Cited by 52Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Network Tau spreading is vulnerable to the expression gradients of APOE and glutamatergic-related genes

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Montal, Victor, Diez, Ibai, Kim, Chan-Mi, Orwig, William, Bueichekú, Elisenda, Gutiérrez-Zúñiga, Raquel, Bejanin, Alexandre, Pegueroles, Jordi +7 more·2022·Science Translational Medicine

Abstract

A key hallmark of Alzheimer’s disease (AD) pathology is the intracellular accumulation of tau protein in the form of neurofibrillary tangles across large-scale networks of the human brain cortex. Currently, it is still unclear how tau accumulates within specific cortical systems and whether in situ genetic traits play a role in this circuit-based propagation progression. In this study, using two independent cohorts of cognitively normal older participants, we reveal the brain network foundation of tau spreading and its association with using high-resolution transcriptomic genetic data. We observed that specific connectomic and genetic gradients exist along the tau spreading network. In particular, we identified 577 genes whose expression is associated with the spatial spreading of tau. Within this set of genes, APOE and glutamatergic synaptic genes, such as SLC1A2 , play a central role. Thus, our study characterizes neurogenetic topological vulnerabilities in distinctive brain circuits of tau spreading and suggests that drug development strategies targeting the gradient expression of this set of genes should be explored to help reduce or prevent pathological tau accumulation.

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Crossref · 10.1126/scitranslmed.abn7273

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  • Loss or dysfunction of SLC1A2 has been implicated in multiple neurodegenerative and neuropsychiatric disorders, including AD where it is closely associated with cognitive decline.

    “Loss or dysfunction of SLC1A2 has been implicated in multiple neurodegenerative and neuropsychiatric disorders, including AD where it is closely associated with cognitive decline [126–131].”

    From Tau Ablation Rewires Brain Cell Programs in Health and Restores Function in Disease (2026) · cites this paper as [130]

    The Discussion (page unavailable) links SLC1A2 to tau pathology in Alzheimer’s disease and reports that lower expression in astrocytes and neurons was associated with worse cognitive performance. It does not address SLC1A2 loss or dysfunction across multiple neurodegenerative and neuropsychiatric disorders, so that broader part of the claim is unsupported by this source. (LLM, conf=0.85)

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  1. [55]1 Shannon Paul, 1 Markiel Andrew, 2 Ozier Owen, 2 Baliga Nitin S., 1 Wang Jonathan T., 2 Ramage Daniel, 2 Amin Nada, 5 Schwikowski Benno, 1, 5 and Ideker Trey2, 3, 4, Cytoscape: A Software Environment for Integrated Models, Genome Res. 13, 426 (2003). PMC403769 14597658

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Authors
Montal, V., Diez, I., Kim, C.-M., Orwig, W., Bueichekú, E., Gutiérrez-Zúñiga, R., Bejanin, A., Pegueroles, J., Dols-Icardo, O., Vannini, P., El-Fakhri, G., Johnson, K. A., Sperling, R. A., Fortea, J., & Sepulcre, J.
Affiliations
  • Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
  • Harvard University (US)
  • Universitat Autònoma de Barcelona (ES)
  • Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autonoma de Barcelona, Barcelona 08041, Spain.
  • Brigham and Women's Hospital (US)
Corresponding author
Sepulcre, Jorge
Venue
Science Translational Medicine
Published
2022-07-27
Volume
14
Issue
655
Pages
eabn7273-eabn7273
ISSN
  • 1946-6234 (ISSN-L)
  • 1946-6242
OpenAlex
W4288068424
Cited by
52
References
57
Citations by year
2026: 13 · 2025: 7 · 2024: 17 · 2023: 13 · 2022: 2
FWCI
6.03
Type
journal article
Language
en
Open access
Locations
  • Science Translational Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • TECNALIA Publications (Fundación TECNALIA Research & Innovation) (submittedVersion, public-domain)
Funders
  • National Institutes of Health (7p41eb022544-08)
  • National Institute on Aging (R01AG061083, R01AG061811, R01AG046396, R01AG027435, R01AG061445, P01AG036694)
  • National Institute of Biomedical Imaging and Bioengineering (P41-EB022544)
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 propagation, Alzheimer's disease, neurofibrillary tangles, brain network topology, apolipoprotein E, GLT-1, gene expression gradients, connectomics, cortical circuits
MeSH terms
Alzheimer Disease, Apolipoproteins E, Brain, Humans, Neurofibrillary Tangles, tau Proteins

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