HIV Protease Cleavage of Procaspase 8 is Necessary for Death of HIV-Infected Cells
2008
HIV Protease and Cell Death
publication
Evidence: high
Author Information
Author(s): Nie Zilin, Bren Gary D, Rizza Stacey A, Badley Andrew D
Primary Institution: Mayo Clinic College of Medicine
Hypothesis
HIV protease cleavage of procaspase 8 is necessary for the death of HIV-infected cells.
Conclusion
HIV protease cleavage of procaspase 8 is essential for the death of infected T cells in lymphoid tissues.
Supporting Evidence
- HIV protease cleavage of procaspase 8 leads to the production of casp8p41, which is necessary for cell death.
- Cells expressing a mutated form of procaspase 8 that resists cleavage by HIV protease showed significantly less cell death.
- Casp8p41 was detected in lymphoid tissues from HIV-infected patients, indicating its role in cell death.
Takeaway
HIV can kill infected cells by cutting a protein called procaspase 8, which helps the cell die. This is important for understanding how HIV affects the body.
Methodology
The study involved mutating procaspase 8 and assessing cell death in response to HIV protease using various assays.
Participant Demographics
Lymph nodes from HIV-infected patients were analyzed.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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