Influenza A Virus Infection and Antibody Response to Matrix Protein 2
Author Information
Author(s): Feng JingQi, Zhang Manxin, Mozdzanowska Krystyna, Zharikova Darya, Hoff Henry, Wunner William, Couch Robert B, Gerhard Walter
Primary Institution: The Wistar Institute
Hypothesis
The study investigates the effectiveness of the antibody response to the ectodomain of matrix protein 2 (M2e) in humans following influenza A virus infection.
Conclusion
The study provides evidence that M2e-specific antibody-mediated protection is currently lacking or suboptimal in humans.
Supporting Evidence
- Only 45% of patients showed a significant increase in M2e-specific antibody titers after infection.
- Antibody titers were very low in acute serum samples, indicating poor initial response.
- Repeated infections were necessary to achieve higher antibody levels.
Takeaway
When people get the flu, their bodies don't make enough of a specific antibody that could help fight the virus, which means they might not be well protected.
Methodology
The study developed a HeLa cell line expressing tetrameric M2 for use in an ELISA to measure M2e-specific antibody titers in human and mouse sera.
Potential Biases
Potential bias in the measurement of antibody responses due to the assays used.
Limitations
The study's findings may not be generalizable due to the small sample size and the specific population studied.
Participant Demographics
Adults presenting with naturally acquired influenza virus infection.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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