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J Neurosci Res. 2001 Oct 15;66(2):155-62.

Lovastatin treatment decreases mononuclear cell infiltration into the CNS of Lewis rats with experimental allergic encephalomyelitis.

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Department of Pediatrics and Pathology, Medical University of South Carolina, 171 Ashley Avenue, Charleston, SC 29425, USA.


Mononuclear cell infiltration into the CNS and induction of inflammatory cytokines and iNOS in diseases like multiple sclerosis (MS) and experimental allergic encephalomyelitis (EAE) have been implicated in subsequent disease pathogenesis and progression. We report that Lovastatin treatment blocks the clinical disease and induction of inflammatory cytokines and iNOS in spinal cords of MBP induced EAE rats. A significant number of the infiltrating cells in CNS were ED1+ cells of monocyte/macrophage lineage. To understand the mechanism of efficacy of Lovastatin against EAE, we examined the effect of Lovastatin on the transmigration of mononuclear cells into EAE spinal cord. The data presented here documents that Lovastatin treatment attenuates the transmigration of mononuclear cells possibly by down regulating the expression of LFA-1, a ligand for ICAM, in endothelial-leukocyte interaction. These results indicate that Lovastatin treatment prevents infiltration by mononuclear cells into the CNS of rats induced for EAE, thereby lessening the histological changes and clinical signs and thus ameliorating the disease. These observations indicate that Lovastatin treatment may be of therapeutic value against inflammatory disease process associated with infiltration of activated mononuclear cells into the tissue.

[Indexed for MEDLINE]

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