Cited by 131PI3K/AKT/mTOR signaling in cancerTuberous Sclerosis Complex ResearchHippo pathway signaling and YAP/TAZ

Growth Control Under Stress: mTOR Regulation through the REDD1-TSC Pathway

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Ellisen, Leif W.·2005·Cell Cycle

Abstract

Dysregulated signaling by the checkpoint kinase TOR (target of rapamycin) has been linked to numerous human cancers. The tuberous sclerosis tumor suppressors TSC1 and TSC2 form a protein complex that integrates and transmits cellular growth factor and stress signals to negatively regulate TOR activity. Several recent reports have identified the stress response gene REDD1 as an essential regulator of TOR activity through the TSC1/2 complex in both Drosophila and mammalian cells. REDD1 is induced in response both to hypoxia and energy stress, and cells that lack REDD1 exhibit highly defective TOR regulation in response to either of these stress signals. While the precise mechanism of REDD1 function remains to be determined, the finding that REDD1-dependent TOR regulation contributes to cell growth/cell size control in flies and mammals suggests that abnormalities of REDD1-mediated signaling might disrupt energy homeostasis and/or promote tumorigenesis.

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Authors
Ellisen, L. W.
Affiliations
Harvard University (US)
Corresponding author
Ellisen, Leif W.
Venue
Cell Cycle
Published
2005-08-22
Volume
4
Issue
11
Pages
1500-1502
ISSN
  • 1538-4101 (ISSN-L)
  • 1551-4005
OpenAlex
W2024102254
Cited by
131
References
27
Citations by year
2026: 7 · 2025: 2 · 2024: 4 · 2022: 5 · 2021: 3 · 2020: 5 · 2019: 3 · 2018: 8 · 2017: 9 · 2016: 7 · 2015: 3 · 2014: 6 · 2013: 15 · 2012: 13
FWCI
2.77
Type
journal article
Language
en
Open access
Locations
  • Cell Cycle (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Cancer Society
  • Avon Foundation for Women
  • National Cancer Institute (R01CA122589)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Health Sciences › Medicine › Physiology › Tuberous Sclerosis Complex Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
Keywords
REDD1, mTOR, TOR signaling, cell growth regulation, cell size control, hypoxia, energy stress, stress response, energy homeostasis, carcinogenesis, Drosophila
MeSH terms
Tuberous Sclerosis Complex 1 Protein, Tuberous Sclerosis Complex 2 Protein, Animals, Cell Transformation, Neoplastic, Humans, Protein Kinases, Transcription Factors, Signal Transduction, Oxidative Stress, Tumor Suppressor Proteins, TOR Serine-Threonine Kinases

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