Evidence map›Paper›PMID 17893245›Full record

ArticleThe Journal of cell biology2007

Actin-myosin network reorganization breaks symmetry at the cell rear to spontaneously initiate polarized cell motility.

Patricia T Yam, Cyrus A Wilson, Lin Ji, Benedict Hebert, Erin L Barnhart, Natalie A Dye, Paul W Wiseman, Gaudenz Danuser, Julie A Theriot

Abstract read
In one paragraph

Article in The Journal of cell biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 127 papers.

0numbers the graph read from it
0cells of the map it votes in
127citing papers in PubMed
–field-weighted citation impact
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

127 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Contractile forces direct the chiral swirling of minimal cell collectives.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. A self-organizing single-cell morphology circuit optimizesbioRxiv : the preprint server for biology · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Mesenchymal cell migration on one-dimensional micropatterns.Frontiers in cell and developmental biology · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

67 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Patricia T YamDepartment of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA.
Cyrus A Wilson
Lin Ji
Benedict Hebert
Erin L Barnhart
Natalie A Dye
Paul W Wiseman
Gaudenz Danuser
Julie A Theriot

Funding

STRUCTUREU54GM064346 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI IMPERIALI, BARBARA · 2001 to 2010
$74.9M
Quantitative Fluorescent Speckle MicroscopyR01GM067230 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI DANUSER, GAUDENZ · 2003 to 2019
$3.3M
NIGMS NIH HHS R01 GM067230NIGMS NIH HHS R01 GM67230NIGMS NIH HHS U54 GM064346NIGMS NIH HHS U54 GM64346
6 · The paper itself

Abstract

We have analyzed the spontaneous symmetry breaking and initiation of actin-based motility in keratocytes (fish epithelial cells). In stationary keratocytes, the actin network flow was inwards and radially symmetric. Immediately before motility initiation, the actin network flow increased at the prospective cell rear and reoriented in the perinuclear region, aligning with the prospective axis of movement. Changes in actin network flow at the cell front were detectable only after cell polarization. Inhibition of myosin II or Rho kinase disrupted actin network organization and flow in the perinuclear region and decreased the motility initiation frequency, whereas increasing myosin II activity with calyculin A increased the motility initiation frequency. Local stimulation of myosin activity in stationary cells by the local application of calyculin A induced directed motility initiation away from the site of stimulation. Together, these results indicate that large-scale actin-myosin network reorganization and contractility at the cell rear initiate spontaneous symmetry breaking and polarized motility of keratocytes.

Indexed as

Cell MovementCell PolarityActinsAnimalsCell NucleusCell ShapeEpithelial CellsFishesIntracellular Signaling Peptides and ProteinsMarine ToxinsModels, BiologicalMyosinsOxazolesProtein Serine-Threonine Kinasesrho-Associated KinasesXenopusActinscalyculin AIntracellular Signaling Peptides and ProteinsMarine ToxinsMyosinsOxazolesProtein Serine-Threonine Kinasesrho-Associated Kinases

Identifiers

PMID17893245
PMCPMC2064654

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.