Evidence map›Paper›PMID 34993501›Full record

ArticleCell genomics2021

PCR amplicons identify widespread copy number variation in human centromeric arrays and instability in cancer.

Leonardo Gomes de Lima, Edmund Howe, Vijay Pratap Singh, Tamara Potapova, Hua Li, Baoshan Xu, Jemma Castle, Steve Crozier, Christine J Harrison, Steve C Clifford and 3 more

Open access · goldAbstract read
In one paragraph

Article in Cell genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
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  6. The dynamic centromere.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025
    Review
  7. Article
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  13. Defining a core configuration for human centromeres during mitosis.bioRxiv : the preprint server for biology · 2023
    Article
  14. Article
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  17. Review
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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

13 authors at 4 institutions in 3 countries.

Leonardo Gomes de LimaThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Edmund HoweThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Vijay Pratap SinghThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Tamara PotapovaThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Hua LiThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Baoshan XuHospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, Guangzhou, Guangdong Province, China.
Jemma CastleNewcastle University Centre for Cancer, Newcastle upon Tyne, UK.
Steve CrozierNewcastle University Centre for Cancer, Newcastle upon Tyne, UK.
Christine J HarrisonNewcastle University Centre for Cancer, Newcastle upon Tyne, UK.
Steve C CliffordNewcastle University Centre for Cancer, Newcastle upon Tyne, UK.
Karen H MigaUC Santa Cruz Genomics Institute, University of California, Santa Cruz, Santa Cruz, CA, USA.
Sarra L RyanNewcastle University Centre for Cancer, Newcastle upon Tyne, UK.
Jennifer L GertonThe Stowers Institute for Medical Research, Kansas City, MO, USA.
Stowers Institute for Medical Research · USNewcastle University · GBSun Yat-sen University · CNUniversity of California, Santa Cruz · US

Funding

Telomere-to-telomere assemblies of human genomesR01HG011274 · NHGRI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI Karen Hayden Miga · 2020 to 2026
$4.5M
Cancer Research UK 13457Cancer Research UK 27193NHGRI NIH HHS R01 HG011274
6 · The paper itself

Abstract

Centromeric α-satellite repeats represent ~6% of the human genome, but their length and repetitive nature make sequencing and analysis of those regions challenging. However, centromeres are essential for the stable propagation of chromosomes, so tools are urgently needed to monitor centromere copy number and how it influences chromosome transmission and genome stability. We developed and benchmarked droplet digital PCR (ddPCR) assays that measure copy number for five human centromeric arrays. We applied them to characterize natural variation in centromeric array size, analyzing normal tissue from 37 individuals from China and 39 individuals from the US and UK. Each chromosome-specific array varies in size up to 10-fold across individuals and up to 50-fold across chromosomes, indicating a unique complement of arrays in each individual. We also used the ddPCR assays to analyze centromere copy number in 76 matched tumor-normal samples across four cancer types, representing the most-comprehensive quantitative analysis of centromeric array stability in cancer to date. In contrast to stable transmission in cultured cells, centromeric arrays show gain and loss events in each of the cancer types, suggesting centromeric α-satellite DNA represents a new category of genome instability in cancer. Our methodology for measuring human centromeric-array copy number will advance research on centromeres and genome integrity in normal and disease states.

Identifiers

PMID34993501
PMCPMC8730464
OpenAlexW4200233995

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.