The double-edged sword of Notch signaling in cancer

Andrew P South1, Raymond J Cho, Jon C Aster

  • 1Division of Cancer Research, Medical Research Institute, Ninewells Hospital and Medical School, Dundee DD1 9SY, UK.

Insights

Notch signaling plays a dual role in cancer, acting as both an oncogene and tumor suppressor based on cellular context. Recent genomic data reveal its complex involvement in human cancers, impacting disease progression and treatment strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Deep sequencing of cancer genomes has revealed extensive data on Notch signaling.
  • Notch signaling's role in cancer is complex and context-dependent.

Purpose of the Study:

  • To review the pathogenic and translational significance of Notch signaling in human cancers.
  • To discuss the dual oncogenic and tumor suppressive roles of Notch signaling.

Main Methods:

  • Review of recent deep sequencing cancer genome data.
  • Analysis of established and novel roles of Notch signaling in various cancers.

Main Results:

  • Notch signaling can be oncogenic or tumor suppressive depending on cellular context.
  • Findings were sometimes predicted by mouse models or developmental roles, but often were unanticipated.
  • Implication of Notch signaling in several human cancers.

Conclusions:

  • The context-specific roles of Notch signaling in cancer are critical for understanding its pathogenesis.
  • Translational significance lies in targeting Notch signaling for cancer therapy.

Related Concept Videos

Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
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Role Of Notch Signalling In Intestinal Stem Cell Renewal

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Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Interactions Between Signaling Pathways01:19

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mTOR Signaling and Cancer Progression

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mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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