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Common corruption of the mTOR signaling network in human tumors

S Menon1, B D Manning

  • 1Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA 02115, USA.

Oncogene
|December 4, 2009
PubMed

Insights

Aberrant mammalian target of rapamycin (mTOR) signaling disconnects cell growth signals, driving cancer. Understanding mTOR

Area of Science:

  • Cellular Biology
  • Oncology
  • Molecular Biology

Background:

  • The mammalian target of rapamycin (mTOR) pathway regulates cell growth, proliferation, and survival in response to various signals.
  • Aberrant activation of mTOR signaling disrupts normal cellular processes, contributing to the development of genetic tumor syndromes and cancers.

Purpose of the Study:

  • To review the regulatory network upstream of mTOR, including oncogenes and tumor suppressors.
  • To highlight human cancers with activated mTOR signaling and discuss its role in tumor growth advantage.
  • To explore how distinct oncogenic events lead to varied clinical outcomes and influence therapeutic strategies for mTOR-dysregulated cancers.

Main Methods:

  • Literature review of oncogenes, tumor suppressors, and mTOR signaling pathways.
  • Analysis of human cancer data associated with mTOR activation.
  • Discussion of the implications of mTOR pathway complexity for cancer therapy.

Main Results:

  • Dysregulated mTOR signaling provides tumors a selective growth advantage.
  • Activation of mTOR signaling is implicated in the pathophysiology of numerous cancers.
  • Distinct oncogenic events activating mTOR can result in diverse clinical outcomes.

Conclusions:

  • The complex regulatory network upstream of mTOR and its dysregulation in cancer necessitate tailored therapeutic approaches.
  • Targeting mTOR signaling is a potential strategy for treating various cancers.
  • Further research into mTOR pathway complexity may reveal novel therapeutic targets and improve patient outcomes.

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