Beta-synuclein in cerebrospinal fluid as an early diagnostic marker of Alzheimer’s disease
Objective Synaptic loss plays a major role in Alzheimer’s disease (AD). However so far no neurochemical marker for synaptic loss has been introduced into clinical routine. By mass spectrometry beta-synuclein was established as a candidate marker. We now aimed to set up a novel ELISA for beta-synucle...
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| Hauptverfasser: | , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| In: |
Journal of neurology, neurosurgery, and psychiatry
Year: 2021, Jahrgang: 92, Heft: 4, Pages: 349-356 |
| ISSN: | 1468-330X |
| DOI: | 10.1136/jnnp-2020-324306 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1136/jnnp-2020-324306 Verlag, lizenzpflichtig, Volltext: https://jnnp.bmj.com/content/92/4/349 
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| Verfasserangaben: | Steffen Halbgebauer, Patrick Oeckl, Petra Steinacker, Deniz Yilmazer-Hanke, Sarah Anderl-Straub, Christine von Arnim, Lutz Froelich, Luis Aragão Gomes, Lucrezia Hausner, Andre Huss, Holger Jahn, Jochen Weishaupt, Albert C Ludolph, Dietmar R Thal, Markus Otto |
MARC
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| 245 | 1 | 0 | |a Beta-synuclein in cerebrospinal fluid as an early diagnostic marker of Alzheimer’s disease |c Steffen Halbgebauer, Patrick Oeckl, Petra Steinacker, Deniz Yilmazer-Hanke, Sarah Anderl-Straub, Christine von Arnim, Lutz Froelich, Luis Aragão Gomes, Lucrezia Hausner, Andre Huss, Holger Jahn, Jochen Weishaupt, Albert C Ludolph, Dietmar R Thal, Markus Otto |
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| 520 | |a Objective Synaptic loss plays a major role in Alzheimer’s disease (AD). However so far no neurochemical marker for synaptic loss has been introduced into clinical routine. By mass spectrometry beta-synuclein was established as a candidate marker. We now aimed to set up a novel ELISA for beta-synuclein for evaluation of its potential as a diagnostic and predictive marker for AD. - Methods We analysed in total 393 patients from four specialised centres. The diagnostic groups comprised: AD (n=151), behavioural variant frontotemporal dementia (bvFTD, n=18), Parkinson syndrome (n=46), Creutzfeldt-Jakob disease (CJD, n=23), amyotrophic lateral sclerosis (ALS, n=29), disease control (n=66) and 60 non-neurodegenerative control patients. Results were compared with core AD biomarkers (total tau, phospho-tau and amyloid-β peptide 1-42). Additionally, coexistence of beta-synuclein with vesicular glutamate transporter 1 (VGLUT1) was determined and beta-synuclein levels were quantified in brain homogenates. - Results Beta-synuclein levels quantified with the newly established ELISA correlated strongly with antibody-free quantitative mass spectrometry data (r=0.92 (95% CI: 0.89 to 0.94), p<0.0001). Cerebrospinal fluid (CSF) beta-synuclein levels were increased in AD-mild cognitive impairment (p<0.0001), AD dementia (p<0.0001) and CJD (p<0.0001), but not in bvFTD, Parkinson syndrome or ALS. Furthermore, beta-synuclein was localised in VGLUT1-positive glutamatergic synapses, and its expression was significantly reduced in brain tissue from patients with AD (p<0.01). - Conclusion We successfully established a sensitive and robust ELISA for the measurement of brain-enriched beta-synuclein, which we could show is localised in glutamatergic synapses. We confirmed previous, mass spectrometry-based observations of increased beta-synuclein levels in CSF of patients with AD and CJD supporting its potential use as a marker of synaptic degeneration. | ||
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