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Related Experiment Video

Updated: Apr 1, 2026

Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
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Decellularized matrix grafts and peripheral nerve regeneration.

Qin Zhang1, Xingyu Liu1, Ye Zhu2,3

  • 1Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Medical School of Nantong University, Nantong University, Nantong, Jiangsu Province, China.

Neural Regeneration Research
|March 31, 2026
PubMed
Summary

Decellularized extracellular matrix grafts offer a promising solution for peripheral nerve repair, overcoming limitations of traditional methods. These grafts support nerve regeneration by recreating a conducive microenvironment and can be engineered for drug delivery.

Keywords:
biological cuesbiological scaffolddecellularizationdecellularized extracellular matrix graftdecellularized tissueextracellular matrixnerve repair and regenerationperipheral nerve injuryregenerative medicinetissue engineering

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Neuroscience

Background:

  • Traditional nerve repair methods like autologous and allogeneic grafts face significant challenges including donor site morbidity, immune rejection, and limited availability.
  • Peripheral nerve injury (PNI) necessitates advanced therapeutic strategies to overcome limitations in axonal survival, regeneration capacity, microenvironment support, and target organ maintenance.

Purpose of the Study:

  • To comprehensively review the mechanisms of peripheral nerve injury and regeneration.
  • To analyze contemporary therapeutic strategies, with a focus on decellularized extracellular matrix (dECM)-based grafts.
  • To evaluate the potential of dECM grafts in enhancing functional neural regeneration.

Main Methods:

  • Comprehensive literature review analyzing key mechanisms in peripheral nerve injury and regeneration.
  • Focus on contemporary therapeutic strategies including axonal apoptosis inhibition, enhanced intrinsic regenerative capacity, regenerative microenvironment construction, and prevention of target organ atrophy.
  • Analysis of dECM grafts' role as nerve conduits, scaffolds, hydrogels, and 3D printing inks.

Main Results:

  • dECM grafts effectively recreate the neural microenvironment, promoting host cell remodeling and enhancing nerve regeneration.
  • dECM grafts support nerve cell migration, proliferation, and differentiation by providing physical, chemical, and mechanical cues.
  • dECM grafts demonstrate advantages in regulating Schwann cell activity, improving the neural microenvironment, reducing inflammation, and promoting angiogenesis; they can also serve as drug carriers.

Conclusions:

  • dECM grafts represent a highly promising alternative to traditional nerve repair methods, offering significant potential for functional neural regeneration.
  • Limitations such as immunogenic residues, suboptimal mechanical properties, and variability require further research for optimization.
  • Future research should focus on improving dECM graft processing, mechanical strength, immunogenicity, biocompatibility, and exploring applications in complex injuries like diabetic neuropathy.