Adult neurogenesis dysfunction in Parkinson's disease: Molecular pathology and functional implications

Area of Science:

• Neuroscience
• Regenerative Medicine
• Neurodegenerative Disorders

Background:

• Parkinson's disease (PD) is characterized by alpha-synuclein accumulation and dopamine neuron loss.
• Disrupted adult neurogenesis in key brain regions contributes to PD pathophysiology and deficits.
• The exact link between PD pathogenesis and neurogenesis requires further elucidation.

Purpose of the Study:

• To investigate the multifaceted role of adult neurogenesis in Parkinson's disease.
• To explore factors influencing neurogenesis in PD, including dopaminergic signaling, neurotrophic factors, gut microbiota, neuroinflammation, and gene mutations.
• To review therapeutic strategies for activating endogenous neurogenesis as a PD treatment.

Main Methods:

• Comprehensive literature review of recent studies on neurogenesis and PD.
• Analysis of the impact of various factors on adult neurogenesis in the context of PD.
• Exploration of challenges and future directions for neurogenesis-based therapies.

Main Results:

• Impaired neurogenesis in the subventricular zone, hippocampus, and substantia nigra correlates with PD symptoms.
• Dopaminergic signaling, neurotrophic factors, gut microbiota, neuroinflammation, and gene mutations are implicated in PD-related neurogenesis disruption.
• Activating endogenous neurogenesis presents a promising therapeutic avenue for PD.

Conclusions:

• Neurogenesis plays a critical role in the pathophysiology of Parkinson's disease.
• Targeting endogenous neurogenesis offers a promising regenerative strategy for PD.
• Precise manipulation of neurogenesis holds potential for clinical translation in PD treatment.