Evidence map›Paper›PMID 34352223›Full record

ArticleDevelopmental cell2021

Gene copy-number changes and chromosomal instability induced by aneuploidy confer resistance to chemotherapy.

Marica Rosaria Ippolito, Valentino Martis, Sara Martin, Andréa E Tijhuis, Christy Hong, René Wardenaar, Marie Dumont, Johanna Zerbib, Diana C J Spierings, Daniele Fachinetti and 3 more

Abstract read
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In one paragraph

Article in Developmental cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 138 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed, 1 pooled it
–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

138 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Pretreatment Chromosomal Instability Correlates With Radiation Sensitivity in Squamous Cell Cancers.International journal of radiation oncology, biology, physics · 2026
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  15. PARP1 Suppression Drives ROS Resistance in Aneuploid Cancer Cells.bioRxiv : the preprint server for biology · 2026
    Article
  16. Article
  17. Article
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  20. Review

78 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Marica Rosaria IppolitoDepartment of Experimental Oncology at IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy.
Valentino MartisDepartment of Experimental Oncology at IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy.
Sara MartinDepartment of Experimental Oncology at IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy.
Andréa E TijhuisEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, 9713 AV, Groningen, the Netherlands.
Christy HongEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, 9713 AV, Groningen, the Netherlands.
René WardenaarEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, 9713 AV, Groningen, the Netherlands.
Marie DumontInstitut Curie, PSL Research University, CNRS, UMR144, Paris, France.
Johanna ZerbibDepartment of Human Molecular Genetics and Biochemistry, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Diana C J SpieringsEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, 9713 AV, Groningen, the Netherlands.
Daniele FachinettiInstitut Curie, PSL Research University, CNRS, UMR144, Paris, France.
Uri Ben-DavidDepartment of Human Molecular Genetics and Biochemistry, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Floris FoijerEuropean Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, 9713 AV, Groningen, the Netherlands.
Stefano SantaguidaDepartment of Experimental Oncology at IEO, European Institute of Oncology IRCCS, Via Adamello 16, 20139 Milan, Italy; Department of Oncology and Hemato-Oncology, University of Milan, Via Santa Sofia 9/1, 20122 Milan, Italy. Electronic address: stefano.santaguida@ieo.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitotic errors lead to aneuploidy, a condition of karyotype imbalance, frequently found in cancer cells. Alterations in chromosome copy number induce a wide variety of cellular stresses, including genome instability. Here, we show that cancer cells might exploit aneuploidy-induced genome instability and the resulting gene copy-number changes to survive under conditions of selective pressure, such as chemotherapy. Resistance to chemotherapeutic drugs was dictated by the acquisition of recurrent karyotypes, indicating that gene dosage might play a role in driving chemoresistance. Thus, our study establishes a causal link between aneuploidy-driven changes in gene copy number and chemoresistance and might explain why some chemotherapies fail to succeed.

Indexed as

AneuploidyDrug TherapyChromosomal InstabilityDrug ResistanceGene DosageGenomic InstabilityHumansKaryotypeaneuploidycancerchemotherapydrug resistancegenome instability

Identifiers

What OpenQuestion holds

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Registered trials

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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.