Induction of a transmissible tau pathology by traumatic brain injury.
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Authors
Sammali, Eliana
Chiaravalloti, Maria Antonietta
Vegliante, Gloria
Masone, Antonio
Corbelli, Alessandro
Smith, Douglas H
Stocchetti, Nino
Publication Date
2018-09Journal Title
Brain : a journal of neurology
ISSN
0006-8950
Publisher
OUP
Volume
141
Issue
9
Pages
2685-2699
Language
eng
Type
Article
Physical Medium
Print
Metadata
Show full item recordCitation
Zanier, E. R., Bertani, I., Sammali, E., Pischiutta, F., Chiaravalloti, M. A., Vegliante, G., Masone, A., et al. (2018). Induction of a transmissible tau pathology by traumatic brain injury.. Brain : a journal of neurology, 141 (9), 2685-2699. https://doi.org/10.1093/brain/awy193
Abstract
Traumatic brain injury is a risk factor for subsequent neurodegenerative disease, including chronic traumatic encephalopathy, a tauopathy mostly associated with repetitive concussion and blast, but not well recognized as a consequence of severe traumatic brain injury. Here we show that a single severe brain trauma is associated with the emergence of widespread hyperphosphorylated tau pathology in a proportion of humans surviving late after injury. In parallel experimental studies, in a model of severe traumatic brain injury in wild-type mice, we found progressive and widespread tau pathology, replicating the findings in humans. Brain homogenates from these mice, when inoculated into the hippocampus and overlying cerebral cortex of naive mice, induced widespread tau pathology, synaptic loss, and persistent memory deficits. These data provide evidence that experimental brain trauma induces a self-propagating tau pathology, which can be transmitted between mice, and call for future studies aimed at investigating the potential transmissibility of trauma associated tau pathology in humans.
Keywords
Brain, Cerebral Cortex, Animals, Mice, Inbred C57BL, Humans, Mice, Brain Concussion, Neurodegenerative Diseases, Tauopathies, Disease Models, Animal, tau Proteins, Phosphorylation, Aged, Aged, 80 and over, Middle Aged, Male, Brain Injuries, Traumatic
Identifiers
External DOI: https://doi.org/10.1093/brain/awy193
This record's URL: https://www.repository.cam.ac.uk/handle/1810/283429
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