Cited by 16Bioinformatics and Genomic NetworksGene Regulatory Network AnalysisBiomedical Text Mining and Ontologies

KCML: a machine-learning framework for inference of multi-scale gene functions from genetic perturbation screens

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Sailem, Heba Z, Rittscher, Jens, Pelkmans, Lucas·2020·Molecular Systems Biology

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Abstract

Characterising context-dependent gene functions is crucial for understanding the genetic bases of health and disease. To date, inference of gene functions from large-scale genetic perturbation screens is based on ad hoc analysis pipelines involving unsupervised clustering and functional enrichment. We present Knowledge- and Context-driven Machine Learning (KCML), a framework that systematically predicts multiple context-specific functions for a given gene based on the similarity of its perturbation phenotype to those with known function. As a proof of concept, we test KCML on three datasets describing phenotypes at the molecular, cellular and population levels and show that it outperforms traditional analysis pipelines. In particular, KCML identified an abnormal multicellular organisation phenotype associated with the depletion of olfactory receptors, and TGFβ and WNT signalling genes in colorectal cancer cells. We validate these predictions in colorectal cancer patients and show that olfactory receptors expression is predictive of worse patient outcomes. These results highlight KCML as a systematic framework for discovering novel scale-crossing and context-dependent gene functions. KCML is highly generalisable and applicable to various large-scale genetic perturbation screens.

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  • The KCML study found examples where genes annotated to the same higher-scale process perform different functions at lower scales, reflecting the hierarchical organization of cellular subsystems.

    “The study found examples where genes annotated to the same higher-scale process perform different functions at lower scales, reflecting the hierarchical organization of cellular subsystems.”

    From Mapping the multiscale structure of biological systems (2021) · cites this paper as Sailem et al., 2020

  • In KCML, a support vector machine classifier for each GO biological process learned to distinguish between phenotypic profiles of genes annotated to that process versus random subsets of other genes.

    “In this approach, a support vector machine (SVM) classifier for each GO biological process learned to distinguish between phenotypic profiles of genes annotated to that process versus random subsets of other genes.”

    From Mapping the multiscale structure of biological systems (2021) · cites this paper as Sailem et al., 2020

  • KCML is a strategy for using a hierarchical approach to predict gene functions from high-throughput gene perturbation screening.

    “Finally, Knowledge- and Context-driven Machine Learning (KCML) is a recently developed strategy for using a hierarchical approach to predict gene functions from high-throughput gene perturbation screening (Sailem et al., 2020).”

    From Mapping the multiscale structure of biological systems (2021) · cites this paper as Sailem et al., 2020

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Authors
Sailem, H. Z., Rittscher, J., & Pelkmans, L.
Affiliations
  • University of Oxford (GB)
  • University of Zurich (CH)
Corresponding author
Sailem, Heba Z
Venue
Molecular Systems Biology
Published
2020-03-01
Volume
16
Issue
3
Pages
e9083-e9083
ISSN
1744-4292 (ISSN-L)
OpenAlex
W3010525763
Cited by
16
References
74
Citations by year
2026: 4 · 2025: 1 · 2023: 2 · 2022: 1 · 2021: 3 · 2020: 5
FWCI
0.89
Type
journal article
Language
en
Open access
Locations
  • Molecular Systems Biology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Wellcome Trust (204724/Z/16/Z)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biomedical Text Mining and Ontologies
Keywords
gene function prediction, olfactory receptors, colorectal cancer, TGF-beta signaling, Wnt signaling, clinical outcome prediction
MeSH terms
Humans, Phenotype, Prognosis, Colorectal Neoplasms, Signal Transduction, Gene Expression Regulation, Neoplastic, Transforming Growth Factor beta, Receptors, Odorant, HCT116 Cells, Cell Line, Tumor, Systems Biology, Gene Regulatory Networks, Support Vector Machine, Wnt Signaling Pathway, Neoplasm Grading, MCF-7 Cells

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