showed clusters of tetramer+CD8low/− cells.
Takeaway
Scientists looked at special immune cells in monkeys infected with a virus and found some of these cells hide in specific places in the body.
Methodology
The study used MHC-class I tetramers to visualize SIV-specific T cells in tissue sections from SIV-infected rhesus macaques.
Limitations
The study could not distinguish the genital epithelium from lamina propria in some sections.
Participant Demographics
Adult female rhesus macaques (Macaca mulatta).
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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