Germline stem cells: stems of the next generation.

abstract：:The three germ layers - mesoderm, endoderm and ectoderm - constituting the cellular blueprint for the tissues and organs that will form during embryonic development, are specified at gastrulation. Cells of mesodermal origin are the most abundant in the human body, representing a great variety of cell types, including ...

journal_title：Current opinion in cell biology

authors： Ferretti E,Hadjantonakis AK

更新日期：2019-12-01 00:00:00

abstract：:Actin filament assembly is a tightly regulated process that functions in many aspects of cell physiology. Members of the Ena/VASP (Drosophila Enabled/vasodilator-stimulated phosphoprotein) family are key players in regulating actin filament assembly, in many cases through their association with binding partners that d...

journal_title：Current opinion in cell biology

authors： Renfranz PJ,Beckerle MC

更新日期：2002-02-01 00:00:00

abstract：:Within the class of integral membrane proteins, the bacterial porins display a remarkable resistance to denaturants and proteases. This stability is probably crucial for the formation of highly ordered, three-dimensional crystals. Structural analysis of these crystals has been possible in atomic detail. This analysis ...

journal_title：Current opinion in cell biology

authors： Schulz GE

更新日期：1993-08-01 00:00:00

abstract：:The long-standing interest in centrioles and basal bodies stems from the evolutionary conservation of their structural design and from their dual mode of assembly (templated versus de novo), revealed by electron microscopic studies nearly four decades ago and unique for a subcellular organelle. Molecular dissection of...

journal_title：Current opinion in cell biology

authors： Beisson J,Wright M

更新日期：2003-02-01 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：: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：:The cerebral cortex is composed of hundreds of different types of neurons, which underlie its ability to perform highly complex neural processes. How cortical neurons are generated during development constitutes a major challenge in developmental neurosciences with important implications for brain repair and diseases....

journal_title：Current opinion in cell biology

authors： Tiberi L,Vanderhaeghen P,van den Ameele J

更新日期：2012-04-01 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：: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：:Intracellular signals are received and generated by the alpha(IIb)beta(3) integrin on platelets. Recent advances have been made in the areas of agonist receptors that initiate platelet activation, downstream signaling molecules (e.g. small G-proteins and kinases) and changes in ligand-occupied alpha(IIb)beta(3) that c...

journal_title：Current opinion in cell biology

authors： Parise LV

更新日期：1999-10-01 00:00:00

abstract：:Through selective disruption of phosphoinositide 3-kinase (PI3K) activity and the use of green fluorescent protein tagged derivatives of domains capable of specifically binding the lipid products of PI3Ks in vivo, it has been shown that this family of signalling enzymes have vital and distinct roles in chemotaxis, pha...

journal_title：Current opinion in cell biology

authors： Stephens L,Ellson C,Hawkins P

更新日期：2002-04-01 00:00:00

abstract：:In the past decade, studies into the way in which intracellular bacterial pathogens hijack and subvert their hosts have provided many important insights into regulation of the actin cytoskeleton and cell motility, in addition to increasing our understanding of the infection process. Viral pathogens, however, may ultim...

journal_title：Current opinion in cell biology

authors： Ploubidou A,Way M

更新日期：2001-02-01 00:00:00

abstract：:Several new members of the gelsolin family have been discovered in the past year. Determination of the structure of gelsolin and identification of lysophosphatidic acid as a negative regulator provide novel functional insights. Gelsolin is an obligate downstream effector of Rac for motility in dermal fibroblasts, regu...

journal_title：Current opinion in cell biology

authors： Kwiatkowski DJ

更新日期：1999-02-01 00:00:00

abstract：:Protein splicing is a series of enzymatic events involving intramolecular protein breakage, rejoining and intron homing, in which introns are able to promote the recombinative transposition of their own coding sequences. Eukaryotic and prokaryotic spliced proteins have conserved similar gene structure, but little amin...

journal_title：Current opinion in cell biology

authors： Neff NF

更新日期：1993-12-01 00:00:00

abstract：:The control of translation and mRNA degradation plays a key role in the regulation of eukaryotic gene expression. In the cytosol, mRNAs engaged in translation are distributed throughout the cytosol, while translationally inactive mRNAs can accumulate in P bodies, in complex with mRNA degradation and translation repres...

journal_title：Current opinion in cell biology

authors： Balagopal V,Parker R

更新日期：2009-06-01 00:00:00

abstract：:The mitogen-activated protein kinase appears to be regulated by another growth factor regulated kinase, the mitogen-activated protein kinase activator. In the past year, much progress has been made in purifying and characterizing the mitogen-activated protein kinase activator, in determining its primary structure, and...

