Abstract：
:Chromosome segregation during mitosis is mediated by the mitotic spindle, a structure composed of microtubules associated with a variety of proteins. Additionally, a distinct biochemical milieu, the 'spindle matrix', has long been proposed to assist this process and recent work provided compelling evidence for its existence in living animal cells. Here we focus on the dynamic properties of such a matrix, highlighting its roles in the spatial and temporal control of mitotic fidelity in respect to recent findings in different systems. Based on these findings and on theoretical principles behind molecular crowding, we challenge the idea of the spindle matrix as one functional entity and propose that some observed phenomena associated with this elusive structure could simply be a consequence of intrinsic cellular architecture and cytoplasmic 'compartmentalization' during mitosis.
journal_name
Curr Opin Cell Bioljournal_title
Current opinion in cell biologyauthors
Schweizer N,Weiss M,Maiato Hdoi
10.1016/j.ceb.2014.01.002subject
Has Abstractpub_date
2014-06-01 00:00:00pages
1-7eissn
0955-0674issn
1879-0410pii
S0955-0674(14)00003-9journal_volume
28pub_type
杂志文章,评审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：:A hallmark of polarity in most migrating cells is the orientation of the nuclear centrosomal (NC) axis relative to the front-back cellular axis. Here, we review 'effector functions' associated with the NC axis during cell migration. We highlight recent research that has demonstrated that the orientation of the NC axis...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2011.08.001
更新日期：2011-10-01 00:00:00
abstract：:Centromeres and telomeres are both composed of specific DNA sequences and unique chromosomal proteins. Isolation and characterization of some of these sequences and proteins has greatly increased our knowledge of centromere and telomere structure. This information is allowing us to determine how centromeres and telome...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90002-t
更新日期：1992-06-01 00:00:00
abstract：:Directional guidance of migrating cells is relatively well explored in the reductionist setting of cell culture experiments. Here spatial gradients of chemical cues as well as gradients of mechanical substrate characteristics prove sufficient to attract single cells as well as their collectives. How such gradients pre...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2014.05.010
更新日期：2014-10-01 00:00:00
abstract：:A standout feature of eukaryotic cells is the presence of organelles with distinct chemical compositions and physical properties, which aid in the accomplishment of specialized metabolic tasks. This complex topology, however, makes a permanent crosstalk between the organelles a necessity for the coordination of cellul...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.03.002
更新日期：2015-08-01 00:00:00
abstract：:Concomitant with packaging the genome, the cell nucleus must also spatially organize the nucleoplasm. This complex mixture of proteins and nucleic acids partitions into a variety of phase-separated, membraneless organelles called nuclear bodies. Significant progress has been made in understanding the relationship betw...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2017.03.003
更新日期：2017-06-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2006.10.003
更新日期：2006-12-01 00:00:00
abstract：:Three recent reports indicate that p120-catenin can modulate the activities of RhoA, Rac and Cdc42, suggesting an elegant and previously unexpected mechanism for regulating the balance between adhesive and motile cellular phenotypes. The observations in these reports provide important new clues toward p120's mechanism...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00258-1
更新日期：2001-10-01 00:00:00
abstract：:The past several years have seen major advances in our understanding of the mechanisms of microtubule destabilization by oncoprotein18/stathmin (Op18/stathmin) and related proteins. New structural information has clearly shown how members of the Op18/stathmin protein family bind tubulin dimers and suggests models for ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(01)00289-7
更新日期：2002-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2003.10.014
更新日期：2003-12-01 00:00:00
abstract：:Cellular asymmetries have been proposed to play a role in plant embryogenesis. Genetic studies of Arabidopsis and other experimental approaches in several plant species have addressed the origins of cellular asymmetry in specific cases. Although zygote polarity, which precedes the formation of the apical-basal axis of...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80087-7
更新日期：1997-12-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2004.07.002
更新日期：2004-10-01 00:00:00
abstract：:This past year has seen a significant increase in our understanding of eukaryotic origins of replication, of the proteins that identify these origins, of DNA sequences that promote their unwinding, and of transcription factors that stimulate origin activity. DNA replication begins at specific sites in both simple and ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90008-e
更新日期：1993-06-01 00:00:00
