Rebecca Cook
Faculty Member
Last active: 4/15/2019

mTORC1 and mTORC2 in cancer and the tumor microenvironment.

Kim LC, Cook RS, Chen J
Oncogene. 2017 36 (16): 2191-2201

PMID: 27748764 · PMCID: PMC5393956 · DOI:10.1038/onc.2016.363

The mammalian target of rapamycin (mTOR) is a crucial signaling node that integrates environmental cues to regulate cell survival, proliferation and metabolism, and is often deregulated in human cancer. mTOR kinase acts in two functionally distinct complexes, mTOR complex 1 (mTORC1) and 2 (mTORC2), whose activities and substrate specificities are regulated by complex co-factors. Deregulation of this centralized signaling pathway has been associated with a variety of human diseases including diabetes, neurodegeneration and cancer. Although mTORC1 signaling has been extensively studied in cancer, recent discoveries indicate a subset of human cancers harboring amplifications in mTORC2-specific genes as the only actionable genomic alterations, suggesting a distinct role for mTORC2 in cancer as well. This review will summarize recent advances in dissecting the relative contributions of mTORC1 versus mTORC2 in cancer, their role in tumor-associated blood vessels and tumor immunity, and provide an update on mTOR inhibitors.

MeSH Terms (8)

Animals Humans Mechanistic Target of Rapamycin Complex 1 Mechanistic Target of Rapamycin Complex 2 Multiprotein Complexes Neoplasms TOR Serine-Threonine Kinases Tumor Microenvironment

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