HIV-1 Binds to Human Fetal Astrocytes and Triggers Inflammation
Author Information
Author(s): Li Jinliang, Bentsman Galina, Potash Mary Jane, Volsky David J
Primary Institution: Molecular Virology Division, St. Luke's-Roosevelt Hospital Center and Columbia University
Hypothesis
How does HIV-1 interact with human fetal astrocytes and what are the consequences of this interaction?
Conclusion
HIV-1 binding to human astrocytes leads to rapid cytokine production but does not typically result in virus entry and replication.
Supporting Evidence
- HIV-1 binding to astrocytes is extensive and independent of known chemokine receptors.
- Only about 1% of astrocytes were found to be productively infected by HIV-1.
- Binding of HIV-1 to astrocytes induced rapid synthesis of interleukin-6 and interleukin-8.
Takeaway
HIV-1 can stick to brain cells called astrocytes, making them produce chemicals that can cause inflammation, but it doesn't usually get inside these cells.
Methodology
The study used fluorescence microscopy to assess HIV-1 binding and infection in human fetal astrocytes.
Limitations
The study does not identify the specific receptor responsible for HIV-1 binding to astrocytes.
Participant Demographics
Human fetal astrocytes isolated from second trimester fetal brains.
Digital Object Identifier (DOI)
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