Evidence map›Paper›PMID 30404001›Full record

ArticleCell reports2018

Reliability of Whole-Exome Sequencing for Assessing Intratumor Genetic Heterogeneity.

Weiwei Shi, Charlotte K Y Ng, Raymond S Lim, Tingting Jiang, Sushant Kumar, Xiaotong Li, Vikram B Wali, Salvatore Piscuoglio, Mark B Gerstein, Anees B Chagpar and 4 more

Abstract read
In one paragraph

Article in Cell reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing 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

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

  1. Pooled it
  2. Analysis of Pre- and Posttreatment Tissues from the SWOG S0800 Trial Reveals an Effect of Neoadjuvant Chemotherapy on the Breast Cancer Genome.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020
    Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Heteroresistance inFrontiers in cellular and infection microbiology · 2026
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Heliyon · 2024
    Review
  20. Article

8 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

14 authors.

Weiwei ShiDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA.
Charlotte K Y NgDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Institute of Pathology, University Hospital Basel, Basel, Switzerland; Department of Biomedicine, University of Basel, Basel, Switzerland.
Raymond S LimDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Tingting JiangDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA.
Sushant KumarMolecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA.
Xiaotong LiDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA.
Vikram B WaliDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA.
Salvatore PiscuoglioDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Institute of Pathology, University Hospital Basel, Basel, Switzerland.
Mark B GersteinMolecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA; Computer Science, Yale University, New Haven, CT, USA.
Anees B ChagparDepartment of Surgery, Yale School of Medicine, Yale University, New Haven, CT, USA; Yale Cancer Center, New Haven, CT, USA.
Britta WeigeltDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Lajos PusztaiDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA; Yale Cancer Center, New Haven, CT, USA.
Jorge S Reis-FilhoDepartment of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA. Electronic address: reisfilj@mskcc.org.
Christos HatzisDepartment of Medicine, Yale School of Medicine, Yale University, New Haven, CT, USA; Yale Cancer Center, New Haven, CT, USA. Electronic address: christos.hatzis@yale.edu.

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

Multi-region sequencing is used to detect intratumor genetic heterogeneity (ITGH) in tumors. To assess whether genuine ITGH can be distinguished from sequencing artifacts, we performed whole-exome sequencing (WES) on three anatomically distinct regions of the same tumor with technical replicates to estimate technical noise. Somatic variants were detected with three different WES pipelines and subsequently validated by high-depth amplicon sequencing. The cancer-only pipeline was unreliable, with about 69% of the identified somatic variants being false positive. Even with matched normal DNA for which 82% of the somatic variants were detected reliably, only 36%-78% were found consistently in technical replicate pairs. Overall, 34%-80% of the discordant somatic variants, which could be interpreted as ITGH, were found to constitute technical noise. Excluding mutations affecting low-mappability regions or occurring in certain mutational contexts was found to reduce artifacts, yet detection of subclonal mutations by WES in the absence of orthogonal validation remains unreliable.

Indexed as

Exome SequencingGenetic HeterogeneityFemaleHumansINDEL MutationMutationNeoplasmsPloidiesPolymorphism, Single NucleotideReproducibility of Resultsbreast cancerintratumor genetic heterogeneitymappabilitymassively parallel sequencingmulti-region profilingmutational signaturessomatic mutationssubclonalwhole-exome sequencing

Identifiers

PMID30404001
PMCPMC6261536

What OpenQuestion holds

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LicenceCC BY
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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.