Evidence map›Paper›PMID 36068219›Full record

ArticleNature communications2022

The mutational signatures of formalin fixation on the human genome.

Qingli Guo, Eszter Lakatos, Ibrahim Al Bakir, Kit Curtius, Trevor A Graham, Ville Mustonen

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
9.6field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 100 citations in OpenAlex.

  1. Trial
  2. Trial
  3. FFPE-CUTAC: A Single Assay, Multiple Layers.bioRxiv : the preprint server for biology · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
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  14. The Molecular Landscape of CASTLE: A Rare Thymus-like Head and Neck Cancer.International journal of molecular sciences · 2026
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Microbiome-Genome Crosstalk in Colorectal Cancer: Colibactin Signatures andInternational journal of molecular sciences · 2026
    Review

21 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

6 authors at 2 institutions in 3 countries.

Qingli GuoOrganismal and Evolutionary Biology Research Programme, Department of Computer Science, University of Helsinki, Helsinki, Finland.ORCID http://orcid.org/0000-0001-8467-8828
Eszter LakatosEvolution and Cancer Laboratory, Centre for Genomics and Computational Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Ibrahim Al BakirEvolution and Cancer Laboratory, Centre for Genomics and Computational Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.ORCID http://orcid.org/0000-0001-8775-3459
Kit CurtiusEvolution and Cancer Laboratory, Centre for Genomics and Computational Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Trevor A GrahamEvolution and Cancer Laboratory, Centre for Genomics and Computational Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK. trevor.graham@icr.ac.uk.ORCID http://orcid.org/0000-0001-9582-1597
Ville MustonenOrganismal and Evolutionary Biology Research Programme, Department of Computer Science, University of Helsinki, Helsinki, Finland. v.mustonen@helsinki.fi.ORCID http://orcid.org/0000-0002-7270-1792
Queen Mary University of London · GBUniversity of Helsinki · FI

Funding

Cancer Research UK 19771Cancer Research UK A16581Cancer Research UK A19771
6 · The paper itself

Abstract

Clinical archives of patient material near-exclusively consist of formalin-fixed and paraffin-embedded (FFPE) blocks. The ability to precisely characterise mutational signatures from FFPE-derived DNA has tremendous translational potential. However, sequencing of DNA derived from FFPE material is known to be riddled with artefacts. Here we derive genome-wide mutational signatures caused by formalin fixation. We show that the FFPE-signature is highly similar to signature 30 (the signature of Base Excision Repair deficiency due to NTHL1 mutations), and chemical repair of DNA lesions leads to a signature highly similar to signature 1 (clock-like signature due to spontaneous deamination of methylcytosine). We demonstrate that using uncorrected mutational catalogues of FFPE samples leads to major mis-assignment of signature activities. To correct for this, we introduce FFPEsig, a computational algorithm to rectify the formalin-induced artefacts in the mutational catalogue. We demonstrate that FFPEsig enables accurate mutational signature analysis both in simulated and whole-genome sequenced FFPE cancer samples. FFPEsig thus provides an opportunity to unlock additional clinical potential of archival patient tissues.

Indexed as

FormaldehydeGenome, HumanHumansMutationParaffin EmbeddingTissue FixationFormaldehyde

Identifiers

PMID36068219
PMCPMC9448750
OpenAlexW4294739826

What OpenQuestion holds

Textmetadata
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.