Evidence map›Paper›PMID 38727808›Full record

ArticleThe Journal of cell biology2024

Chromosome size-dependent polar ejection force impairs mammalian mitotic error correction.

Megan K Chong, Miquel Rosas-Salvans, Vanna Tran, Sophie Dumont

Abstract read
In one paragraph

Article in The Journal of cell biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Structure and function of the outer kinetochore.Nature reviews. Molecular cell biology · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
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  7. Measuring and modeling the dynamics of mitotic error correction.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Megan K ChongTetrad Graduate Program, University of California, San Francisco , San Francisco, CA, USA.ORCID 0000-0002-4271-4365
Miquel Rosas-SalvansDepartment of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA.ORCID 0000-0002-5397-121X
Vanna TranTetrad Graduate Program, University of California, San Francisco , San Francisco, CA, USA.ORCID 0000-0002-0234-5817
Sophie DumontTetrad Graduate Program, University of California, San Francisco , San Francisco, CA, USA.ORCID 0000-0002-8283-1523

Funding

Tetrad: Genetics, Cell Biology, Biochemistry and Molecular Biology Training GrantT32GM139786 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Natalia Jura, David Paul Toczyski · 2021 to 2026
$6.5M
Microscopy system upgradeR35GM136420 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Sophie Dumont · 2020 to 2026
$4.6M
Integrative Program in Complex Biological System (ipCBS)T32EB009383 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MARSHALL, WALLACE, WEINER, ORION D · 2009 to 2022
$3.2M
Error Correction in Mammalian Mitosis: Defining Physical Cues and Integration MechanismsF31CA265136 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CHONG, MEGAN KAIULANI · 2021 to 2023
$127k
NCI NIH HHS F31 CA265136NIBIB NIH HHS T32 EB009383NIGMS NIH HHS R35 GM136420NIGMS NIH HHS T32 GM139786NIH HHS R35GM136420
6 · The paper itself

Abstract

Accurate chromosome segregation requires sister kinetochores to biorient, attaching to opposite spindle poles. To this end, the mammalian kinetochore destabilizes incorrect attachments and stabilizes correct ones, but how it discriminates between these is not yet clear. Here, we test the model that kinetochore tension is the stabilizing cue and ask how chromosome size impacts that model. We live image PtK2 cells, with just 14 chromosomes, widely ranging in size, and find that long chromosomes align at the metaphase plate later than short chromosomes. Enriching for errors and imaging error correction live, we show that long chromosomes exhibit a specific delay in correcting attachments. Using chromokinesin overexpression and laser ablation to perturb polar ejection forces, we find that chromosome size and force on arms determine alignment order. Thus, we propose a model where increased force on long chromosomes can falsely stabilize incorrect attachments, delaying their biorientation. As such, long chromosomes may require compensatory mechanisms for correcting errors to avoid chromosomal instability.

Indexed as

Chromosome SegregationChromosomes, MammalianKinetochoresMitosisAnimalsCell LinePotoroidaeSpindle Apparatus

Identifiers

PMID38727808
PMCPMC11090132

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.