Research progress on composite nerve guidance conduits with immune-regulatory functions
Shuxuan Zhang1, Xinyue Sun1, Xuewa Yang1
1Key Laboratory of Neuroregeneration of Jiangsu and the Ministry of Education, Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, Nantong University, Nantong, China.
Abstract:
Peripheral nerve injury (PNI) has emerged as a critical clinical challenge due to its high disability rate and socioeconomic burden. Traditional autologous nerve grafting, limited by donor shortages and risks of secondary surgeries, has driven tissue-engineered nerve conduits to become a research hotspot. This review systematically summarizes recent advances in immunomodulatory nerve conduits, focusing on the biological properties, degradation mechanisms, and pivotal roles of natural materials (e.g., collagen, chitosan, silk fibroin) and synthetic materials (e.g., poly (lactic-co-glycolic acid) (PLGA), polylactic acid (PLA), and polycaprolactone (PCL) in regulating macrophage polarization. The potential of composite materials to synergistically optimize mechanical performance and bioactivity of nerve conduits is also discussed. Furthermore, this review envisions future trends in nerve conduits, including the integration of 4D printing, smart-responsive systems, and personalized designs to overcome current therapeutic limitations. By integrating multidisciplinary perspectives from materials science, immunology, and regenerative medicine, this review aims to provide innovative theoretical frameworks and technical pathways for efficiently repairing PNI, advancing clinical translation.
More Related Videos
08:05Transplantation of Schwann Cells Inside PVDF-TrFE Conduits to Bridge Transected Rat Spinal Cord Stumps to Promote Axon Regeneration Across the Gap
Published on: November 3, 2017
10:35Fabrication of the Composite Regenerative Peripheral Nerve Interface C-RPNI in the Adult Rat
Published on: February 25, 2020
Related Concept Videos
Peripheral Nervous System: Ganglia and Nerves
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
Immune Surveillance by NK Cells and Phagocytes
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Inflammatory Response
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