abstract：:During the preceding year significant progress has been made in our understanding of laminin structure and expression. Highlights include the identification of new subunit chains and molecular isoforms as well as new information on tissue-specific gene expression, laminin self-assembly and interactions with other matr...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90038-r
更新日期：1993-10-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(99)00028-9
更新日期：1999-10-01 00:00:00
abstract：:Maintenance of the highly organized striated muscle tissue requires a cell-wide dynamic network that through interactions with all vital cell structures, provides an effective mechanochemical integrator of morphology and function, absolutely necessary for intra-cellular and intercellular coordination of all muscle fun...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.01.004
更新日期：2015-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2008.10.002
更新日期：2008-12-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2004.04.004
更新日期：2004-06-01 00:00:00
abstract：:There is accumulating evidence that lateral assemblies (rafts) of sphingolipids and cholesterol form platforms that serve to support numerous cellular events in membrane traffic and signal transduction. Raft membrane microdomains are thought to function by preferentially associating with specific proteins while exclud...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80030-0
更新日期：1997-08-01 00:00:00
abstract：:The septins are a novel family of proteins that were first recognized in yeast as proteins associated with the neck filaments. Recent work has shown that septins are also present in other fungi, insects, and vertebrates. Despite the apparent differences in modes of cytokinesis amongst species, septins appear to be ess...
journal_title：Current opinion in cell biology
pub_type： 杂志文章
doi：10.1016/s0955-0674(96)80054-8
更新日期：1996-02-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2008.06.002
更新日期：2008-08-01 00:00:00
abstract：:1990 has been a year of continued exciting developments in cell cycle control. Progress has occurred in delineating the mechanism of activation of maturation-promoting factor during entry into mitosis and the mechanism of cyclin degradation responsible for exit from mitosis. Notable advances have also occurred in our ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(91)90151-n
更新日期：1991-04-01 00:00:00
abstract：:Recent advances in understanding spatial genome organization inside the nucleus have shown that chromatin is compartmentalized into megabase-scale units known as topologically associating domains (TADs). In further studies, TADs were linked to differing transcriptional activity, suggesting that they might provide a sc...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.01.003
更新日期：2020-06-01 00:00:00
abstract：:Mammalian Unc-51-like kinases 1 and 2 (ULK1 and ULK2) belong to the ULK/Atg1 family of serine/threonine kinases, which are conserved from yeast to mammals. Although ULK/Atg1 is best known for regulating flux through the autophagy pathway, it has evolutionarily conserved noncanonical functions in protein trafficking th...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2017.02.011
更新日期：2017-04-01 00:00:00
abstract：:Dystroglycan provides a crucial linkage between the cytoskeleton and the basement membrane for skeletal muscle cells. Disruption of this linkage leads to various forms of muscular dystrophy. Significant recent advances in understanding the structure and function of dystroglycan include detailed in vitro and in vivo an...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80103-7
更新日期：1996-10-01 00:00:00
abstract：:Chaperones are centrally involved in the control of protein structure, function, localization and transport. A flurry of scientific activity continues to examine the molecular nature of chaperone-substrate recognition and the role of auxiliary chaperones (cohort proteins) and small molecules that expedite these proces...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90130-5
更新日期：1992-12-01 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：:Recent evidence on the distribution of desmosomal glycoprotein isoforms that shows their combined expression in individual desmosomes has strengthened the belief that the latter are involved in epithelial differentiation and morphogenesis. It has been shown that cellular interactions and protein kinase C can modulate ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80108-6
更新日期：1996-10-01 00:00:00
abstract：:Several homeotic genes controlling flower development have been characterized in Antirrhinum and Arabidopsis. Comparisons of their mutant phenotypes, expression patterns and genetic interactions have revealed that many of the basic mechanisms controlling flower development have been conserved in evolution, although im...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90120-2
更新日期：1992-12-01 00:00:00
abstract：:Microtubules are polymeric tubes that switch between phases of growth and shortening, and this property is essential to drive key cellular processes. Microtubules are composed of protofilaments formed by longitudinally arranged tubulin dimers. Microtubule dynamics can be affected by structural perturbations at the plu...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2018.02.015
更新日期：2018-02-01 00:00:00
