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mTOR Signaling and Cancer Progression03:03

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Updated: Apr 20, 2026

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Cancer signaling beyond the genes.

Andre Levchenko1, Ralitsa R Madsen2

  • 1Yale Systems Biology Institute, Yale University, West Haven, CT, 06516, USA; Department of Biomedical Engineering, Yale University, New Haven, CT, 06520, USA.

Current Opinion in Cell Biology
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Summary
This summary is machine-generated.

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Area of Science:

  • Oncology
  • Cellular Biology
  • Systems Biology

Background:

  • Current cancer research primarily focuses on genetic mutations, influencing treatment strategies.
  • Single-cell analyses reveal phenotypic heterogeneity in genetically identical cancer cells.
  • Canonical driver mutations are often found in non-malignant tissues, posing a paradox.

Purpose of the Study:

  • To propose a new framework for understanding cancer.
  • To reconcile the paradoxes observed in cancer research.
  • To reframe the role of genetic mutations in cancer development and treatment.

Main Methods:

  • Utilizing insights from single-cell analyses.
  • Developing a theoretical framework based on cellular information processing.
  • Analyzing signaling dynamics and the impact of mutations on these dynamics.

Main Results:

  • Cancer can be viewed as a distinct tissue state with aberrant cellular information processing.
  • Genetic mutations act as context-dependent modifiers of cellular signaling codes, not simple on-off switches.
  • Phenotypic outcomes are determined by input-specific signaling dynamics, modulated by mutations.

Conclusions:

  • A new perspective on cancer as a dynamic signaling system.
  • Therapeutic success relies on restoring the fidelity of cellular signal encoding and decoding.
  • Moving beyond inhibiting isolated pathway components towards restoring system dynamics.