| Literature DB >> 18711435 |
Hekla Sigmundsdottir1, Eugene C Butcher.
Abstract
Lymphocytes are imprinted during activation with trafficking programs (combinations of adhesion and chemoattractant receptors) that target their migration to specific tissues and microenvironments. Cytokines contribute, but, for gut and skin, evolution has cleverly adapted external cues from food (vitamin A) and sunlight (ultraviolet-induced vitamin D3) to imprint lymphocyte homing to the small intestines and T cell migration into the epidermis. Dendritic cells are essential: they process the vitamins to their active metabolites (retinoic acid and 1,25(OH)(2)D3) for presentation with antigen to lymphocytes, and they help export environmental cues through lymphatics to draining lymph nodes, to program the trafficking and effector functions of naive T and B cells.Entities:
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Year: 2008 PMID: 18711435 PMCID: PMC3171274 DOI: 10.1038/ni.f.208
Source DB: PubMed Journal: Nat Immunol ISSN: 1529-2908 Impact factor: 25.606