abstract：:Understanding the basic mechanisms underlying chromatin dynamics during DNA replication in eukaryotic cells is of fundamental importance. Beyond DNA compaction, chromatin organization represents a means to regulate genome function. Thus, the inheritance and maintenance of the DNA sequence, along with its organization ...

journal_title：Trends in cell biology

authors： Corpet A,Almouzni G

更新日期：2009-01-01 00:00:00

abstract：:Development requires the translation of stored maternal messenger RNAs (mRNAs) in a spatial and temporally specified manner. Maternal mRNAs are often in large RNA-protein (RNP) granules. Recent papers reveal that maternal mRNA granules in Caenorhabditis elegans oocytes and early development are dynamic and related to ...

journal_title：Trends in cell biology

authors： Rajyaguru P,Parker R

更新日期：2009-01-01 00:00:00

abstract：:The basement membrane (BM), a specialized network of extracellular matrix macromolecules, surrounds epithelial, endothelial, muscle, fat and nerve cells. During development, immune surveillance and disease states ranging from cancer to fibrosis, host cells penetrate the BM by engaging tissue-invasive programs, the ide...

journal_title：Trends in cell biology

authors： Rowe RG,Weiss SJ

更新日期：2008-11-01 00:00:00

abstract：:Some epithelia contain cells with multiple motile cilia that beat in a concerted manner. New tools and experimental systems have facilitated molecular studies of cilium biogenesis and the coordinated planar polarization of cilia that leads to their concerted motility. A recent elegant study using embryonic frog epider...

journal_title：Trends in cell biology

authors： Vladar EK,Axelrod JD

更新日期：2008-11-01 00:00:00

abstract：:Structural plasticity of excitatory synapses is a vital component of neuronal development, synaptic plasticity and behavior, and its malfunction underlies many neurodevelopmental and psychiatric disorders. However, the molecular mechanisms that control dendritic spine morphogenesis have only recently emerged. We summa...

journal_title：Trends in cell biology

authors： Penzes P,Cahill ME,Jones KA,Srivastava DP

更新日期：2008-09-01 00:00:00

abstract：:Noncoding RNAs are emerging as central players in gene expression regulation through the targeting of a plethora of mRNAs. Several recent papers report on the regulation of the epithelial phenotype by the miR-200 (200 family of miRNAs) family and a natural antisense transcript, both acting on the E-cadherin repressors...

journal_title：Trends in cell biology

authors： Cano A,Nieto MA

更新日期：2008-08-01 00:00:00

abstract：:A major quest in cell biology is to understand the molecular mechanisms underlying the high plasticity of the microtubule network at different stages of the cell cycle, and during and after differentiation. Initial reports described the centrosomal localization of proteins possessing transforming acidic coiled-coil (T...

journal_title：Trends in cell biology

authors： Peset I,Vernos I

更新日期：2008-08-01 00:00:00

abstract：:Recent studies suggest that the human Kinesin-8 molecular motor Kif18A has a role in chromosome congression. Specifically, these studies find that Kif18A promotes chromosome congression by attenuating chromosome oscillation magnitudes. Together with recent modeling work, in vitro studies, and the analysis of in vivo y...

journal_title：Trends in cell biology

authors： Gardner MK,Odde DJ,Bloom K

更新日期：2008-07-01 00:00:00

abstract：:The synthesis, assembly and organisation of structural and motor proteins during muscle formation requires temporal and spatial control directed by specialized chaperones. For example, alphaB-crystallin, GimC and TRiC facilitate the assembly of sarcomeric proteins such as desmin and actin. Recent studies have demonstr...

journal_title：Trends in cell biology

authors： Kim J,Löwe T,Hoppe T

更新日期：2008-06-01 00:00:00

abstract：:The directional migration of cells within multicellular organisms is governed by gradients of both chemical attractants and repellents in diverse processes, including leukocyte trafficking and neuronal pathfinding in vivo. These complex extracellular environments direct the orchestrated bidirectional trafficking of le...

journal_title：Trends in cell biology

authors： Huttenlocher A,Poznansky MC

更新日期：2008-06-01 00:00:00

abstract：:Luke and colleagues have recently attributed a new role to a member of the serpin superfamily of serine proteinase inhibitors. They have used Caenorhabditis elegans to show that an intracellular serpin is crucial for maintaining lysosomal integrity. We examine the role of this firewall in preventing necrosis and attem...

journal_title：Trends in cell biology

authors： Marciniak SJ,Lomas DA

更新日期：2008-02-01 00:00:00

abstract：:Ultraviolet (UV) irradiation injures the epidermis, resulting in sunburn and inflammation. UV-irradiated keratinocytes secrete interleukin-1beta through a caspase-1-dependent mechanism. In seeking a link between UV-irradiation and caspase-1 activation, a prominent role for the NOD-like receptor (NLR) family of innate ...

