Abstract:
:Formation of a bipolar spindle is essential for faithful chromosome segregation at mitosis. Because centrosomes define spindle poles, defects in centrosome number and structural organization can lead to a loss of bipolarity. In addition, microtubule-mediated pulling and pushing forces acting on centrosomes and chromosomes are also important for bipolar spindle formation. Polo-like kinase 1 (Plk1) is a highly conserved Ser/Thr kinase that has essential roles in the formation of a bipolar spindle with focused poles. However, the mechanism by which Plk1 regulates spindle-pole formation is poorly understood. Here, we identify a novel centrosomal substrate of Plk1, Kizuna (Kiz), depletion of which causes fragmentation and dissociation of the pericentriolar material from centrioles at prometaphase, resulting in multipolar spindles. We demonstrate that Kiz is critical for establishing a robust mitotic centrosome architecture that can endure the forces that converge on the centrosomes during spindle formation, and suggest that Plk1 maintains the integrity of the spindle poles by phosphorylating Kiz.
journal_name
Nat Cell Bioljournal_title
Nature cell biologyauthors
Oshimori N,Ohsugi M,Yamamoto Tdoi
10.1038/ncb1474subject
Has Abstractpub_date
2006-10-01 00:00:00pages
1095-101issue
10eissn
1465-7392issn
1476-4679pii
ncb1474journal_volume
8pub_type
杂志文章abstract::Historically, the late arrival of optical microscopy is something of a puzzle, although it may be a testament to the fact that the development of new technology is driven by the desire for scientific knowledge, and not the other way around. The explorations that began in the 17th century are by no means complete, but ...
journal_title:Nature cell biology
pub_type: 历史文章,杂志文章
doi:10.1038/35019639
更新日期:2000-08-01 00:00:00
abstract::The formation of axon trajectories requires integration of local adhesive interactions with directional information from attractive and repulsive cues. Here, we show that these two types of information are functionally integrated; activation of the transmembrane receptor Roundabout (Robo) by its ligand, the secreted r...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb858
更新日期:2002-10-01 00:00:00
abstract::The tumour stroma is an active participant during cancer progression. Stromal cells promote tumour progression and metastasis through multiple mechanisms including enhancing tumour invasiveness and angiogenesis, and suppressing immune surveillance. We report here that miR-126/miR-126(*), a microRNA pair derived from a...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb2690
更新日期:2013-03-01 00:00:00
abstract::Proteins containing ubiquitin-binding domains (UBDs) interact with ubiquitinated targets and regulate diverse biological processes, including endocytosis, signal transduction, transcription and DNA repair. Many of the UBD-containing proteins are also themselves monoubiquitinated, but the functional role and the mechan...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1354
更新日期:2006-02-01 00:00:00
abstract::In three-dimensional matrices cancer cells move with a rounded, amoeboid morphology that is controlled by ROCK-dependent contraction of acto-myosin. In this study, we show that PDK1 is required for phosphorylation of myosin light chain and cell motility, both on deformable gels and in vivo. Depletion of PDK1 alters th...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1675
更新日期:2008-02-01 00:00:00
abstract::Starvation of animals or cells triggers autophagic degradation of cell contents to retrieve nutrients, but, paradoxically, mitochondria enlarge. This is now shown to result from inhibition of mitochondrial fission through PKA-mediated phosphorylation of the GTPase DRP1. Elongation of mitochondria optimizes ATP product...
