Cited by 773PI3K/AKT/mTOR signaling in cancerAutophagy in Disease and TherapyMetabolism, Diabetes, and Cancer

Regulation of mTORC1 by amino acids

Open access
Bar-Peled, Liron, Sabatini, David M.·2014·Trends in Cell Biology

Abstract

The mechanistic target of rapamycin complex I (mTORC1) is a central regulator of cellular and organismal growth, and hyperactivation of this pathway is implicated in the pathogenesis of many human diseases including cancer and diabetes. mTORC1 promotes growth in response to the availability of nutrients, such as amino acids, which drive mTORC1 to the lysosomal surface, its site of activation. How amino acid levels are communicated to mTORC1 is only recently coming to light by the discovery of a lysosome-based signaling system composed of Rags (Ras-related GTPases) and Ragulator v-ATPase, GATOR (GAP activity towards Rags), and folliculin (FLCN) complexes. Increased understanding of this pathway will not only provide insight into growth control but also into the human pathologies triggered by its deregulation.

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Crossref · 10.1016/j.tcb.2014.03.003

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  • When amino acids are above a threshold, Rags dimerise with the correct GTP loading status to allow mTORC1 complex assembly.

    “When amino acids are above a certain threshold these Rags dimerise with the correct GTP loading status in such a way as to allow mTORC1 complex assembly [101].”
  • The GTPase activity of RagGTPases is sensitive to intracellular amino acid content.

    “Through an unknown mechanism the GTPase activity of the RagGTPases (RagA/B and RagC/D) is sensitive to the intracellular amino acid content [101].”

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Research works printed but not linked: 1

  1. [38]Binda M Peli-Gulli MP Bonfils G Panchaud N Urban J Sturgill TW Loewith R De Virgilio C The Vam6 GEF controls TORC1 by activating the EGO complex Mol Cell 2009 35 563 573 published online EpubSep 11 (10.1016/j.molcel.2009.06.033) 19748353 · DOI

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Authors
Bar-Peled, L., & Sabatini, D. M.
Affiliations
Broad Institute (US)
Venue
Trends in Cell Biology
Publisher
Elsevier BV
Published
2014-07
Volume
24
Issue
7
Pages
400-406
ISSN
0962-8924 (ISSN-L)
OpenAlex
W1981206208
Cited by
773
References
86
Citations by year
2026: 22 · 2025: 28 · 2024: 45 · 2023: 43 · 2022: 41 · 2021: 76 · 2020: 77 · 2019: 80 · 2018: 72 · 2017: 98 · 2016: 79 · 2015: 81 · 2014: 30
FWCI
9.10
Type
journal article
Language
en
Open access
Locations
  • Trends in Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-nd)
  • PMC
Funders
  • U.S. Department of Defense (W81XWH-07-0448, W81XWH)
  • Howard Hughes Medical Institute
  • Damon Runyon Cancer Research Foundation
  • National Institutes of Health (W81XWH, AI47389)
  • National Institute on Drug Abuse (R03DA034602)
  • National Cancer Institute (CA103866, R01CA103866, R01CA129105)
  • National Institute of Allergy and Infectious Diseases (R37AI047389, AI47389), R01AI047389)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
mTORC1, amino acids, nutrient signaling, Rag GTPases, V-ATPase, folliculin, lysosomal signaling, growth regulation, cancer, diabetes mellitus
MeSH terms
Mechanistic Target of Rapamycin Complex 1, Amino Acids, Animals, Humans, Lysosomes, Signal Transduction, Multiprotein Complexes, TOR Serine-Threonine Kinases

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