Selective imprinting of gut-homing T cells by Peyer's patch dendritic cells

Mora, JR; Bono, MR.; Manjunath, N; Weninger W.; Cavanagh, LL; Rosemblatt, M.; von Andrian, UH

Abstract

Whereas naive T cells migrate only to secondary lymphoid organs, activation by antigen confers to T cells the ability to home to non-lymphoid sites. Activated effector/memory T cells migrate preferentially to tissues that are connected to the secondary lymphoid organs where antigen was first encountered. Thus, oral antigens induce effector/memory cells that express essential receptors for intestinal homing, namely the integrin ?4?7 and CCR9, the receptor for the gut-associated chemokine TECK/CCL25 (refs 6, 8, 9). Here we show that this imprinting of gut tropism is mediated by dendritic cells from Peyer's patches. Stimulation of CD8-expressing T cells by dendritic cells from Peyer's patches, peripheral lymph nodes and spleen induced equivalent activation markers and effector activity in T cells, but only Peyer's patch dendritic cells induced high levels of ?4?7, responsiveness to TECK and the ability to home to the small intestine. These findings establish that Peyer's patch dendritic cells imprint gut-homing specificity on T cells, and thus license effector/memory cells to access anatomical sites most likely to contain their cognate antigen.

Más información

Título según WOS: Selective imprinting of gut-homing T cells by Peyer's patch dendritic cells
Título según SCOPUS: Selective imprinting of gut-homing T cells by Peyer's patch dendritic cells
Título de la Revista: NATURE
Volumen: 424
Número: 6944
Editorial: Nature Research
Fecha de publicación: 2003
Página de inicio: 88
Página final: 93
Idioma: English
URL: http://www.nature.com/doifinder/10.1038/nature01726
DOI:

10.1038/nature01726

Notas: ISI, SCOPUS