Cited by 132Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Evaluating the Patterns of Aging-Related Tau Astrogliopathy Unravels Novel Insights Into Brain Aging and Neurodegenerative Diseases

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Kovacs, Gabor G., Robinson, John L., Xie, Sharon X., Lee, Edward B., Grossman, Murray, Wolk, David A., Irwin, David J., Weintraub, Dan +8 more·2017·Journal of Neuropathology & Experimental Neurology

Abstract

The term "aging-related tau astrogliopathy" (ARTAG) describes pathological accumulation of abnormally phosphorylated tau protein in astrocytes. We evaluated the correlates of ARTAG types (i.e., subpial, subependymal, white and gray matter, and perivascular) in different neuroanatomical regions. Clinical, neuropathological, and genetic (eg, APOE ε4 allele, MAPT H1/H2 haplotype) data from 628 postmortem brains from subjects were investigated; most of the patients had been longitudinally followed at the University of Pennsylvania. We found that (i) the amygdala is a hotspot for all ARTAG types; (ii) age at death, male sex, and presence of primary frontotemporal lobar degeneration (FTLD) tauopathy are significantly associated with ARTAG; (iii) age at death, greater degree of brain atrophy, ventricular enlargement, and Alzheimer disease (AD)-related variables are associated with subpial, white matter, and perivascular ARTAG types; (iv) AD-related variables are associated particularly with lobar white matter ARTAG; and (v) gray matter ARTAG in primary FTLD-tauopathies appears in areas without neuronal tau pathology. We provide a reference map of ARTAG types and propose at least 5 constellations of ARTAG. Furthermore, we propose a conceptual link between primary FTLD-tauopathy and ARTAG-related astrocytic tau pathologies. Our observations serve as a basis for etiological stratification and definition of progression patterns of ARTAG.

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  1. Irwin DJ, Brettschneider J, McMillan CT, et al. Deep clinical and neuro- pathological phenotyping of Pick disease. Ann Neurol 2016;79:272-87
  2. Smith C, Margulies S, Duhaime A-C, Trauma. In: Love S, Budka H, Ironside JW, Perry A eds. Greenfield's Neuropathology, Vol. 1. Boca Raton, FL: CRC Press, 2015:637-82

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Authors
Kovacs, G. G., Robinson, J. L., Xie, S. X., Lee, E. B., Grossman, M., Wolk, D. A., Irwin, D. J., Weintraub, D., Kim, C. F., Schuck, T., Yousef, A., Wagner, S. T., Suh, E., Van Deerlin, V. M., Lee, V. M.-Y., & Trojanowski, J. Q.
Affiliations
Medical University of Vienna (AT)
Corresponding author
Trojanowski, John Q.
Venue
Journal of Neuropathology & Experimental Neurology
Published
2017-03-14
Volume
76
Issue
4
Pages
270-288
ISSN
  • 0022-3069 (ISSN-L)
  • 1554-6578
OpenAlex
W2606314986
Cited by
132
References
67
Citations by year
2026: 14 · 2025: 11 · 2024: 9 · 2023: 13 · 2022: 13 · 2021: 15 · 2020: 15 · 2019: 18 · 2018: 17 · 2017: 7
FWCI
11.53
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Pennsylvania
  • National Institutes of Health (AG 10 124, AG 17586)
  • National Institute on Aging (P30AG010124, P01AG017586)
  • National Institute of Neurological Disorders and Stroke (K23NS088341, R01NS094003)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
tau phosphorylation, astrocytes, brain aging, neurodegenerative diseases, amygdala, Alzheimer's disease, APOE ε4, brain atrophy, ventriculomegaly, neuropathology
MeSH terms
Age Factors, Aged, Aged, 80 and over, Aging, Alzheimer Disease, Apolipoproteins E, Astrocytes, Atrophy, Brain, Female, Humans, Longitudinal Studies, Male, Neuroglia, Sex Factors, tau Proteins, Neurodegenerative Diseases, Tauopathies, Frontotemporal Lobar Degeneration

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