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Related Experiment Videos

The FoxO code.

D R Calnan1, A Brunet

  • 1Department of Genetics, Stanford University, Stanford, CA 94350, USA.

Oncogene
|April 9, 2008
PubMed
Summary
This summary is machine-generated.

Forkhead box proteins (FoxO) regulate genes for longevity and tumor suppression. Their activity, controlled by environmental signals and post-translational modifications, is crucial for preventing aging and age-related diseases.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • The Forkhead box (FoxO) transcription factors are key regulators of cellular processes.
  • They influence longevity, tumor suppression, stress resistance, metabolism, cell cycle arrest, and apoptosis.
  • FoxO activity is modulated by environmental cues like insulin, growth factors, nutrients, and oxidative stress.

Purpose of the Study:

  • To explore the regulatory mechanisms of FoxO transcription factors.
  • To understand how environmental stimuli and post-translational modifications control FoxO activity.
  • To investigate the potential role of FoxO post-translational modifications as a 'molecular code'.

Main Methods:

  • Analysis of FoxO transcription factor regulation.
  • Investigation of subcellular localization, protein levels, DNA-binding, and transcriptional activity.

Related Experiment Videos

  • Examination of post-translational modifications (PTMs) such as phosphorylation, acetylation, and ubiquitination.

    • Main Results:

    • FoxO transcription factors mediate responses to environmental stimuli by altering gene expression.
    • Environmental signals regulate FoxO activity through changes in localization, protein levels, DNA binding, and transcriptional activity.
    • Post-translational modifications and protein interactions precisely control FoxO function.

    Conclusions:

    • FoxO transcription factors are critical for maintaining cellular homeostasis and preventing age-related diseases.
    • The intricate regulation of FoxO via PTMs and protein partners allows for rapid adaptation to environmental changes.
    • Understanding FoxO regulation is vital for developing strategies against aging, cancer, neurodegenerative diseases, and diabetes.