Cited by 1,102Alzheimer's disease research and treatmentsAmyotrophic Lateral Sclerosis ResearchRNA Research and Splicing

Tau protein liquid–liquid phase separation can initiate tau aggregation

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Wegmann, Susanne, Eftekharzadeh, Bahareh, Tepper, Katharina, Zoltowska, Katarzyna M, Bennett, Rachel E, Dujardin, Simon, Laskowski, Pawel R, MacKenzie, Danny +12 more·2018·The EMBO Journal

Abstract

The transition between soluble intrinsically disordered tau protein and aggregated tau in neurofibrillary tangles in Alzheimer's disease is unknown. Here, we propose that soluble tau species can undergo liquid–liquid phase separation (LLPS) under cellular conditions and that phase‐separated tau droplets can serve as an intermediate toward tau aggregate formation. We demonstrate that phosphorylated or mutant aggregation prone recombinant tau undergoes LLPS, as does high molecular weight soluble phospho‐tau isolated from human Alzheimer brain. Droplet‐like tau can also be observed in neurons and other cells. We found that tau droplets become gel‐like in minutes, and over days start to spontaneously form thioflavin‐S‐positive tau aggregates that are competent of seeding cellular tau aggregation. Since analogous LLPS observations have been made for FUS, hnRNPA1, and TDP43, which aggregate in the context of amyotrophic lateral sclerosis, we suggest that LLPS represents a biophysical process with a role in multiple different neurodegenerative diseases. The microtubule binding protein tau can undergo liquid‐liquid phase separation under physiological conditions. Phosphorylated, FTD‐mutant, and Alzheimer's disease brain tau is capable of forming droplets that can initiate the formation of aberrant, aggregated tau “seeds”. LLPS may play a role in different tauopathies. An Alzheimer's Disease‐associated tau phase transition from soluble to droplet may exemplify a biophysical mechanism underlying several neurodegenerative diseases.

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Authors
Wegmann, S., Eftekharzadeh, B., Tepper, K., Zoltowska, K. M., Bennett, R. E., Dujardin, S., Laskowski, P. R., MacKenzie, D., Kamath, T., Commins, C., Vanderburg, C., Roe, A. D., Fan, Z., Molliex, A. M., Hernandez‐Vega, A., Muller, D., Hyman, A. A., Mandelkow, E., Taylor, J. P., & Hyman, B. T.
Affiliations
  • Harvard University (US)
  • German Center for Neurodegenerative Diseases (DE)
  • ETH Zurich (CH)
  • St. Jude Children's Research Hospital (US)
Corresponding author
  • Wegmann, Susanne
  • Hyman, Bradley T
Venue
The EMBO Journal
Published
2018-02-22
Volume
37
Issue
7
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2788827529
Cited by
1,102
References
111
Citations by year
2026: 153 · 2025: 141 · 2024: 156 · 2023: 136 · 2022: 150 · 2021: 137 · 2020: 112 · 2019: 89 · 2018: 26 · 2017: 1
FWCI
62.13
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • Max Planck Digital Library (submittedVersion)
  • DZNE Pub (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by-nc-nd)
  • ETH Zürich Research Collection
Funders
  • Massachusetts Alzheimer Disease Research Center (P50AG005134)
  • Howard Hughes Medical Institute (R35NS097974)
  • Deutsches Zentrum für Neurodegenerative Erkrankungen
  • Max‐Planck‐Gesellschaft
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
Keywords
tau protein, liquid-liquid phase separation, tau aggregation, neurofibrillary tangles, Alzheimer's disease, tauopathy, phosphorylated tau, intrinsically disordered proteins, neurodegenerative diseases
MeSH terms
Heterogeneous Nuclear Ribonucleoprotein A1, Aged, 80 and over, Alzheimer Disease, Amino Acid Sequence, Amyotrophic Lateral Sclerosis, Animals, Brain, Cloning, Molecular, DNA-Binding Proteins, Escherichia coli, Female, Humans, Mice, Transgenic, Molecular Weight, Neuroblastoma, Neurons, Phosphorylation, Recombinant Proteins, Neurofibrillary Tangles, tau Proteins, Neurodegenerative Diseases, Sequence Analysis, Protein, Mice, Benzothiazoles, Biophysical Phenomena, HEK293 Cells, Liquid-Liquid Extraction, Sf9 Cells, Protein Aggregation, Pathological

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