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Diminished CD103 (αEβ7) Expression on Resident T Cells from the Female Genital Tract of HIV-Positive Women.
- Source :
-
Pathogens & immunity [Pathog Immun] 2016 Fall-Winter; Vol. 1 (2), pp. 371-387. Date of Electronic Publication: 2017 Jan 16. - Publication Year :
- 2016
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Abstract
- Background: Tissue resident memory T cells (TrM) provide an enhanced response against infection at mucosal surfaces, yet their function has not been extensively studied in humans, including the female genital tract (FGT).<br />Methods: Using polychromatic flow cytometry, we studied TrM cells, defined as CD62L-CCR7-CD103 <superscript>+</superscript> CD69 <superscript>+</superscript> CD4 <superscript>+</superscript> and CD8 <superscript>+</superscript> T cells in mucosa-derived T cells from healthy and HIV-positive women.<br />Results: We demonstrate that TrM are present in the FGT of healthy and HIV-positive women. The expression of the mucosal retention receptor, CD103, from HIV-positive women was reduced compared to healthy women and was lowest in women with CD4 counts < 500 cells/mm <superscript>3</superscript> . Furthermore, CD103 expression on mucosa-derived CD8 <superscript>+</superscript> T cells correlated with antigen-specific IFN-γ production by mucosal CD4 <superscript>+</superscript> T cells and was inversely correlated with T-bet from CD8 <superscript>+</superscript> CD103 <superscript>+</superscript> mucosa-derived T cells.<br />Conclusions: These data suggest that CD4 <superscript>+</superscript> T cells, known to be impaired during HIV-1 infection and necessary for the expression of CD103 in murine models, may play a role in the expression of CD103 on resident T cells from the human FGT.<br />Competing Interests: The authors have no competing financial interests.
Details
- Language :
- English
- ISSN :
- 2469-2964
- Volume :
- 1
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Pathogens & immunity
- Publication Type :
- Academic Journal
- Accession number :
- 28164171
- Full Text :
- https://doi.org/10.20411/pai.v1i2.166