It is believed that auto-inflammatory activity, including cellular and humoral immunity responses, especially T cell-B cell collaboration, is one of the most important components of the pathogenesis of inflammatory demyelinating disease. CD40L is critical for T cell-B cell collaboration. Actually, serum CD40L levels have been shown to increase in MS. In the present study, serum CD40L levels were measured by an enzyme-linked immunosorbent assay (ELISA) in NMO (n=27) and MS (n=19) patients and controls (n=14). We revealed elevation of CD40L in NMO patients, and discovered a correlation between CD40L and humoral immunity in inflammatory demyelinating disease.
Keywords: CD40L; Multiple sclerosis; Neuromyelitis optica; Serum.
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