journal_title:Nature cell biology
pub_type: 评论,新闻
doi:10.1038/ncb0511-521
更新日期:2011-05-01 00:00:00
abstract::The polarity protein Scribble (SCRIB) regulates apical-basal polarity, directional migration and tumour suppression in Drosophila and mammals. Here we report that SCRIB is an important regulator of myeloid cell functions including bacterial infection and inflammation. SCRIB interacts directly with the NADPH oxidase (N...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb3413
更新日期:2016-11-01 00:00:00
abstract::Although nuclear envelope (NE) assembly is known to require the GTPase Ran, the membrane fusion machinery involved is uncharacterized. NE assembly involves formation of a reticular network on chromatin, fusion of this network into a closed NE and subsequent expansion. Here we show that p97, an AAA-ATPase previously im...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1201-1086
更新日期:2001-12-01 00:00:00
abstract::Cellular senescence is a tumour suppressor programme characterized by a stable cell cycle arrest. Here we report that cellular senescence triggered by a variety of stimuli leads to diminished ribosome biogenesis and the accumulation of both rRNA precursors and ribosomal proteins. These defects were associated with red...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/s41556-018-0127-y
更新日期:2018-07-01 00:00:00
abstract::Store-operated Ca(2+) channels (SOCs) are activated in response to Ca(2+) release from the endoplasmic reticulum (ER). The stromal interaction molecule 1 (STIM1) is the ER sensor that transmits the stored Ca(2+) content to the pore-forming SOCs Orai and TRPC channels. Recent studies reveal high levels of Orai1 and STI...
journal_title:Nature cell biology
pub_type: 新闻
doi:10.1038/ncb0608-639
更新日期:2008-06-01 00:00:00
abstract::We describe a genome-wide gain-of-function screen for regulators of NF-kappaB, and identify Rap1 (Trf2IP), as an essential modulator of NF-kappaB-mediated pathways. NF-kappaB is induced by ectopic expression of Rap1, whereas its activity is inhibited by Rap1 depletion. In addition to localizing on telomeres, mammalian...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb2080
更新日期:2010-08-01 00:00:00
abstract::Aberrant microRNA (miRNA) expression is a defining feature of human malignancy. Specific miRNAs have been identified as promoters or suppressors of metastatic progression. miRNAs control metastasis through divergent or convergent regulation of metastatic gene pathways. Some miRNA regulatory networks govern cell-autono...
journal_title:Nature cell biology
pub_type: 杂志文章,评审
doi:10.1038/ncb2769
更新日期:2013-06-01 00:00:00
abstract::In the version of this Resource originally published, owing to a technical error an incorrect file was used for Supplementary Table 2; this has now been replaced with the correct file. ...
journal_title:Nature cell biology
pub_type: 已发布勘误
doi:10.1038/s41556-018-0166-4
更新日期:2018-10-01 00:00:00
abstract::The retinoblastoma protein (pRB) negatively regulates the progression from G1 to S phase of the cell cycle, in part, by repressing E2F-dependent transcription. pRB also possesses E2F-independent functions that contribute to cell-cycle control--for example, during pRB-mediated cell-cycle arrest pRB associates with Skp2...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1532
更新日期:2007-02-01 00:00:00
abstract::Over their lifetime, long-term haematopoietic stem cells (HSC) are exposed to a variety of stress conditions that they must endure. Many stresses, such as infection/inflammation, reactive oxygen species, nutritional deprivation and hypoxia, activate unfolded protein response signalling, which induces either adaptive c...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/s41556-019-0285-6
更新日期:2019-03-01 00:00:00
abstract::The ATR checkpoint kinase coordinates cellular responses to DNA replication stress. Budding yeast contain three activators of Mec1 (the ATR orthologue); however, only TOPBP1 is known to activate ATR in vertebrates. We identified ETAA1 as a replication stress response protein in two proteomic screens. ETAA1-deficient c...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb3415
更新日期:2016-11-01 00:00:00
abstract::The physical characteristics of tumours are intricately linked to the tumour phenotype and difficulties during treatment. Many factors contribute to the increased stiffness of tumours; from increased matrix deposition, matrix remodelling by forces from cancer cells and stromal fibroblasts, matrix crosslinking, increas...
journal_title:Nature cell biology
pub_type: 杂志文章,评审
doi:10.1038/s41556-018-0131-2
更新日期:2018-07-01 00:00:00
abstract::When cells enter mitosis with DNA that is unfit to be segregated, the consequences appear to be loss of centrosome function, abnormal spindles and a failure to segregate chromosomes. These defects may result from the workings of a surveillance mechanism that acts to cull irreparable nuclei. ...
