ArticleNeurobiology of disease2025
Differential roles of human tau isoforms in the modulation of inflammation and development of neuropathology.
Article in Neurobiology of disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Tau dysfunction in alzheimer's disease: molecular and cellular mechanisms, genetic modulation, and therapeutic perspectives.Molecular biology reports · 2026Review
- Neuroinflammation and Tauopathies.Molecular biology reports · 2026Review
- Dysregulation of the Tau-Microtubule-End-Binding Protein Axis in Alzheimer's Disease and Related Tauopathies.International journal of molecular sciences · 2026Review
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Alzheimer's disease (AD) is the most common tauopathy characterized by progressive accumulation of Aß and tau neuropathology. Tau is expressed in two major isoforms containing either 3 or 4C-terminal repeats, 3R and 4R. Despite tau isoforms occurring in roughly equimolar ratios in AD, the majority of research focus in developed mouse and in vitro models focus only on 4Rtau. To generate a more complete model of AD tauopathy and understand specific tau isoform-mediated neuropathology and neurodegeneration, we generated a transgenic mouse line expressing both 3Rtau and 4Rtau and determined how this impacted the timing and severity of neuropathological and behavioral changes.
methods3Rtau-tg and 4Rtau-tg mice were crossed to generate 3R/4Rtau-tg bigenic mice. At 3, 6, and 9 months of age, mice were assessed for behavior, neuropathology and RNA expression.
results3R/4Rtau bigenic mice expressed increased tau and phosphorylated tau in the hippocampus and cortex compared to single (3R or 4R) transgenic cohorts as early as 3-months of age and this was accompanied with increased astrogliosis and microglial activation. Bigenic mice had significantly greater behavioral deficits compared to either single transgenic littermates in spatial learning and memory as well as nest building, indicative of depression and/or cognitive deficits.
conclusionThis new mouse model of tauopathy more completely recapitulates the pattern, severity and accumulation of tau and associated neuropathology and behavioral changes observed in human tauopathies such as AD. 3R/4Rtau-tg bigenic mice should supplant existing single transgenic tau models for general validation of therapeutic targets and investigations of novel therapies on tauopathy endpoints.
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