Evidence map›Paper›PMID 20506362›Full record

ArticleDevelopmental neurobiology2010

The rho GTPase Rac1 is required for proliferation and survival of progenitors in the developing forebrain.

Dino P Leone, Karpagam Srinivasan, Cord Brakebusch, Susan K McConnell

Open access · greenAbstract read
In one paragraph

Article in Developmental neurobiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

41 citing papers in PubMed, 66 citations in OpenAlex.

  1. Radial glia progenitor polarity in health and disease.Frontiers in cell and developmental biology · 2024
    Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Frontiers in cell and developmental biology · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. α2-Chimaerin is essential for neural stem cell homeostasis in mouse adult neurogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  17. Review
  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

4 authors at 2 institutions in 2 countries.

Dino P LeoneDepartment of Biology, Stanford University, Stanford, California 94305, USA.
Karpagam Srinivasan
Cord Brakebusch
Susan K McConnell
Stanford University · USUniversity of Copenhagen · DK

Funding

Neurogenesis and Migration in Developing Cerebral CortexR37MH051864 · NIMH · STANFORD UNIVERSITY · PI MCCONNELL, SUSAN K · 2008 to 2017
$3.8M
NEUROGENESIS AND MIGRATION IN DEVELOPING CEREBRAL CORTEXR01MH051864 · NIMH · STANFORD UNIVERSITY · PI MCCONNELL, SUSAN K · 1994 to 2006
$2.2M
NIMH NIH HHS MH51864NIMH NIH HHS R01 MH051864NIMH NIH HHS R37 MH051864
6 · The paper itself

Abstract

Progenitor cells in the ventricular zone (VZ) and subventricular zone (SVZ) of the developing forebrain give rise to neurons and glial cells, and are characterized by distinct morphologies and proliferative behaviors. The mechanisms that distinguish VZ and SVZ progenitors are not well understood, although the homeodomain transcription factor Cux2 and Cyclin D2, a core component of the cell cycle machinery, are specifically involved in controlling SVZ cell proliferation. Rho GTPases have been implicated in regulating the proliferation, differentiation, and migration of many cell types, and one family member, Cdc42, affects the polarity and proliferation of radial glial cells in the VZ. Here, we show that another family member, Rac1, is required for the normal proliferation and differentiation of SVZ progenitors and for survival of both VZ and SVZ progenitors. A forebrain-specific loss of Rac1 leads to an SVZ-specific reduction in proliferation, a concomitant increase in cell cycle exit, and premature differentiation. In Rac1 mutants, the SVZ and VZ can no longer be delineated, but rather fuse to become a single compact zone of intermingled cells. Cyclin D2 expression, which is normally expressed by both VZ and SVZ progenitors, is reduced in Rac1 mutants, suggesting that the mutant cells differentiate precociously. Rac1-deficient mice can still generate SVZ-derived upper layer neurons, indicating that Rac1 is not required for the acquisition of upper layer neuronal fates, but instead is needed for the normal regulation of proliferation by progenitor cells in the SVZ.

Indexed as

Cell ProliferationAnimalsApoptosisCell DifferentiationCell MovementCell SurvivalCerebral CortexCyclin D1Cyclin D2ImmunohistochemistryIn Situ HybridizationMiceMice, KnockoutNeurogenesisNeuronsNeuropeptidesCcnd1 protein, mouseCcnd2 protein, mouseCyclin D1Cyclin D2Neuropeptidesrac1 GTP-Binding ProteinRac1 protein, mouserac GTP-Binding Proteins

Identifiers

PMID20506362
PMCPMC2929936
OpenAlexW2057007431

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.