摘要
Schwann cells（SCs）and peripheral nerve regeneration：SCs are the principal glial cells of the peripheral nervous system（PNS）.In a healthy nerve,myelinating SCs wrap around larger caliber motor and sensory axons to form the myelin sheath,whereas non-myelinating SCs envelop and support multiple small diameter sensory axons to form Remak bundles.Moreover,they form a basal lamina which surround each SC-axon unit（Hall,2005）.When a peripheral nerve injury occurs,
Schwann cells（SCs）and peripheral nerve regeneration：SCs are the principal glial cells of the peripheral nervous system（PNS）.In a healthy nerve,myelinating SCs wrap around larger caliber motor and sensory axons to form the myelin sheath,whereas non-myelinating SCs envelop and support multiple small diameter sensory axons to form Remak bundles.Moreover,they form a basal lamina which surround each SC-axon unit（Hall,2005）.When a peripheral nerve injury occurs,
