Evidence map›Paper›PMID 21924960›Full record

ArticleDevelopmental cell2011

Rac1 drives melanoblast organization during mouse development by orchestrating pseudopod- driven motility and cell-cycle progression.

Ang Li, Yafeng Ma, Xinzi Yu, Richard L Mort, Colin R Lindsay, David Stevenson, Douglas Strathdee, Robert H Insall, Jonathan Chernoff, Scott B Snapper and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Developmental cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

55 citing papers in PubMed, 110 citations in OpenAlex.

  1. Article
  2. Defining the role of integrins in melanoblast migrationMolecular biology of the cell · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Biology of melanocytes in mammals.Frontiers in cell and developmental biology · 2023
    Review
  9. Cancers · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Myosin 10 is involved in murine pigmentation.Experimental dermatology · 2019
    Article
  17. Article
  18. Article
  19. Actin-Based Cell Protrusion in a 3D Matrix.Trends in cell biology · 2018
    Review
  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

14 authors at 5 institutions in 3 countries.

Ang LiThe Beatson Institute for Cancer Research, Garscube Estate, Switchback Road, Bearsden, Glasgow G61 1BD, UK.
Yafeng Ma
Xinzi Yu
Richard L Mort
Colin R Lindsay
David Stevenson
Douglas Strathdee
Robert H Insall
Jonathan Chernoff
Scott B Snapper
Ian J Jackson
Lionel Larue
Owen J Sansom
Laura M Machesky
Cancer Research UK Scotland Institute · GBWestern General Hospital · GBBoston Children's Hospital · USFox Chase Cancer Center · USInstitut Curie · FR

Funding

WIP in TCR signaling and actin reorganizationP01HL059561 · NHLBI · IMMUNE DISEASE INSTITUTE, INC. · PI GEHA, RAIF SALIM · 1997 to 2012
$21.8M
Targeting the Kinome in Neurofibromatosis type 1R01CA142928 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI CHERNOFF, JONATHAN · 2010 to 2019
$3.9M
Signaling by p21-activated protein kinasesR01CA117884 · NCI · RESEARCH INST OF FOX CHASE CAN CTR · PI CHERNOFF, JONATHAN · 2006 to 2010
$1.8M
Cancer Research UK 12481Medical Research Council G0901991Medical Research Council G117/569Medical Research Council MC_PC_U127527200Medical Research Council MC_U127527200NCI NIH HHS CA142928NCI NIH HHS R01 CA117884NCI NIH HHS R01 CA142928NHLBI NIH HHS HL059561NHLBI NIH HHS P01 HL059561Worldwide Cancer Research 09-0227
6 · The paper itself

Abstract

During embryogenesis, melanoblasts proliferate and migrate ventrally through the developing dermis and epidermis as single cells. Targeted deletion of Rac1 in melanoblasts during embryogenesis causes defects in migration, cell-cycle progression, and cytokinesis. Rac1 null cells migrate markedly less efficiently, but surprisingly, global steering, crossing the dermal/epidermal junction, and homing to hair follicles occur normally. Melanoblasts navigate in the epidermis using two classes of protrusion: short stubs and long pseudopods. Short stubs are distinct from blebs and are driven by actin assembly but are independent of Rac1, Arp2/3 complex, myosin, or microtubules. Rac1 positively regulates the frequency of initiation of long pseudopods, which promote migration speed and directional plasticity. Scar/WAVE and Arp2/3 complex drive actin assembly for long pseudopod extension, which also depends on microtubule dynamics. Myosin contractility balances the extension of long pseudopods by effecting retraction and allowing force generation for movement through the complex 3D epidermal environment.

Indexed as

ActinsAnimalsCell CycleCell MovementCell ProliferationCells, CulturedEmbryo, MammalianEpidermal CellsEpidermisFemaleFlow CytometryGene Expression Regulation, DevelopmentalHair FollicleIntegrasesMaleMelanocytesActinsCre recombinaseIntegrasesMyosinsNeuropeptidesrac1 GTP-Binding ProteinRac1 protein, mouserac GTP-Binding Proteins

Identifiers

PMID21924960
PMCPMC3464460
OpenAlexW1991592847

What OpenQuestion holds

Textmetadata
LicenceTDM
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.