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  • Title: Therapeutic potential of experimental autoimmune encephalomyelitis by Fasudil, a Rho kinase inhibitor.
    Author: Yu JZ, Ding J, Ma CG, Sun CH, Sun YF, Lu CZ, Xiao BG.
    Journal: J Neurosci Res; 2010 Jun; 88(8):1664-72. PubMed ID: 20077431.
    Abstract:
    The migration of aberrant inflammatory cells into the central nervous system plays an important role in the pathogenesis of demyelinating diseases potentially through the Rho/Rho-kinase (Rock) pathway, but direct evidence from human and animal models remains inadequate. Here we further confirm that Fasudil, a selective Rock inhibitor, has therapeutic potential in a mouse model of myelin oligodendrocyte glycoprotein (MOG)-induced experimental autoimmune encephalomyelitis (EAE). The results show that Fasudil decreased the development of EAE in C57BL/6 mice. Immunohistochemistry disclosed that expression of Rock-II in the perivascular spaces and vascular endothelial cells of spleens, spinal cords, and brains was elevated in EAE and was inhibited in the Fasudil-treated group. T-cell proliferation specific to MOG(35-55) was markedly reduced, together with a significant down-regulation of interleukin (IL)-17, IL-6, and MCP-1. In contrast, secretion of IL-4 was increased, and IL-10 was slightly elevated. There were no differences in the percentages of CD4(+)CD25(+), CD8(+)CD28(-), and CD8(+)CD122(+) in mononuclear cells. Histological staining disclosed a marked decrease of inflammatory cells in spinal cord and brain of Fasudil-treated mice. These results, together with previous studies showing the inhibitory effect of Fasudil on T-cell migration, might expand its clinical application as a new therapy for multiple sclerosis by decreasing cell migration and regulating immune balance.
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