Monday February 19th 2018

Investigation of immune and CNS-mediated effects of fingolimod in the focal delayed-type hypersensitivity multiple sclerosis model.

We examined the effect of fingolimod (0.1 and 0.3 mg/kg/day orally) on blood-brain barrier (BBB) function, demyelination and leukocyte recruitment at different stages of the focal delayed-type hypersensitivity (DTH) multiple sclerosis model in Lewis rats using immunohistochemistry and gadolinium (Gd)-enhancing magnetic resonance imaging (MRI). During DTH lesion formation, fingolimod reduced BBB breakdown (52%; p = 0.05), and lymphocyte (53%; p = 0.016) and macrophage/activated microglia (49%; p = 0.002) recruitment to the DTH lesion compared with vehicle-treated controls. Following DTH lesion establishment, fingolimod reduced the area of BBB breakdown (75%; p = 0.04), lymphocyte recruitment to the DTH lesion (41%; p = 0.01) and activated microglia outside of the lesion core (p …

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Investigation of immune and CNS-mediated effects of fingolimod in the focal delayed-type hypersensitivity multiple sclerosis model.

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