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- Title
Immunoregulation through 1,25-dihydroxyvitamin D3 and its analogs.
- Authors
May, Ekkehard; Asadullah, Khusru; Zügel, Ulrich
- Abstract
Beyond its effects on bone metabolism, calcium and phosphorus homeostasis, 1,25-dihydroxyvitamin D3 (1,25(OH)(2)D(3), calcitriol) exerts profound effects on the immune system. We here provide an overview over the metabolism, molecular and cellular action of 1,25(OH)(2)D(3) with particular regard to its immunomodulatory function. Effects of 1,25(OH)(2)D(3) on the immune system are manyfold and include suppression of T cell activation, shaping of cytokine secretion patterns, induction of regulatory T cells, modulation of proliferation, and interference with apoptosis. 1,25(OH)(2)D(3) further influences maturation, differentiation, and migration of antigen presenting cells. Altogether, its immunomodulatory potency is comparable to other established immunosuppressants without sharing their typical adverse effects. This profile makes 1,25(OH)(2)D(3) a potential drug for the treatment of immune-mediated diseases. Yet, the major obstacle for its clinical use, its potent calcemic activity, is not overcome to date. The identification or generation of novel vitamin D derivatives with dissociated calcemic and immunomodulatory properties is therefore a major task. Its success might eventually lead to promising drugs for future therapeutic exploitation of a wide array of immune diseases, such as psoriasis, multiple sclerosis, rheumatoid arthritis, systemic lupus erythematosus, and others.
- Publication
Current drug targets. Inflammation and allergy, 2004, Vol 3, Issue 4, p377
- ISSN
1568-010X
- Publication type
Journal Article
- DOI
10.2174/1568010042634596