Galectin-3's Role in B Cell Niches During Schistosoma mansoni Infection
Author Information
Author(s): Oliveira Felipe L., Brand Camila, Paula Adelzon A., Arcanjo Kátia D., Hsu Daniel K., Liu Fu-Tong, Takiya Christina M., Borojevic Radovan, Chammas Roger, El-Cheikh Márcia C.
Primary Institution: Universidade Federal do Rio de Janeiro
Hypothesis
Does galectin-3 interfere with the lymphoid organization of B cell compartments in mesenteric lymph nodes during chronic schistosomiasis?
Conclusion
The absence of galectin-3 leads to significant disorganization in B cell and plasma cell niches in mesenteric lymph nodes during schistosomiasis.
Supporting Evidence
- Galectin-3 is expressed in non-lymphoid follicular cells and its absence leads to severe tissue damage.
- Chronically-infected galectin-3−/− mice showed reduced macrophages and B lymphocytes.
- Histological analysis revealed disorganized B cell niches in the absence of galectin-3.
- Apoptotic bodies were more numerous in galectin-3−/− mice during schistosomiasis.
- Phagocytic capacity of macrophages was reduced in galectin-3−/− mice.
Takeaway
Galectin-3 helps keep B cells organized in the lymph nodes, and without it, the cells get all mixed up and don't work properly during infection.
Methodology
The study used wild type and galectin-3 knockout mice infected with Schistosoma mansoni, analyzing lymph node cell populations and histological changes.
Potential Biases
Potential bias in the interpretation of histological data due to subjective analysis.
Limitations
The study was conducted in mice, which may not fully replicate human responses.
Participant Demographics
Inbred C57/bl6 wild type and galectin-3−/− mice matched by age and sex.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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