abstract：:The eukaryotic endomembrane system is responsible for the biosynthesis and transport of proteins and lipids, and for the definition of the major subcellular compartments. Recent work indicates that the endomembrane system is ancient, with near modern complexity predating the radiation of the major eukaryotic lineages....

journal_title：Current opinion in cell biology

authors： Field MC,Dacks JB

更新日期：2009-02-01 00:00:00

abstract：:The relationship between cell growth (cell mass increase over time) and cell division is poorly understood in animal stem cells. Recent studies in several Drosophila stem cell types have provided the tools to interrogate this relationship. In several cases (brat, mei-P26, pros, bam, lethal giant larvae, polo), mutatio...

journal_title：Current opinion in cell biology

authors： Kohlmaier A,Edgar BA

更新日期：2008-12-01 00:00:00

abstract：:In the adult, angiogenesis, the formation of new blood vessels from pre-existing vasculature contributes to the pathogenesis of many disorders including cancer. The role of adhesion molecules, especially integrins, in pathological angiogenesis has long been the subject of investigation, mostly because of their potenti...

journal_title：Current opinion in cell biology

authors： Hodivala-Dilke K

更新日期：2008-10-01 00:00:00

abstract：:Mammalian cell biology is witnessing a new era in which cellular processes are explained through dynamic networks of interacting cellular components. In this fast-pacing field, where image-based RNAi screening is taking a central role, there is a strong need to improve ways to capture such interactions in space and ti...

journal_title：Current opinion in cell biology

authors： Sacher R,Stergiou L,Pelkmans L

更新日期：2008-08-01 00:00:00

abstract：:Important advances in the study of Polycomb Group (PcG) complexes in the past two years have focused on the role of this repressive system in programing the genome. Genome-wide analyses have shown that PcG mechanisms control a large number of genes regulating many cellular functions and all developmental pathways. Cur...

journal_title：Current opinion in cell biology

authors： Schwartz YB,Pirrotta V

更新日期：2008-06-01 00:00:00

abstract：:Two key processes are in the basis of morphogenesis: the spatial allocation of cell types in fields of naïve cells and the regulation of growth. Both are controlled by morphogens, which activate target genes in the growing tissue in a concentration-dependent manner. Thus the morphogen model is an intrinsically quantit...

journal_title：Current opinion in cell biology

authors： Kicheva A,González-Gaitán M

更新日期：2008-04-01 00:00:00

abstract：:Cell migration requires the integration and coordination of specific focal adhesion dynamics at the cell front, center and rear. In this review, we will present our understanding of the regulation of adhesion turnover and disassembly in various regions of the cell. Adhesion turnover involves a number of tyrosine kinas...

journal_title：Current opinion in cell biology

authors： Broussard JA,Webb DJ,Kaverina I

更新日期：2008-02-01 00:00:00

abstract：:Analysis of complex and redundant pathways that control proliferation, differentiation, apoptosis and DNA damage response by global genome wide analysis is an intensive area of investigation aimed at identifying unique molecular signatures of prognostic significance in cancer. An alternative approach is to focus on th...

journal_title：Current opinion in cell biology

authors： Williams GH,Stoeber K

更新日期：2007-12-01 00:00:00

abstract：:The Polycomb group proteins are best known for their role as epigenetic regulators of the fly homeotic (Hox) gene clusters, but it has long been clear that these well conserved proteins have many other targets. For example, they are vital for maintaining both the pluripotency of stem cells and the identity of differen...

journal_title：Current opinion in cell biology

authors： Ringrose L

更新日期：2007-06-01 00:00:00

abstract：:The hetero-hexameric origin recognition complex (ORC) is well known for its separable roles in DNA replication and heterochromatin assembly. However, ORC and its individual subunits have been implicated in diverse cellular activities in both the nucleus and the cytoplasm. Some of ORC's implied functions, such as cell ...

