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.
This review explores immunomodulatory nerve conduits for peripheral nerve injury (PNI) repair. It highlights natural and synthetic materials
Area of Science:
- Biomaterials Science
- Immunology
- Regenerative Medicine
Background:
- Peripheral nerve injury (PNI) presents significant clinical challenges and socioeconomic burdens.
- Current autologous nerve grafting methods are limited by donor availability and surgical risks.
- Tissue-engineered nerve conduits are a promising alternative for PNI repair.
Purpose of the Study:
- To systematically review recent advancements in immunomodulatory nerve conduits for PNI.
- To analyze the role of natural and synthetic materials in regulating macrophage polarization.
- To discuss the potential of composite materials and future trends in nerve conduit technology.
Main Methods:
- Comprehensive literature review of immunomodulatory nerve conduits.
- Analysis of biological properties and degradation mechanisms of various biomaterials.
- Focus on materials influencing macrophage polarization for PNI repair.
Main Results:
- Natural (collagen, chitosan, silk fibroin) and synthetic (PLGA, PLA, PCL) materials modulate macrophage polarization.
- Composite materials offer synergistic improvements in mechanical and bioactive properties.
- Emerging technologies like 4D printing and smart systems show future therapeutic potential.
Conclusions:
- Immunomodulatory nerve conduits, utilizing diverse materials, are advancing PNI treatment.
- Optimizing material properties and incorporating novel technologies are key for clinical translation.
- This review provides a framework for developing next-generation nerve repair strategies.
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