Identification of antigen-presenting cell-T cell interactions driving immune responses to food.

ABSTRACT: The intestinal immune system must concomitantly tolerate food and commensals and protect against pathogens. Antigen-presenting cells (APCs) orchestrate these immune responses by presenting luminal antigens to CD4⁺ T cells and inducing their differentiation into regulatory (peripheral regulatory T cell) or inflammatory [T helper (Th) cell] subsets. We used a proximity labeling method (LIPSTIC) to identify APCs that presented dietary antigens under tolerizing and inflammatory conditions and to understand cellular mechanisms by which tolerance to food is induced and can be disrupted by infection. Helminth infections disrupted tolerance induction proportionally to the reduction in the ratio between tolerogenic APCs-including migratory dendritic cells (cDC1s) and Rorγt⁺ AP

SUBMITTER: Campos Canesso MC 

PROVIDER: S-EPMC12017586 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature