What question did this study set out to answer?

The study aims to explore the differentiation and maturation of γδ T cells in the gut following birth.

August 7, 2026Science AdvancesOpen Access

A temporal differentiation program after birth delineates γδ T cell immunity

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Randomized trial shows γδ T cells evolve to strengthen immune response in the gut, suggesting ongoing maturation.

The study aims to explore the differentiation and maturation of γδ T cells in the gut following birth.
Analyzed gene expression profiles of γδ T cells in neonatal and adult intestinal tissues.
Examined immune responses to fungal infections in relation to γδ T cell activity.
Identified phenotypes of γδ T cells based on Tbet dependency and TCR signaling.
In the first week of life, intestinal γδ T cells showed increased activation and type 3 gene expression, while postweaning saw a rise in type 1 immunity genes.
Neonatal γδ T cells protected against fungal infections, highlighting their physiological role in gut immunity.
Adult γδT cells exhibited a Tbet-dependent type 1 immune profile and enhanced TCR signaling.

Baglioni et al. (2026) studied this question.

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