Abstract：
:It is well established that the target of rapamycin (TOR) protein kinase has pivotal roles in controlling cell functions (including protein synthesis, cell growth and cell proliferation) and is implicated in numerous human diseases. Mammalian TOR complex 1 (mTORC1) signalling is activated by hormones and growth factors, and is also stimulated by intracellular amino acids. Recent research has provided important new insight into the poorly understood mechanism by which amino acids activate mTORC1 signalling, showing that the protein kinase MAP4K3 and Rag GTPases have important roles in this. mTORC1 is known to control the G1/S transition of the cell cycle: new data show that (m)TORC1 also controls G2/M progression in yeast and mammals, albeit in contrasting ways.
journal_name
Trends Cell Bioljournal_title
Trends in cell biologyauthors
Wang X,Proud CGdoi
10.1016/j.tcb.2009.03.005subject
Has Abstractpub_date
2009-06-01 00:00:00pages
260-7issue
6eissn
0962-8924issn
1879-3088pii
S0962-8924(09)00081-6journal_volume
19pub_type
杂志文章,评审abstract：:The inositol phospholipids (PIs) comprise a family of eight species with different combinations of phosphate groups arranged around the inositol ring. PIs are among the most versatile signaling molecules known, with key roles in receptor-mediated signal transduction, actin remodeling and membrane trafficking. Recent s...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2005.03.008
更新日期：2005-05-01 00:00:00
abstract：:The Cas family of multiadaptor and scaffold molecules has an essential role in intracellular signaling events. Although these proteins do not have enzymatic or transcriptional activity, they spatially and temporally control signaling events through their ability to undergo changes in phosphorylation and to associate w...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2006.03.003
更新日期：2006-05-01 00:00:00
abstract：:Why are women so under-represented at the top echelons of science? Why do so many drop out just as their careers should be blossoming? Are women in science being actively discriminated against by their peers, and, if, so what can be done about this? These were just a few of the puzzles reflected upon at a recent Europ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/s0962-8924(01)02182-1
更新日期：2001-11-01 00:00:00
abstract：:Chloroplasts have multiple suborganellar membranes. Correct and efficient translocation of chloroplast proteins from their site of synthesis into or across membranes to their functional compartments are fundamental processes. In recent years, several new components and regulatory mechanisms involved in chloroplast pro...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.09.011
更新日期：2021-01-01 00:00:00
abstract：:Members of the myosin-I family of molecular motors are expressed in many eukaryotes, where they are involved in a multitude of critical processes. Humans express eight distinct members of the myosin-I family, making it the second largest family of myosins expressed in humans. Despite the high degree of sequence conser...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2012.10.008
更新日期：2013-02-01 00:00:00
abstract：:Cell biologists have used photobleaching to investigate the lateral mobility of fluorophores on the cell surface since the 1970s. Fusions of green fluorescent protein (GFP) to specific proteins extend photobleaching techniques to the investigation of protein dynamics within the cell, leading to renewed interest in pho...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(98)01433-0
更新日期：1999-02-01 00:00:00
abstract：:Our present understanding of intracellular protein degradation developed from an attempt to understand the metabolic stability of proteins in cells. With the unravelling of its complex biochemical machinery has come a realization that protein degradation plays an important role in the most crucial events in the cell c...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：
更新日期：1999-12-01 00:00:00
abstract：:Across the animal kingdom, color discrimination is achieved by comparing the outputs of photoreceptor cells (PRs) that have different spectral sensitivities. Much remains to be understood about how the pattern of these different PRs is generated and maintained. The Drosophila eye has long provided a beautiful system f...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2004.09.007
更新日期：2004-10-01 00:00:00
abstract：:Hypoxia is linked to metastasis; however, how it affects metastatic progression is not clear due to limited consensus in the literature. We posit that this lack of consensus is due to hypoxia being studied using different approaches, such as in vitro, primary tumor, or metastasis assays in an isolated manner. Here, we...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2018.06.008
更新日期：2018-11-01 00:00:00
abstract：:All mature blood cells are derived from the haemopoietic stem cell (HSC). In common with all other haemopoietic cells, stem cells are mobile, and it is this property of mobility that has allowed bone marrow transplantation to become a routine clinical option. Successful transplantation requires haemopoietic stem cells...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(99)01559-7
更新日期：1999-06-01 00:00:00
abstract：:Lysosomes are acidic and degradative organelles that receive and digest a plethora of molecular and particulate cargo delivered by endocytosis, autophagy, and phagocytosis. The mechanisms responsible for sorting, transporting, and ultimately delivering membranes and cargo to lysosomes through fusion have been intensel...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.05.003
更新日期：2019-08-01 00:00:00
abstract：:Asymmetric cell division (ACD) gives rise to two daughter cells with distinct fates. ACD is widely used during development and by many types of adult stem cells during tissue homeostasis and regeneration. ACD can be regulated by extrinsic cues, such as signaling molecules, as well as by intrinsic factors, such as orga...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2017.02.001
更新日期：2017-07-01 00:00:00
abstract：:The mechanisms responsible for cytokinesis and its coordination with other events of the cell cycle are poorly understood. Genetic studies of cytokinesis in fission yeast are one useful approach to this problem. A number of conditional mutants of fission yeast that show defects in the formation of the septum of cytoki...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(94)90182-1
更新日期：1994-03-01 00:00:00
abstract：:Autophagy is a highly conserved process that allows cells, tissues and organs to survive onslaughts such as nutrient deprivation, inflammation, hypoxia and other stresses. The core component proteins that regulate autophagy are well known, and the formation of a double-membrane structure that encompasses cytosolic car...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2010.12.006
更新日期：2011-04-01 00:00:00
abstract：:During clathrin-mediated endocytosis, dynamin promotes the formation of clathrin-coated vesicles, but its mode of action is unresolved. In a recent study, Macia and colleagues made use of dynasore, a dynamin-specific inhibitor, to show that dynamin plays a dual role in endocytosis: they confirmed that dynamin is invol...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2006.10.004
更新日期：2006-12-01 00:00:00
abstract：:Somatic stem cells maintain tissue homeostasis by organizing themselves in such a way that they can maintain proliferative output while simultaneously protecting themselves from DNA damage that may lead to oncogenic transformation. There is considerable debate about how such stem cell compartments are organized. Burge...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2017.06.006
更新日期：2017-10-01 00:00:00
abstract：:Two related transmembrane proteins in mammalian cells bind the mannose 6-phosphate recognition marker present on all soluble lysosomal hydrolases. Recent studies of cells that express only one or neither of these proteins have shed light not only on their function in directing lysosomal enzymes into the endocytic path...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/s0962-8924(00)89000-5
更新日期：1995-05-01 00:00:00
abstract：:Cells possess an extensive network of components to safeguard proteome integrity and maintain protein homeostasis (proteostasis). When this proteostasis network (PN) declines in performance, as may be the case during aging, newly synthesized proteins are no longer able to fold efficiently and metastable proteins lose ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2014.05.003
更新日期：2014-09-01 00:00:00
abstract：:Chloroplasts depend on the nucleus for much of their proteome. Consequently, strong transcriptional coordination exists between the genomes, which is attuned to the developmental and physiological needs of the organelle. Recent studies highlight that the post-translational modifier ubiquitin adds another layer to plas...
