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Related Experiment Video

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Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
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Microtubes with gradient decellularized porcine sciatic nerve matrix from microfluidics for sciatic nerve

Binghui Jin1,2,3, Yunru Yu2,4, Xiangxiang Chen1

  • 1Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, 325035, China.

Bioactive Materials
|October 3, 2022
PubMed
Summary

Researchers developed a novel microtube using decellularized nerve extracellular matrix (ECM) to promote peripheral nerve regeneration. This innovative approach enhances cell growth and axon extension, showing promise for treating nerve injuries.

Keywords:
Extracellular matrixMicrofiberMicrofluidicsNerve regenerationPeripheral nerve injury

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Neuroscience

Background:

  • Peripheral nerve defects pose significant global health challenges.
  • Nerve extracellular matrix (ECM) shows promise in tissue engineering for peripheral nerve injury (PNI).

Purpose of the Study:

  • To develop and evaluate a novel microtube containing gradient decellularized porcine sciatic nerve ECM hydrogel (pDScNM-gel) for peripheral nerve regeneration.

Main Methods:

  • Microfluidics were used to create a gradient pDScNM-gel microtube.
  • In vitro studies assessed cell proliferation, migration, and axon growth of dorsal root ganglions (DRGs).
  • In vivo studies evaluated sciatic nerve regeneration and functional recovery using assembled microtubes within silicon tubes.

Main Results:

  • pDScNM demonstrated a concentration-dependent enhancement of cell proliferation, migration, and axon growth.
  • Co-culture within gradient pDScNM microtubes replicated these positive cellular behaviors.
  • In vivo implantation showed successful sciatic nerve regeneration and functional recovery.

Conclusions:

  • Microtubes incorporating gradient pDScNM are a promising alternative for peripheral nerve defect repair.
  • This technology exhibits significant potential for clinical applications in treating nerve injuries.