2006
DOI: 10.1152/physiol.00024.2006
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The mTOR Pathway in the Control of Protein Synthesis

Abstract: Signaling through mammalian target of rapamycin (mTOR) is activated by amino acids, insulin, and growth factors, and impaired by nutrient or energy deficiency. mTOR plays key roles in cell physiology. mTOR regulates numerous components involved in protein synthesis, including initiation and elongation factors, and the biogenesis of ribosomes themselves.

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Cited by 616 publications
(553 citation statements)
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“…Incubation with L‐Leu did not modify the phosphorylation status of PKB/Akt, a result in concordance with studies that propose a PKB/Akt independent activation of the anabolic actions of L‐Leu 2, 31, 32. In contrast, HMB significantly enhanced PKB/Akt phosphorylation, in agreement with previous studies 19, 21.…”
Section: Discussionsupporting
confidence: 91%
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“…Incubation with L‐Leu did not modify the phosphorylation status of PKB/Akt, a result in concordance with studies that propose a PKB/Akt independent activation of the anabolic actions of L‐Leu 2, 31, 32. In contrast, HMB significantly enhanced PKB/Akt phosphorylation, in agreement with previous studies 19, 21.…”
Section: Discussionsupporting
confidence: 91%
“…In contrast, HMB significantly enhanced PKB/Akt phosphorylation, in agreement with previous studies 19, 21. Therefore, under our experimental conditions, our results would support the idea that HMB acts mainly via the class I PI3K/Akt pathway,19 whereas it is described that L‐Leu exerts its action via the class III PI3K2, 31 that could mediate the activation of mTOR. In fact, it has been described that branched amino acids stimulate directly mTOR through a mechanism involving Rag GTPases 45.…”
Section: Discussionsupporting
confidence: 83%
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