Low Migration of Dendritic Cells in Response to Certain Respiratory Viruses
Author Information
Author(s): Le Nouën Cyril, Hillyer Philippa, Winter Christine C., McCarty Thomas, Rabin Ronald L., Collins Peter L., Buchholz Ursula J.
Primary Institution: National Institute of Allergy and Infectious Diseases, National Institutes of Health
Hypothesis
HRSV and HMPV induce low CCR7-mediated migration of dendritic cells compared to other viruses.
Conclusion
HRSV and HMPV lead to inefficient migration of dendritic cells, which may contribute to reduced adaptive immune responses.
Supporting Evidence
- HRSV and HMPV did not efficiently decrease CCR1, 2, and 5 expression.
- MDDC stimulated with HRSV or HMPV migrated less efficiently to the CCR7 ligand CCL19.
- Secondary stimulation with pro-inflammatory cytokines increased CCR7 expression in MDDC.
Takeaway
When certain viruses infect immune cells, those cells have a harder time moving to where they need to go to help fight the virus.
Methodology
Human monocyte-derived dendritic cells were stimulated with various viruses, and their migration and chemokine receptor expression were analyzed.
Potential Biases
Potential variability in donor responses may affect generalizability.
Limitations
The study used in vitro models, which may not fully replicate in vivo conditions.
Participant Demographics
Healthy adult donors were used to obtain monocytes.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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