A soluble phosphorylated tau signature links tau, amyloid and the evolution of stages of dominantly inherited Alzheimer's disease
AuthorBarthelemy, NR; Li, Y; Joseph-Mathurin, N; Gordon, BA; Hassenstab, J; Benzinger, TLS; Buckles, V; Fagan, AM; Perrin, RJ; Goate, AM; ...
Source TitleNature Medicine
University of Melbourne Author/sMasters, Colin
AffiliationFlorey Department of Neuroscience and Mental Health
Document TypeJournal Article
CitationsBarthelemy, N. R., Li, Y., Joseph-Mathurin, N., Gordon, B. A., Hassenstab, J., Benzinger, T. L. S., Buckles, V., Fagan, A. M., Perrin, R. J., Goate, A. M., Morris, J. C., Karch, C. M., Xiong, C., Allegri, R., Mendez, P. C., Berman, S. B., Ikeuchi, T., Mori, H., Shimada, H. ,... Xu, X. (2020). A soluble phosphorylated tau signature links tau, amyloid and the evolution of stages of dominantly inherited Alzheimer's disease. NATURE MEDICINE, 26 (3), pp.398-+. https://doi.org/10.1038/s41591-020-0781-z.
Access StatusAccess this item via the Open Access location
Open Access URLhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7309367
Development of tau-based therapies for Alzheimer's disease requires an understanding of the timing of disease-related changes in tau. We quantified the phosphorylation state at multiple sites of the tau protein in cerebrospinal fluid markers across four decades of disease progression in dominantly inherited Alzheimer's disease. We identified a pattern of tau staging where site-specific phosphorylation changes occur at different periods of disease progression and follow distinct trajectories over time. These tau phosphorylation state changes are uniquely associated with structural, metabolic, neurodegenerative and clinical markers of disease, and some (p-tau217 and p-tau181) begin with the initial increases in aggregate amyloid-β as early as two decades before the development of aggregated tau pathology. Others (p-tau205 and t-tau) increase with atrophy and hypometabolism closer to symptom onset. These findings provide insights into the pathways linking tau, amyloid-β and neurodegeneration, and may facilitate clinical trials of tau-based treatments.
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