Evidence map›Paper›PMID 19254711›Full record

ArticleExperimental cell research2009

p190RhoGAP negatively regulates Rho activity at the cleavage furrow of mitotic cells.

Ling Su, Olivier Pertz, Masahito Mikawa, Klaus Hahn, Sarah J Parsons

Open access · greenAbstract read
In one paragraph

Article in Experimental cell research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.9field-weighted citation impact, top 17% 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

27 citing papers in PubMed, 35 citations in OpenAlex.

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  6. Connections between the cell cycle, cell adhesion and the cytoskeleton.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Review
  7. p190RhoGAPs, theCells · 2019
    Review
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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

5 authors at 2 institutions in 1 country.

Ling SuDepartment of Microbiology and Cancer Center, University of Virginia Health System, P O Box 800734, Charlottesville, VA 22908, USA.
Olivier Pertz
Masahito Mikawa
Klaus Hahn
Sarah J Parsons
University of Virginia Health System · USUniversity of North Carolina at Chapel Hill · US

Funding

STRUCTUREU54GM064346 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI IMPERIALI, BARBARA · 2001 to 2010
$74.9M
The Src Target, p190RhoGAP, in Growth RegulationR01CA039438 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PARSONS, SARAH J · 1985 to 2008
$2.0M
NCI NIH HHS CA39438NCI NIH HHS R01 CA039438NIGMS NIH HHS GM64346NIGMS NIH HHS U54 GM064346
6 · The paper itself

Abstract

Previous studies demonstrated that p190RhoGAP (p190) negatively affects cytokinesis in a RhoGAP-dependent manner, suggesting that regulation of Rho may be a critical mechanism of p190 action during cytokinesis. P190 localizes to the cleavage furrow (CF) of dividing cells, and its levels decrease during late mitosis by an ubiquitin-mediated mechanism, consistent with the hypothesis that high RhoGTP levels are required for completion of cytokinesis. To determine whether RhoGTP levels in the CF are affected by p190 and to define the phase(s) of cytokinesis in which p190 is involved, we used FRET analysis alone or in combination with time-lapse microscopy. In normal cell division activated Rho accumulated at the cell equator in early anaphase and in the contractile ring, where it co-localized with p190. Real-time movies revealed that cells expressing elevated levels of p190 exhibited multiple cycles of abnormal CF site selection and ingression/regression, which resulted in failed or prolonged cytokinesis. This was accompanied by mislocalization of active Rho at the aberrant CF sites. Quantified data revealed that in contrast to ECT2 and dominate negative p190 (Y1283Ap190), which resulted in hyper-activated Rho, Rho activity in the CF was reduced by wild type p190 in a dose-dependent manner. These results suggest that p190 regulates cytokinesis through modulation of RhoGTP levels, thereby affecting CF specification site selection and subsequent ring contraction.

Indexed as

Breast NeoplasmsCell Line, TumorFemaleFluorescent Antibody TechniqueGTPase-Activating ProteinsGuanine Nucleotide Exchange FactorsHeLa CellsHumansMitosisRepressor ProteinsARHGAP35 protein, humanGTPase-Activating ProteinsGuanine Nucleotide Exchange FactorsRepressor Proteinsrho GTPase-activating protein

Identifiers

PMID19254711
PMCPMC2731427
OpenAlexW1971584907

What OpenQuestion holds

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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.