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The PI3K/AKT/mTOR interactive pathway

Tulin Ersahin1, Nurcan Tuncbag, Rengul Cetin-Atalay

  • 1Cancer Systems Biology Laboratory, Graduate School of Informatics, ODTU, 06800 Ankara, Turkey. rengul@metu.edu.tr.

Molecular Biosystems
|April 30, 2015
PubMed

Insights

The phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of the rapamycin (mTOR) pathway is crucial in cancer. Understanding its complex network aids in developing personalized combination therapies for improved cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Signaling Pathways

Background:

  • The PI3K/AKT/mTOR pathway is frequently altered in various cancers, regulating key cellular functions like survival and proliferation.
  • This pathway interacts with compensatory signaling networks, notably the RAF/MEK/ERK pathway, influencing cancer progression.
  • Current targeted therapies show limited success due to tumor heterogeneity, highlighting the need for improved strategies.

Purpose of the Study:

  • To present a comprehensive network model of the PI3K/AKT/mTOR pathway.
  • To elucidate the intricate crosstalk between the PI3K/AKT/mTOR pathway and compensatory signaling networks.
  • To provide a tool for detailed study of AKT signaling and enhance personalized combinatorial therapeutic strategies.

Main Methods:

  • Network analysis of the PI3K/AKT/mTOR signaling pathway.
  • Integration of data on upstream regulators and downstream effectors.
  • Mapping of crosstalk with compensatory pathways like RAF/MEK/ERK.

Main Results:

  • A detailed map of the PI3K/AKT/mTOR network, including its interactions.
  • Identification of key crosstalk points with other signaling pathways.
  • Demonstration of the network's utility in understanding AKT signaling.

Conclusions:

  • The PI3K/AKT/mTOR pathway's complexity necessitates comprehensive network analysis.
  • Understanding pathway crosstalk is vital for overcoming therapeutic challenges.
  • This network model can guide the development of more effective personalized cancer treatments.

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