journal_title：Current opinion in cell biology

authors： Sasaki T,Gilbert DM

更新日期：2007-06-01 00:00:00

abstract：:A-kinase anchoring proteins (AKAPs) are signaling scaffolds that contribute to various aspects of cAMP signaling. They do this by tethering protein kinase-A to specific subcellular sites, thereby focusing its activity toward relevant substrates. Recently the structural basis for these protein-protein interactions has ...

journal_title：Current opinion in cell biology

authors： Beene DL,Scott JD

更新日期：2007-04-01 00:00:00

abstract：:Neural induction is the process by which embryonic cells in the ectoderm make a decision to acquire a neural fate (to form the neural plate) rather than give rise to other structures such as epidermis or mesoderm. An influential model proposed a decade ago, the 'default model', postulated that ectodermal cells will be...

journal_title：Current opinion in cell biology

authors： Stern CD

更新日期：2006-12-01 00:00:00

abstract：:Transcriptional coactivators enhance gene expression by associating with sequence-specific transcription factors and serve as the primary targets of developmental and physiological signals in diverse biological processes. Recent studies have revealed key roles for transcriptional coactivators in the control of gene ex...

journal_title：Current opinion in cell biology

authors： Liu N,Olson EN

更新日期：2006-12-01 00:00:00

abstract：:Inter-organelle membrane contact sites are zones where heterologous membranes, usually the endoplasmic reticulum plus a partner organelle, come into close apposition. These sites are very poorly understood because so few of their components have been identified; however, it is clear that they are specialised for traff...

journal_title：Current opinion in cell biology

authors： Levine T,Loewen C

更新日期：2006-08-01 00:00:00

abstract：:Telomeres, the natural termini of eukaryotic chromosomes, have been the subject of intense interest during the last decade because of the roles that these chromosome termini perform in both cancer and aging. As we become more cognizant of the consequences of telomere dysfunction on several aspects of human health, sig...

journal_title：Current opinion in cell biology

authors： Bertuch AA,Lundblad V

更新日期：2006-06-01 00:00:00

abstract：:Cell-cell signalling is an essential process in the formation of multicellular organisms. Notch is the receptor of an evolutionarily conserved signalling pathway regulating numerous developmental decisions. Indeed, its misregulation is linked to multiple developmental and physiological disorders. Notch and its ligands...

journal_title：Current opinion in cell biology

authors： Le Borgne R

更新日期：2006-04-01 00:00:00

abstract：:One of the most notable trends in human evolution is the dramatic increase in brain size that has occurred in the great ape clade, culminating in humans. Of particular interest is the vast expanse of the cerebral cortex, which is believed to have resulted in our ability to perform higher cognitive functions. Recent in...

journal_title：Current opinion in cell biology

authors： Bond J,Woods CG

更新日期：2006-02-01 00:00:00

abstract：:A key difference between yeast and metazoans is the need of the latter to regulate cell proliferation and growth to create organs (and organisms) of reproducible size and shape. Great progress has been made in understanding how growth, cell size and the cell cycle are controlled in metazoans. Recent work has shown tha...

journal_title：Current opinion in cell biology

authors： Leevers SJ,McNeill H

更新日期：2005-12-01 00:00:00

abstract：:The cell biologist's insight into endosomal diversity, in terms of both form and function, has increased dramatically in the past few years. This understanding has been promoted by the availability of powerful new techniques that allow imaging of both cargo and machinery in the endocytic process in real time, and by o...

journal_title：Current opinion in cell biology

authors： Perret E,Lakkaraju A,Deborde S,Schreiner R,Rodriguez-Boulan E

更新日期：2005-08-01 00:00:00

abstract：:The spatial separation of nuclear transcription and cytoplasmic translation in eukaryotic cells implies that mRNAs have to travel. On their journey, proteins involved in the various steps of transcript formation, processing and transport dynamically interact with mRNAs to form diverse messenger ribonucleoprotein compl...

