Trypanosomiasis-Induced B Cell Apoptosis and Loss of Vaccine Responses
Author Information
Author(s): Radwanska Magdalena, Guirnalda Patrick, De Trez Carl, Ryffel Bernard, Black Samuel, Magez Stefan
Primary Institution: Laboratoire de Parasitologie, Université Libre de Bruxelles, ULB, Brussels, Belgium
Hypothesis
Trypanosome infections cause the loss of B cell populations and impair the immune response to vaccines.
Conclusion
Trypanosome infections lead to the rapid loss of protective B cell responses and impair vaccine-induced immunity against unrelated pathogens.
Supporting Evidence
- Trypanosome infections cause the rapid loss of IgM+ marginal zone B cells.
- Infection leads to the abrogation of vaccine-induced protective responses.
- Loss of B cell populations renders the host susceptible to re-challenge with previously encountered parasites.
- Splenic remodeling occurs during early infection, affecting B cell populations.
Takeaway
When mice get infected with trypanosomes, they lose important immune cells that help fight infections, making it harder for them to respond to vaccines.
Methodology
Mice were infected with T. brucei and various B cell populations were analyzed using FACS at different time points.
Limitations
The study primarily used a mouse model, which may not fully replicate human responses.
Participant Demographics
C57BL/6 mice were used in the experiments.
Digital Object Identifier (DOI)
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