Cited by 15Metabolomics and Mass Spectrometry StudiesAlzheimer's disease research and treatmentsMass Spectrometry Techniques and Applications

Metabolomic and Proteomic Analysis of ApoE4-Carrying H4 Neuroglioma Cells in Alzheimer’s Disease Using OrbiSIMS and LC-MS/MS

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Lu, Li, Kotowska, Anna M., Kern, Stefanie, Fang, Min, Rudd, Timothy R., Alexander, Morgan R., Scurr, David J., Zhu, Zheying·2024·Analytical Chemistry

Abstract

Growing clinical evidence reveals that systematic molecular alterations in the brain occur 20 years before the onset of AD pathological features. Apolipoprotein E4 (ApoE4) is one of the most significant genetic risk factors for Alzheimer's disease (AD), which is not only associated with the AD pathological features such as amyloid-β deposition, phosphorylation of tau proteins, and neuroinflammation but is also involved in metabolism, neuron growth, and synaptic plasticity. Multiomics, such as metabolomics and proteomics, are applied widely in identifying key disease-related molecular alterations and disease-progression-related changes. Despite recent advances in the development of analytical technologies, screening the entire profile of metabolites remains challenging due to the numerous classes of compounds with diverse chemical properties that require different extraction processes for mass spectrometry. In this study, we utilized Orbitrap Secondary Ion Mass Spectrometry (OrbiSIMS) as a chemical filtering screening tool to examine molecular alterations in ApoE4-carried neuroglioma cells compared to wild-type H4 cells. The findings were compared using liquid chromatography (LC)-MS/MS targeted metabolomics analysis for the confirmation of specific metabolite classes. Detected alterations in peptide fragments by OrbiSIMS provided preliminary indications of protein changes. These were extensively analyzed through proteomics to explore ApoE4's impact on proteins. Our metabolomics approach, combining OrbiSIMS and LC-MS/MS, revealed disruptions in lipid metabolism, including glycerophospholipids and sphingolipids, as well as amino acid metabolism, encompassing alanine, aspartate, and glutamate metabolism; aminoacyl-tRNA biosynthesis; glutamine metabolism; and taurine and hypotaurine metabolism. Further LC-MS/MS proteomics studies confirmed the dysfunction in amino acid and tRNA aminoacylation metabolic processes, and highlighted RNA splicing alterations influenced by ApoE4.

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Crossref · 10.1021/acs.analchem.4c01201

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  • A study integrating metabolomics and proteomics in APOE ε4 carriers revealed disruptions in sphingolipid and glycerophospholipid pathways.

    “A study integrating metabolomics and proteomics in APOE ε4 carriers revealed disruptions in sphingolipid and glycerophospholipid pathways.”

    From Artificial intelligence-driven multi-omics approaches in Alzheimer's disease: Progress, challenges, and future directions (2025) · cites this paper as [293]

    The Results and Discussion report disrupted glycerophospholipids and sphingolipids in ApoE4-expressing H4 cells, and the paper also includes proteomic analysis. But the claim’s reference to “APOE ε4 carriers” implies people, whereas the Conclusions specify that the studied H4 neuroglioma cells were not derived from patients. (LLM, conf=0.88)

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  • The kernel-based model used in that study was non-transparent and performed poorly in non-European cohorts, highlighting the challenge of cross-population generalizability.

    “However, the kernel-based model used was non-transparent and performed poorly in non-European cohorts, highlighting the challenge of cross-population generalizability159,293.”

    From Artificial intelligence-driven multi-omics approaches in Alzheimer's disease: Progress, challenges, and future directions (2025) · cites this paper as [293]

    The Introduction describes metabolomic and proteomic analysis of ApoE4-related cellular mechanisms, not a kernel-based prediction model. Searches for a non-transparent kernel model and performance in non-European cohorts found no passage addressing either point; the relevant part of the paper has no page number in our copy. (LLM, conf=0.76)

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Authors
Lu, L., Kotowska, A. M., Kern, S., Fang, M., Rudd, T. R., Alexander, M. R., Scurr, D. J., & Zhu, Z.
Affiliations
  • University of Nottingham (GB)
  • Medicines and Healthcare products Regulatory Agency (GB)
Corresponding author
  • Scurr, David J.
  • Zhu, Zheying
Venue
Analytical Chemistry
Published
2024-07-11
Volume
96
Issue
29
Pages
11760-11770
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W4400560921
Cited by
15
References
39
Citations by year
2026: 4 · 2025: 10 · 2023: 1
FWCI
1.91
Type
journal article
Language
en
Open access
Locations
  • Analytical Chemistry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Repository@Nottingham (University of Nottingham) (submittedVersion, cc-by)
  • Repository@Nottingham (University of Nottingham) (submittedVersion)
Funders
Engineering and Physical Sciences Research Council (EP/P029868/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
Keywords
APOE ε4, Alzheimer's disease, metabolomics, proteomics, lipid metabolism, glycerophospholipids, sphingolipids, amino acid metabolism, aminoacyl-tRNA biosynthesis, glutamine metabolism, taurine and hypotaurine metabolism, RNA splicing
MeSH terms
Liquid Chromatography-Mass Spectrometry, Alzheimer Disease, Chromatography, Liquid, Glioma, Humans, Proteomics, Cell Line, Tumor, Apolipoprotein E4, Tandem Mass Spectrometry, Metabolomics

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