PMID- 20193022 OWN - NLM STAT- MEDLINE DCOM- 20100520 LR - 20131121 IS - 1600-065X (Electronic) IS - 0105-2896 (Linking) VI - 234 IP - 1 DP - 2010 Mar TI - Langerin-expressing dendritic cells in gut-associated lymphoid tissues. PG - 233-46 LID - 10.1111/j.0105-2896.2009.00878.x [doi] AB - Dendritic cells (DCs) are key regulators of the immune system. They act as professional antigen-presenting cells and are capable of activating naive T cells and stimulating the growth and differentiation of B cells. According to their molecular expression, DCs can be divided into several subsets with different functions. We focus on DC subsets expressing langerin, a C-type lectin. Langerin expression is predominant in skin DCs, but langerin-expressing DCs also exist in mucosal tissue and can be induced by immunization and sometimes by nutrient deficiency. Topical transcutaneous immunization induces langerin(+)CD8 alpha(-) DCs in mesenteric lymph nodes (MLNs), which mediate the production of antigen-specific immunoglobulin A antibody in the intestine. Yet, in one recent study, langerin(+) DCs were generated in gut-associated lymphoid tissue and contributed to the suppressive intestinal immune environment in the absence of retinoic acid. In this review, we focus on the phenotypic and functional characteristics of langerin(+) DCs in the mucosal tissues, especially MLNs. FAU - Chang, Sun-Young AU - Chang SY AD - Mucosal Immunology Section, Laboratory Science Division, International Vaccine Institute, Seoul, Korea. FAU - Kweon, Mi-Na AU - Kweon MN LA - eng PT - Journal Article PT - Review PL - England TA - Immunol Rev JT - Immunological reviews JID - 7702118 RN - 0 (Antigens, CD) RN - 0 (Antigens, Surface) RN - 0 (CD207 protein, human) RN - 0 (Cd207 protein, mouse) RN - 0 (Immunoglobulin A) RN - 0 (Lectins, C-Type) RN - 0 (Mannose-Binding Lectins) RN - 1C6V77QF41 (Cholecalciferol) RN - 5688UTC01R (Tretinoin) SB - IM MH - Animals MH - Antibody Formation MH - Antigens, CD/*immunology MH - Antigens, Surface/*immunology MH - CD4-Positive T-Lymphocytes/immunology MH - Cholecalciferol/immunology MH - Dendritic Cells/*immunology MH - Humans MH - Immunoglobulin A/biosynthesis MH - Langerhans Cells/immunology MH - Lectins, C-Type/*immunology MH - Lymph Nodes/cytology/*immunology MH - Mannose-Binding Lectins/*immunology MH - Mice MH - Peyer's Patches/cytology/*immunology MH - Phenotype MH - Signal Transduction MH - Tretinoin/immunology RF - 88 EDAT- 2010/03/03 06:00 MHDA- 2010/05/21 06:00 CRDT- 2010/03/03 06:00 PHST- 2010/03/03 06:00 [entrez] PHST- 2010/03/03 06:00 [pubmed] PHST- 2010/05/21 06:00 [medline] AID - IMR878 [pii] AID - 10.1111/j.0105-2896.2009.00878.x [doi] PST - ppublish SO - Immunol Rev. 2010 Mar;234(1):233-46. doi: 10.1111/j.0105-2896.2009.00878.x.