Cited by 15Alzheimer's disease research and treatmentsAdvanced Proteomics Techniques and ApplicationsDementia and Cognitive Impairment Research

Co-expression network analysis of human tau-transgenic mice reveals protein modules associated with tau-induced pathologies

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Tsumagari, Kazuya, Sato, Yoshiaki, Shimozawa, Aki, Aoyagi, Hirofumi, Okano, Hideyuki, Kuromitsu, Junro·2022·iScience

Abstract

Abnormally accumulated tau protein aggregates are one of the hallmarks of neurodegenerative diseases, including Alzheimer's disease (AD). In order to investigate proteomic alteration driven by tau aggregates, we implemented quantitative proteomics to analyze disease model mice expressing human MAPT P301S transgene (hTau-Tg) and quantified more than 9,000 proteins in total. We applied the weighted gene co-expression analysis (WGCNA) algorithm to the datasets and explored protein co-expression modules that were associated with the accumulation of tau aggregates and were preserved in proteomes of AD brains. This led us to identify four modules with functions related to neuroinflammatory responses, mitochondrial energy production processes (including the tricarboxylic acid cycle and oxidative phosphorylation), cholesterol biosynthesis, and postsynaptic density. Furthermore, a phosphoproteomics study uncovered phosphorylation sites that were highly correlated with these modules. Our datasets represent resources for understanding the molecular basis of tau-induced neurodegeneration, including AD.

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Crossref · 10.1016/j.isci.2022.104832

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  • WGCNA enhanced network granularity by identifying modules of highly co-expressed genes, offering biologically relevant insights into co-regulated pathways implicated in AD.

    “Subsequently, methods such as Weighted Gene Co-expression Network Analysis (WGCNA) enhanced network granularity by identifying modules of highly co-expressed genes, offering biologically relevant insights into co-regulated pathways implicated in AD244,299.”

    From Artificial intelligence-driven multi-omics approaches in Alzheimer's disease: Progress, challenges, and future directions (2025) · cites this paper as [244]

    The Introduction describes WGCNA as organizing highly co-expressed proteins into modules that can be linked to AD-related traits. The Results report protein modules associated with tau pathology, and the Discussion says four were preserved in AD brains. The cited study analyzed proteins, not modules of co-expressed genes as the citing sentence states. (LLM, conf=0.85)

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Authors
Tsumagari, K., Sato, Y., Shimozawa, A., Aoyagi, H., Okano, H., & Kuromitsu, J.
Affiliations
  • Keio University (JP)
  • Eisai (Japan) (JP)
Corresponding author
  • Tsumagari, Kazuya
  • Kuromitsu, Junro
Venue
iScience
Publisher
Elsevier BV
Published
2022-08
Volume
25
Issue
8
Pages
104832
ISSN
2589-0042 (ISSN-L)
OpenAlex
W4289857136
Cited by
15
References
87
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 5
FWCI
2.01
Type
journal article
Language
en
Open access
Locations
  • iScience (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • RIKEN
  • Japan Agency for Medical Research and Development (JP17pc0101006)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
tau protein, tau aggregates, Alzheimer's disease, neuroinflammation, mitochondrial bioenergetics, TCA cycle, oxidative phosphorylation, cholesterol biosynthesis, postsynaptic density, protein phosphorylation, proteomic profiling

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