Mammalian Target of Rapamycin

Mammalian target of rapamycin inhibition.

The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that has been increasingly recognized as key to the regulation of cell growth and proliferation. mTOR either directly or indirectly regulates translation initiation, actin organization, tRNA synthesis, ribosome biogenesis, and many other key cell maintenance functions, including protein degradation and transcription functions...

Regulating Mammalian Target of Rapamycin

Mammalian Target of Rapamycin (mTOR) Inhibitor Pathway

Mammalian target of rapamycin (mTOR) is a crucial mediator of tumor progression and may be a promising target in a significant proportion of patients with breast cancer. More specifically, the phosphatidylinositol-3kinase (PI3K)/protein kinase B (AKT)/mTOR pathway plays a critical role in multiple cellular functions including metabolism, proliferation, growth and survival. This pathway is higly...

Differential effects of rapamycin on mammalian target of rapamycin signaling functions in mammalian cells.

Rapamycin and its analogues have shown promising anticancer activities in preclinical and clinical studies. However, the mechanism whereby rapamycin inhibits signaling through the mammalian target of rapamycin (mTOR) remains poorly understood. Here, we show that the FKBP12/rapamycin complex is an essentially irreversible inhibitor of mTOR kinase activity in vitro. However, we observe no suppres...

Rapamycin Signaling Functions in Mammalian Cells Differential Effects of Rapamycin on Mammalian Target of Updated Version

Rapamycin and its analogues have shown promising anticancer activities in preclinical and clinical studies. However, the mechanism whereby rapamycin inhibits signaling through the mammalian target of rapamycin (mTOR) remains poorly understood. Here, we show that the FKBP12/ rapamycin complex is an essentially irreversible inhibitor of mTOR kinase activity in vitro. However, we observe no suppre...