PMID- 33671896 OWN - NLM STAT- MEDLINE DCOM- 20210423 LR - 20210423 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 22 IP - 4 DP - 2021 Feb 15 TI - Preclinical Therapy with Vitamin D3 in Experimental Encephalomyelitis: Efficacy and Comparison with Paricalcitol. LID - 10.3390/ijms22041914 [doi] LID - 1914 AB - Multiple sclerosis (MS) is a chronic demyelinating disease of the central nervous system (CNS). MS and its animal model called experimental autoimmune encephalomyelitis (EAE) immunopathogenesis involve a plethora of immune cells whose activation releases a variety of proinflammatory mediators and free radicals. Vitamin D3 (VitD) is endowed with immunomodulatory and antioxidant properties that we demonstrated to control EAE development. However, this protective effect triggered hypercalcemia. As such, we compared the therapeutic potential of VitD and paricalcitol (Pari), which is a non-hypercalcemic vitamin D analog, to control EAE. From the seventh day on after EAE induction, mice were injected with VitD or Pari every other day. VitD, but not Pari, displayed downmodulatory ability being able to reduce the recruitment of inflammatory cells, the mRNA expression of inflammatory parameters, and demyelination at the CNS. Lower production of proinflammatory cytokines by lymph node-derived cells and IL-17 by gut explants, and reduced intestinal inflammation were detected in the EAE/VitD group compared to the EAE untreated or Pari groups. Dendritic cells (DCs) differentiated in the presence of VitD developed a more tolerogenic phenotype than in the presence of Pari. These findings suggest that VitD, but not Pari, has the potential to be used as a preventive therapy to control MS severity. FAU - Mimura, Luiza Ayumi Nishiyama AU - Mimura LAN AD - Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Fraga-Silva, Thais Fernanda de Campos AU - Fraga-Silva TFC AUID- ORCID: 0000-0002-2053-8938 AD - Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Oliveira, Larissa Ragozzo Cardoso de AU - Oliveira LRC AD - Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Ishikawa, Larissa Lumi Watanabe AU - Ishikawa LLW AUID- ORCID: 0000-0003-3481-2181 AD - Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Borim, Patricia Aparecida AU - Borim PA AD - Botucatu Medical School, Department of Tropical Diseases and Image Diagnosis, Sao Paulo State University (UNESP), Botucatu 18618-687, Brazil. FAU - Machado, Carla de Moraes AU - Machado CM AD - Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Junior, Jose de Anchieta de Castro E Horta AU - Junior JACEH AUID- ORCID: 0000-0003-3639-9861 AD - Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. FAU - Fonseca, Denise Morais da AU - Fonseca DMD AD - Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo (USP), Sao Paulo 05508-000, Brazil. FAU - Sartori, Alexandrina AU - Sartori A AD - Department of Chemical and Biological Sciences, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu 18618-689, Brazil. LA - eng GR - 2016/23317-8/Fundacao de Amparo a Pesquisa do Estado de Sao Paulo/ GR - 307269/2017-5/Conselho Nacional de Desenvolvimento Cientifico e Tecnologico/ PT - Comparative Study PT - Journal Article DEP - 20210215 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Antioxidants) RN - 0 (Cytokines) RN - 0 (Ergocalciferols) RN - 0 (Immunologic Factors) RN - 1C6V77QF41 (Cholecalciferol) RN - 6702D36OG5 (paricalcitol) SB - IM MH - Animals MH - Antioxidants/*administration & dosage/pharmacology MH - Bone Marrow Cells/drug effects/immunology MH - Cholecalciferol/*administration & dosage/pharmacology MH - Cytokines/metabolism MH - Dendritic Cells/drug effects/immunology MH - Encephalomyelitis, Autoimmune, Experimental/blood/immunology/*prevention & control MH - Ergocalciferols/*administration & dosage/pharmacology MH - Female MH - Immunologic Factors/*administration & dosage/pharmacology MH - Mice MH - Mice, Inbred C57BL MH - Multiple Sclerosis/immunology/prevention & control MH - Post-Exposure Prophylaxis/*methods MH - Severity of Illness Index MH - Signal Transduction/drug effects MH - Treatment Outcome PMC - PMC7918993 OTO - NOTNLM OT - dendritic cells OT - experimental autoimmune encephalomyelitis OT - gut OT - inflammation OT - paricalcitol OT - vitamin D analog OT - vitamin D3 COIS- The authors declare no conflict of interest. EDAT- 2021/03/07 06:00 MHDA- 2021/04/24 06:00 PMCR- 2021/02/15 CRDT- 2021/03/06 01:11 PHST- 2020/12/16 00:00 [received] PHST- 2021/02/04 00:00 [revised] PHST- 2021/02/07 00:00 [accepted] PHST- 2021/03/06 01:11 [entrez] PHST- 2021/03/07 06:00 [pubmed] PHST- 2021/04/24 06:00 [medline] PHST- 2021/02/15 00:00 [pmc-release] AID - ijms22041914 [pii] AID - ijms-22-01914 [pii] AID - 10.3390/ijms22041914 [doi] PST - epublish SO - Int J Mol Sci. 2021 Feb 15;22(4):1914. doi: 10.3390/ijms22041914.