The vitamin D receptor (VDR) plays a central role in vitamin D metabolism, both as a mediator of biological effects and also as the regulator of vitamin D metabolism.
Most effects of vitamin D are mediated by the binding of 1, 25(OH) 2D to the VDR.
VDR and its ligand have shown relative immunosuppressive and anti-inflammatory role.
Genome-wide association studies (GWAS) suggested more than 20 loci in MS susceptibility, including VDR gene.
The VDR polymorphisms affect its structure and function and it is believed that have a link with an increased risk of MS.