Evidence map›Paper›PMID 23425690›Full record

ArticleAging cell2013

Large chromosome deletions, duplications, and gene conversion events accumulate with age in normal human colon crypts.

John C F Hsieh, David Van Den Berg, Haeyoun Kang, Chih-Lin Hsieh, Michael R Lieber

Open access · greenAbstract read
In one paragraph

Article in Aging cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

28 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Balancing DNA repair to prevent ageing and cancer.Experimental cell research · 2021
    Review
  7. Review
  8. Review
  9. The Initial Stage of Tumorigenesis in Drosophila Epithelial Tissues.Advances in experimental medicine and biology · 2019
    Review
  10. Cellular and epigenetic drivers of stem cell ageing.Nature reviews. Molecular cell biology · 2018
    Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Clonal evolution of colorectal cancer in IBD.Nature reviews. Gastroenterology & hepatology · 2017
    Review
  17. Review
  18. Article
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

John C F HsiehUSC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, 1441 Eastlake Ave., MC9176, Los Angeles, CA 90089, USA.
David Van Den Berg
Haeyoun Kang
Chih-Lin Hsieh
Michael R Lieber
University of Southern California · US

Funding

MECHANISM AND REGULATION OF NONHOMOLOGOUS DNA ENDJOININGR01CA100504 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI LIEBER, MICHAEL R · 2003 to 2021
$5.0M
NCI NIH HHS R01 CA100504
6 · The paper itself

Abstract

Little is known about the types and numbers of mutations that may accumulate in normal human cells with age. Such information would require obtaining enough DNA from a single cell to accurately carry out reliable analysis despite extensive amplification; and complete genomic coverage under these circumstances is difficult. We have compared colon crypts, which are putatively clonal and contain ~2000 cells each, to determine how much somatic genetic variation occurs in vivo (without ex vivo cell culturing). Using high-density SNP microarrays, we find that chromosome deletions, duplications, and gene conversions were significantly more frequent in colons from the older individuals. These changes affected lengths ranging from 73 kb to 46 Mb. Although detection requires progeny of a single mutant stem cell to reach niche dominance over neighboring stem cells, none of the deletions appear likely to confer a selective advantage. Mutations can become fixed randomly during stem cell evolution through neutral drift in normal human crypts. The fact that chromosomal changes are detected in individual crypts with increasing age suggests that either such changes accumulate with age or single stem cell dominance increases with age, and the former is more likely. This progressive genome-wide divergence of human somatic cells with age has implications for aging and disease in multicellular organisms.

Indexed as

Chromosome DeletionChromosome DuplicationGene ConversionAdolescentAdultAgedAged, 80 and overAgingChromosomesColonDNA Copy Number VariationsDNA MethylationFemaleGenome, HumanHumansLoss of Heterozygosity

Identifiers

PMID23425690
PMCPMC5706647
OpenAlexW2075216292

What OpenQuestion holds

Textmetadata
LicenceTDM
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.