Glial Cell Line-Derived Neurotrophic Factor (GDNF) is a potent neurotrophic factor that plays a crucial role in the survival, development, and function of dopaminergic neurons, which are critical in the context of neurodegenerative diseases like Parkinson's disease. It holds therapeutic potential due to its ability to promote neuronal survival and regeneration, making it a target for research in neuroprotection and recovery strategies.