Cited by 195Alzheimer's disease research and treatmentsTraumatic Brain Injury ResearchTraumatic Brain Injury and Neurovascular Disturbances

Traumatic Brain Injury Induces Tau Aggregation and Spreading

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Edwards, George, Zhao, Jing, Dash, Pramod K., Soto, Claudio, Moreno-Gonzalez, Ines·2020·Journal of Neurotrauma

Abstract

The misfolding and aggregation of tau protein into neurofibrillary tangles is the main underlying hallmark of tauopathies. Most tauopathies have a sporadic origin and can be associated with multiple risk factors. Traumatic brain injury (TBI) has been suggested as a risk factor for tauopathies by triggering disease onset and facilitating its progression. Several studies indicate that TBI seems to be a risk factor to development of Alzheimer disease and chronic traumatic encephalopathy, because there is a relationship of TBI severity and propensity to development of these illnesses. In this study, we evaluated whether moderate to severe TBI can trigger the initial formation of pathological tau that would induce the development of the pathology throughout the brain. To this end, we subjected tau transgenic mice to TBI and assessed tau phosphorylation and aggregation pattern to create a spatial heat map of tau deposition and spreading in the brain. Our results suggest that brain injured tau transgenic mice have an accelerated tau pathology in different brain regions that increases over time compared with sham mice. The appearance of pathological tau occurs in regions distant to the injury area that are connected synaptically, suggesting dissemination of tau aggregates. Overall, this work posits TBI as a risk factor for tauopathies through the induction of tau hyperphosphorylation and aggregation.

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Authors
Edwards, G., Zhao, J., Dash, P. K., Soto, C., & Moreno-Gonzalez, I.
Affiliations
  • The University of Texas Health Science Center at Houston (US)
  • Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, The University of Texas Health Science Center at Houston, Houston, Texas.
Venue
Journal of Neurotrauma
Published
2019-12-11
Volume
37
Issue
1
Pages
80-92
ISSN
  • 0897-7151 (ISSN-L)
  • 1557-9042
OpenAlex
W2963219749
Cited by
195
References
70
Citations by year
2026: 19 · 2025: 31 · 2024: 25 · 2023: 42 · 2022: 37 · 2021: 24 · 2020: 14 · 2019: 3
FWCI
13.75
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurotrauma (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Repositorio Institucional de la Universidad de Málaga (University of Málaga) (acceptedVersion, cc-by)
Funders
  • U.S. Department of Defense (AZ160082, AZ160106)
  • Alzheimer's Association (NIRG-394284)
  • University of Texas System
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (P01AI077774)
  • National Institute of Neurological Disorders and Stroke (F31NS103499)
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
traumatic brain injury, tau protein, tau aggregation, tauopathy, tau propagation, tau phosphorylation, neurofibrillary tangles, Alzheimer's disease, chronic traumatic encephalopathy, tau transgenic mice, risk factors, synaptic connectivity
MeSH terms
Brain Injuries, Traumatic, Animals, Mice, Transgenic, tau Proteins, Mice, Protein Aggregation, Pathological

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