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Stress kinase signaling in cancer: fact or fiction?

Ulrike Rennefahrt1, Manickam Janakiraman, Robert Ollinger

  • 1Institut für Medizinische Strahlenkunde und Zellforschung, University of Würzburg, Würzburg, Germany.

Cancer Letters
|December 15, 2004
PubMed

Insights

Cancer involves genetic changes in cell signaling pathways. This review examines the role of stress-activated kinases (SAKs) like Jun N-terminal kinases and p38 in cancer development and transformation.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Signaling

Background:

  • Cancer arises from genetic alterations in intracellular signaling pathways.
  • The cytoplasmic Ras-Raf MEK-ERK cascade is frequently mutated in tumors, driving transformation.
  • Emerging evidence implicates stress-activated protein kinases (SAPKs) and p38 kinases in cancer.

Purpose of the Study:

  • To review the role of stress kinases in cancer.
  • To discuss the mechanisms by which stress kinases regulate tumor transformation.

Main Methods:

  • Literature review of in vitro and in vivo studies.
  • Analysis of signaling pathways involved in cellular transformation.
  • Examination of kinase activation in response to stimuli and in tumors.

Main Results:

  • The Ras-Raf MEK-ERK pathway is necessary and sufficient for cellular transformation.
  • SAPKs and p38 kinases are activated by various stimuli, including cytokines and pathogens, and are observed in tumors.
  • These kinases play a significant role in the transformation process.

Conclusions:

  • Stress kinases are implicated in the pathogenesis of cancer.
  • Understanding the mechanisms of stress kinase regulation in cancer is crucial for therapeutic development.

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