Peripheral nerve proteins and membranes

Peripheral nerve proteins and membranes refer to the ensemble of structural and functional proteins (such as PMP22, P0, and P2) and lipid bilayers that comprise the myelin sheath enveloping axons in the peripheral nervous system. These proteins are crucial for the assembly, stability, and function of the myelin membrane, which enables rapid electrical signal conduction. Mutations in major peripheral nerve proteins can result in hereditary neuropathies such as Charcot-Marie-Tooth disease and other demyelinating disorders. Peripheral nerve membranes also feature specialized transport and adhesion molecules and present unique barriers to drug delivery, making them therapeutic targets in inherited and acquired nerve injuries.

Other names

Peripheral myelin protein 22 (PMP22)Myelin protein P0Peripheral myelin protein 2 (P2)Schwann cell myelin proteinsMyelin sheath proteins

Mechanism of action can involve stabilization of protein folding (e.g., for PMP22 in CMT), modulation of membrane cholesterol and lipid composition, facilitation of nerve regeneration often via growth factor signaling, and barrier modulation to enhance drug delivery (e.g., via claudin-1 manipulation for analgesics to peripheral nerves).