Cited by 1,185Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMedical Imaging Techniques and Applications

Tau PET patterns mirror clinical and neuroanatomical variability in Alzheimer’s disease

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Ossenkoppele, Rik, Schonhaut, Daniel R., Schöll, Michael, Lockhart, Samuel N., Ayakta, Nagehan, Baker, Suzanne L., O’Neil, James P., Janabi, Mustafa +12 more·2016·Brain

Abstract

SEE SARAZIN ET AL DOI101093/BRAIN/AWW041 FOR A SCIENTIFIC COMMENTARY ON THIS ARTICLE: The advent of the positron emission tomography tracer (18)F-AV1451 provides the unique opportunity to visualize the regional distribution of tau pathology in the living human brain. In this study, we tested the hypothesis that tau pathology is closely linked to symptomatology and patterns of glucose hypometabolism in Alzheimer's disease, in contrast to the more diffuse distribution of amyloid-β pathology. We included 20 patients meeting criteria for probable Alzheimer's disease dementia or mild cognitive impairment due to Alzheimer's disease, presenting with a variety of clinical phenotypes, and 15 amyloid-β-negative cognitively normal individuals, who underwent (18)F-AV1451 (tau), (11)C-PiB (amyloid-β) and (18)F-FDG (glucose metabolism) positron emission tomography, apolipoprotein E (APOE) genotyping and neuropsychological testing. Voxel-wise contrasts against controls (at P < 0.05 family-wise error corrected) showed that (18)F-AV1451 and (18)F-FDG patterns in patients with posterior cortical atrophy ('visual variant of Alzheimer's disease', n = 7) specifically targeted the clinically affected posterior brain regions, while (11)C-PiB bound diffusely throughout the neocortex. Patients with an amnestic-predominant presentation (n = 5) showed highest (18)F-AV1451 retention in medial temporal and lateral temporoparietal regions. Patients with logopenic variant primary progressive aphasia ('language variant of Alzheimer's disease', n = 5) demonstrated asymmetric left greater than right hemisphere (18)F-AV1451 uptake in three of five patients. Across 30 FreeSurfer-defined regions of interest in 16 Alzheimer's disease patients with all three positron emission tomography scans available, there was a strong negative association between (18)F-AV1451 and (18)F-FDG uptake (Pearson's r = -0.49 ± 0.07, P < 0.001) and less pronounced positive associations between (11)C-PiB and (18)F-FDG (Pearson's r = 0.16 ± 0.09, P < 0.001) and (18)F-AV1451 and (11)C-PiB (Pearson's r = 0.18 ± 0.09, P < 0.001). Voxel-wise linear regressions thresholded at P < 0.05 (uncorrected) showed that, across all patients, younger age was associated with greater (18)F-AV1451 uptake in wide regions of the neocortex, while older age was associated with increased (18)F-AV1451 in the medial temporal lobe. APOE ϵ4 carriers showed greater temporal and parietal (18)F-AV1451 uptake than non-carriers. Finally, worse performance on domain-specific neuropsychological tests was associated with greater (18)F-AV1451 uptake in key regions implicated in memory (medial temporal lobes), visuospatial function (occipital, right temporoparietal cortex) and language (left > right temporoparietal cortex). In conclusion, tau imaging-contrary to amyloid-β imaging-shows a strong regional association with clinical and anatomical heterogeneity in Alzheimer's disease. Although preliminary, these results are consistent with and expand upon findings from post-mortem, animal and cerebrospinal fluid studies, and suggest that the pathological aggregation of tau is closely linked to patterns of neurodegeneration and clinical manifestations of Alzheimer's disease.

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Crossref · 10.1093/brain/aww027

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  • Tau PET is an excellent indicator of symptomatic AD.

    “Because tau PET is an excellent indicator of symptomatic AD5”
  • In a cohort of 20 AD and 15 controls, regional tau PET deposition co-localised with hypometabolic regions and correlated with areas critical for cognitive functions uniquely affected in distinct variants of AD.

    “In a cohort of 20 AD and 15 controls who underwent 18F-flortaucipir, 11C-PiB and FDG-PET, regional tau PET deposition co-localised with hypometabolic regions and correlated with areas critical for cognitive functions uniquely affected in distinct variants of AD (e.g. posterior cortical atrophy) [191].”
  • Overall, tau PET deposition mirrors progression of AD pathology and correlates with disease severity.

    “Overall, tau PET deposition mirrors the progression of AD pathology, correlates with disease severity and in that respect it is hypothesised that will become one of the most important tools for the differential diagnosis between AD and non-AD dementias [191, 199, 200].”

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Authors
Ossenkoppele, R., Schonhaut, D. R., Schöll, M., Lockhart, S. N., Ayakta, N., Baker, S. L., O’Neil, J. P., Janabi, M., Lazaris, A., Cantwell, A., Vogel, J., Santos, M., Miller, Z. A., Bettcher, B. M., Vossel, K. A., Kramer, J. H., Gorno-Tempini, M. L., Miller, B. L., Jagust, W. J., & Rabinovici, G. D.
Affiliations
  • University of California, San Francisco (US)
  • University of Gothenburg (SE)
  • University of California, Berkeley (US)
  • Lawrence Berkeley National Laboratory (US)
Venue
Brain
Published
2016-03-08
Volume
139
Issue
5
Pages
1551-1567
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2293378393
Cited by
1,185
References
19
Citations by year
2026: 95 · 2025: 125 · 2024: 120 · 2023: 105 · 2022: 137 · 2021: 123 · 2020: 131 · 2019: 115 · 2018: 103 · 2017: 96 · 2016: 33
FWCI
102.79
Type
journal article
Language
en
Open access
Locations
  • Brain (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • BrightFocus Foundation
  • European Commission (628812)
  • Sveriges Läkarförbund
  • University of California, San Francisco
  • Avid Radiopharmaceuticals
  • National Institute on Aging (K23AG038357, F32AG050389, R01AG045611, K23AG042492, K23AG048291, P01AG019724, R01AG034570, P50AG023501)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
Keywords
Alzheimer's disease, tau PET, 18F-AV-1451, amyloid PET, [11C]PIB, posterior cortical atrophy, logopenic variant primary progressive aphasia, clinical phenotype
MeSH terms
Aged, Aged, 80 and over, Aging, Alzheimer Disease, Amyloid, Aniline Compounds, Apolipoproteins E, Brain, Carbolines, Female, Glucose, Humans, Male, Middle Aged, Neuropsychological Tests, Thiazoles, Case-Control Studies, tau Proteins, Fluorodeoxyglucose F18, Positron-Emission Tomography, Benzothiazoles, Neuroimaging, Cognitive Dysfunction

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