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Updated: Jun 29, 2025

Author Spotlight: Innovative Use of nsPEF to Boost Peripheral Nerve Regeneration
Published on: May 3, 2024
Fas ligand regulate nerve injury and repair by affecting AKT, β-catenin, and NF-κB pathways
Yiyue Zhou1, Yi Yao2, Yumei Feng1
1School of Life Sciences, Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China.
Objective:
To investigate the regulatory effect of Fas-L on the repair and regeneration of peripheral extension injury in rats.
Methods:
This study aimed to explore the effects of Fas-L on apoptosis and axonal regeneration of dorsal root ganglion (DRG) cells in rat peripheral nerve repair and regeneration by using several relevant experimental techniques from the injured nerve animal model, cell biology, and molecular biology.
Results:
The expression level of Fas-L in DRG tissues was significantly down-regulated after sciatic nerve injury. Interference with Fas-L can significantly promote the regeneration of DRG neuronal axons and inhibit apoptosis, while the overexpression of Fas-L is contrary to it. Moreover, Fas-L may play a role in the regulation of DRG function and the repair and regeneration of peripheral nerves in Sprague Dawley (SD) rats by affecting several signaling pathways, such as p-AKT/AKT, β-catenin, and NF-κB.
Conclusion:
Fas-L may have a certain effect on the repair and regeneration of peripheral nerve injury in SD rats, which may provide an experimental basis and a new theoretical basis for the functional reconstruction of peripheral nerves.
Significance Statement:
The expression level of Fas-L in DRG tissues was significantly down-regulated after sciatic nerve injury. Fas-L can significantly promote the regeneration of DRG neuronal axons and inhibit apoptosis. Fas-L may play a role in the regulation of DRG function and the repair and regeneration of peripheral nerves in SD rats by affecting several signaling pathways, such as p-AKT/AKT, β-catenin, and NF-κB. Fas-L may have a certain effect on the repair and regeneration of peripheral nerve injury in SD rats, which may provide an experimental basis and a new theoretical basis for the functional reconstruction of peripheral nerves.
Insights
Fas-L down-regulation after sciatic nerve injury promotes nerve regeneration and inhibits apoptosis in rats. Modulating Fas-L offers potential for peripheral nerve repair and functional reconstruction.
Area of Science:
- Neuroscience
- Molecular Biology
- Regenerative Medicine
Background:
- Peripheral nerve injuries pose significant challenges to functional recovery.
- Understanding the molecular mechanisms regulating nerve repair is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the regulatory role of Fas-L in peripheral nerve repair and regeneration.
- To explore the impact of Fas-L on apoptosis and axonal regeneration in dorsal root ganglion (DRG) cells.
Main Methods:
- Utilized an animal model of sciatic nerve injury in Sprague Dawley (SD) rats.
- Employed cell biology and molecular biology techniques to analyze DRG cells.
- Investigated the effects of manipulating Fas-L expression on nerve regeneration and apoptosis.
Main Results:
- Fas-L expression was significantly downregulated in DRG tissues post-sciatic nerve injury.
- Interference with Fas-L promoted axonal regeneration and inhibited apoptosis.
- Overexpression of Fas-L had the opposite effect, hindering regeneration and promoting apoptosis.
- Fas-L influences DRG function and peripheral nerve repair via signaling pathways including p-AKT/AKT, β-catenin, and NF-κB.
Conclusions:
- Fas-L plays a regulatory role in peripheral nerve injury repair and regeneration in SD rats.
- Modulating Fas-L expression presents a potential therapeutic strategy for functional reconstruction of peripheral nerves.
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