A Subset of CCL25-Induced Gut-Homing T Cells Affects Intestinal Immunity to Infection and Cancer
نویسندگان
چکیده
منابع مشابه
Colitogenic effector T cells: roles of gut homing integrin, gut antigen specificity, and γδ T cells
Disturbance of T-cell homeostasis could lead to intestinal inflammation. Naive CD4 T cells undergoing spontaneous proliferation, a robust proliferative response that occurs under severe lymphopenic conditions, differentiate into effector cells producing Th1- and/or Th17-type cytokines and induce a chronic inflammation in the intestine that resembles human inflammatory bowel disease. In this stu...
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Tolerance to food antigen manifests in the absence and/or suppression of antigen-specific immune responses locally in the gut but also systemically, a phenomenon known as oral tolerance. Oral tolerance is thought to originate in the gut-draining lymph nodes, which support the generation of FoxP3(+) regulatory T (Treg) cells. Here we use several mouse models to show that Treg cells, after their ...
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T cells are imprinted to express tissue-specific homing receptors upon activation in tissue-draining lymph nodes, resulting in their migration to the site of Ag entry. Expression of gut-homing molecules alpha(4)beta(7) and CCR9 is induced by retinoic acid, a vitamin A metabolite produced by retinal dehydrogenases, which are specifically expressed in dendritic cells as well as stromal cells in m...
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Th17 and regulatory T (Treg) cells are integral in maintaining immune homeostasis and Th17-Treg misbalance associates with inflammation. We demonstrate that in addition to natural (n)Treg and induced (i)Treg cells developed from naïve precursors, Th17 cells are a novel source of Foxp3 cells by converting into ex-Th17 Foxp3 cells, and this helps to reconcile the contradictory information about t...
متن کاملImmunity, gut microbiota and infection
Recurrent infections are very common in children and a major challenge for pediatricians. They affect the children’s quality of life, cause absences from school and lost parental working days, and repeated medical examinations, hospital admissions as well as antibiotic therapies lead to high costs for society. Given their prevalence and clinical importance, various prevention strategies have be...
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ژورنال
عنوان ژورنال: Frontiers in Immunology
سال: 2019
ISSN: 1664-3224
DOI: 10.3389/fimmu.2019.00271