The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Leucine and mTORC1: a complex relationship
Abstract
Amino acid availability is a rate-limiting factor in the regulation of protein synthesis. When amino acid supplies become restricted, mammalian cells employ homeostatic mechanisms to rapidly inhibit processes such as protein synthesis, which demands high levels of amino acids. Muscle cells in particular are subject to high protein turnover rates to maintain amino acid homeostasis. Mammalian target of rapamycin complex 1 (mTORC1) is an evolutionary conserved multiprotein complex that coordinates a network of signaling cascades and functions as a key mediator of protein translation, gene transcription, and autophagy. Signal transduction through mTORC1, which is centrally involved in muscle growth through enhanced protein translation, is governed by intracellular amino acid supply. The branched-chain amino acid leucine is critical for muscle growth and acts in part through activation of mTORC1. Recent research has revealed that mTORC1 signaling is coordinated primarily at the lysosomal membranes. This discovery has sparked a wealth of research in this field, revealing several different signaling molecules involved in transducing the amino acid signal to mTORC1, including the Rag GTPases, MAP4K3, and Vps34/ULK1. This review evaluates the current knowledge regarding cellular mechanisms that control and sense the intracellular amino acid pool. We discuss the role of leucine and mTORC1 in the regulation of amino acid transport via the system L and system A transporters such as LAT1 and SNAT2, as well as protein degradation via autophagic and proteasomal pathways. We also describe the complexities of energy homeostasis via AMPK and cell receptor-mediated growth signals that also converge on mTORC1. Leucine is a particularly potent regulator of protein turnover, to the extent where leucine stimulation alone is sufficient to stimulate mTORC1 signal transduction. The significance of leucine in this context is not yet known; however, recent advancements in this area will also be covered within this review.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
AMPK Phosphorylation of Raptor Mediates a Metabolic Checkpoint
Gwinn, D. M., Shackelford, D. B., Egan, D. F., Mihaylova, M. M., Mery, A., Vasquez, D. S., Turk, B. E., & Shaw, R. J. (2008) · Molecular Cell · doi:10.1016/j.molcel.2008.03.003 · Cited by 3,849
Newgard, C. B., An, J., Bain, J. R., Muehlbauer, M. J., Stevens, R. D., Lien, L. F., Haqq, A. M., Shah, S. H., Arlotto, M., Slentz, C. A., et al. (2009) · Cell Metabolism · doi:10.1016/j.cmet.2009.02.002 · Cited by 3,165
The Rag GTPases Bind Raptor and Mediate Amino Acid Signaling to mTORC1
Sancak, Y., Peterson, T. R., Shaul, Y. D., Lindquist, R. A., Thoreen, C. C., Bar-Peled, L., & Sabatini, D. M. (2008) · Science · doi:10.1126/science.1157535 · Cited by 2,773
Sancak, Y., Bar-Peled, L., Zoncu, R., Markhard, A. L., Nada, S., & Sabatini, D. M. (2010) · Cell · doi:10.1016/j.cell.2010.02.024 · Cited by 2,464 · cited 7×
“This is interesting when you consider that Sancak et al. (88) identified mTORC1 as localizing to Rab7 positive endosomes upon amino acid stimulation.”
BackgroundInfluentialNutrient-dependent mTORC1 Association with the ULK1–Atg13–FIP200 Complex Required for Autophagy
Hosokawa, N., Hara, T., Kaizuka, T., Kishi, C., Takamura, A., Miura, Y., Iemura, S.-I., Natsume, T., Takehana, K., Yamada, N., et al. (2009) · Molecular Biology of the Cell · doi:10.1091/mbc.e08-12-1248 · Cited by 2,076
ULK-Atg13-FIP200 Complexes Mediate mTOR Signaling to the Autophagy Machinery
Jung, C. H., Jun, C. B., Ro, S.-H., Kim, Y.-M., Otto, N. M., Cao, J., Kundu, M., & Kim, D.-H. (2009) · Molecular Biology of the Cell · doi:10.1091/mbc.e08-12-1249 · Cited by 2,025
Rheb GTPase is a direct target of TSC2 GAP activity and regulates mTOR signaling
Inoki, K., Li, Y., Xu, T., & Guan, K.-L. (2003) · Genes & Development · doi:10.1101/gad.1110003 · Cited by 1,911
Absence of S6K1 protects against age- and diet-induced obesity while enhancing insulin sensitivity
Um, S. H., Frigerio, F., Watanabe, M., Picard, F., Joaquin, M., Sticker, M., Fumagalli, S., Allegrini, P. R., Kozma, S. C., Auwerx, J., et al. (2004) · Nature · doi:10.1038/nature02866 · Cited by 1,677
Regulation of TORC1 by Rag GTPases in nutrient response
Kim, E., Goraksha-Hicks, P., Li, L., Neufeld, T. P., & Guan, K.-L. (2008) · Nature Cell Biology · doi:10.1038/ncb1753 · Cited by 1,349
Mixed muscle protein synthesis and breakdown after resistance exercise in humans
Phillips, S. M., Tipton, K. D., Aarsland, A., Wolf, S. E., & Wolfe, R. R. (1997) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.1997.273.1.e99 · Cited by 1,132
Cited by
Branched-chain amino acids in metabolic signalling and insulin resistance
Lynch, C. J., & Adams, S. H. (2014) · Nature Reviews Endocrinology · doi:10.1038/nrendo.2014.171 · Cited by 1,461
Mammalian/mechanistic target of rapamycin (mTOR) complexes in neurodegeneration
Querfurth, H., & Lee, H.-K. (2021) · Molecular Neurodegeneration · doi:10.1186/s13024-021-00428-5 · Cited by 288
Linking diet to acne metabolomics, inflammation, and comedogenesis: an update
Melnik, B. (2015) · Clinical, Cosmetic and Investigational Dermatology · doi:10.2147/ccid.s69135 · Cited by 259
New strategies in sport nutrition to increase exercise performance
Close, G. L., Hamilton, D. L., Philp, A., Burke, L. M., & Morton, J. P. (2016) · Free Radical Biology and Medicine · doi:10.1016/j.freeradbiomed.2016.01.016 · Cited by 221
The Gut-Immune-Brain Axis in Autism Spectrum Disorders; A Focus on Amino Acids
van Sadelhoff, J. H. J., Perez Pardo, P., Wu, J., Garssen, J., van Bergenhenegouwen, J., Hogenkamp, A., Hartog, A., & Kraneveld, A. D. (2019) · Frontiers in Endocrinology · doi:10.3389/fendo.2019.00247 · Cited by 71
Metadata
- Authors
- Dodd, K. M., & Tee, A. R.
- Venue
- American Journal of Physiology-Endocrinology and Metabolism
- Publisher
- American Physiological Society
- Published
- 2012-06-01
- Volume
- 302
- Issue
- 11
- Pages
- E1329-E1342
- ISSN
- 0193-1849 (ISSN-L)
- 1522-1555
- OpenAlex
- W2021309399
- Cited by
- 293
- References
- 28
- FWCI
- 10.61
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Leucine and mTORC1: a complex relationship. https://app.cochat.ai/papers/10.1152/ajpendo.00525.2011
- The paper
- Dodd, K. M., & Tee, A. R. (2012). Leucine and mTORC1: a complex relationship. American Journal of Physiology-Endocrinology and Metabolism. https://doi.org/10.1152/ajpendo.00525.2011
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
