Expansion of CD4+CD25+ and CD25- T-Bet, GATA-3, Foxp3 and RORγt Cells in Allergic Inflammation, Local Lung Distribution and Chemokine Gene Expression
2011

Expansion of T Cells in Allergic Inflammation

Sample size: 5 publication 10 minutes Evidence: high

Author Information

Author(s): Lu You, Malmhäll Carina, Sjöstrand Margareta, Rådinger Madeleine, O'Neil Serena E., Lötvall Jan, Bossios Apostolos

Primary Institution: University of Gothenburg

Hypothesis

The study aims to determine the degree of expansion of different T cell subsets in the lungs of allergen-challenged mice.

Conclusion

Allergen exposure leads to the expansion of various T cell subsets in the lungs, with a dominant increase in Th2 cells.

Supporting Evidence

  • Allergen exposure significantly increased the number of CD4+CD25+ T cells in the lungs.
  • Th2 cells showed the greatest increase in proliferation after allergen exposure.
  • Different T cell subsets were found to have distinct distributions in lung tissue.

Takeaway

When mice are exposed to allergens, their immune system makes more special cells called T cells to help fight the allergy, especially a type called Th2 cells.

Methodology

Mice were sensitized and exposed to allergens, followed by analysis of T cell subsets using flow cytometry and immunohistochemistry.

Limitations

The study is limited to a mouse model and may not fully represent human allergic responses.

Participant Demographics

Male C57BL/6 mice, 5 to 6 weeks old.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0019889

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