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Neuronal DJ-1 regulates microglial activation in Parkinson's disease
Aonan Zhao1, Yanfei Ding1, Min Zhong1
1Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to the Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Neural Regeneration Research
|March 27, 2025
Abstract
No abstract available in PubMed .
Insights
DJ-1 (Parkinson's disease protein 7) protects neurons by regulating microglia communication via CX3CL1. Restoring this pathway may offer new Parkinson's disease therapies.
Area of Science:
- Neuroscience
- Molecular Biology
- Immunology
Background:
- DJ-1 (Parkinson's disease protein 7) is crucial for neuroprotection and oxidative stress regulation.
- Its role in Parkinson's disease neuroinflammation and microglia-neuron communication is not fully understood.
Purpose of the Study:
- To investigate DJ-1's role in microglia-neuron communication.
- To identify therapeutic targets for Parkinson's disease neuroinflammation.
Main Methods:
- Utilized Park7 knockout mice and Park7 knockdown SH-SY5Y cells.
- Performed protein microarray analysis and validated with GEO datasets.
- Assessed the impact of DJ-1 deficiency on CX3CL1 processing and microglial activation.
Main Results:
- Park7 deficiency decreased CX3CL1, monocyte chemoattractant protein-1, and interleukin-8 levels.
- Reduced ADAM10 processing in Park7-deficient models led to lower CX3CL1 secretion.
- This resulted in pro-inflammatory M1 microglial activation, which was reversed by exogenous CX3CL1.
Conclusions:
- DJ-1 protects dopaminergic neurons by suppressing microglial activation via CX3CL1 regulation.
- The DJ-1/CX3CL1 axis is a potential therapeutic target for Parkinson's disease neuroinflammation.
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