Journal
ADVANCES IN NUTRITION
Volume 13, Issue 5, Pages 1882-1900Publisher
OXFORD UNIV PRESS
DOI: 10.1093/advances/nmac055
Keywords
mTORC1; nutrient; signal transduction; metabolism; metabolic diseases
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mTORC1 is a multi-protein complex found in eukaryotes that regulates cell growth and metabolism by sensing various extracellular and intracellular signals. Overactivation of mTORC1 is associated with the occurrence of metabolic diseases, making it an important target for therapeutic strategies.
Mechanistic target of rapamycin complex 1 (mTORC1) is a multi-protein complex widely found in eukaryotes. It serves as a central signaling node to coordinate cell growth and metabolism by sensing diverse extracellular and intracellular inputs, including amino acid-, growth factor-, glucose-, and nucleotide-related signals. It is well documented that mTORC1 is recruited to the lysosomal surface, where it is activated and, accordingly, modulates downstream effectors involved in regulating protein, lipid, and glucose metabolism. mTORC1 is thus the central node for coordinating the storage and mobilization of nutrients and energy across various tissues. However, emerging evidence indicated that the overactivation of mTORC1 induced by nutritional disorders leads to the occurrence of a variety of metabolic diseases, including obesity and type 2 diabetes, as well as cancer, neurodegenerative disorders, and aging. That the mTORC1 pathway plays a crucial role in regulating the occurrence of metabolic diseases renders it a prime target for the development of effective therapeutic strategies. Here, we focus on recent advances in our understanding of the regulatory mechanisms underlying how mTORC1 integrates metabolic inputs as well as the role of mTORC1 in the regulation of nutritional and metabolic diseases. Statement of Significance: Herein, we review recent advances of the regulatory mechanisms underlying how mTORC1 integrates metabolic inputs. Our review provides recent advances of the role of mTORC1 in the development of nutritional and metabolic diseases.
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