Gene expression analysis suggests that 1,25-dihydroxyvitamin D3 reverses experimental autoimmune encephalomyelitis by stimulating inflammatory cell apoptosis

1 Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53706 2 Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706 3 Department of Horticulture and Statistics, University of Wisconsin-Madison, Madison, Wisconsin 53706 4 Department...

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Veröffentlicht in:Physiological genomics 2004-07, Vol.18 (2), p.141-151
Hauptverfasser: Spach, Karen M, Pedersen, Laura B, Nashold, Faye E, Kayo, Tsuyoshi, Yandell, Brian S, Prolla, Tomas A, Hayes, Colleen E
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container_end_page 151
container_issue 2
container_start_page 141
container_title Physiological genomics
container_volume 18
creator Spach, Karen M
Pedersen, Laura B
Nashold, Faye E
Kayo, Tsuyoshi
Yandell, Brian S
Prolla, Tomas A
Hayes, Colleen E
description 1 Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53706 2 Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706 3 Department of Horticulture and Statistics, University of Wisconsin-Madison, Madison, Wisconsin 53706 4 Department of Genetics and Medical Genetics, University of Wisconsin-Madison, Madison, Wisconsin 53706 Multiple sclerosis (MS) is a debilitating autoimmune disease of the central nervous system (CNS) that develops in genetically susceptible individuals who are exposed to undefined environmental risk factors. Epidemiological, genetic, and biological evidence suggests that insufficient vitamin D may be an MS risk factor. However, little is known about how vitamin D might be protective in MS. We hypothesized that 1,25-dihydroxyvitamin D 3 [1,25-(OH) 2 D 3 ] might regulate gene expression patterns in a manner that would resolve inflammation. To test this hypothesis, experimental autoimmune encephalomyelitis (EAE) was induced in mice, 1,25-(OH) 2 D 3 or a placebo was administered, and 6 h later, DNA microarray hybridization was performed with spinal cord RNA to analyze the gene expression patterns. At this time, clinical, histopathological, and biological studies showed that the two groups did not differ in EAE disease, but changes in several 1,25-(OH) 2 D 3 -responsive genes indicated that the 1,25-(OH) 2 D 3 had reached the CNS. Compared with normal mice, placebo-treated mice with EAE showed increased expression of many immune system genes, confirming the acute inflammation. When 1,25-(OH) 2 D 3 was administered, several genes like glial fibrillary acidic protein and eukaryotic initiation factor 2 kinase 4, whose expression increased or decreased with EAE, returned to homeostatic levels. Also, two genes with pro-apoptotic functions, calpain-2 and caspase-8-associated protein, increased significantly. A terminal deoxynucleotidyl transferase-mediated dUTP nicked end labeling study detected increased nuclear fragmentation in the 1,25-(OH) 2 D 3 -treated samples, confirming increased apoptosis. Together, these results suggest that sensitization of inflammatory cells to apoptotic signals may be one mechanism by which the 1,25-(OH) 2 D 3 resolved EAE. vitamin D; multiple sclerosis; autoimmune disease; DNA microarray
doi_str_mv 10.1152/physiolgenomics.00003.2004
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Epidemiological, genetic, and biological evidence suggests that insufficient vitamin D may be an MS risk factor. However, little is known about how vitamin D might be protective in MS. We hypothesized that 1,25-dihydroxyvitamin D 3 [1,25-(OH) 2 D 3 ] might regulate gene expression patterns in a manner that would resolve inflammation. To test this hypothesis, experimental autoimmune encephalomyelitis (EAE) was induced in mice, 1,25-(OH) 2 D 3 or a placebo was administered, and 6 h later, DNA microarray hybridization was performed with spinal cord RNA to analyze the gene expression patterns. At this time, clinical, histopathological, and biological studies showed that the two groups did not differ in EAE disease, but changes in several 1,25-(OH) 2 D 3 -responsive genes indicated that the 1,25-(OH) 2 D 3 had reached the CNS. Compared with normal mice, placebo-treated mice with EAE showed increased expression of many immune system genes, confirming the acute inflammation. When 1,25-(OH) 2 D 3 was administered, several genes like glial fibrillary acidic protein and eukaryotic initiation factor 2 kinase 4, whose expression increased or decreased with EAE, returned to homeostatic levels. Also, two genes with pro-apoptotic functions, calpain-2 and caspase-8-associated protein, increased significantly. A terminal deoxynucleotidyl transferase-mediated dUTP nicked end labeling study detected increased nuclear fragmentation in the 1,25-(OH) 2 D 3 -treated samples, confirming increased apoptosis. 