Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?

Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system and is caused by an aberrant immune response to myelin sheath. Disease-modifying medications, which mainly aim to suppress such aberrant immune response, have significantly improved MS treatment. However, the di...

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Main Authors: Samiksha Wasnik, Isha Sharma, David J. Baylink, Xiaolei Tang
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/9/3102
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author Samiksha Wasnik
Isha Sharma
David J. Baylink
Xiaolei Tang
author_facet Samiksha Wasnik
Isha Sharma
David J. Baylink
Xiaolei Tang
author_sort Samiksha Wasnik
collection DOAJ
description Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system and is caused by an aberrant immune response to myelin sheath. Disease-modifying medications, which mainly aim to suppress such aberrant immune response, have significantly improved MS treatment. However, the disease severity continues to worsen. In contrast, progressively more data suggest that 1,25-dihydroxyvitamin D or 1,25(OH)<sub>2</sub>D, i.e., the active vitamin D, suppresses the differentiation of potentially pathogenic T cells associated with MS, enhances the differentiation of regulatory T cells that suppress the pathogenic T cells, and promotes remyelination. These novel 1,25(OH)<sub>2</sub>D functions have encouraged investigators to develop vitamin D as a potential therapy for MS. However, because of the hypercalcemia that is associated with high 1,25(OH)<sub>2</sub>D concentrations, supplementation of native vitamin D has been a major focus in clinical trials for the treatment of MS, but such trials have produced mixed data. In this article, we will review current progress in the supplementation of different vitamin D forms for the treatment of experimental autoimmune encephalomyelitis (i.e., an MS animal model) as well as MS. Furthermore, we will review alternative strategies that our laboratory and others are pursuing in an attempt to circumvent the hurdles that are hampering the effective use of vitamin D as a potential therapy for MS.
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spelling doaj.art-210edd193aaa454e96d2286d7ab91ec92023-11-19T22:59:05ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-04-01219310210.3390/ijms21093102Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?Samiksha Wasnik0Isha Sharma1David J. Baylink2Xiaolei Tang3Division of Regenerative Medicine, Department of Medicine, Loma Linda University, Loma Linda, CA 92350, USADepartment of Pathology & Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USADivision of Regenerative Medicine, Department of Medicine, Loma Linda University, Loma Linda, CA 92350, USADepartment of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, NY 11548, USAMultiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system and is caused by an aberrant immune response to myelin sheath. Disease-modifying medications, which mainly aim to suppress such aberrant immune response, have significantly improved MS treatment. However, the disease severity continues to worsen. In contrast, progressively more data suggest that 1,25-dihydroxyvitamin D or 1,25(OH)<sub>2</sub>D, i.e., the active vitamin D, suppresses the differentiation of potentially pathogenic T cells associated with MS, enhances the differentiation of regulatory T cells that suppress the pathogenic T cells, and promotes remyelination. These novel 1,25(OH)<sub>2</sub>D functions have encouraged investigators to develop vitamin D as a potential therapy for MS. However, because of the hypercalcemia that is associated with high 1,25(OH)<sub>2</sub>D concentrations, supplementation of native vitamin D has been a major focus in clinical trials for the treatment of MS, but such trials have produced mixed data. In this article, we will review current progress in the supplementation of different vitamin D forms for the treatment of experimental autoimmune encephalomyelitis (i.e., an MS animal model) as well as MS. Furthermore, we will review alternative strategies that our laboratory and others are pursuing in an attempt to circumvent the hurdles that are hampering the effective use of vitamin D as a potential therapy for MS.https://www.mdpi.com/1422-0067/21/9/3102multiple sclerosisexperimental autoimmune encephalomyelitisvitamin D1,25(OH)<sub>2</sub>Dhypercalcemia
spellingShingle Samiksha Wasnik
Isha Sharma
David J. Baylink
Xiaolei Tang
Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
International Journal of Molecular Sciences
multiple sclerosis
experimental autoimmune encephalomyelitis
vitamin D
1,25(OH)<sub>2</sub>D
hypercalcemia
title Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
title_full Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
title_fullStr Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
title_full_unstemmed Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
title_short Vitamin D as a Potential Therapy for Multiple Sclerosis: Where Are We?
title_sort vitamin d as a potential therapy for multiple sclerosis where are we
topic multiple sclerosis
experimental autoimmune encephalomyelitis
vitamin D
1,25(OH)<sub>2</sub>D
hypercalcemia
url https://www.mdpi.com/1422-0067/21/9/3102
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AT davidjbaylink vitamindasapotentialtherapyformultiplesclerosiswherearewe
AT xiaoleitang vitamindasapotentialtherapyformultiplesclerosiswherearewe