Selective Transmission of R5 HIV-1 over X4 HIV-1 at the Dendritic Cell–T Cell Infectious Synapse
Author Information
Author(s): Yamamoto Takuya, Tsunetsugu-Yokota Yasuko, Mitsuki Yu-ya, Mizukoshi Fuminori, Tsuchiya Takatsugu, Terahara Kazutaka, Inagaki Yoshio, Yamamoto Naoki, Kobayashi Kazuo, Inoue Jun-ichiro
Primary Institution: National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
Hypothesis
The selective expansion of R5 HIV-1 may largely occur at the level of DC–T cell interaction.
Conclusion
The study shows that R5 HIV-1 is preferentially transmitted from dendritic cells to CD4+ T cells, influenced by the activation state of the T cells.
Supporting Evidence
- The study demonstrated that R5 HIV-1 predominantly replicates in activated CD4+ T cells.
- Transmission of R5 HIV-1 was shown to be influenced by the activation state of the T cells.
- Both R5 and X4 viruses were found to infect dendritic cells with similar efficiency.
Takeaway
When certain immune cells called dendritic cells interact with T cells, they mostly pass on a type of HIV called R5, which is better at spreading than another type called X4.
Methodology
The study used fluorescent recombinant HIV-1 viruses to analyze the transmission from dendritic cells to CD4+ T cells through flow cytometry.
Statistical Information
P-Value
p<0.005
Statistical Significance
p<0.005
Digital Object Identifier (DOI)
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