HSV-2 Infection Increases HIV-1 Susceptibility in Dendritic Cells
Author Information
Author(s): Elena Martinelli, Hugo Tharinger, Ines Frank, James Arthos, Michael Piatak Jr., Jeffrey D. Lifson, James Blanchard, Agegnehu Gettie, Melissa Robbiani
Primary Institution: Center for Biomedical Research, Population Council, New York, New York, United States of America
Hypothesis
HSV-2 infection modulates dendritic cell function, increasing the susceptibility of CD4+ T cells to HIV-1 infection.
Conclusion
HSV-2 infection of dendritic cells enhances the expression of α4β7 on CD4+ T cells, which may increase susceptibility to HIV-1 infection.
Supporting Evidence
- HSV-2 infection increases the percentage of α4β7high CD4+ T cells in rectal tissue and draining lymph nodes.
- HSV-2-infected dendritic cells enhance HIV-1 replication in CD4+ T cells.
- Blocking retinoic acid receptors reduces the up-regulation of α4β7 on T cells.
Takeaway
When the herpes virus infects certain immune cells, it makes them better at helping the HIV virus infect more cells, which can make it easier for HIV to spread.
Methodology
The study used a macaque model to investigate the effects of HSV-2 infection on dendritic cells and their interaction with CD4+ T cells.
Potential Biases
Potential bias in the interpretation of results due to the specific animal model used.
Limitations
The study is limited to a non-human primate model, which may not fully replicate human responses.
Participant Demographics
Adult female Chinese rhesus macaques.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI: 1.1–2.1
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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