Publication Date:
2006-11-18
Description:
Normal intestinal mucosa contains abundant immunoglobulin A (IgA)-secreting cells, which are generated from B cells in gut-associated lymphoid tissues (GALT). We show that dendritic cells (DC) from GALT induce T cell-independent expression of IgA and gut-homing receptors on B cells. GALT-DC-derived retinoic acid (RA) alone conferred gut tropism but could not promote IgA secretion. However, RA potently synergized with GALT-DC-derived interleukin-6 (IL-6) or IL-5 to induce IgA secretion. Consequently, mice deficient in the RA precursor vitamin A lacked IgA-secreting cells in the small intestine. Thus, GALT-DC shape mucosal immunity by modulating B cell migration and effector activity through synergistically acting mediators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mora, J Rodrigo -- Iwata, Makoto -- Eksteen, Bertus -- Song, Si-Young -- Junt, Tobias -- Senman, Balimkiz -- Otipoby, Kevin L -- Yokota, Aya -- Takeuchi, Hajime -- Ricciardi-Castagnoli, Paola -- Rajewsky, Klaus -- Adams, David H -- von Andrian, Ulrich H -- AI-061663/AI/NIAID NIH HHS/ -- G0601816/Medical Research Council/United Kingdom -- HL54936/HL/NHLBI NIH HHS/ -- HL56949/HL/NHLBI NIH HHS/ -- HL62524/HL/NHLBI NIH HHS/ -- R37 AI054636/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2006 Nov 17;314(5802):1157-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CBR Institute for Biomedical Research and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA. mora@cbr.med.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110582" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
B-Lymphocytes/*immunology/secretion
;
Cell Movement
;
Cells, Cultured
;
Chemotaxis, Leukocyte
;
Dendritic Cells/*immunology
;
Immunity, Mucosal
;
Immunoglobulin A/*biosynthesis/immunology
;
Interleukin-5/immunology
;
Interleukin-6/immunology
;
Intestinal Mucosa/immunology
;
Intestines/cytology/*immunology
;
Lymphoid Tissue/cytology/immunology
;
Mice
;
Mice, Inbred C57BL
;
Receptors, Antigen, B-Cell/biosynthesis
;
Tretinoin/immunology
;
Vitamin A/physiology
;
Vitamin A Deficiency/immunology
;
Vitamins/immunology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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