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Published on: November 4, 2025
Large-scale datasets uncovering cell signalling networks in cancer: context matters
Sumana Sharma1, Evangelia Petsalaki1
1EMBL-EBI, Wellcome Genome Campus, CB10 1SD, Hinxton, Cambridgeshire, UK.
Abstract:
Cell signaling pathways control the responses of cells to external perturbations. Depending on the cell's internal state, genetic background and environmental context, signaling pathways rewire to elicit the appropriate response. Such rewiring also can lead to cancer development and progression or cause resistance to therapies. While there exist static maps of annotated pathways, they do not capture these rewired networks. As large-scale datasets across multiple contexts and patients are becoming available the doors to infer and study context-specific signaling network have also opened. In this review, we will highlight the most recent approaches to study context-specific signaling networks using large-scale omics and genetic perturbation datasets, with a focus on studies of cancer and cancer-related pathways.
Insights
Cell signaling pathways dynamically rewire based on cellular context, influencing disease and treatment outcomes. New methods analyzing large datasets reveal these context-specific networks, particularly in cancer research.
Area of Science:
- Molecular biology
- Systems biology
- Cancer research
Background:
- Cell signaling pathways regulate cellular responses to stimuli.
- Pathway rewiring is crucial for cellular adaptation but can drive cancer and therapy resistance.
- Existing pathway maps lack context-specific network information.
Purpose of the Study:
- To review recent approaches for studying context-specific cell signaling networks.
- To highlight the application of these methods in cancer research.
- To emphasize the use of large-scale omics and genetic perturbation data.
Main Methods:
- Analysis of large-scale omics datasets (genomics, transcriptomics, proteomics).
- Integration of genetic perturbation data (e.g., CRISPR screens).
- Computational inference of context-specific signaling networks.
Main Results:
- Emerging methods enable the mapping of dynamic, context-dependent signaling pathways.
- These approaches reveal how rewiring contributes to cancer development and therapeutic resistance.
- Studies focus on understanding signaling alterations across diverse cancer types and patient data.
Conclusions:
- Studying context-specific signaling networks is essential for understanding cellular behavior in disease.
- Advanced computational and data integration methods are key to uncovering these dynamic networks.
- This research area holds significant promise for developing novel cancer therapies.
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