Tauopathies and synucleinopathies: Do cerebrospinal fluid β-amyloid peptides reflect disease-specific pathogenesis?
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To evaluate variations in amyloid beta (Aβ) peptide pattern in cerebrospinal fluid (CSF) in neurodegenerative disorders. A recently established quantitative urea-based Aβ-sodium-dodecylsulfate-polyacrylamide-gel-electrophoresis with western immunoblot (Aβ-SDS-PAGE/immunoblot) revealed a highly conserved Aβ peptide (Aβ1-37, 1-38, 1-39, 1-40, 1-42) pattern in CSF. We asked whether the variation might be useful to further elucidate the overlap between or distinctions among neurodegenerative diseases in Aβ-processing.
We used the Aβ-SDS-PAGE/immunoblot to investigate CSF for disease-specific Aβ peptide patterns. CSF samples from 96 patients with mainly clinically diagnosed Alzheimer’s disease (n = 15), progressive supranuclear palsy (n = 20), corticobasal degeneration (n = 12), Parkinson’s disease (n = 11), multiple systems atrophy (n = 18), and dementia with Lewy-bodies (n = 20) were analysed as well a comparison group (n = 19).
The Aβ peptide patterns varied between tauopathies and synucleinopathies and between all diseases and the comparison group, possibly due to the influence of tau and α-synuclein on Aβ-processing.
- Tauopathies and synucleinopathies: Do cerebrospinal fluid β-amyloid peptides reflect disease-specific pathogenesis?
Journal of Neural Transmission
Volume 114, Issue 7 , pp 919-927
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- Keywords: Synucleinopathies, tauopathies, Alzheimer’s disease, Parkinson’s disease, cerebrospinal fluid, amyloid β peptides
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- Author Affiliations
- A1. Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, U.S.A.
- A2. Department of Psychiatry, University of Goettingen, Goettingen, Germany
- A3. Department of Psychiatry and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany
- A4. Department of Neurology, University of Ulm, Ulm, Germany
- A5. University of Goettingen, Paracelsus-Elena Klinik, Kassel, Germany