How HIV-1 Enters the Inner Foreskin
Author Information
Author(s): Zhou Zhicheng, Barry de Longchamps, Schmitt Alain, Zerbib Marc, Vacher-Lavenu Marie-Cécile, Bomsel Morgane, Ganor Yonatan
Primary Institution: Cochin Institute, CNRS (UMR 8104), Paris, France
Hypothesis
HIV-1 entry in the inner foreskin is mediated by elevated CCL5/RANTES that recruits T cells and fuels conjugate formation with Langerhans cells.
Conclusion
HIV-1 modifies chemokine secretion in the inner foreskin, leading to T-cell recruitment and efficient viral entry.
Supporting Evidence
- Male circumcision reduces acquisition of HIV-1 by 60%.
- HIV-1-infected cells induce T-cell recruitment into the inner foreskin epidermis.
- CCL5/RANTES mediates T-cell recruitment into the inner foreskin epidermis.
- HIV-1 is captured by Langerhans cells in the inner foreskin.
Takeaway
HIV-1 can enter the body through the inner foreskin, where it attracts immune cells to help it spread.
Methodology
Foreskin explants were inoculated with HIV-1-infected cells for 4 hours, and chemokine secretion and immune cell distribution were analyzed.
Potential Biases
Potential bias in the selection of foreskin samples from circumcised males.
Limitations
The study may not fully represent in vivo conditions as it uses ex vivo explants.
Participant Demographics
Healthy adult males, mean age 32 years, undergoing elective circumcision.
Statistical Information
P-Value
0.0105
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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