Evidence map›Paper›PMID 20409712›Full record

ArticleCurrent biology : CB2010

Cortical actin dynamics facilitate early-stage centrosome separation.

Jian Cao, Justin Crest, Barbara Fasulo, William Sullivan

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 85 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Positioning centrioles and centrosomes.The Journal of cell biology · 2024
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Bone fracture healing: perspectives according to molecular basis.Journal of bone and mineral metabolism · 2021
    Review
  13. High-Resolution Analysis of Centrosome Behavior During Mitosis.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Jian CaoSinsheimer Laboratories, Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
Justin Crest
Barbara Fasulo
William Sullivan
University of California, Santa Cruz · US

Funding

CYTOKINESIS IN THE EARLY DROSOPHILA EMBRYOR01GM046409 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI SULLIVAN, WILLIAM T. · 1997 to 2014
$4.7M
DROSOPHILA EMBRYONIC NUCLEAR DIVISION MUTATIONSR29GM046409 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI SULLIVAN, WILLIAM T. · 1991 to 1995
–
NIGMS NIH HHS GM046409NIGMS NIH HHS R01 GM046409
6 · The paper itself

Abstract

Proper centrosome separation is a prerequisite for positioning the bipolar spindle. Although studies demonstrate that microtubules (MTs) and their associated motors drive centrosome separation [1], the role of actin in centrosome separation remains less clear. Studies in tissue culture cells indicate that actin- and myosin-based cortical flow is primarily responsible for driving late centrosome separation [2], whereas other studies suggest that actin plays a more passive role by serving as an attachment site for astral MTs to pull centrosomes apart [3-6]. Here we demonstrate that prior to nuclear envelope breakdown (NEB) in Drosophila embryos, proper centrosome separation does not require myosin II but requires dynamic actin rearrangements at the growing edge of the interphase cap. Both Arp2/3- and Formin-mediated actin remodeling are required for separating the centrosome pairs before NEB. The Apc2-Armadillo complex appears to link cap expansion to centrosome separation. In contrast, the mechanisms driving centrosome separation after NEB are independent of the actin cytoskeleton and compensate for earlier separation defects. Our studies show that the dynamics of actin polymerization drive centrosome separation, and this has important implications for centrosome positioning during processes such as cell migration [7, 8], cell polarity maintenance [9, 10], and asymmetric cell division [11, 12].

Indexed as

Actin-Related Protein 2-3 ComplexActinsAnimalsCarrier ProteinsCell CycleCentrosomeCytoskeletonDrosophila melanogasterDrosophila ProteinsForminsMicrotubulesMyosin Type IINuclear EnveloperhoA GTP-Binding ProteinSpindle ApparatusTubulinActin-Related Protein 2-3 ComplexActinsAPC2 protein, DrosophilaCarrier Proteinsdiaphanous protein, DrosophilaDrosophila ProteinsForminsMyosin Type IIrhoA GTP-Binding ProteinTubulinTumor Suppressor Proteins

Identifiers

PMID20409712
PMCPMC3032811
OpenAlexW2163653701

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.