Cited by 60Alzheimer's disease research and treatmentsTraumatic Brain Injury ResearchTraumatic Brain Injury and Neurovascular Disturbances

Neurotoxic tau oligomers after single versus repetitive mild traumatic brain injury

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Bittar, Alice, Bhatt, Nemil, Hasan, Tasneem F, Montalbano, Mauro, Puangmalai, Nicha, McAllen, Salome, Ellsworth, Anna, Carretero Murillo, Mariana +6 more·2019·Brain Communications

Abstract

Mild traumatic brain injury accounts for the majority of head injuries and has been correlated with neurodegeneration and dementia. While repetitive mild traumatic brain injury is highly correlated to neurodegeneration, the correlation of a single mild traumatic brain injury with neurodegeneration is still unclear. Because tau aggregates are the main form of mild traumatic brain injury induced pathology, toxic forms of tau protein most likely play a role in the development of post-mild traumatic brain injury neurodegeneration. Therefore, it becomes crucial to characterize the properties of soluble tau aggregates in single versus repetitive mild traumatic brain injury. Herein, we isolated tau oligomers from wild-type mice exposed to single or repetitive mild traumatic brain injury and characterized the tau aggregates at functional, biochemical and biophysical levels. We demonstrated that single versus repetitive mild traumatic brain injuries frequencies lead to the formation of different tau oligomeric polymorphisms. These polymorphisms express different long-term potentiation impairment potencies, toxicity potentials, morphologies and strain indicating properties. To our knowledge, this is the first evidence that soluble tau oligomers derived from single versus repetitive mild traumatic brain injuries form distinct polymorphisms that possibly correlate with the risk of neurodegeneration after mild traumatic brain injury.

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Authors
Bittar, A., Bhatt, N., Hasan, T. F., Montalbano, M., Puangmalai, N., McAllen, S., Ellsworth, A., Carretero Murillo, M., Taglialatela, G., Lucke-Wold, B., Logsdon, A., Rosen, C., Turner, R. C., & Kayed, R.
Affiliations
  • The University of Texas Medical Branch at Galveston (US)
  • Louisiana State University Health Sciences Center Shreveport (US)
  • Department of Neurology, The Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555-1045, USA
  • Baylor College of Medicine, Houston, TX 77030, USA
  • University of Florida (US)
  • University of Washington (US)
  • Central Illinois Neural Health Sciences, Bloomington, IL 61701, USA
  • West Virginia University (US)
Corresponding author
Kayed, Rakez
Venue
Brain Communications
Published
2019-01-01
Volume
1
Issue
1
Pages
fcz004-fcz004
ISSN
2632-1297 (ISSN-L)
OpenAlex
W2965540189
Cited by
60
References
54
Citations by year
2026: 6 · 2025: 11 · 2024: 9 · 2023: 10 · 2022: 13 · 2021: 3 · 2020: 7 · 2019: 1
FWCI
4.11
Type
journal article
Language
en
Open access
Locations
  • Brain Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Gillson Longenbaugh foundation
  • National Institutes of Health (AG054025, RFA1AG055771)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
mild traumatic brain injury, repetitive mild traumatic brain injury, tau oligomers, neurodegeneration, long-term potentiation, tau toxicity, traumatic brain injury

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