ArticleJournal of Parkinson's disease2023
Distinct Patterns of Gene Expression Changes in the Colon and Striatum of Young Mice Overexpressing Alpha-Synuclein Support Parkinson's Disease as a Multi-System Process.
Article in Journal of Parkinson's disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- Novel Insights Into the Association Between Parkinson's Disease and Constipation: Role of SHMT2 as a Promising Biomarker.CNS neuroscience & therapeutics · 2026Article
- Article
- The gut microbiome promotes mitochondrial respiration in the brain of a Parkinson's disease mouse model.NPJ Parkinson's disease · 2025Article
- α-synuclein overexpression and the microbiome shape the gut and brain metabolome in mice.NPJ Parkinson's disease · 2024Article
- α-Synuclein Overexpression and the Microbiome Shape the Gut and Brain Metabolome in Mice.bioRxiv : the preprint server for biology · 2024Article
- Identification of driving genes of familial adenomatous polyposis by differential gene expression analysis and weighted gene co-expression network analysis.Technology and health care : official journal of the European Society for Engineering and Medicine · 2024Article
Corrections and comments
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Authors and funding
17 authors at 1 institution in 1 country.
Funding
Abstract
backgroundEvidence supports a role for the gut-brain axis in Parkinson's disease (PD). Mice overexpressing human wild type α- synuclein (Thy1-haSyn) exhibit slow colonic transit prior to motor deficits, mirroring prodromal constipation in PD. Identifying molecular changes in the gut could provide both biomarkers for early diagnosis and gut-targeted therapies to prevent progression.
objectiveTo identify early molecular changes in the gut-brain axis in Thy1-haSyn mice through gene expression profiling.
methodsGene expression profiling was performed on gut (colon) and brain (striatal) tissue from Thy1-haSyn and wild-type (WT) mice aged 1 and 3 months using 3' RNA sequencing. Analysis included differential expression, gene set enrichment and weighted gene co-expression network analysis (WGCNA).
resultsAt one month, differential expression (Thy1-haSyn vs. WT) of mitochondrial genes and pathways related to PD was discordant between gut and brain, with negative enrichment in brain (enriched in WT) but positive enrichment in gut. Linear regression of WGCNA modules showed partial independence of gut and brain gene expression changes. Thy1-haSyn-associated WGCNA modules in the gut were enriched for PD risk genes and PD-relevant pathways including inflammation, autophagy, and oxidative stress. Changes in gene expression were modest at 3 months.
conclusionsOverexpression of haSyn acutely disrupts gene expression in the colon. While changes in colon gene expression are highly related to known PD-relevant mechanisms, they are distinct from brain changes, and in some cases, opposite in direction. These findings are in line with the emerging view of PD as a multi-system disease.
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Registered trials
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