Transcriptional Control of Cellular Metabolism by mTOR Signaling

Tumor cells are characterized by adaptations in cellular metabolism that afford growth and proliferative advantages over normal cells and, thus, contribute to cancer pathophysiology. There is an increasing appreciation of the fact that oncogenic signaling controls the metabolic reprogramming of canc...

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Published in:Cancer research (Chicago, Ill.) Ill.), 2011-04, Vol.71 (8), p.2815-2820
Main Authors: YECIES, Jessica L, MANNING, Brendan D
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description Tumor cells are characterized by adaptations in cellular metabolism that afford growth and proliferative advantages over normal cells and, thus, contribute to cancer pathophysiology. There is an increasing appreciation of the fact that oncogenic signaling controls the metabolic reprogramming of cancer cells; however, the mechanisms and critical players are only beginning to be elucidated. Recent studies have revealed that mTOR complex 1 (mTORC1), a master regulator of cell growth and proliferation downstream of oncogenic signaling pathways, controls specific aspects of cellular metabolism through the induction of metabolic gene expression. mTORC1 activation is sufficient to promote flux through glycolysis and the oxidative branch of the pentose phosphate pathway, as well as to stimulate de novo lipogenesis, all processes that are important in tumor biology. As mTORC1 signaling is aberrantly elevated in the majority of genetic tumor syndromes and sporadic cancers, this pathway is poised to be a major driver of the metabolic conversion of tumor cells.
doi_str_mv 10.1158/0008-5472.can-10-4158
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subjects Animals
Antineoplastic agents
Biological and medical sciences
Humans
Mechanistic Target of Rapamycin Complex 1
Medical sciences
Multiprotein Complexes
Pharmacology. Drug treatments
Proteins - genetics
Proteins - metabolism
Signal Transduction
TOR Serine-Threonine Kinases - genetics
TOR Serine-Threonine Kinases - metabolism
Transcription, Genetic
Tumors
title Transcriptional Control of Cellular Metabolism by mTOR Signaling
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