Interleukin-17A and Pneumococcal Colonization
Author Information
Author(s): Lu Ying-Jie, Gross Jane, Bogaert Debby, Finn Adam, Bagrade Linda, Zhang Qibo, Kolls Jay K., Srivastava Amit, Lundgren Anna, Forte Sophie, Thompson Claudette M., Harney Kathleen F., Anderson Porter W., Lipsitch Marc, Malley Richard
Primary Institution: Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
Hypothesis
Does interleukin-17A mediate acquired immunity to pneumococcal colonization?
Conclusion
Interleukin-17A plays a critical role in mediating immunity to pneumococcal colonization in mice and likely in humans.
Supporting Evidence
- Intranasal immunization with the whole cell vaccine reduced pneumococcal colonization duration in mice.
- Adoptive transfer of immune CD4+ T cells conferred immunity to naïve mice.
- IL-17A was significantly expressed in response to pneumococcal stimulation in vaccinated mice.
Takeaway
This study shows that a specific immune cell helps the body fight off a common germ that can make people sick, especially kids.
Methodology
Mice were immunized with a whole cell vaccine and then challenged with pneumococci to assess colonization and immune response.
Limitations
The study primarily used mouse models, which may not fully replicate human responses.
Participant Demographics
Mice were used for the experiments; human samples included adults and children.
Statistical Information
P-Value
0.029
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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