Evidence map›Paper›PMID 21909401›Full record

ArticlePloS one2011

High fragmentation characterizes tumour-derived circulating DNA.

Florent Mouliere, Bruno Robert, Erika Arnau Peyrotte, Maguy Del Rio, Marc Ychou, Franck Molina, Celine Gongora, Alain R Thierry

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 293 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
293citing 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

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

  1. Pooled it
  2. Circulating Tumor DNA as a Biomarker for Melanoma Prognosis and Therapy.American journal of clinical dermatology · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Epigenetic Instability-Based Metrics in Cell-Free DNA for Early Cancer Detection.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Minimizing and quantifying uncertainty in AI-informed decisions: Applications in medicine.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Review

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

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

8 authors.

Florent MouliereSysDiag UMR3145-CNRS, National Centre of the Scientific Research/BIO-RAD, Montpellier, France.
Bruno Robert
Erika Arnau Peyrotte
Maguy Del Rio
Marc Ychou
Franck Molina
Celine Gongora
Alain R Thierry

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCirculating DNA (ctDNA) is acknowledged as a potential diagnostic tool for various cancers including colorectal cancer, especially when considering the detection of mutations. Certainly due to lack of normalization of the experimental conditions, previous reports present many discrepancies and contradictory data on the analysis of the concentration of total ctDNA and on the proportion of tumour-derived ctDNA fragments. METHODOLOGY: In order to rigorously analyse ctDNA, we thoroughly investigated ctDNA size distribution. We used a highly specific Q-PCR assay and athymic nude mice xenografted with SW620 or HT29 human colon cancer cells, and we correlated our results by examining plasma from metastatic CRC patients. CONCLUSION/SIGNIFICANCE: Fragmentation and concentration of tumour-derived ctDNA is positively correlated with tumour weight. CtDNA quantification by Q-PCR depends on the amplified target length and is optimal for 60-100 bp fragments. Q-PCR analysis of plasma samples from xenografted mice and cancer patients showed that tumour-derived ctDNA exhibits a specific amount profile based on ctDNA size and significant higher ctDNA fragmentation. Metastatic colorectal patients (n = 12) showed nearly 5-fold higher mean ctDNA fragmentation than healthy individuals (n = 16).

Indexed as

DNA FragmentationAnimalsCell Line, TumorColorectal NeoplasmsDNA, NeoplasmFemaleHealthHumansMiceMice, NudePolymerase Chain ReactionTumor BurdenXenograft Model Antitumor AssaysDNA, Neoplasm

Identifiers

PMID21909401
PMCPMC3167805

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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.