Evidence map›Paper›PMID 20498637›Full record

ArticleOncogene2010

Deficiency in myosin light-chain phosphorylation causes cytokinesis failure and multipolarity in cancer cells.

Q Wu, R M Sahasrabudhe, L Z Luo, D W Lewis, S M Gollin, W S Saunders

Open access · bronzeAbstract read
In one paragraph

Article in Oncogene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 63 citations in OpenAlex.

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  20. Centrosomes, chromosome instability (CIN) and aneuploidy.Current opinion in cell biology · 2012
    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 at 3 institutions in 1 country.

Q WuDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.
R M Sahasrabudhe
L Z Luo
D W Lewis
S M Gollin
W S Saunders
University of Pittsburgh · USCity Of Hope National Medical Center · USUPMC Hillman Cancer Center · US

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Jessie Nedrow · 1988 to 2026
$158.0M
Origin of Spindle Multipolarity in Oral Cancer CellsR01DE016086 · NIDCR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SAUNDERS, WILLIAM · 2004 to 2015
$3.6M
Characterization of the 11q13 Amplicon in Oral CancerR01DE014729 · NIDCR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOLLIN, SUSANNE M · 2002 to 2006
$1.7M
NCI NIH HHS P30 CA047904NCI NIH HHS P30CA47904NIDCR NIH HHS R01 DE014729NIDCR NIH HHS R01 DE016086NIDCR NIH HHS R01DE016086NIDCR NIH HHS R01DE14729
6 · The paper itself

Abstract

Cancer cells often have unstable genomes and increased centrosome and chromosome numbers, which are an important part of malignant transformation in the most recent model of tumorigenesis. However, very little is known about divisional failures in cancer cells that may lead to chromosomal and centrosomal amplifications. In this study, we show that cancer cells often failed at cytokinesis because of decreased phosphorylation of the myosin regulatory light chain (MLC), a key regulatory component of cortical contraction during division. Reduced MLC phosphorylation was associated with high expression of myosin phosphatase and/or reduced myosin light-chain kinase levels. Furthermore, expression of phosphomimetic MLC largely prevented cytokinesis failure in the tested cancer cells. When myosin light-chain phosphorylation was restored to normal levels by phosphatase knockdown, multinucleation and multipolar mitosis were markedly reduced, resulting in enhanced genome stabilization. Furthermore, both overexpression of myosin phosphatase or inhibition of the myosin light-chain kinase in nonmalignant cells could recapitulate some of the mitotic defects of cancer cells, including multinucleation and multipolar spindles, indicating that these changes are sufficient to reproduce the cytokinesis failures we see in cancer cells. These results for the first time define the molecular defects leading to divisional failure in cancer cells.

Indexed as

CytokinesisCell Line, TumorCell PolarityHumansMouth NeoplasmsMyosin-Light-Chain KinaseMyosin-Light-Chain PhosphataseMyosin Light ChainsNeoplasmsPhosphorylationMyosin-Light-Chain KinaseMyosin-Light-Chain PhosphataseMyosin Light ChainsPPP1R12A protein, human

Identifiers

PMID20498637
PMCPMC2911497
OpenAlexW2018150249

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.