Evidence map›Paper›PMID 25498153›Full record

ArticleeLife2014

Dynamic recruitment of the curvature-sensitive protein ArhGAP44 to nanoscale membrane deformations limits exploratory filopodia initiation in neurons.

Milos Galic, Feng-Chiao Tsai, Sean R Collins, Maja Matis, Samuel Bandara, Tobias Meyer

Abstract read
In one paragraph

Article in eLife, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Interplay between mechanics and signalling in regulating cell fate.Nature reviews. Molecular cell biology · 2022
    Review
  11. Review
  12. Moving through a changing world: Single cell migration in 2D vs. 3D.Frontiers in cell and developmental biology · 2022
    Review
  13. Article
  14. Dendrite tapering actuates a self-organizing signaling circuit for stochastic filopodia initiation in neurons.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Article
  16. Complexity and graded regulation of neuronal cell-type-specific alternative splicing revealed by single-cell RNA sequencing.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  17. Article
  18. The plasma membrane as a mechanochemical transducer.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Review
  19. Article
  20. Review
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

6 authors.

Milos GalicDepartment of Chemical and Systems Biology, Stanford University, Stanford, United States.
Feng-Chiao TsaiDepartment of Chemical and Systems Biology, Stanford University, Stanford, United States.
Sean R CollinsDepartment of Chemical and Systems Biology, Stanford University, Stanford, United States.
Maja MatisDepartment of Pathology, Stanford University, Stanford, United States.
Samuel BandaraDepartment of Chemical and Systems Biology, Stanford University, Stanford, United States.
Tobias MeyerDepartment of Chemical and Systems Biology, Stanford University, Stanford, United States.

Funding

TRAINING & OUTREACH COREP50GM107615 · NIGMS · STANFORD UNIVERSITY · PI FERRELL, JAMES E. · 2013 to 2017
$10.9M
Chemotactic Signal TransductionR01GM063702 · NIGMS · STANFORD UNIVERSITY · PI MEYER, TOBIAS · 2002 to 2017
$5.3M
REGULATION OF CA++/CALMODULIN KINASE BY NEUROTRANSMITTERR01GM030179 · NIGMS · STANFORD UNIVERSITY · PI MEYER, TOBIAS · 1985 to 2018
$4.9M
Lipid Second Messenger and Small GTPase Signal Integration in NeuronsR01MH064801 · NIMH · STANFORD UNIVERSITY · PI MEYER, TOBIAS · 2001 to 2011
$3.2M
Bar Domains and Neuronal Membrane StructureR01MH095087 · NIMH · STANFORD UNIVERSITY · PI MEYER, TOBIAS · 2011 to 2014
$1.1M
NIGMS NIH HHS GM063702NIGMS NIH HHS P50 GM107615NIGMS NIH HHS R01 GM030179NIGMS NIH HHS R01 GM063702NIMH NIH HHS MH064801NIMH NIH HHS MH095087NIMH NIH HHS R01 MH064801NIMH NIH HHS R01 MH095087
6 · The paper itself

Abstract

In the vertebrate central nervous system, exploratory filopodia transiently form on dendritic branches to sample the neuronal environment and initiate new trans-neuronal contacts. While much is known about the molecules that control filopodia extension and subsequent maturation into functional synapses, the mechanisms that regulate initiation of these dynamic, actin-rich structures have remained elusive. Here, we find that filopodia initiation is suppressed by recruitment of ArhGAP44 to actin-patches that seed filopodia. Recruitment is mediated by binding of a membrane curvature-sensing ArhGAP44 N-BAR domain to plasma membrane sections that were deformed inward by acto-myosin mediated contractile forces. A GAP domain in ArhGAP44 triggers local Rac-GTP hydrolysis, thus reducing actin polymerization required for filopodia formation. Additionally, ArhGAP44 expression increases during neuronal development, concurrent with a decrease in the rate of filopodia formation. Together, our data reveals a local auto-regulatory mechanism that limits initiation of filopodia via protein recruitment to nanoscale membrane deformations.

Indexed as

Actin CytoskeletonAnimalsBrainCell MembraneDendritesFemaleFetusGene Knockdown TechniquesGTPase-Activating ProteinsHumansModels, BiologicalMyosinsNanoparticlesNeuronsProtein TransportPseudopodiaArhGAP44 protein, ratGTPase-Activating ProteinsMyosinsrac1 GTP-Binding Proteinactincell biologymembrane curvatureneuronrat

Identifiers

PMID25498153
PMCPMC4381785

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.