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Lookup NU author(s): Professor Tiago OuteiroORCiD
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
Background: Alpha-synuclein (aSyn) is a key player in neurodegenerative diseases such as Parkinson's disease (PD), dementia with Lewy bodies, or multiple system atrophy. aSyn is expressed throughout the brain, and can also be detected in various peripheral tissues. In fact, initial symptoms of PD are non-motoric and include autonomic dysfunction, suggesting that the periphery might play an important role in early development of the disease. aSyn is expressed at relatively low levels in non-central tissues, which brings challenges for its detection and quantification in different tissues. Objective: Our goal was to assess the sensitivity of aSyn detection in central and peripheral mouse tissues through capillary electrophoresis (CE) immunoblot, considering the traditional SDS-PAGE immunoblot as the current standard. Methods: Tissues from central and non-central origin from wild type mice were extracted, and included midbrain, inner ear, and esophagus/stomach. aSyn detection was assessed through immunoblotting using Simple Western size-based CE and SDS-PAGE. Results: CE immunoblots show a consistent detection of aSyn in central and peripheral tissues. Through SDS-PAGE, immunoblots revealed a reliable signal corresponding to aSyn, particularly following membrane fixation. Conclusion: Our results suggest a reliable detection of aSyn in central and peripheral tissues using the CE Simple Western immunoblot system. These observations can serve as preliminary datasets when aiming to formally compare CE with SDS-PAGE, as well as for further characterization of aSyn using this technique.
Author(s): Erdmann L, Santos PI, Rieper P, Klafki HW, Beutner D, Wiltfang J, Outeiro TF, Setz C
Publication type: Article
Publication status: Published
Journal: Journal of Parkinson's disease
Year: 2024
Volume: 14
Issue: 4
Pages: 681-692
Online publication date: 04/06/2033
Acceptance date: 04/03/2024
Date deposited: 17/06/2024
ISSN (print): 1877-7171
ISSN (electronic): 1877-718X
Publisher: ISO Press
URL: https://doi.org/10.3233/JPD-230379
DOI: 10.3233/JPD-230379
PubMed id: 38578903
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