Results 91 to 100 of about 102,812 (293)

Mechanosensitive mTORC1 signaling maintains lymphatic valves

Journal of Cell Biology, 2023
Homeostatic maintenance and repair of lymphatic vessels are essential for health. We investigated the dynamics and the molecular mechanisms of lymphatic endothelial cell (LEC) renewal in adult mesenteric quiescent lymphatic vasculature using label-retention, lineage tracing, and cell ablation strategies.
Cansaran Saygili Demir, Amélie Sabine, Muyun Gong, Olivier Dormond, Tatiana V. Petrova   +4 more
openaire   +3 more sources

Thioredoxin-1 maintains mechanistic target of rapamycin (mTOR) function during oxidative stress in cardiomyocytes [PDF]

, 2017
Thioredoxin 1 (Trx1) is a 12-kDa oxidoreductase that catalyzes thiol-disulfide exchange reactions to reduce proteins with disulfide bonds. As such, Trx1 helps protect the heart against stresses, such as ischemia and pressure overload.
Bhat, Santosh, Chen, Yanbin, Chin, Adave, Hirabayashi, Yoko, Hirata, Tsuyoshi, Nagarajan, Narayani, Naito, Daichi, Oka, Shin-Ichi, Sadoshima, Junichi, Saito, Toshiro, Schesing, Kevin, Sciarretta, Sebastiano, Shao, Dan, Suzuki, Wataru, Yaginuma, Hiroaki, Yodoi, Junji, Zhai, Peiyong   +16 more
core   +1 more source

Mapping the Cerebral Organoid Landscape: A Systematic Review of Preclinical 3D Models in Neuroscience

Advanced Healthcare Materials, EarlyView.
Cerebral organoids are transforming brain research, yet the field remains fragmented. This comprehensive systematic review maps 738 studies published between 2014 and 2024 to uncover trends, gaps, and opportunities across neuroscience. Introducing OrganoidMap—an interactive, open‐access platform to explore and compare models—this work enables ...
Anna Wolfram, Vanessa Arnold, Maik Wolfram‐Schauerte, Anastassiya Moskalchuk, Caroline Trust, Marie Vontz, Mona Scheurenbrand, Vijayasarathy Sampath‐Kumar, Sogand Ahari, Carlos Romero‐Nieto, Lisa Sevenich   +10 more
wiley   +1 more source

miRNAs mediate mTORC1 effects [PDF]

Science, 2020
Signal Transduction Too much signaling by the mammalian target of rapamycin complex 1 (mTORC1) protein kinase complex is a bad thing in part because it enhances production of particular microRNAs (miRNAs). Mouse cells engineered to lack the mTORC1 inhibitor component Tsc1 and thus exhibit excessive mTORC1 signaling also showed altered glucose ...
openaire   +1 more source

Muscle inactivation of mTOR causes metabolic and dystrophin defects leading to severe myopathy [PDF]

, 2009
Mammalian target of rapamycin (mTOR) is a key regulator of cell growth that associates with raptor and rictor to form the mTOR complex 1 (mTORC1) and mTORC2, respectively.
Baas, Dominique, Bauché, Stéphanie, Bigard, Xavier, Conjard-Duplany, Agnès, Corneloup, Claudine, Defour, Aurélia, Ferrier, Bernard, Ferry, Arnaud, Freyssenet, Damien, Gangloff, Yann-Gaël, Hantaï, Daniel, Koulmann, Nathalie, Kozma, Sara C., Le-Marchand-Brustel, Yannick, Mazelin, Laetitia, Moncollin, Vincent, Mueller, Matthias, Pende, Mario, Richard-Bulteau, Hélène, Risson, Valérie, Roceri, Mila, Romanino, Klaas, Rüegg, Markus A., Sanchez, Hervé, Schaeffer, Laurent, Tanti, Jean-François, Thomas, George, Vignaud, Alban   +27 more
core   +5 more sources

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

Advanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes, Timo Rademakers, Ana Filipa Henriques Lourenço, Andrea Calore, Clarissa Tomasina, Denis van Beurden, Jinjie Venema, Bryan Chömpff, Hong Liu, Nicole Bouvy, Sandra Camarero‐Espinosa, Lorenzo Moroni   +11 more
wiley   +1 more source

Biological aspects of mTOR in leukemia [PDF]

, 2018
The mammalian target of rapamycin (mTOR) is a central processor of intra-and extracellular signals, regulating many fundamental cellular processes such as metabolism, growth, proliferation, and survival.
Bianchi, Mp, Gianfelici, V, Mirabilii, S, Piedimonte, M, Ricciardi, Mr, Tafuri, A.   +5 more
core   +1 more source

B4GALNT4‐Mediated Glycosylation of PDK1 Activates the PI3K‐AKT Signaling Pathway to Promote Prostate Cancer Progression

Advanced Science, EarlyView.
This study identifies B4GALNT4 as a key driver of prostate cancer (PCa). It shows that B4GALNT4 glycosylates PDK1 protein at the N531 site, which stabilizes the PDK1 and constitutively activates the PI3K‐AKT pathway. This mechanism promotes tumor cell proliferation, migration, and invasion. The findings establish the B4GALNT4‐PDK1 glycosylation axis as
Shaoqin Jiang, Mengqiang Li, Qingfu Su, Ruiling Dou, Shaoshan Lin, Jili Zhang, Xiaochen Sun, Haolan Yu, Wei Bao, Min Qu, Yan Wang, Chenghua Yang, Xu Gao   +12 more
wiley   +1 more source

Environmental Sensing by mTORC1

The FASEB Journal, 2021
The mammalian target of rapamycin (mTOR) is an evolutionary conserved Ser/Thr kinase that can sense multiple upstream stimuli to regulate cell growth, metabolism, and autophagy. mTOR is the key component of a multi‐protein complex termed mTOR complex 1 (mTORC1). Increased mTORC1 activation is common in many human diseases such as cancer.
openaire   +1 more source

GPCR signaling inhibits mTORC1 via PKA phosphorylation of Raptor

eLife, 2019
The mammalian target of rapamycin complex 1 (mTORC1) regulates cell growth, metabolism, and autophagy. Extensive research has focused on pathways that activate mTORC1 like growth factors and amino acids; however, much less is known about signaling cues ...
Jenna L Jewell, Vivian Fu, Audrey W Hong, Fa-Xing Yu, Delong Meng, Chase H Melick, Huanyu Wang, Wai-Ling Macrina Lam, Hai-Xin Yuan, Susan S Taylor, Kun-Liang Guan   +10 more
doaj   +1 more source