Evidence map›Paper›PMID 20418872›Full record

ArticleNature cell biology2010

Electron tomography reveals unbranched networks of actin filaments in lamellipodia.

Edit Urban, Sonja Jacob, Maria Nemethova, Guenter P Resch, J Victor Small

Abstract read
PubMed Publisher
In one paragraph

Article in Nature cell biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
16.3field-weighted citation impact, top 1% 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

90 citing papers in PubMed, 207 citations in OpenAlex.

  1. Article
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  6. Handling Difficult Cryo-ET Samples: A Study with Primary Neurons from Drosophila melanogaster.Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada · 2023
    Article
  7. Mechanisms of actin disassembly and turnover.The Journal of cell biology · 2023
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Moving through a changing world: Single cell migration in 2D vs. 3D.Frontiers in cell and developmental biology · 2022
    Review
  13. Article
  14. Filamin A Regulates Cardiovascular Remodeling.International journal of molecular sciences · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Three-dimensional organization of the cytoskeleton: A cryo-electron tomography perspective.Protein science : a publication of the Protein Society · 2020
    Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Edit UrbanInstitute of Molecular Biotechnology, Vienna 1030, Austria.
Sonja Jacob
Maria Nemethova
Guenter P Resch
J Victor Small
Institute of Molecular Biotechnology · ATResearch Institute of Molecular Pathology · AT

Funding

Austrian Science Fund FWF P 21292
6 · The paper itself

Abstract

Eukaryotic cells can initiate movement using the forces exerted by polymerizing actin filaments to extend lamellipodial and filopodial protrusions. In the current model, actin filaments in lamellipodia are organized in a branched, dendritic network. We applied electron tomography to vitreously frozen 'live' cells, fixed cells and cytoskeletons, embedded in vitreous ice or in deep-negative stain. In lamellipodia from four cell types, including rapidly migrating fish keratocytes, we found that actin filaments are almost exclusively unbranched. The vast majority of apparent filament junctions proved to be overlapping filaments, rather than branched end-to-side junctions. Analysis of the tomograms revealed that actin filaments terminate at the membrane interface within a zone several hundred nanometres wide at the lamellipodium front, and yielded the first direct measurements of filament densities. Actin filament pairs were also identified as lamellipodium components and bundle precursors. These data provide a new structural basis for understanding actin-driven protrusion during cell migration.

Indexed as

Actin CytoskeletonActinsAnimalsCell MovementCells, CulturedCryoelectron MicroscopyCytoskeletonElectron Microscope TomographyFishesHumansKeratinocytesPseudopodiaActins

Identifiers

PMID20418872
OpenAlexW2045030145

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.