Influenza Virus and Pneumococcus Affect Dendritic Cell Function
Author Information
Author(s): Wu Yuet, Mao Huawei, Ling Man-To, Chow Kin-Hung, Ho Pak-Leung, Tu Wenwei, Lau Yu-Lung
Primary Institution: University of Hong Kong
Hypothesis
Co-infection may alter dendritic cell functions, leading to dysregulation of immune functions and elevated inflammatory response.
Conclusion
Successive challenge of dendritic cells with influenza virus and pneumococcus resulted in increased pro-inflammatory cytokines and decreased anti-inflammatory cytokines, influenced by timing and dose.
Supporting Evidence
- Influenza virus is a major cause of respiratory disease worldwide.
- Co-infection with Streptococcus pneumoniae often leads to severe complications.
- Dendritic cells play a key role in initiating and regulating immune responses.
Takeaway
When the body gets infected with both the flu virus and a bacteria called pneumococcus, it can make certain immune cells work differently, causing more inflammation.
Methodology
Human monocyte-derived dendritic cells were challenged with live influenza virus and heat-killed pneumococcus to study their viability, maturation, and cytokine production.
Limitations
The study is limited to in vitro experiments, and further in vivo studies are needed to understand the immune response better.
Participant Demographics
Healthy donors provided peripheral blood for the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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