Immunologic Aspects of Multiple Sclerosis

Multiple sclerosis is an inflammatory and degenerative disease of the central nervous system characterized by demyelination and axonal loss. Genetic and environmental factors contribute to the risk of immune dysregulation in multiple sclerosis. The review focuses on the immunopathogenic role played by various lymphocyte subsets and their cytokine products in the onset and disease progression, and the role of regulatory immune cells in disease remission. The mechanism of action of approved and experimental therapies, and how these mechanisms support the immunopathogenesis paradigm, is also reviewed.