journal_title：Current opinion in cell biology

authors： Sommer P,Nehrbass U

更新日期：2005-06-01 00:00:00

abstract：:When PI3Ks are deregulated by aberrant surface receptors or modulators, accumulation of PtdIns(3,4,5)P3 leads to increased cell growth, proliferation and contact-independent survival. The PI3K/PKB/TOR axis controls protein synthesis and growth, while PtdIns(3,4,5)P3-mediated activation of Rho GTPases directs cell moti...

journal_title：Current opinion in cell biology

authors： Wymann MP,Marone R

更新日期：2005-04-01 00:00:00

abstract：:Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors involved in lipid and glucose homeostasis, inflammation and wound healing. In addition to ligand binding, phosphorylation can also regulate PPARs; the biological effects of phosphorylation depend on the stimulus, the kinase, the PPAR isotype, th...

journal_title：Current opinion in cell biology

authors： Gelman L,Michalik L,Desvergne B,Wahli W

更新日期：2005-04-01 00:00:00

abstract：:Actin polymerization generates the force that deforms the cell membrane, pulls the cell forward and propels endosomes and bacteria within the cell. The mechanism of force generation has been probed using experimental biomimetic systems where force generation and movement occur by the same actin-polymerization processe...

journal_title：Current opinion in cell biology

authors： Plastino J,Sykes C

更新日期：2005-02-01 00:00:00

abstract：:The cell division cycle is one of the most intensively studied biological processes, yet, in spite of great effort, many questions remain as to how the cell cycle is controlled by cyclin-dependent kinases and other critical regulators. Recent functional genomic and proteomic approaches have yielded new insights into a...

journal_title：Current opinion in cell biology

authors： Tyers M

更新日期：2004-12-01 00:00:00

abstract：:Emerging studies indicate that connexins have activities completely unrelated to gap junctions and, conversely, that non-connexin proteins can form gap junction channels. ...

journal_title：Current opinion in cell biology

authors： Stout C,Goodenough DA,Paul DL

更新日期：2004-10-01 00:00:00

abstract：:Ephrins are cell-surface-tethered ligands for Eph receptors, the largest family of receptor tyrosine kinases. During development, the Eph/ephrin cell communication system appears to influence cell behavior such as attraction/repulsion, adhesion/de-adhesion and migration, thereby influencing cell fate, morphogenesis an...

journal_title：Current opinion in cell biology

authors： Klein R

更新日期：2004-10-01 00:00:00

abstract：:Vesicle and tubule transport containers move proteins and lipids from one membrane system to another. Newly forming transport containers frequently have electron-dense coats. Coats coordinate the accumulation of cargo and sculpt the membrane. Recent advances have shown that components of both COP1 and clathrin-adaptor...

journal_title：Current opinion in cell biology

authors： McMahon HT,Mills IG

更新日期：2004-08-01 00:00:00

abstract：:Hermansky-Pudlak syndrome defines a group of genetic disorders characterized by defects in organelles of the endosomal-lysosomal system, most notably melanosomes and platelet-dense granules. About a dozen genes have been implicated in the pathogenesis of the disease in humans and mice. Most of these genes encode novel...

journal_title：Current opinion in cell biology

authors： Dell'Angelica EC

更新日期：2004-08-01 00:00:00

abstract：:Considerable advances into the basis of RNA-polymerase-II-mediated transcriptional regulation have recently emerged. Biochemical, genetic and structural studies have contributed to novel insights into transcription, as well as the functional significance of covalent histone modifications. New details regarding transcr...

journal_title：Current opinion in cell biology

authors： Sims RJ 3rd,Mandal SS,Reinberg D

更新日期：2004-06-01 00:00:00

abstract：:Although it is universally accepted that protein synthesis occurs in the cytoplasm, the possibility that translation can also take place in the nucleus has been hotly debated. Reports have been published claiming to demonstrate nuclear translation, but alternative explanations for these results have not been excluded,...

journal_title：Current opinion in cell biology

authors： Dahlberg JE,Lund E

更新日期：2004-06-01 00:00:00

abstract：:Primordial germ cells (PGCs), the progenitors of the gametes, migrate from the position where they are specified towards the region where the gonad develops. To reach their target, the PGCs obtain directional cues from cells positioned along their migration path. One such cue, the chemokine SDF-1, has recently been fo...

