Under nutrient-rich conditions, the nutrient-sensitive kinase mTOR (mammalian target of rapamycin) is recruited to the surface of lysosomes where it becomes activated and can promote cell growth and inhibit autophagy. In contrast, mTOR is inhibited in nutrient-poor conditions, leading to the induction of autophagy. The intracellular positioning of lysosomes in response to nutrient availability is now shown to orchestrate mTOR activation and regulate autophagy.
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Poüs, C., Codogno, P. Lysosome positioning coordinates mTORC1 activity and autophagy. Nat Cell Biol 13, 342–344 (2011). https://doi.org/10.1038/ncb0411-342
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DOI: https://doi.org/10.1038/ncb0411-342
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