journal_title:Nature cell biology
pub_type: 评论,新闻
doi:10.1038/35000099
更新日期:2000-02-01 00:00:00
abstract::During meiosis, homologous chromosomes are sorted into pairs and are then intimately aligned, or synapsed, along their lengths while a proteinaceous structure, the synaptonemal complex, is assembled between them. However, little is known about how chromosomes first recognise each other. Here we show, by comparing the ...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1168
更新日期:2004-09-01 00:00:00
abstract::The transition from cellular quiescence (G0) into S phase is regulated by the mitogenic-activation of D-type cyclins and cyclin-dependent kinases (Cdks), the sequestration of the Cdk inhibitors (CDKIs), p21 and p27, and the hyperphosphorylation of Rb with release of E2F transcription factors. However, fibroblasts that...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1548
更新日期:2007-03-01 00:00:00
abstract::The molecular mechanisms underlying the formation of carriers trafficking from the Golgi complex to the cell surface are still ill-defined; nevertheless, the involvement of a lipid-based machinery is well established. This includes phosphatidylinositol 4-phosphate (PtdIns(4)P), the precursor for phosphatidylinositol 4...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1119
更新日期:2004-05-01 00:00:00
abstract::The remarkable stability of gene expression in somatic cells is exemplified by the way memory of an active gene state is retained when an endoderm cell nucleus is transplanted to an enucleated egg. Here we analyse the mechanism of a similar example of epigenetic memory. We find that memory can persist through 24 cell ...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb1674
更新日期:2008-01-01 00:00:00
abstract::Loss of spindle-pole integrity during mitosis leads to multipolarity independent of centrosome amplification. Multipolar-spindle conformation favours incorrect kinetochore-microtubule attachments, compromising faithful chromosome segregation and daughter-cell viability. Spindle-pole organization influences and is infl...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb2423
更新日期:2012-02-05 00:00:00
abstract::Rad23 is a nucleotide-excision repair protein with a previously unknown biochemical function. We determined that yeast and human Rad23 inhibited multi-ubiquitin (Ub) chain formation and the degradation of proteolytic substrates. Significantly, Rad23 could be co-precipitated with a substrate that contained a short mult...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/35023547
更新日期:2000-09-01 00:00:00
abstract::Although many genes that lead to different types of cancer when mutated have been identified, the cells that initiate tumour formation following accumulation of these mutations have, until recently, remained elusive. This review explores how mouse genetic lineage-tracing experiments that allow the expression of oncoge...
journal_title:Nature cell biology
pub_type: 杂志文章,评审
doi:10.1038/ncb2657
更新日期:2013-02-01 00:00:00
abstract::Coordination of microtubules and the actin cytoskeleton is important in several types of cell movement. mDia1 is a member of the formin-homology family of proteins and an effector of the small GTPase Rho. It contains the Rho-binding domain in its amino terminus and two distinct regions of formin homology, FH1 in the m...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/35050598
更新日期:2001-01-01 00:00:00
abstract::Parallel quantification of large numbers of messenger RNA transcripts using microarray technology promises to provide detailed insight into cellular processes involved in the regulation of gene expression. This should allow new understanding of signalling networks that operate in the cell and of the molecular basis an...
journal_title:Nature cell biology
pub_type: 杂志文章,评审
doi:10.1038/35087138
更新日期:2001-08-01 00:00:00
abstract::Endothelial cells and leptin receptor+ (LepR+) stromal cells are critical sources of haematopoietic stem cell (HSC) niche factors, including stem cell factor (SCF), in bone marrow. After irradiation or chemotherapy, these cells are depleted while adipocytes become abundant. We discovered that bone marrow adipocytes sy...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb3570
更新日期:2017-08-01 00:00:00
abstract::We have identified Rab10 as an ER-specific Rab GTPase that regulates ER structure and dynamics. We show that Rab10 localizes to the ER and to dynamic ER-associated structures that track along microtubules and mark the position of new ER tubule growth. Rab10 depletion or expression of a Rab10 GDP-locked mutant alters E...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb2647
更新日期:2013-02-01 00:00:00
abstract::In mammals, motile cilia cover many organs, such as fallopian tubes, respiratory tracts and brain ventricles. The development and function of these organs critically depend on efficient directional fluid flow ensured by the alignment of ciliary beating. To identify the mechanisms involved in this process, we analysed ...
journal_title:Nature cell biology
pub_type: 杂志文章
doi:10.1038/ncb2040
更新日期:2010-04-01 00:00:00