Evidence map›Paper›PMID 25918227›Full record

ArticleThe Journal of cell biology2015

Myosin light chain kinase regulates cell polarization independently of membrane tension or Rho kinase.

Sunny S Lou, Alba Diz-Muñoz, Orion D Weiner, Daniel A Fletcher, Julie A Theriot

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.0field-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

24 citing papers in PubMed, 47 citations in OpenAlex.

  1. Single-cell chiral symmetry breaking under confinement.bioRxiv : the preprint server for biology · 2026
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  7. Wound Healing Insights from Flies and Fish.Cold Spring Harbor perspectives in biology · 2022
    Review
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  14. Article
  15. A Tale of Two States: Normal and Transformed, With and Without Rigidity Sensing.Annual review of cell and developmental biology · 2019
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
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

5 authors at 4 institutions in 2 countries.

Sunny S LouDepartment of Chemical and Systems Biology, Department of Biochemistry, and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305.
Alba Diz-MuñozDepartment of Bioengineering and Biophysics Program, University of California, Berkeley, Berkeley, CA 94720 Department of Bioengineering and Biophysics Program, University of California, Berkeley, Berkeley, CA 94720 Cardiovascular Research Institute and Department of Biochemistry, University of California, San Francisco, San Francisco, CA 94158 Cardiovascular Research Institute and Department of Biochemistry, University of California, San Francisco, San Francisco, CA 94158.
Orion D WeinerCardiovascular Research Institute and Department of Biochemistry, University of California, San Francisco, San Francisco, CA 94158 Cardiovascular Research Institute and Department of Biochemistry, University of California, San Francisco, San Francisco, CA 94158.
Daniel A FletcherDepartment of Bioengineering and Biophysics Program, University of California, Berkeley, Berkeley, CA 94720 Department of Bioengineering and Biophysics Program, University of California, Berkeley, Berkeley, CA 94720 Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720.
Julie A TheriotDepartment of Chemical and Systems Biology, Department of Biochemistry, and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305 Department of Chemical and Systems Biology, Department of Biochemistry, and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305 theriot@stanford.edu.
Center for Systems Biology · USCardiovascular Institute Hospital · JPLawrence Berkeley National Laboratory · USUniversity of California, Berkeley · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007365 · NIGMS · STANFORD UNIVERSITY · PI CHUA, KATRIN F · 1985 to 2021
$33.8M
TRAINING & OUTREACH COREP50GM107615 · NIGMS · STANFORD UNIVERSITY · PI COVERT, MARKUS W · 2013 to 2017
$10.9M
Signal Integration in Neutrophil ChemotaxisR01GM084040 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WEINER, ORION D · 2008 to 2015
$2.6M
Mechanical Regulation of Actin NetworksR01GM074751 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI FLETCHER, DANIEL A · 2008 to 2015
$2.4M
Howard Hughes Medical InstituteNIGMS NIH HHS GM074751NIGMS NIH HHS GM084040NIGMS NIH HHS P50 GM107615NIGMS NIH HHS R01 GM074751NIGMS NIH HHS R01 GM084040NIGMS NIH HHS T32 GM007365NIGMS NIH HHS T32GM007365NIH HHS 1S10OD01227601
6 · The paper itself

Abstract

Cells polarize to a single front and rear to achieve rapid actin-based motility, but the mechanisms preventing the formation of multiple fronts are unclear. We developed embryonic zebrafish keratocytes as a model system for investigating establishment of a single axis. We observed that, although keratocytes from 2 d postfertilization (dpf) embryos resembled canonical fan-shaped keratocytes, keratocytes from 4 dpf embryos often formed multiple protrusions despite unchanged membrane tension. Using genomic, genetic, and pharmacological approaches, we determined that the multiple-protrusion phenotype was primarily due to increased myosin light chain kinase (MLCK) expression. MLCK activity influences cell polarity by increasing myosin accumulation in lamellipodia, which locally decreases protrusion lifetime, limiting lamellipodial size and allowing for multiple protrusions to coexist within the context of membrane tension limiting protrusion globally. In contrast, Rho kinase (ROCK) regulates myosin accumulation at the cell rear and does not determine protrusion size. These results suggest a novel MLCK-specific mechanism for controlling cell polarity via regulation of myosin activity in protrusions.

Indexed as

Cell PolarityAnimalsBlotting, WesternCell AdhesionCell MembraneCell MovementCells, CulturedCell ShapeCorneal KeratocytesEmbryo, NonmammalianFlow CytometryMyosin-Light-Chain KinaseMyosinsPhosphorylationPseudopodiaReal-Time Polymerase Chain ReactionMyosin-Light-Chain KinaseMyosinsrho-Associated KinasesRNA, Messenger

Identifiers

PMID25918227
PMCPMC4411279
OpenAlexW1991547734

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.