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Current Topics on Vitamin D. The effects of vitamin D on the immune system. Kikuta Junichi 1 , Ishii Masaru 2 1Department of Immunology and Cell Biology, Graduate School of Medicine, Osaka University, Japan./Japan Science and Technology Agency, CREST. 2Department of Immunology and Cell Biology, Graduate School of Medicine, Osaka University, Japan./Japan Science and Technology Agency, CREST. pp.359-365
Published Date 2015/2/28
DOI https://doi.org/10.20837/4201503359
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 Various kinds of immune cells-including macrophages, dendritic cells, T cells and B cells- express the vitamin D receptor and 1α-hydroxylase(CYP27B1),the enzyme necessary for the conversion of circulating 25-hydroxyvitamin D into its active form, 1,25-dihydroxyvitamin D. It suggests that vitamin D has a regulatory role on innate and adaptive immune responses. Vitamin D has been recently shown to promote antimicrobial responses through the production of antibacterial peptides, and stimulation of the autophagic activity in macrophages. Recent epidemiological evidence indicates a significant association between vitamin D deficiency and an increased incidence of several infectious diseases.  Here, we review the essential roles of vitamin D in modulating the immune system and discuss the protective effects of vitamin D supplementation in diverse infections.



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電子版ISSN 印刷版ISSN 0917-5857 医薬ジャーナル社

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