Peripheral nerve extracellular matrix (PN-ECM)

The Peripheral nerve extracellular matrix is the three-dimensional, non-cellular framework that surrounds and supports cells in peripheral nerves. It is composed primarily of fibrous proteins (such as collagens, especially types I and IV, laminin, fibronectin, elastin), proteoglycans (including perlecan, agrin, chondroitin sulfate proteoglycans), glycoproteins (such as tenascin and matrilin 2), and glycosaminoglycans. Synthesized mainly by Schwann cells, the ECM provides both structural integrity and biochemical signals essential for Schwann cell proliferation, migration, and axon regrowth after injury. The ECM's dynamic remodeling determines the success of peripheral nerve repair and is a key focus in regenerative medicine and tissue engineering for nerve injuries. Unlike classical drug targets, the ECM is not a single, well-defined molecule but a critical complex that orchestrates the peripheral nerve's microenvironment and regenerative capacity

Other names

Peripheral nerve ECMNerve extracellular matrixPN-ECMPeripheral nerve matrixEndoneurial matrixSchwann cell extracellular matrix

Not applicable as a pharmacological target; ECM-based nerve grafts and scaffolds exert effect via structural support and signaling cues facilitating nerve regeneration, Schwann cell migration, and axon guidance