journal_title：Trends in cell biology

authors： Faustin B,Reed JC

更新日期：2008-01-01 00:00:00

abstract：:Stem cell niches are specialized microenvironments where pluripotent cells are maintained to provide undifferentiated cells for the formation of new tissues and organs. The balance between stem cell maintenance within the niche and differentiation of cells that exit it is regulated by local cell-cell communication, to...

journal_title：Trends in cell biology

authors： Tucker MR,Laux T

更新日期：2007-08-01 00:00:00

abstract：:Virtually all cancers show metabolic changes that result in upregulation of glycolysis and glucose consumption. Although discovered in the 1920s, how this glycolytic switch happens, and whether it is a cause or a consequence of the malignant process, has remained a matter of debate. The p53 tumor suppressor gene, disc...

journal_title：Trends in cell biology

authors： Bensaad K,Vousden KH

更新日期：2007-06-01 00:00:00

abstract：:The GINS complex is the most recently identified component of the eukaryotic DNA replication machinery and is required both for the initiation of chromosome replication and also for the normal progression of DNA replication forks. Several recent studies suggest that GINS associates at replication forks with the MCM he...

journal_title：Trends in cell biology

authors： Labib K,Gambus A

更新日期：2007-06-01 00:00:00

abstract：:Most microtubule arrays in animal cells, including the bipolar spindle required for cell division, are organized by centrosomes. Thus, strict control of centrosome numbers is crucial for accurate chromosome segregation. Each centrosome comprises two centrioles, which need to be duplicated exactly once in every cell cy...

journal_title：Trends in cell biology

authors： Nigg EA

更新日期：2007-05-01 00:00:00

abstract：:Iron is an essential element for metabolic processes intrinsic to life, and yet the properties that make iron a necessity also make it potentially deleterious. To avoid harm, iron homeostasis is achieved through iron transport, storage and regulatory proteins. The functions of some of these molecules are well describe...

journal_title：Trends in cell biology

authors： Dunn LL,Suryo Rahmanto Y,Richardson DR

更新日期：2007-02-01 00:00:00

abstract：:The mitochondrial electron transport chain is the major source for the production of oxygen radicals. Mitochondria-generated reactive oxygen species (mROS) have been implicated in decreasing the life span and contributing to age-related diseases (known as the free radical theory of aging). Recently, the serine/threoni...

journal_title：Trends in cell biology

authors： Storz P

更新日期：2007-01-01 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

authors： Nankoe SR,Sever S

更新日期：2006-12-01 00:00:00

abstract：:The ErbB family of four receptor tyrosine kinases occupies a central role in a wide variety of biological processes from neuronal development to breast cancer. New information continues to expand their biologic significance and to unravel the molecular mechanisms that underlie the signaling capacity of these receptors...

journal_title：Trends in cell biology

authors： Linggi B,Carpenter G

更新日期：2006-12-01 00:00:00

abstract：:The vast diversity of cellular types and behaviours is mainly the result of combinatorial interactions between a limited number of transcription factors and cellular signalling pathways whose activity is stringently controlled by developmental, cellular and extracellular cues. Studies of serum response factor (SRF) ha...

journal_title：Trends in cell biology

authors： Posern G,Treisman R

更新日期：2006-11-01 00:00:00

abstract：:Mucins are heavily glycosylated high molecular weight glycoproteins, which are involved in the protection and lubrication of luminal epithelial surfaces. Transmembrane mucins also engage in signal transduction, through extracellular domain-mediated ligand binding or by interacting with receptors for growth and differe...

journal_title：Trends in cell biology

authors： Singh PK,Hollingsworth MA

更新日期：2006-09-01 00:00:00

abstract：:Until recently, the cell biology of mammalian muscle repair following damage appeared to be completely different from the formation of new muscles in regenerated appendages of Amphibia. Mammalian muscle repair occurs through the mobilization of muscle satellite cells, whereas the new muscle in amphibian appendage rege...

journal_title：Trends in cell biology

authors： Slack JM

更新日期：2006-06-01 00:00:00

abstract：:Cell polarization requires the segregation of the plasma membrane into domains of distinct protein composition. The Lethal giant larvae (Lgl) protein of Drosophila, initially identified as a tumor suppressor, establishes such domains by localizing specific proteins to specific regions of the plasma membrane. However, ...

journal_title：Trends in cell biology

authors： Wirtz-Peitz F,Knoblich JA

更新日期：2006-05-01 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

authors： Defilippi P,Di Stefano P,Cabodi S

更新日期：2006-05-01 00:00:00

abstract：:A deeper understanding of the mechanisms of cell behavior is essential if we want to comprehend how an organism develops and functions. Changes in cellular processes, including the orientation of cell divisions, cell shape, polarity, differentiation and migration, account for tissue rearrangements during development a...

