Myelin antigen

Myelin antigens are a group of proteins and lipids that constitute the myelin sheath, a specialized membrane that insulates axons and enables the rapid, saltatory conduction of nerve impulses [13, 22, 24]. Key protein components include Myelin Basic Protein (MBP), Proteolipid Protein (PLP), and Myelin Oligodendrocyte Glycoprotein (MOG), which are essential for the structural integrity and maintenance of the central and peripheral nervous systems [13, 22]. In autoimmune disorders such as Multiple Sclerosis (MS), these antigens become the primary targets of an erroneous immune attack, leading to inflammatory demyelination and subsequent neurological impairment [9, 14, 16]. Therapeutic strategies targeting myelin antigens aim to restore immune tolerance, effectively re-educating the immune system to recognize these proteins as self rather than foreign threats [10, 15, 18]. Drugs like glatiramer acetate act as mimics of these antigens to compete for MHC binding and induce a shift toward anti-inflammatory T-cell responses [1, 2, 5]. Newer investigational therapies, such as ANK-700, utilize liver-targeted delivery of myelin-specific domains to induce long-term tolerance and provide bystander suppression against the broader autoimmune response [15, 20].

Other names

Myelin antigensMyelin-associated antigensCNS myelin proteinsMyelin autoantigens

Induction of antigen-specific immune tolerance, competition for MHC class II binding, T-cell receptor antagonism, and promotion of bystander suppression through Th2 and regulatory T-cell (Treg) differentiation [1, 2, 15].