Cited by 167Bioinformatics and Genomic NetworksMetabolomics and Mass Spectrometry StudiesMicrobial Metabolic Engineering and Bioproduction

Revealing disease-associated pathways by network integration of untargeted metabolomics

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Pirhaji, Leila, Milani, Pamela, Leidl, Mathias, Curran, Timothy, Avila-Pacheco, Julian, Clish, Clary B, White, Forest M, Saghatelian, Alan +1 more·2016·Nature Methods

Abstract

Uncovering the molecular context of dysregulated metabolites is crucial to understand pathogenic pathways. However, their system-level analysis has been limited owing to challenges in global metabolite identification. Most metabolite features detected by untargeted metabolomics carried out by liquid-chromatography-mass spectrometry cannot be uniquely identified without additional, time-consuming experiments. We report a network-based approach, prize-collecting Steiner forest algorithm for integrative analysis of untargeted metabolomics (PIUMet), that infers molecular pathways and components via integrative analysis of metabolite features, without requiring their identification. We demonstrated PIUMet by analyzing changes in metabolism of sphingolipids, fatty acids and steroids in a Huntington's disease model. Additionally, PIUMet enabled us to elucidate putative identities of altered metabolite features in diseased cells, and infer experimentally undetected, disease-associated metabolites and dysregulated proteins. Finally, we established PIUMet's ability for integrative analysis of untargeted metabolomics data with proteomics data, demonstrating that this approach elicits disease-associated metabolites and proteins that cannot be inferred by individual analysis of these data.

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  • PIUMet discovers dysregulated molecular pathways and components associated with changes in untargeted metabolomics data by analyzing a network built from curated protein-protein and protein-metabolite interactions (PPMI).

    “PIUMet discovers dysregulated molecular pathways and components associated with changes in untargeted metabolomics data by analyzing a network built from curated protein-protein and protein-metabolite interactions (PPMI).”

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Authors
Pirhaji, L., Milani, P., Leidl, M., Curran, T., Avila-Pacheco, J., Clish, C. B., White, F. M., Saghatelian, A., & Fraenkel, E.
Affiliations
  • Massachusetts Institute of Technology (US)
  • Harvard University (US)
  • Koch Institute for Integrative Cancer Research At MIT (US)
  • Broad Institute (US)
  • Salk Institute for Biological Studies (US)
Corresponding author
Fraenkel, Ernest
Venue
Nature Methods
Published
2016-08-01
Volume
13
Issue
9
Pages
770-776
ISSN
  • 1548-7091 (ISSN-L)
  • 1548-7105
OpenAlex
W2483024785
Cited by
167
References
4
Citations by year
2026: 15 · 2025: 13 · 2024: 8 · 2023: 11 · 2022: 17 · 2021: 14 · 2020: 21 · 2019: 19 · 2018: 24 · 2017: 22 · 2016: 3
FWCI
9.68
Type
journal article
Language
en
Open access
Locations
  • Nature Methods (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
Funders
  • National Cancer Institute (U54CA112967, U01CA184898, P30CA014195, P30CA014051)
  • National Institute of General Medical Sciences (R01GM089903)
  • National Institute of Neurological Disorders and Stroke (U54NS091046, R01NS089076)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
untargeted metabolomics, network integration, metabolite identification, sphingolipid metabolism, fatty acid metabolism, steroid metabolism, Huntington's disease, dysregulated proteins
MeSH terms
Machine Learning, Algorithms, Fatty Acids, Humans, Huntington Disease, Sphingolipids, Steroids, Neural Networks, Computer, Databases, Protein, Metabolic Networks and Pathways, Metabolomics

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