journal_title：Trends in cell biology
pub_type： 评论,杂志文章
doi：10.1016/j.tcb.2015.12.001
更新日期：2016-01-01 00:00:00
abstract：:Nuclear proteins are transported from the cytoplasm into the nucleus via nuclear envelope pore complexes (NPCs). At the molecular level, the mechanisms responsible for this transport remain obscure. However, it is known that, for many proteins, the process requires ATP and proceeds against formidable nucleocytoplasmic...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(93)90096-j
更新日期：1993-10-01 00:00:00
abstract：:Cellular myosin II is the principal motor responsible for cytokinesis. In higher eukaryotes, phosphorylation of the regulatory light chain (MLC) of myosin II is a primary means of activating myosin II and is known to be crucial for the execution of cell division. Because signals transmitted by the mitotic spindle coor...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2005.05.004
更新日期：2005-07-01 00:00:00
abstract：:Aggrecan is a large and highly complex macromolecule, uniquely structured to fill space in the extracellular matrix (ECM) of cartilage. Lethal chondrodystrophies resulting from mutations in the structural gene for aggrecan demonstrate the serious consequences of the absence of aggrecan. Other chondrodystrophies are te...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/s0962-8924(00)89115-1
更新日期：1995-12-01 00:00:00
abstract：:The translocon is responsible for the translocation of proteins across the membrane of the endoplasmic reticulum into its lumen, whereas the exocyst acts at the other end of the secretory pathway, tethering secretory vesicles to the sites of exocytosis. Here, we discuss three independent lines of evidence that indicat...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2003.12.008
更新日期：2004-02-01 00:00:00
abstract：:In response to stress, p53 initiates the transcriptional regulation of selected target genes and various cellular responses, including cell cycle arrest, apoptosis and senescence. Recent studies revealed two additional functions of p53 in the regulation of IGF-1/AKT/mTOR pathways and energy metabolism, contributing to...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2010.03.004
更新日期：2010-07-01 00:00:00
abstract：:Accurate chromosome segregation depends on the proper attachment of sister kinetochores to microtubules emanating from opposite spindle poles. Merotelic kinetochore orientation is an error in which a single kinetochore is attached to microtubules emanating from both spindle poles. Despite correction mechanisms, merote...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2011.01.003
更新日期：2011-06-01 00:00:00
abstract：:Microtubules are composed predominantly of two related proteins: alpha- and beta-tubulin. These proteins form the tubulin heterodimer, which is the basic building block of microtubules. Surprisingly, recent molecular genetic studies have revealed the existence of gamma-tubulin, a new member of the tubulin family. Like...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(92)90125-7
更新日期：1992-01-01 00:00:00
abstract：:Major advances in science are often tightly coupled with the development of new technology. The discovery of kinesin is an excellent example of this principle. The new technology was video-enhanced differential interference contrast light microscopy, which provided the enormous gain in image contrast needed to detect ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/s0962-8924(00)88979-5
更新日期：1995-04-01 00:00:00
abstract：:Every heart beat is not equal. As physiological demands of the cardiovascular system change, cardiac myocytes modulate contractile parameters including the rate and force of contraction. Adaptive responses require the sensing of biomechanical signals involving the interface between the contractile cytoskeleton (myofib...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2004.01.003
更新日期：2004-03-01 00:00:00
abstract：:Members of the transforming growth factor-beta (TGF-beta) family play pivotal roles in development and disease. These cytokines elicit their pleiotropic effects on cells, including endothelial and mural cells, through specific type I and type II serine/threonine kinase receptors and intracellular Smad transcription fa...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2010.06.006
更新日期：2010-09-01 00:00:00
abstract：:The actin-depolymerizing factor (ADF)/cofilins are a family of essential actin regulatory proteins, ubiquitous among eukaryotes, that enhance the turnover of actin by regulating the rate constants of polymerization and depolymerization at filament ends, changing the twist of the filament and severing actin filaments. ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(99)01619-0
更新日期：1999-09-01 00:00:00
