Department of Tissue Engineering of Intelligent Medicine Medical University Province;
The VIP Department and Hospital of Stomatology Provincial Key Laboratory of Oral Diseases Medical University Province;
Department of Oncology Hospital Academy of Medical Sciences&Peking Union Medical College;
Department of Neurosurgery University School of Medicine;
NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial&Institute of Regulatory Science for Medical Device&National Engineering Research Center for Biomaterials University Province;
cdkn1b; miR-221; miR-338; miRNA; nerve regeneration; Nrp1; peripheral nerve injury; regulation; Schwann cells; sequential expression;