journal_title：Trends in cell biology

authors： Beis D,Stainier DY

更新日期：2006-02-01 00:00:00

abstract：:Meiosis is a specialized type of cell division leading to the production of gametes. During meiotic prophase I, homologous chromosomes interact with each other and form bivalents (pairs of homologous chromosomes). Three major meiotic processes--chromosome pairing, synapsis and recombination--are involved in the format...

journal_title：Trends in cell biology

authors： Pawlowski WP,Cande WZ

更新日期：2005-12-01 00:00:00

abstract：:Damage to any tissue triggers a cascade of events that leads to rapid repair of the wound - if the tissue is skin, then repair involves re-epithelialization, formation of granulation tissue and contraction of underlying wound connective tissues. This concerted effort by the wounded cell layers is accompanied by, and m...

journal_title：Trends in cell biology

authors： Martin P,Leibovich SJ

更新日期：2005-11-01 00:00:00

abstract：:Bidirectional microtubule-dependent organelle transport in melanophores is regulated by cAMP through organelle-bound protein kinase A (PKA); however, the mechanisms responsible for this regulation are unknown. A recent study by Gelfand and colleagues demonstrates that, in addition to PKA, transport is regulated by the...

journal_title：Trends in cell biology

authors： Kashina A,Rodionov V

更新日期：2005-08-01 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

authors： Matsumura F

更新日期：2005-07-01 00:00:00

abstract：:Genome-wide analyses of yeast provide insight into cellular responses to reactive oxygen species (ROS). Many deletion mutants are sensitive to at least one ROS, but no one oxidant is representative of 'oxidative stress' despite the widespread use of a single compound such as H(2)O(2). This has major implications for s...

journal_title：Trends in cell biology

authors： Temple MD,Perrone GG,Dawes IW

更新日期：2005-06-01 00:00:00

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

authors： Downes CP,Gray A,Lucocq JM

更新日期：2005-05-01 00:00:00

abstract：:Leukocytes are key cellular components of innate immunity. These phagocytic cells respond to bacteria at sites of infection through chemotactic sensing and directed motility regulated by Rho GTPases. The development of sensitive probes of Rho GTPase dynamics has provided insights into the temporal and spatial aspects ...

journal_title：Trends in cell biology

authors： Bokoch GM

更新日期：2005-03-01 00:00:00

abstract：:After nearly four decades of investigation, the dynein motor is finally on the verge of revealing its inner secrets. This multisubunit ATPase participates in several important microtubule-based motilities in eukaryotic cells. Numerous recent articles have advanced the understanding of the dynein motor substructure and...

journal_title：Trends in cell biology

authors： Koonce MP,Samsó M

更新日期：2004-11-01 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

authors： Wernet MF,Desplan C

更新日期：2004-10-01 00:00:00

abstract：:Many organisms stringently regulate the number, volume and enzymatic content of peroxisomes (and other organelles). Understanding this regulation requires knowledge of how organelles are assembled and selectively destroyed in response to metabolic cues. In the past decade, considerable progress has been achieved in th...

journal_title：Trends in cell biology

authors： Farré JC,Subramani S

更新日期：2004-09-01 00:00:00

abstract：:Actin is an ancient and abundant protein with well-established roles in fundamental processes ranging from cell migration to membrane transport. Most eukaryotic cells also contain at least eight actin-related proteins (ARPs) that are, themselves, conserved between organisms as divergent as yeast and mammals. Although ...

journal_title：Trends in cell biology

authors： Blessing CA,Ugrinova GT,Goodson HV

更新日期：2004-08-01 00:00:00

abstract：:Nuclear receptors comprise a large family of proteins that shares a common structure and mechanism of action. Members of this family, first cloned 20 years ago, are regulated by small lipophilic signaling molecules such as steroid hormones, retinoids and thyroid hormone. More recently, the characterization of proteins...

journal_title：Trends in cell biology

authors： Benoit G,Malewicz M,Perlmann T

更新日期：2004-07-01 00:00:00

abstract：:Integrin-linked focal adhesion complexes provide the main sites of cell adhesion to extracellular matrix and associate with the actin cytoskeleton to control cell movement. Dynamic regulation of focal adhesions and reorganization of the associated actin cytoskeleton are crucial determinants of cell migration. There ar...

journal_title：Trends in cell biology

authors： Carragher NO,Frame MC

更新日期：2004-05-01 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

authors： Miller MK,Granzier H,Ehler E,Gregorio CC

更新日期：2004-03-01 00:00:00