Results 11 to 20 of about 75,068 (344)
mTORC1 couples cyst(e)ine availability with GPX4 protein synthesis and ferroptosis regulation
Nature Communications, 2021 Glutathione peroxidase 4 (GPX4) utilizes glutathione (GSH) to detoxify lipid peroxidation and plays an essential role in inhibiting ferroptosis. As a selenoprotein, GPX4 protein synthesis is highly inefficient and energetically costly.
Yilei Zhang +16 more
semanticscholar +1 more source
Cancer Cell, 2014 A lysosome-based mechanism of amino acid sensing by mTORC1 regulated by Rag GTPases has emerged. In this issue of Cancer Cell, Thomas and colleagues propose a Golgi-based and Rag-independent mechanism mediated by the Rab1A GTPase. Furthermore, Rab1A overexpression in colorectal cancers correlates with mTORC1 activity and sensitivity to mTOR inhibitors.
Joan Sanchez-Gurmaches, David A. Guertin
openaire +3 more sources
Regulation of adiposity by mTORC1 [PDF]
Einstein (São Paulo), 2017 ABSTRACT Obesity is characterized by an excessive increase in the adipose tissue mass, and is associated with higher incidence of several chronic metabolic diseases, such as type 2 diabetes. Therefore, its increasing prevalence is a public health concern, and it is important to better understand its etiology to develop new therapeutic strategies ...
Magdalon, Juliana +1 more
openaire +6 more sources
A mTORC1-mediated cyst(e)ine sensing mechanism governing GPX4 synthesis and ferroptosis
Molecular & Cellular Oncology, 2021 Ferroptosis is a cell death mechanism triggered by lipid peroxidation. Our recent study linked cyst(e)ine availability with glutathione peroxidase 4 (GPX4) protein synthesis and ferroptosis mitigation via a Rag-mechanistic target of rapamycin complex 1 ...
Yuelong Yan, Guang Lei, Boyi Gan
doaj +1 more source
Inhibition of nonalcoholic fatty liver disease in mice by selective inhibition of mTORC1
Science, 2022 Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) remain without effective therapies. The mechanistic target of rapamycin complex 1 (mTORC1) pathway is a potential therapeutic target, but conflicting interpretations have ...
Bridget S. Gosis +17 more
semanticscholar +1 more source
Survival of intracellular pathogens in response to mTORC1- or TRPML1-TFEB-induced xenophagy
Autophagy Reports, 2023 Intracellular pathogens establish persistent infections by generating reservoirs that protect them from the action of antibiotics and the host immune response.
Mariana I. Capurro +3 more
doaj +1 more source
Crosstalk of Hedgehog and mTORC1 Pathways [PDF]
Cells, 2020 Hedgehog (Hh) signaling and mTOR signaling, essential for embryonic development and cellular metabolism, are both coordinated by the primary cilium. Observations from cancer cells strongly indicate crosstalk between Hh and mTOR signaling. This hypothesis is supported by several studies: Evidence points to a TGFβ-mediated crosstalk; Increased PI3K/AKT ...
Lasse Jonsgaard Larsen +1 more
openaire +4 more sources
Direct control of lysosomal catabolic activity by mTORC1 through regulation of V-ATPase assembly
Nature Communications, 2022 Mammalian cells can acquire exogenous amino acids through endocytosis and lysosomal catabolism of extracellular proteins. In amino acid-replete environments, nutritional utilization of extracellular proteins is suppressed by the amino acid sensor ...
Edoardo Ratto +6 more
semanticscholar +1 more source
Suppressing mTORC1 on the lysosome [PDF]
The EMBO Journal, 2017 The mechanistic target of rapamycin, mTOR, is a protein kinase that integrates environmental and nutritional inputs into regulation of cell growth and metabolism. Key outputs of mTOR signalling occur from the lysosome membrane in the form of the multi‐subunit mTOR complex 1 (mTORC1), which phosphorylates multiple targets. While class I phosphoinositide
Kay Oliver Schink +5 more
openaire +3 more sources
Osteocyte TSC1 promotes sclerostin secretion to restrain osteogenesis in mice [PDF]
Open Biology, 2019 Osteocytes secrete the glycoprotein sclerostin to inhibit bone formation by osteoblasts, but how sclerostin production is regulated in osteocytes remains unclear.
Wen Liu +14 more
doaj +1 more source