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Related Experiment Video

Updated: Jan 11, 2026

Transconjunctival Approach for Injection into the Rat Optic Nerve
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Chiral Nanoagonist Targeting EGFR for Nerve Injury Repair.

Xiaoyu Zhao1, Yue Wang1, Jie Bian1

  • 1Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Science, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China.

Advanced Materials (Deerfield Beach, Fla.)
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Summary

Researchers developed D-Histidine ZnO nanorods to activate EGFR, significantly improving nerve regeneration and functional recovery after nerve injuries. This novel approach offers a promising strategy for treating neurological damage.

Keywords:
EGFRchiral materialnerve regenerationperipheral nerve injuryspinal cord injury

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Area of Science:

  • Biomaterials Science
  • Neuroscience
  • Regenerative Medicine

Background:

  • Nerve injury repair is hindered by limited neuron regeneration.
  • Epidermal growth factor receptor (EGFR) is crucial for nervous system development but underappreciated for nerve repair.
  • Current strategies for nerve regeneration face significant limitations.

Purpose of the Study:

  • To investigate the potential of a chiral nanoagonist, D-Histidine ZnO nanorods (NRs), in promoting nerve regeneration.
  • To explore the mechanism of EGFR activation and downstream signaling pathways in neural cells.
  • To develop and evaluate a novel therapeutic bandage for nerve injury repair.

Main Methods:

  • Synthesis and characterization of D-Histidine ZnO NRs.
  • Activation of EGFR and downstream signaling in three types of neural cells.
  • Development of a biodegradable bandage incorporating D-Histidine ZnO NRs.
  • In vivo testing in sciatic nerve and spinal cord injury models.

Main Results:

  • D-Histidine ZnO NRs effectively activated EGFR, promoting neural cell proliferation, differentiation, and migration.
  • Achieved >85% differentiation rate with neurite length >50 µm.
  • Induced transdifferentiation of Schwann cells into a stem-like phenotype.
  • Demonstrated significant neurorestoration and functional recovery in nerve injury models after 4 weeks.

Conclusions:

  • Chiral nanoagonists targeting EGFR represent a pioneering strategy for nerve regeneration.
  • D-Histidine ZnO NRs show significant therapeutic potential for nerve injury repair.
  • Chirality-dependent regulation of neural cell behavior is a promising avenue for future therapies.