HIV Trafficking During trans-Infection
Author Information
Author(s): Yu Hyun Jae Reuter, Morgan A. McDonald, David Malim
Primary Institution: Case Western Reserve University School of Medicine
Hypothesis
We hypothesize that DCs form this compartment to sequester HIV off of the cell surface, however escape of virions from the pocket results in efficient infection of T cells during immune presentation events.
Conclusion
The study demonstrates that HIV virions are routed through a specialized compartment in dendritic cells, allowing individual particles to be delivered to T cells during trans-infection.
Supporting Evidence
- Dendritic cells can bind and transfer intact HIV to T cells without becoming infected.
- The HIV-containing compartment in dendritic cells is accessible to membrane-impermeable probes.
- Live cell microscopy showed that the HIV compartment is rapidly polarized toward the infectious synapse.
Takeaway
Dendritic cells can grab HIV and keep it in a special pocket inside them, which helps them pass the virus to T cells without getting infected themselves.
Methodology
Fluorescent microscopy was used to track individual HIV particles in dendritic cells during virus uptake and trans-infection.
Limitations
The study primarily focuses on in vitro conditions, which may not fully replicate in vivo environments.
Digital Object Identifier (DOI)
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