Evidence map›Paper›PMID 22405866›Full record

ArticleCurrent biology : CB2012

Checkpoint-independent stabilization of kinetochore-microtubule attachments by Mad2 in human cells.

Lilian Kabeche, Duane A Compton

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

47 citing papers in PubMed, 75 citations in OpenAlex.

  1. The two sides of chromosomal instability: drivers and brakes in cancer.Signal transduction and targeted therapy · 2024
    Review
  2. Article
  3. The Role of Non-Coding RNAs in Chromosomal Instability in Cancer.The Journal of pharmacology and experimental therapeutics · 2023
    Review
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  18. The Role of Aneuploidy in Cancer Evolution.Cold Spring Harbor perspectives in medicine · 2017
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Lilian KabecheDepartment of Biochemistry, Dartmouth Medical School, Hanover, NH 03755, USA.
Duane A Compton
Dartmouth College · USDartmouth–Hitchcock Medical Center · US

Funding

Molecular and Cellular Biology at DartmouthT32GM008704 · NIGMS · DARTMOUTH COLLEGE · PI COMPTON, DUANE A. · 1998 to 2018
$6.8M
Organization of the Mammalian Mitotic SpindleR37GM051542 · NIGMS · DARTMOUTH COLLEGE · PI COMPTON, DUANE A. · 2013 to 2022
$6.7M
Organization of the Mammilian Mitotic SpindleR01GM051542 · NIGMS · DARTMOUTH COLLEGE · PI COMPTON, DUANE A. · 1996 to 2012
$4.6M
NIGMS NIH HHS GM008704NIGMS NIH HHS GM51542NIGMS NIH HHS R01 GM051542NIGMS NIH HHS R37 GM051542NIGMS NIH HHS T32 GM008704
6 · The paper itself

Abstract

Faithful chromosome segregation is required for cell and organism viability and relies on both the mitotic checkpoint and the machinery that corrects kinetochore-microtubule (k-MT) attachment errors. Most solid tumors have aneuploid karyotypes and many missegregate chromosomes at high rates in a phenomenon called chromosomal instability (CIN). Mad2 is essential for mitotic checkpoint function and is frequently overexpressed in human tumors that are CIN. For unknown reasons, cells overexpressing Mad2 display high rates of lagging chromosomes. Here, we explore this phenomenon and show that k-MT attachments are hyperstabilized by Mad2 overexpression and that this undermines the efficiency of correction of k-MT attachment errors. Mad2 affects k-MT attachment stability independently of the mitotic checkpoint because k-MT attachments are unaltered upon Mad1 depletion and Mad2 overexpression hyperstabilizes k-MT attachments in Mad1-deficient cells. Mad2 mediates these effects with Cdc20 by altering the centromeric localization and activity of Aurora B kinase, a known regulator of k-MT attachment stability. These data reveal a new function for Mad2 to stabilize k-MT attachments independent of the checkpoint and explain why Mad2 overexpression increases chromosome missegregation to cause chromosomal instability in human tumors.

Indexed as

Chromosome SegregationAurora Kinase BAurora KinasesCalcium-Binding ProteinsCdc20 ProteinsCell Cycle ProteinsCell LineCentromereGreen Fluorescent ProteinsKinetochoresMad2 ProteinsMicroscopy, FluorescenceMicrotubulesM Phase Cell Cycle CheckpointsNuclear ProteinsProtein Serine-Threonine KinasesAURKB protein, humanAurora Kinase BAurora KinasesCalcium-Binding ProteinsCDC20 protein, humanCdc20 ProteinsCell Cycle ProteinsGreen Fluorescent ProteinsMAD1L1 protein, humanMAD2L1 protein, humanMad2 ProteinsNuclear ProteinsProtein Serine-Threonine KinasesRepressor ProteinsTubulin

Identifiers

PMID22405866
PMCPMC3326208
OpenAlexW2060714341

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.