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Axonal Regeneration: Underlying Molecular Mechanisms and Potential Therapeutic Targets
Rabia Akram1, Haseeb Anwar1, Muhammad Shahid Javed2
1Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan.
Biomedicines
|December 23, 2022
Summary
Peripheral nerve axons regenerate, but central nervous system axons do not. This review explores molecular pathways and targets for enhancing axonal regeneration after nerve injury.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Molecular Biology
Background:
- Peripheral nervous system (PNS) axons regenerate after injury, unlike central nervous system (CNS) axons.
- Axonal regrowth is crucial for recovery from spinal cord, brain, and peripheral nerve damage.
- Intrinsic factors like proteomic profile and signaling pathways differentiate regenerative capacities between CNS and PNS axons.
Purpose of the Study:
- To review the molecular mechanisms underlying axonal regeneration.
- To identify key molecular pathways and players involved in nerve repair.
- To highlight potential therapeutic targets for promoting axonal healing.
Main Methods:
- Literature review of molecular pathways and cellular components involved in axonal regeneration.
- Analysis of factors inhibiting and promoting nerve repair.
- Identification of signaling pathways activated post-nerve injury.
Main Results:
- Identified key molecular pathways including cAMP, MAPK, JAK/STAT, and RhoA/ROCK.
- Highlighted the roles of growth factors, microRNAs, and astrocytes in regeneration.
- Noted inhibitory factors such as glial scars and myelin-associated molecules.
Conclusions:
- Understanding molecular pathways is essential for developing strategies to enhance axonal regeneration.
- Targeting specific pathways and molecules offers potential for therapeutic intervention.
- Further research can bridge knowledge gaps and improve nerve injury recovery.
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