ArticleMolecular brain2023
α-Synuclein propagation leads to synaptic abnormalities in the cortex through microglial synapse phagocytosis.
Article in Molecular brain, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 19 citations in OpenAlex.
- Rebalancing α-Synuclein Clearance: Novel Therapeutic Frontiers in Parkinson's Disease.Neuromolecular medicine · 2026Review
- Role of α-Synuclein in the Prefrontal Cortex: From Physiological Synaptic Modulation to Synaptic Failure in Parkinson's Disease.Biomedicines · 2026Review
- Microengineering of the capillary interface of midbrain dopaminergic neurons to study Parkinson's disease vascular alterations.Communications engineering · 2026Article
- The conundrum of alpha-synuclein antibody failures in Parkinson's disease: a narrative review of mechanisms and alternative metabolic hypotheses.Therapeutic advances in neurological disorders · 2026Review
- Optogenetic-induced α-synuclein accumulation reveals early synaptic dysfunction in experimental models of Parkinson's disease.NPJ Parkinson's disease · 2025Article
- Synapse vulnerability and resilience across the clinical spectrum of dementias.Nature reviews. Neurology · 2025Review
- Early α-synuclein aggregation decreases corticostriatal glutamate drive and synapse density.Neurobiology of disease · 2025Article
- Chronic stress induces depression-like behaviors and Parkinsonism via upregulating α-synuclein.NPJ Parkinson's disease · 2025Article
- Regional and temporal dynamics of DNA methylation and epigenetic gene regulation in response to binge-like alcohol exposure in the adolescent mouse brain.Frontiers in molecular neuroscience · 2025Article
- Site-specific seeding of Lewy pathology induces distinct pre-motor cellular and dendritic vulnerabilities in the cortex.Nature communications · 2024Article
- α-Synuclein disrupts microglial autophagy through STAT1-dependent suppression of Ulk1 transcription.Journal of neuroinflammation · 2024Article
- Natural Compounds That Activate the KEAP1/Nrf2 Signaling Pathway as Potential New Drugs in the Treatment of Idiopathic Parkinson's Disease.Antioxidants (Basel, Switzerland) · 2024Review
- Cerebral Hypoxia-Induced Molecular Alterations and Their Impact on the Physiology of Neurons and Dendritic Spines: A Comprehensive Review.Cellular and molecular neurobiology · 2024Review
- Targets to Search for New Pharmacological Treatment in Idiopathic Parkinson's Disease According to the Single-Neuron Degeneration Model.Biomolecules · 2024Review
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The major neuropathologic feature of Parkinson's disease is the presence of widespread intracellular inclusions of α-synuclein known as Lewy bodies. Evidence suggests that these misfolded protein inclusions spread through the brain with disease progression. Changes in synaptic function precede neurodegeneration, and this extracellular α-synuclein can affect synaptic transmission. However, whether and how the spreading of α-synuclein aggregates modulates synaptic function before neuronal loss remains unknown. In the present study, we investigated the effect of intrastriatal injection of α-synuclein preformed fibrils (PFFs) on synaptic activity in the somatosensory cortex using a combination of whole-cell patch-clamp electrophysiology, histology, and Golgi-Cox staining. Intrastriatal PFF injection was followed by formation of phosphorylated α-synuclein inclusions in layer 5 of the somatosensory cortex, leading to a decrease in synapse density, dendritic spines, and spontaneous excitatory post-synaptic currents, without apparent neuronal loss. Additionally, three-dimensional reconstruction of microglia using confocal imaging showed an increase in the engulfment of synapses. Collectively, our data indicate that propagation of α-synuclein through neural networks causes abnormalities in synaptic structure and dynamics prior to neuronal loss.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.