Evidence map›Paper›PMID 16673385›Full record

ArticleJournal of neurobiology2006

RhoA-kinase and myosin II are required for the maintenance of growth cone polarity and guidance by nerve growth factor.

Robert P Loudon, Lee D Silver, Hal F Yee, Gianluca Gallo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurobiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

80 citing papers in PubMed, 120 citations in OpenAlex.

  1. Review
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  6. Article
  7. Axonal pathfinding during the development of the nervous system.Annals of the Child Neurology Society · 2023
    Review
  8. Antagonistic Activities of Fmn2 and ADF Regulate Axonal F-Actin Patch Dynamics and the Initiation of Collateral Branching.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. TRP Channels Regulation of Rho GTPases in Brain Context and Diseases.Frontiers in cell and developmental biology · 2020
    Review
  17. Article
  18. Article
  19. Review
  20. Mammalian nonmuscle myosin II comes in three flavors.Biochemical and biophysical research communications · 2018
    Review

20 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

4 authors at 2 institutions in 1 country.

Robert P LoudonDepartment of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania 19129, USA.
Lee D Silver
Hal F Yee
Gianluca Gallo
Drexel University · USUniversity of California, San Francisco · US

Funding

Mechanisms of filopodia initiation and actin transportR01NS048090 · NINDS · DREXEL UNIVERSITY · PI GALLO, GIANLUCA · 2005 to 2009
$1.5M
Regulation of Hepatic Stellate Cell Responses to InjuryR01DK061532 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YEE, HAL F · 2003 to 2007
$1.4M
Mechanisms of filopodia initiation and actin transportR56NS048090 · NINDS · DREXEL UNIVERSITY · PI GALLO, GIANLUCA · 2010 to 2010
$385k
The Role of Actomyosin in Response to Injury and MyelinR01NS043251 · NINDS · DREXEL UNIVERSITY · PI GALLO, GIANLUCA · 2002 to 2004
$333k
STIMULUS/CONTRACTION COUPLING IN HEPATIC STELLATE CELLSK08DK002450 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI YEE, HAL F · 1997 to 2001
$245k
NIDDK NIH HHS DK02450NIDDK NIH HHS DK61532NIDDK NIH HHS R01 DK061532NINDS NIH HHS NS043251NINDS NIH HHS NS048090NINDS NIH HHS R01 NS043251NINDS NIH HHS R01 NS048090NINDS NIH HHS R56 NS048090
6 · The paper itself

Abstract

Growth cones are highly polarized and dynamic structures confined to the tips of axons. The polarity of growth cones is in part maintained by suppression of protrusive activity from the distal axon shaft, a process termed axon consolidation. The mechanistic basis of axon consolidation that contributes to the maintenance of growth cone polarity is not clear. We report that inhibition of RhoA-kinase (ROCK) or myosin II resulted in unstable consolidation of the distal axon as evidenced by increased filopodial and lamellipodial extension. Furthermore, when ROCK or myosin II was inhibited lamellipodia formed at the growth cone migrated onto the axon shaft. Analysis of EYFP-actin dynamics in the distal axon revealed that ROCK negatively regulates actin polymerization and initiation of protrusive structures from spontaneously formed axonal F-actin patches, the latter being an effect attributable to ROCK-mediated regulation of myosin II. Inhibition of ROCK or myosin II blocked growth cone turning toward NGF by preventing suppression of protrusive activity away from the source of NGF, resulting in aborted turning responses. These data elucidate the mechanism of growth cone polarity, provide evidence that consolidation of the distal axon is a component of guidance, and identify ROCK as a negative regulator of F-actin polymerization underlying protrusive activity in the distal axon.

Indexed as

Actin CytoskeletonActinsAnimalsCell DifferentiationCell MovementCell PolarityCells, CulturedChick EmbryoCuesDown-RegulationEnzyme InhibitorsGanglia, SpinalGrowth ConesIntracellular Signaling Peptides and ProteinsMyosin Type IINerve Growth FactorActinsEnzyme InhibitorsIntracellular Signaling Peptides and ProteinsMyosin Type IINerve Growth FactorPolymersProtein Serine-Threonine Kinasesrho-Associated Kinases

Identifiers

PMID16673385
PMCPMC1525020
OpenAlexW1988038213

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.