journal_title：Current opinion in cell biology

authors： Ahn NG,Seger R,Krebs EG

更新日期：1992-12-01 00:00:00

abstract：:Genetic analysis in model organisms has recently achieved a detailed molecular description of many key cellular processes controlling embryonic morphogenesis. To understand higher order tissue morphogenesis, we now need to define how these processes become integrated across different cell groups and cell layers. Here,...

journal_title：Current opinion in cell biology

authors： Zhang H,Gally C,Labouesse M

更新日期：2010-10-01 00:00:00

abstract：:The collective migration of sheets, cohorts, chains or streams of cells contributes to embryogenesis, tissue remodeling and repair as well as to cancer invasion. The functional coordination between neighboring cells is at the heart of collective migration, during which cells migrate with a similar speed in an identica...

journal_title：Current opinion in cell biology

authors： Etienne-Manneville S

更新日期：2014-10-01 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：: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：:Several GPCRs, including receptors previously thought to signal primarily from the cell surface, have been recently shown to signal from many intracellular compartments. This raises the idea that signaling by any given receptor is spatially encoded in the cell, with distinct sites of signal origin dictating distinct d...

journal_title：Current opinion in cell biology

authors： Weinberg ZY,Crilly SE,Puthenveedu MA

更新日期：2019-04-01 00:00:00

abstract：:A major goal in cell biology is to understand the functional organization of macromolecular complexes in vivo. Electron microscopy is helping cell biologists to achieve this goal, thanks to its ability to resolve structural details in the nanometer range. While issues related to specimen preparation, imaging, and imag...

journal_title：Current opinion in cell biology

authors： Hoenger A,McIntosh JR

更新日期：2009-02-01 00:00:00

abstract：:Nuclear mRNA export through the nuclear pore complex has been proposed to be a unidirectional, signal-mediated and energy-dependent process. Evidence exists that this process can be influenced by many factors including other steps in the pathway of cytoplasmic mRNA formation, sequences of the RNA substrate that are ei...

journal_title：Current opinion in cell biology

authors： Maquat LE

更新日期：1991-12-01 00:00:00

abstract：:It has become clear that many vital metabolic circuits and early developmental programs are regulated translationally. Until recently, the mechanisms underlying most of these observations were poorly understood. The past year has witnessed several important advances in the understanding of how the translational appara...

journal_title：Current opinion in cell biology

authors： Hentze MW

更新日期：1995-06-01 00:00:00

abstract：:Recent evidence corroborates the idea that the structure of the nucleolus need not be strictly maintained for proper function, suggesting that the organelle is composed of supramolecular assemblies formed during rRNA synthesis. More controversial is whether the nucleolus exists in the absence of rRNA synthesis and whe...

journal_title：Current opinion in cell biology

authors： Mélèse T,Xue Z

更新日期：1995-06-01 00:00:00

abstract：:Members of the kinesin superfamily of microtubule-based motors and the myosin superfamily of actin-based motors that move 'backwards' have been identified. As the core catalytic domains of myosins and kinesins are similar in structure, this raises the intriguing questions of how direction reversal is accomplished and ...

journal_title：Current opinion in cell biology

authors： Hasson T,Cheney RE

更新日期：2001-02-01 00:00:00

abstract：:Signaling involves the coordinated action of multiple molecules including stimuli, receptors and enzymes part of which interact with the transcriptional machinery and target chromatin. Signaling systems regulate the cell events responsible for survival, development and homeostasis. Many of the signaling pathways induc...

journal_title：Current opinion in cell biology

authors： Suganuma T,Workman JL

更新日期：2013-06-01 00:00:00

abstract：:In Caenorhabditis elegans, cell migration is guided by localized cues, including molecules such as EGL-17/FGF and UNC-6/netrin. These external cues are linked to an intracellular response to migrate, at least in part, by CED-5, a homolog of DOCK180/MBC, and MIG-2, a Rac-like GTPase. In addition, metalloproteases are r...

journal_title：Current opinion in cell biology

authors： Blelloch R,Newman C,Kimble J

更新日期：1999-10-01 00:00:00

abstract：:For the proper segregation of sister chromatids before cell division, each sister kinetochore must attach to microtubules that extend to opposite spindle poles. This process is called bipolar microtubule attachment or chromosome bi-orientation. The mechanism for chromosome bi-orientation lies at the heart of chromosom...

journal_title：Current opinion in cell biology

authors： Tanaka TU

更新日期：2002-06-01 00:00:00

abstract：:Cell shape and mechanics are determined by the interplay of three distinct cytoskeletal networks, made of actin filaments, microtubules, and intermediate filaments. These three types of cytoskeletal polymers have rather different structural and physical properties, enabling specific cellular functions. However, there ...

journal_title：Current opinion in cell biology

authors： Huber F,Boire A,López MP,Koenderink GH

更新日期：2015-02-01 00:00:00