Journal
JOURNAL OF THE NEUROLOGICAL SCIENCES
Volume 311, Issue 1-2, Pages 9-14Publisher
ELSEVIER
DOI: 10.1016/j.jns.2011.06.038
Keywords
Multiple sclerosis; Gene expression; Vit D-3
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Low expression of NR4A gene family members (NR4A1, NR4A3) and 1-alpha, 25-dihydroxyvitamin D-3 receptor (VDR) genes was demonstrated in peripheral blood mononuclear cells (PBMC) of subjects evaluated during the pre-disease state of multiple sclerosis (MS-to-be, MS2b), in patients with clinically isolated syndrome (CIS) during the very early presentation of neurological symptomatology and in relapsing-remitting MS (RRMS) patients. Both NR4A1 and NR4A3 are known to be involved in T-cell receptor-induced apoptosis and are regulated by VDR. We further evaluated the precise implications of apoptosis signaling regulators in relation to MS pathogenesis at the cellular level by studying the effects of 1-alpha, 25-dihydroxyvitamin D-3 (Vit D-3) upon NR4A1 expression. We demonstrated that the low apoptotic level in MS patients was repaired by Vit D-3 mainly through NR4A1 and to a lesser extent thorough BCL2-associated X protein (BAX). These findings prove a role for Vit D-3 as a possible therapeutic intervention in MS patients aimed to activate the repressed apoptosis and enhance better control of the disease. (C) 2011 Elsevier B.V. All rights reserved.
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