NeuralCipher Research overview
The text below is the source article’s original abstract under a verified reuse license. cc by
Abstract Parkinson’s disease (PD) is pathologically characterized by the deposition of a-synuclein (a-syn) containing Lewy bodies/neurites in both the central nervous system (CNS) and the peripheral nervous system (PNS). Recent evidence indicates the contribution of exosomes, nano-sized extracellular vesicles, to the dissemination of Lewy pathology in the PNS into the CNS and vice versa. We analyzed serum exosomes from patients with PD (n = 142), multiple system atrophy (MSA) (n = 18), progressive supranuclear palsy (PSP) (n = 28), rapid eye movement sleep behavior disorder (n = 31), and controls (n = 105). Although the number of exosomes significantly decreased in PD compared to controls (p = 0.002), the filamentous α-syn in exosomes quantified by our ELISA system significantly increased in PD compared to controls (p p = 0.03) or PSP (p = 0.04). Further analysis revealed that exosomes facilitate the propagation of filamentous α-syn between neurons and from the PNS to the CNS. These results highlight that the serum exosomal a-syn filaments may reflect peripheral Lewy pathology and that exosomes can enhance the propagation into the CNS.
Scientific assessment
Research question
Assess the question within the original study’s scope.
Methods & sample
Check the source article for study design and sample details.
Key findings
An editorially approved findings summary is not yet published for this record.
Limitations
Generalizability, bias and clinical meaning require separate assessment.
Methods, samples and clinical conclusions are not inferred from bibliographic metadata.