Evidence map›Paper›PMID 19109430›Full record

ArticleMolecular biology of the cell2009

Dorsal root ganglion neurons react to semaphorin 3A application through a biphasic response that requires multiple myosin II isoforms.

Jacquelyn A Brown, Robert B Wysolmerski, Paul C Bridgman

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

35 citing papers in PubMed, 51 citations in OpenAlex.

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  11. Mammalian nonmuscle myosin II comes in three flavors.Biochemical and biophysical research communications · 2018
    Review
  12. An Integrated Cytoskeletal Model of Neurite Outgrowth.Frontiers in cellular neuroscience · 2018
    Review
  13. Article
  14. Building Blocks of Functioning Brain: Cytoskeletal Dynamics in Neuronal Development.International review of cell and molecular biology · 2016
    Review
  15. Review
  16. Article
  17. Different modes of growth cone collapse in NG 108-15 cells.European biophysics journal : EBJ · 2013
    Article
  18. Article
  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

3 authors at 2 institutions in 1 country.

Jacquelyn A BrownDepartment of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Robert B Wysolmerski
Paul C Bridgman
Washington University in St. Louis · USWest Virginia University · US

Funding

THE ROLE OF HEF1 PROTEIN IN INVASION OF METASTATIC BREAST CANCERP20RR016440 · NCRR · WEST VIRGINIA UNIVERSITY · PI GRABER, STEPHEN G · 2001 to 2010
$22.8M
Washington University Center for Translational NeuroscienceP30NS057105 · NINDS · WASHINGTON UNIVERSITY · PI HOLTZMAN, DAVID M. · 2006 to 2011
$8.7M
REGULATION OF ENDOTHELIAL CELL ISOMETRIC TENSIONR01HL045788 · NHLBI · WEST VIRGINIA UNIVERSITY · PI WYSOLMERSKI, ROBERT B. · 1996 to 2006
$1.9M
NERVE GROWTH CONE LOCOMOTIONR01NS026150 · NINDS · WASHINGTON UNIVERSITY · PI BRIDGMAN, PAUL C · 1988 to 2007
$1.7M
ENDOTHELIAL CELL RETRACTION AND EDEMA OF ARDSR29HL045788 · NHLBI · SAINT LOUIS UNIVERSITY · PI WYSOLMERSKI, ROBERT B. · 1991 to 1995
–
NCRR NIH HHS P20 RR016440NCRR NIH HHS P20-RR16440NHLBI NIH HHS HL-45788NHLBI NIH HHS R01 HL045788NINDS NIH HHS NS057105NINDS NIH HHS NS26150NINDS NIH HHS P30 NS057105NINDS NIH HHS R01 NS026150
6 · The paper itself

Abstract

Growth cone responses to guidance cues provide the basis for neuronal pathfinding. Although many cues have been identified, less is known about how signals are translated into the cytoskeletal rearrangements that steer directional changes during pathfinding. Here we show that the response of dorsal root ganglion (DRG) neurons to Semaphorin 3A gradients can be divided into two steps: growth cone collapse and retraction. Collapse is inhibited by overexpression of myosin IIA or growth on high substrate-bound laminin-1. Inhibition of collapse also prevents retractions; however collapse can occur without retraction. Inhibition of myosin II activity with blebbistatin or by using neurons from myosin IIB knockouts inhibits retraction. Collapse is associated with movement of myosin IIA from the growth cone to the neurite. Myosin IIB redistributes from a broad distribution to the rear of the growth cone and neck of the connecting neurite. High substrate-bound laminin-1 prevents or reverses these changes. This suggests a model for the Sema 3A response that involves loss of growth cone myosin IIA to facilitate actin meshwork instability and collapse, followed by myosin IIB concentration at the rear of the cone and neck region where it associates with actin bundles to drive retraction.

Indexed as

ActinsAnimalsFluorescent Antibody TechniqueGanglia, SpinalGreen Fluorescent ProteinsGrowth ConesLamininMiceModels, BiologicalMyosin Type IINeuronsNonmuscle Myosin Type IIANonmuscle Myosin Type IIBProtein IsoformsRecombinant Fusion ProteinsSemaphorin-3AActinsGreen Fluorescent ProteinsLamininlaminin 1Myosin Type IINonmuscle Myosin Type IIANonmuscle Myosin Type IIBProtein IsoformsRecombinant Fusion ProteinsSemaphorin-3A

Identifiers

PMID19109430
PMCPMC2642746
OpenAlexW2118140234

What OpenQuestion holds

Textmetadata
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.