Release-Active Antibodies to S100 Protein Can Correct the Course of Experimental Allergic Encephalomyelitis

Objective. To study the efficacy of release-active forms of antibody to S100 protein in an animal model of multiple sclerosis. Materials and methods. The study was performed on 60 female rats aged 12 weeks. Experimental allergic encephalomyelitis was induced by administration of spinal cord homogenate at the base of the tail. Female rats then received intragastric solution of release-active antibodies to S100 protein (Tenoten) at a dose of 2.5 ml/kg/day or distilled water for 30 days. Positive controls received i.m. injections of glatiramer acetate at a dose of 4 mg/kg/day (Copaxone). Results and discussion. Administration of release-active forms of antibody to S100 increased the latent period of disease onset, decreased in peak disease intensity, and compensated for weight loss in the animals, as compared with controls. The effect of the agents was comparable with that of the Copaxone group.

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