A Single CD8+ T Cell Epitope Sets the Long-Term Latent Load of a Murid Herpesvirus
Author Information
Author(s): Marques Sofia, Alenquer Marta, Stevenson Philip G., Simas J. Pedro
Primary Institution: Instituto de Microbiologia e Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
Hypothesis
What determines the long-term latent load of a lymphotropic gamma-herpesvirus?
Conclusion
A single CD8+ T cell epitope significantly influences the long-term latent load of Murid herpesvirus-4.
Supporting Evidence
- A single CD8+ T cell epitope was shown to set the long-term latent load of MuHV-4.
- Mutating the epitope anchor residues increased viral loads.
- Re-introducing the epitope reduced viral loads.
- In vivo competition experiments demonstrated that epitope presentation impacts viral fitness.
Takeaway
This study found that one specific part of a virus helps control how much of it stays hidden in the body over time.
Methodology
The researchers used mouse models to study the effects of a specific CD8+ T cell epitope on viral loads.
Participant Demographics
Mice of various strains including BALB/c and C57BL/6.
Statistical Information
P-Value
p=0.011, p=3×10−5, p=0.056
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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