Evidence map›Paper›PMID 29985941›Full record

ArticlePLoS genetics2018

No unexpected CRISPR-Cas9 off-target activity revealed by trio sequencing of gene-edited mice.

Vivek Iyer, Katharina Boroviak, Mark Thomas, Brendan Doe, Laura Riva, Edward Ryder, David J Adams

Abstract read
In one paragraph

Article in PLoS genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
–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

74 citing papers in PubMed.

  1. Trial
  2. Review
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  9. Clinical perspective: Advancing hemophilia treatment through gene therapy approaches.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Emerging Gene Therapeutics for Epidermolysis Bullosa under Development.International journal of molecular sciences · 2024
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

14 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

7 authors.

Vivek IyerWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.ORCID 0000-0002-7536-0954
Katharina BoroviakWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.
Mark ThomasWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.
Brendan DoeWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.
Laura RivaWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.
Edward RyderWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.ORCID 0000-0002-1799-9899
David J AdamsWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.ORCID 0000-0001-9490-0306

Funding

Wellcome Trust
6 · The paper itself

Abstract

CRISPR-Cas9 technologies have transformed genome-editing of experimental organisms and have immense therapeutic potential. Despite significant advances in our understanding of the CRISPR-Cas9 system, concerns remain over the potential for off-target effects. Recent studies have addressed these concerns using whole-genome sequencing (WGS) of gene-edited embryos or animals to search for de novo mutations (DNMs), which may represent candidate changes introduced by poor editing fidelity. Critically, these studies used strain-matched, but not pedigree-matched controls and thus were unable to reliably distinguish generational or colony-related differences from true DNMs. Here we used a trio design and whole genome sequenced 8 parents and 19 embryos, where 10 of the embryos were mutagenised with well-characterised gRNAs targeting the coat colour Tyrosinase (Tyr) locus. Detailed analyses of these whole genome data allowed us to conclude that if CRISPR mutagenesis were causing SNV or indel off-target mutations in treated embryos, then the number of these mutations is not statistically distinguishable from the background rate of DNMs occurring due to other processes.

Indexed as

AnimalsBiological Variation, PopulationCRISPR-Cas SystemsDNA Mutational AnalysisFemaleGene EditingGenomeHair ColorMaleMiceMice, Inbred C57BLMice, TransgenicMonophenol MonooxygenaseMutagenesisPedigreeResearch DesignMonophenol MonooxygenaseRNA, Guide, CRISPR-Cas Systems

Identifiers

PMID29985941
PMCPMC6057650

What OpenQuestion holds

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LicenceCC BY
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.