Retinoic acid induces homing of protective T and B cells to the gut after subcutaneous immunization in mice

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Retinoic acid induces homing of protective T and B cells to the gut after subcutaneous immunization in mice.

Diarrheal diseases represent a major health burden in developing countries. Parenteral immunization typically does not induce efficient protection against enteropathogens because it does not stimulate migration of immune cells to the gut. Retinoic acid (RA) is critical for gut immunity, inducing upregulation of gut-homing receptors on activated T cells. In this study, we have demonstrated that ...

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BATF is required for normal expression of gut-homing receptors by T helper cells in response to retinoic acid

CCR9 and α4β7 are the major trafficking receptors for lymphocyte migration to the gut, and their expression is induced during lymphocyte activation under the influence of retinoic acid (RA). We report here that BATF (basic leucine zipper transcription factor, ATF-like), an AP-1 protein family factor, is required for optimal expression of CCR9 and α4β7 by T helper cells. BATF-deficient (knockout...

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Lactoferrin Combined with Retinoic Acid Stimulates B1 Cells to Express IgA Isotype and Gut-homing Molecules

It is well established that TGF-β1 and retinoic acid (RA) cause IgA isotype switching in mice. We recently found that lactoferrin (LF) also has an activity of IgA isotype switching in spleen B cells. The present study explored the effect of LF on the Ig production by mouse peritoneal B cells. LF, like TGF-β1, substantially increased IgA production in peritoneal B1 cells but little in peritoneal...

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Role of retinoic acid in the imprinting of gut-homing IgA-secreting cells.

Antibody-secreting cells (ASCs) lodging in the mucosa of the small intestine are derived from activated B cells that are thought to arise in gut-associated lymphoid tissues (GALT). Upon leaving the GALT, B cells return to the blood where they must express the gut-homing receptors alpha4beta7 and CCR9 in order to emigrate into the small bowel. Recent evidence indicates that gut-associated dendri...

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ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 2011

ISSN: 0021-9738

DOI: 10.1172/jci44262