Abstract

Glial cell line-derived neurotrophic factor (GDNF) is a potent neurotrophic factor with significant research value due to its profound effects on dopaminergic, cholinergic, and motor neurons. Initially identified for its neuroprotective role in dopaminergic neurons, GDNF has been found to support various neuronal populations and plays a crucial role in neural development, maintenance, and repair. This review provides a comprehensive overview of the molecular characteristics, tissue distribution, physiological function of GDNF and its protective effect on a series of diseases, emphasizing its potential therapeutic applications. Meanwhile, this study discusses the challenges in delivering GDNF across the blood-brain barrier and explores current strategies to enhance its clinical efficacy, including the use of gene therapy and innovative delivery methods. In summary, the review underscores the promise of GDNF as a therapeutic agent for neurodegenerative diseases and nerve injuries, highlighting the need for further research to translate these findings into clinical practice.

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