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), mutations have been defined that trigger tumorous overproliferation of progenitor cells and reveal how unrestricted self-renewing capacity is controlled. Moreover, microRNAs have been discovered as essential regulators of stem cell division rate and identity, suggesting that stem cell self-renewal depends on protein translational control. Biosynthetic capacity has also been found to be limiting for stem cell division rates. Finally, asymmetric cell division can impose dominant differentiation signals in a stem cell's daughter, and this can inhibit the stem cell-specific proliferation signature and lock in cell cycle exit.
journal_name
Curr Opin Cell Bioljournal_title
Current opinion in cell biologyauthors
Kohlmaier A,Edgar BAdoi
10.1016/j.ceb.2008.10.002subject
Has Abstractpub_date
2008-12-01 00:00:00pages
699-706issue
6eissn
0955-0674issn
1879-0410pii
S0955-0674(08)00173-7journal_volume
20pub_type
杂志文章,评审abstract：:Flowers and shoots are derived from specialized groups of stem cells termed meristems. Recent studies in Arabidopsis have identified factors that contribute to meristem structure and identity, such as CLAVATA1, CLAVATA3, and SHOOTMERISTEMLESS, which act in both shoot and flower meristems, as well as LEAFY and APETALA1...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80089-5
更新日期：1996-12-01 00:00:00
abstract：:A dynamic and reciprocal flow of information between cells and the extracellular matrix contributes significantly to the regulation of form and function in developing systems. Signals generated by the extracellular matrix do not act in isolation. Instead, they are processed within the context of global signalling hier...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80117-0
更新日期：1995-10-01 00:00:00
abstract：:Receptors for the two peroxisomal targeting signals PTS1 and PTS2 have recently been identified in yeasts. The disparate subcellular locations of PTS receptor homologs have led to proposals of receptor shuttling between the cytosol and the peroxisomal membrane, and to the suggestion that some of these molecules may ev...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80029-9
更新日期：1996-08-01 00:00:00
abstract：:As the largest and stiffest organelle in the cell, the nucleus can be subjected to significant forces generated by the cytoskeleton to adjust its shape and position, and accommodate the cellular machinery during cell migration, differentiation or division. As it was anticipated, recent work showed that mechanosensitiv...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2016.10.003
更新日期：2017-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2004.07.014
更新日期：2004-10-01 00:00:00
abstract：:Particle engulfment during phagocytosis has long been appreciated to be an active, actin-driven process. By contrast, the preceding stage--securing the target to the surface of the phagocyte--was thought to result from the passive diffusion of receptors along the membrane towards their ligands on the particle surface....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2010.10.006
更新日期：2011-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(02)00311-3
更新日期：2002-04-01 00:00:00
abstract：:Hypoxia-inducible factor 1 (HIF-1) is an oxygen-regulated transcriptional activator that plays essential roles in mammalian development, physiology and disease pathogenesis. The HIF-1 alpha subunit is subjected to oxygen-dependent ubiquitination and proteasomal degradation that is mediated by the von Hippel-Lindau pro...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00194-0
更新日期：2001-04-01 00:00:00
abstract：:Mitochondria make physical contact with nearly every other membrane in the cell, and these contacts have a wide variety of functions that are carried out by proteins that reside at the sites of contact. Over the past decade, tremendous insight into the identity and functions of proteins localized to mitochondrial cont...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.02.010
更新日期：2020-08-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2003.11.001
更新日期：2004-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.02.016
更新日期：2013-06-01 00:00:00
abstract：:Chromatin in eukaryotic cells is a negatively charged polymer composed of DNA, histones, and various associated proteins. Over the past ten years, our view of chromatin has shifted from a static regular structure to a dynamic and highly variable configuration. While the details are not fully understood yet, chromatin ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.02.003
更新日期：2019-06-01 00:00:00
abstract：:The initiation of chromosomal DNA replication involves initiator proteins that recruit and load hexameric DNA helicases at replication origins. This helicase loading step is tightly regulated in bacteria and eukaryotes. In contrast to the situation in bacteria, the eukaryotic helicase is loaded in an inactive form. Th...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2009.08.002
更新日期：2009-12-01 00:00:00
abstract：:There is a growing appreciation that metabolic signals are integrated and coupled to cell cycle progression. However, the molecular wiring that connects nutrient availability, biosynthetic intermediates and energetic balance to the core cell cycle machinery remains incompletely understood. In this review, we explore t...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.07.002
更新日期：2013-12-01 00:00:00
abstract：:Determining the premalignant lesions that develop into malignant tumours remains a daunting task. Brain tumours are frequently characterised by a block in differentiation, implying that normal developmental pathways become hijacked during tumourigenesis. However, the heterogeneity of stem cells and their progenitors i...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.06.001
