Lack of Galectin-3 Drives Response to Paracoccidioides brasiliensis toward a Th2-Biased Immunity
2009

Galectin-3 and Its Role in Fungal Infection Response

Sample size: 10 publication 10 minutes Evidence: high

Author Information

Author(s): Ruas Luciana Pereira, Bernardes Emerson Soares, Fermino Marise Lopes, de Oliveira Leandro Licursi, Hsu Daniel K., Liu Fu-Tong, Chammas Roger, Roque-Barreira Maria-Cristina

Primary Institution: Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo

Hypothesis

Galectin-3 contributes to the host resistance against Paracoccidioides brasiliensis infection.

Conclusion

Galectin-3 deficiency leads to increased susceptibility to P. brasiliensis infection and a Th2-polarized immune response.

Supporting Evidence

  • Galectin-3-deficient mice showed a Th2-polarized immune response.
  • Survival rates were significantly lower in galectin-3-deficient mice.
  • Inflammatory responses were impaired in the absence of galectin-3.
  • Galectin-3 deficiency led to higher levels of IL-4 and GATA-3 expression.

Takeaway

Mice without galectin-3 get sick more easily from a fungus because their immune system doesn't work as well.

Methodology

The study involved infecting galectin-3-deficient and wild-type mice with P. brasiliensis and analyzing their immune responses.

Potential Biases

Potential bias in the selection of animal models and the interpretation of immune response data.

Limitations

The study was conducted in a controlled laboratory setting, which may not fully replicate natural infection conditions.

Participant Demographics

Male C57BL/6 mice, aged 6 to 8 weeks.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0004519

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