journal_title：Current opinion in cell biology

authors： Raz E

更新日期：2004-04-01 00:00:00

abstract：:Cell migration is a universal process involving different morphologies and mechanisms in different cell types and tissue environments. Prespecified cell-type-specific patterns of cell migration can be classified into single cell migration (amoeboid, mesenchymal) and collective migration modes (cell sheets, strands, tu...

journal_title：Current opinion in cell biology

authors： Friedl P

更新日期：2004-02-01 00:00:00

abstract：:The epithelial apical-junctional complex is a key regulator of cellular functions. In addition, it is an important target for microbial pathogens that manipulate the cell to survive, proliferate and sometimes persist within a host. Out of a myriad of potential molecular targets, some bacterial and viral pathogens have...

journal_title：Current opinion in cell biology

authors： Vogelmann R,Amieva MR,Falkow S,Nelson WJ

更新日期：2004-02-01 00:00:00

abstract：:The arrangement and dynamics of chromosomes inside the nucleus of mammalian cells have been studied intensively over the last two years. Although chromosomes are relatively immobile and occupy non-random positions in interphase, their dynamic movements in mitosis have traditionally been assumed to randomize this arran...

journal_title：Current opinion in cell biology

authors： Gerlich D,Ellenberg J

更新日期：2003-12-01 00:00:00

abstract：:The epithelial-mesenchymal transition (EMT) is a fundamental process governing morphogenesis in multicellular organisms. This process is also reactivated in a variety of diseases including fibrosis and in the progression of carcinoma. The molecular mechanisms of EMT were primarily studied in epithelial cell lines, lea...

journal_title：Current opinion in cell biology

authors： Thiery JP

更新日期：2003-12-01 00:00:00

abstract：:As a 'double-edged sword', neutrophil (polymorphonuclear leukocyte) migration across epithelial-lined organs is an important component of host defense, but it also results in epithelial pathophysiology and disease symptoms. There have been significant advances in better understanding the mechanisms of how leukocytes c...

journal_title：Current opinion in cell biology

authors： Zen K,Parkos CA

更新日期：2003-10-01 00:00:00

abstract：:Several recent scientific and technical developments have made it possible to postulate the use of the 'magic bullet' concept; that is, the identification of specific antigens present on tumor cells that can be targeted either by therapeutic antibodies or by small molecules. The use of monoclonal antibodies in cancer,...

journal_title：Current opinion in cell biology

authors： Houshmand P,Zlotnik A

更新日期：2003-10-01 00:00:00

abstract：:Golgins are a family of coiled-coil proteins associated with the Golgi apparatus necessary for tethering events in membrane fusion and as structural supports for Golgi cisternae. Recent work has shown that golgins such as GM130, golgin-45 and p115 bind to Rab GTPases via their coiled-coil domains, and that GM130, rath...

journal_title：Current opinion in cell biology

authors： Barr FA,Short B

更新日期：2003-08-01 00:00:00

abstract：:The structure and integrity of the mitochondrial compartment are features essential for it to function efficiently. The maintenance of mitochondrial structure in cells ranging from yeast to humans has been shown to require both ongoing fission and fusion. Recent characterization of many of the molecular components tha...

journal_title：Current opinion in cell biology

authors： Scott SV,Cassidy-Stone A,Meeusen SL,Nunnari J

更新日期：2003-08-01 00:00:00

abstract：:Oocyte cytoplasmic factors can reprogramme the sperm genome during fertilisation or the somatic cell genome during cloning. Diverse reprogramming machinery acts sequentially and interdependently on the imported genome to drive it to totipotency, but their three-dimensional interactions in the cytoplasm remain unknown....

journal_title：Current opinion in cell biology

authors： Kang YK,Lee KK,Han YM

更新日期：2003-06-01 00:00:00