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Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis
08:34

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Published on: June 3, 2016

Akt, FoxO and regulation of apoptosis

Xinbo Zhang1, Naimei Tang, Timothy J Hadden

  • 1Karmanos Cancer Institute, Wayne State University, Detroit, MI 48201, USA.

Biochimica Et Biophysica Acta
|March 29, 2011
PubMed

Insights

The Akt-FoxO pathway regulates cell survival and proliferation. Understanding this signaling axis offers new strategies for developing cancer therapies by targeting cell growth and apoptosis.

Area of Science:

  • Molecular Biology
  • Cell Signaling
  • Oncology

Background:

  • Forkhead box O (FoxO) transcription factors are key regulators of cellular processes.
  • The serine/threonine protein kinase B (PKB)/Akt pathway influences cell proliferation and survival.
  • Akt-mediated phosphorylation of FoxOs inhibits their function, promoting cell survival and proliferation.

Purpose of the Study:

  • To review the mechanisms by which Akt and FoxO signaling regulate cell growth and survival.
  • To explore the role of the Akt-FoxO axis in cancer.
  • To identify potential therapeutic strategies targeting this pathway for cancer treatment.

Main Methods:

  • Literature review of studies on Akt and FoxO signaling pathways.
  • Analysis of the role of FoxO transcription factors in apoptosis and cell cycle regulation.
  • Examination of the cross-talk between FoxOs and other tumor suppressors like p53.

Main Results:

  • FoxOs induce apoptosis by upregulating pro-apoptotic proteins (Bcl2-family, Fas ligand, TRAIL) and cyclin-dependent kinase inhibitors (CDKIs).
  • FoxO signaling is crucial in various physiological and pathological conditions, including cancer.
  • The Akt-FoxO axis plays a critical role in tumor suppression and progression.

Conclusions:

  • The Akt-FoxO pathway is a critical regulator of cell fate, impacting cancer development and progression.
  • Targeting the Akt-FoxO signaling axis presents promising avenues for novel cancer therapies.
  • Further research into this pathway can lead to innovative strategies for combating cancer and aging.

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