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Epidemiological, genetic, and biological evidence suggests that insufficient vitamin D may be an MS risk factor. However, little is known about how vitamin D might be protective in MS. We hypothesized that 1,25-dihydroxyvitamin D 3 [1,25-(OH) 2 D 3 ] might regulate gene expression patterns in a manner that would resolve inflammation. To test this hypothesis, experimental autoimmune encephalomyelitis (EAE) was induced in mice, 1,25-(OH) 2 D 3 or a placebo was administered, and 6 h later, DNA microarray hybridization was performed with spinal cord RNA to analyze the gene expression patterns. At this time, clinical, histopathological, and biological studies showed that the two groups did not differ in EAE disease, but changes in several 1,25-(OH) 2 D 3 -responsive genes indicated that the 1,25-(OH) 2 D 3 had reached the CNS. Compared with normal mice, placebo-treated mice with EAE showed increased expression of many immune system genes, confirming the acute inflammation. When 1,25-(OH) 2 D 3 was administered, several genes like glial fibrillary acidic protein and eukaryotic initiation factor 2 kinase 4, whose expression increased or decreased with EAE, returned to homeostatic levels. Also, two genes with pro-apoptotic functions, calpain-2 and caspase-8-associated protein, increased significantly. A terminal deoxynucleotidyl transferase-mediated dUTP nicked end labeling study detected increased nuclear fragmentation in the 1,25-(OH) 2 D 3 -treated samples, confirming increased apoptosis. 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derivatives</topic><topic>Vitamin D - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Spach, Karen M</creatorcontrib><creatorcontrib>Pedersen, Laura B</creatorcontrib><creatorcontrib>Nashold, Faye E</creatorcontrib><creatorcontrib>Kayo, Tsuyoshi</creatorcontrib><creatorcontrib>Yandell, Brian S</creatorcontrib><creatorcontrib>Prolla, Tomas A</creatorcontrib><creatorcontrib>Hayes, Colleen E</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Physiological genomics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Spach, Karen M</au><au>Pedersen, Laura B</au><au>Nashold, Faye E</au><au>Kayo, Tsuyoshi</au><au>Yandell, Brian S</au><au>Prolla, Tomas A</au><au>Hayes, Colleen E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Gene expression analysis suggests that 1,25-dihydroxyvitamin D3 reverses experimental autoimmune encephalomyelitis by stimulating inflammatory cell apoptosis</atitle><jtitle>Physiological genomics</jtitle><addtitle>Physiol Genomics</addtitle><date>2004-07-08</date><risdate>2004</risdate><volume>18</volume><issue>2</issue><spage>141</spage><epage>151</epage><pages>141-151</pages><issn>1094-8341</issn><eissn>1531-2267</eissn><abstract>1 Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53706 2 Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706 3 Department of Horticulture and Statistics, University of Wisconsin-Madison, Madison, Wisconsin 53706 4 Department of Genetics and Medical Genetics, University of Wisconsin-Madison, Madison, Wisconsin 53706 Multiple sclerosis (MS) is a debilitating autoimmune disease of the central nervous system (CNS) that develops in genetically susceptible individuals who are exposed to undefined environmental risk factors. Epidemiological, genetic, and biological evidence suggests that insufficient vitamin D may be an MS risk factor. However, little is known about how vitamin D might be protective in MS. We hypothesized that 1,25-dihydroxyvitamin D 3 [1,25-(OH) 2 D 3 ] might regulate gene expression patterns in a manner that would resolve inflammation. To test this hypothesis, experimental autoimmune encephalomyelitis (EAE) was induced in mice, 1,25-(OH) 2 D 3 or a placebo was administered, and 6 h later, DNA microarray hybridization was performed with spinal cord RNA to analyze the gene expression patterns. At this time, clinical, histopathological, and biological studies showed that the two groups did not differ in EAE disease, but changes in several 1,25-(OH) 2 D 3 -responsive genes indicated that the 1,25-(OH) 2 D 3 had reached the CNS. Compared with normal mice, placebo-treated mice with EAE showed increased expression of many immune system genes, confirming the acute inflammation. When 1,25-(OH) 2 D 3 was administered, several genes like glial fibrillary acidic protein and eukaryotic initiation factor 2 kinase 4, whose expression increased or decreased with EAE, returned to homeostatic levels. Also, two genes with pro-apoptotic functions, calpain-2 and caspase-8-associated protein, increased significantly. A terminal deoxynucleotidyl transferase-mediated dUTP nicked end labeling study detected increased nuclear fragmentation in the 1,25-(OH) 2 D 3 -treated samples, confirming increased apoptosis. Together, these results suggest that sensitization of inflammatory cells to apoptotic signals may be one mechanism by which the 1,25-(OH) 2 D 3 resolved EAE. vitamin D; multiple sclerosis; autoimmune disease; DNA microarray</abstract><cop>United States</cop><pub>Am Physiological Soc</pub><pmid>15138306</pmid><doi>10.1152/physiolgenomics.00003.2004</doi><tpages>11</tpages></addata></record>
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subjects Animals
Apoptosis - physiology
Astrocytes - chemistry
Astrocytes - metabolism
CD4-Positive T-Lymphocytes - chemistry
CD4-Positive T-Lymphocytes - metabolism
Central Nervous System - chemistry
Central Nervous System - metabolism
Central Nervous System - pathology
Disease Models, Animal
Encephalomyelitis, Autoimmune, Experimental - genetics
Encephalomyelitis, Autoimmune, Experimental - metabolism
Encephalomyelitis, Autoimmune, Experimental - pathology
Gene Expression Profiling - methods
Gene Expression Regulation - genetics
Gene Expression Regulation - physiology
Lymphocytes - chemistry
Lymphocytes - metabolism
Lymphocytes - physiology
Macrophages - chemistry
Macrophages - metabolism
Macrophages - physiology
Male
Mice
Mice, Inbred C57BL
Spinal Cord - pathology
T-Lymphocyte Subsets - chemistry
T-Lymphocyte Subsets - metabolism
Vitamin D - analogs & derivatives
Vitamin D - physiology
title Gene expression analysis suggests that 1,25-dihydroxyvitamin D3 reverses experimental autoimmune encephalomyelitis by stimulating inflammatory cell apoptosis
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