更新日期：2019-10-01 00:00:00
abstract：:Secretion of proteins across the bacterial outer membrane takes place via a variety of mechanisms from simple one-component systems to complex multicomponent pathways. Secretion pathways can be organized into evolutionarily and functionally related groups, which highlight their relationship with organelle biogenesis. ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00111-3
更新日期：2000-08-01 00:00:00
abstract：:Spatiotemporal Ca2+ signalling in the cytoplasm is currently understood as an excitation phenomenon by analogy with electrical excitation in the plasma membrane. In many cell types, Ca2+ waves and Ca2+ oscillations are mediated by inositol 1,4,5-trisphosphate (IP3) receptor/Ca2+ channels in the endoplasmic reticulum m...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80027-1
更新日期：1995-04-01 00:00:00
abstract：:The epithelia are the avascular layers of cells that cover the environment-exposed surfaces of the body. It appears that T cells localize to selected sites in or adjacent to epithelia via the selective expression of adhesion molecules and chemokine receptors on T cells. These bind to counter-receptors and to chemokine...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00132-0
更新日期：2000-10-01 00:00:00
abstract：:Despite some recent setbacks, it remains clear that adult stem cells under appropriate experimental conditions can at some frequency exhibit a wider range of differentiation potentials than previously appreciated. This is underscored by the recent demonstration of the extensive differentiation potential of mesenchymal...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(02)00392-7
更新日期：2002-12-01 00:00:00
abstract：:AB toxins deliver their enzymatically active A domain to the cytosol. Some AB-toxins are able to penetrate cellular membranes from endosomes where the low pH triggers their translocation. One such toxin is diphtheria toxin and important features of its translocation mechanism have been unraveled during the last year. ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00109-5
更新日期：2000-08-01 00:00:00
abstract：:Notch is a well-conserved signaling pathway all through evolution that is crucial to specify different cell fates. Although there is a strong context dependent component in each decision, the basic mechanisms that originate from the interplay among ligands and receptors is greatly preserved. In this review we will cov...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2018.06.010
更新日期：2018-12-01 00:00:00
abstract：:Piwi-interacting RNAs (piRNAs) were reported in 2006 as a novel class of small non-coding RNAs associated with Piwi proteins of the Argonaute/Piwi family. Recent studies have revealed not only the biogenesis of piRNAs and their roles in transposon silencing, but also the function of the Piwi-piRNA pathway in epigeneti...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.01.010
更新日期：2013-04-01 00:00:00
abstract：:How linear DNA molecules are packaged into compact cylindrical chromosomes in preparation for cell division has remained one of the central outstanding questions in cell biology. Condensin is a highly conserved protein complex that universally determines large-scale DNA geometry during mitotic chromosome assembly. A w...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.03.005
更新日期：2019-10-01 00:00:00
abstract：:Rho, Rac and Cdc42 are three Ras-related GTP-binding proteins that control the assembly and disassembly of the actin cytoskeleton in response to extracellular signals. During the past year, numerous candidate downstream targets for these GTPases have been identified using affinity chromatography and yeast two-hybrid t...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80156-1
更新日期：1997-02-01 00:00:00
abstract：:Meiosis is a key processes of sexual reproduction in eukaryotes. By combining two cell division cycles with a single round of DNA replication meiosis provides a mechanism to generate haploid gametes. Coincidentally, processes involved in ensuring appropriate segregation of homologous chromosomes also result in genetic...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2018.01.005
更新日期：2018-06-01 00:00:00
abstract：:Macropinocytosis is increasingly recognized for its versatile adaptations and functions as a highly conserved, ubiquitous pathway for the bulk uptake of fluid, particulate cargo, and membranes. Innate immune cells and transformed cancer cells share the capacity for both constitutive and induced macropinocytosis, which...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.06.005
更新日期：2020-08-01 00:00:00
abstract：:Studies from the past several years have revealed that adipogenesis is controlled by an interplay of transcription factors, including members of the CCAAT/enhancer binding protein family and peroxisome proliferator activated receptor gamma. In addition to providing a new understanding of this aspect of the energy bala...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(99)00037-x
更新日期：1999-12-01 00:00:00
abstract：:A selection of World Wide Web sites relevant to papers published in this issue of Current Opinion in Cell Biology. ...
journal_title：Current opinion in cell biology
pub_type：
doi：10.1016/s0955-0674(00)00224-6
更新日期：2001-08-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(99)80012-x
更新日期：1999-02-01 00:00:00
abstract：:Integrins have the ability to organise macromolecular structures both inside and outside the cell. Analysis of integrin function in the developing embryos of worms and flies suggests that, although the extracellular matrix directs integrins to organise intracellular proteins, the cytoskeleton may have the first word. ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00142-3
更新日期：2000-10-01 00:00:00
