Genetic and Inflammatory Factors in Parkinson's Disease
Summary
Parkinson’s disease arises from the interplay between inherited genetic predispositions and chronic inflammation within the central nervous system. Mutations and common variants in genes—such as SNCA, LRRK2, GBA, PINK1 and Parkin—alter protein processing pathways, mitochondrial function and lysosomal clearance, thereby increasing neuronal vulnerability. Concurrently, sustained activation of microglia and peripheral immune cells releases pro-inflammatory cytokines, including interleukins and tumour necrosis factors, which exacerbate dopaminergic neuron loss. Oxidative stress further amplifies this injury by generating reactive oxygen species that damage cellular components. Recent advances in high-throughput sequencing and functional assays have elucidated how specific polymorphisms in inflammatory mediators modulate disease penetrance and progression. These insights underpin efforts to stratify patients by genetic and immunological profiles and to develop targeted therapies that address both neurodegenerative and neuroinflammatory mechanisms. The global burden of Parkinson’s disease, projected to rise with ageing populations, emphasises the urgency of integrating genetic screening with biomarkers of inflammation to inform precision medicine strategies.
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Genetic and Inflammatory Factors in Parkinson's Disease publication trend
The graph below shows the total number of articles in genetic and inflammatory factors in parkinson's disease across all publications each year (not limited to Nature Index journals).
Technical terms
Single-nucleotide polymorphism (SNP): A variation at a single nucleotide position in the genome that may influence disease risk.
Cytokine: A small protein released by immune cells that regulates inflammation and cell communication.
Chemokine: A subtype of cytokine that directs the movement of immune cells to sites of inflammation.
Mendelian randomisation: A method using genetic variants as proxies to test for causal relationships between a biomarker and a disease.
Genome-wide association study (GWAS): An analysis that scans the genome for common genetic variants associated with a trait or disease.
Oxidative stress: An imbalance between free radicals and antioxidants, leading to cellular damage.
References
- Quantitative and causal analysis for inflammatory genes and the risk of Parkinson’s disease. Frontiers in Immunology (2023).
- Inflammation-related gene polymorphisms associated with Parkinson’s disease: an updated meta-analysis. Egyptian Journal of Medical Human Genetics (2020).
- Association of Two Polymorphisms in CCL2 With Parkinson's Disease: A Case-Control Study. Frontiers in Neurology (2019).
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