Evidence map›Paper›PMID 21274008›Full record

ArticleCell death and differentiation2011

MTBP plays a crucial role in mitotic progression and chromosome segregation.

N Agarwal, Y Tochigi, A S Adhikari, S Cui, Y Cui, T Iwakuma

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

17 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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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

6 authors at 2 institutions in 1 country.

N AgarwalDepartment of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA.
Y Tochigi
A S Adhikari
S Cui
Y Cui
T Iwakuma
Louisiana State University Health Sciences Center New Orleans · USStanley Foundation · US

Funding

UNCOVERING THE MECHANISMS OF OSTEOSARCOMA METASTASIS SUPPRESSION BY MTBPP20RR020152 · NCRR · TULANE UNIVERSITY OF LOUISIANA · PI YOU, ZONGBING · 2004 to 2011
$17.0M
TUMOR MICROENVIRONMENT AND B CELL LYMPHOMASP20RR021970 · NCRR · LSU HEALTH SCIENCES CENTER · PI ESTRADA, JOHN J. · 2005 to 2011
$14.1M
In vivo targeted DC vaccine to activate anti-tumor CTLR01CA112065 · NCI · LSU HEALTH SCIENCES CENTER · PI CUI, YAN · 2005 to 2009
$1.6M
NCI NIH HHS R01 CA112065NCRR NIH HHS P20 RR020152NCRR NIH HHS P20 RR020152-02NCRR NIH HHS P20 RR021970
6 · The paper itself

Abstract

Murine double minute 2 (MDM2) binding protein (MTBP) has been implicated in tumor cell proliferation, but the underlying mechanisms remain unclear. The results of MTBP expression analysis during cell cycle progression demonstrated that MTBP protein was rapidly degraded during mitosis. Immunofluorescence studies revealed that a portion of MTBP was localized at the kinetochores during prometaphase. MTBP overexpression delayed mitotic progression from nuclear envelope breakdown (NEB) to anaphase onset and induced abnormal chromosome segregation such as lagging chromosomes, chromosome bridges, and multipolar chromosome segregation. Conversely, MTBP downmodulation caused an abbreviated metaphase and insufficient mitotic arrest, resulting in abnormal chromosome segregation, aneuploidy, decreased cell proliferation, senescence, and cell death, similar to that of Mad2 (mitotic arrest-deficient 2) downmodulation. Furthermore, MTBP downmodulation inhibited the accumulation of Mad1 and Mad2, but not BubR1 (budding uninhibited by benzimidazoles related 1), on the kinetochores, whereas MTBP overexpression inhibited the release of Mad2 from the metaphase kinetochores. These results may imply that MTBP has an important role in recruiting and/or retaining the Mad1/Mad2 complex at the kinetochores during prometaphase, but its degradation is required for silencing the mitotic checkpoint. Together, this study indicates that MTBP has a crucial role in proper mitotic progression and faithful chromosome segregation, providing new insights into regulation of the mitotic checkpoint.

Indexed as

Chromosome SegregationMitosisAneuploidyApoptosisCalcium-Binding ProteinsCarrier ProteinsCell Cycle ProteinsCell Line, TumorCell ProliferationCellular SenescenceHumansKinetochoresMad2 ProteinsMetaphaseProtein Serine-Threonine KinasesRepressor ProteinsBUB1 protein, humanBub1 spindle checkpoint proteinCalcium-Binding ProteinsCarrier ProteinsCell Cycle ProteinsMAD2L1 protein, humanMad2 ProteinsMTBP protein, humanProtein Serine-Threonine KinasesRepressor ProteinsRNA, Small Interfering

Identifiers

PMID21274008
PMCPMC3131950
OpenAlexW2033559260

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.