Evidence map›Paper›PMID 33432015›Full record

ArticleScientific reports2021

Metagenomic analysis of formalin-fixed paraffin-embedded tumor and normal mucosa reveals differences in the microbiome of colorectal cancer patients.

Gabriela Debesa-Tur, Vicente Pérez-Brocal, Susana Ruiz-Ruiz, Adela Castillejo, Amparo Latorre, José Luis Soto, Andrés Moya

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Microbiology spectrum · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Colorectal Cancer Archaeome: A Metagenomic Exploration, Tunisia.Current issues in molecular biology · 2023
    Article
  10. Article
  11. Article
  12. Nanotechnology for colorectal cancer detection and treatment.World journal of gastroenterology · 2022
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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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 at 3 institutions in 1 country.

Gabriela Debesa-TurFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO), Área de Genómica y Salud, Valencia, Spain.
Vicente Pérez-BrocalFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO), Área de Genómica y Salud, Valencia, Spain.
Susana Ruiz-RuizFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO), Área de Genómica y Salud, Valencia, Spain.
Adela CastillejoUnidad de Genética Molecular, Hospital General Universitario de Elche, Alicante, Spain.
Amparo LatorreFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO), Área de Genómica y Salud, Valencia, Spain.
José Luis SotoUnidad de Genética Molecular, Hospital General Universitario de Elche, Alicante, Spain.
Andrés MoyaFundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana (FISABIO), Área de Genómica y Salud, Valencia, Spain. andres.moya@uv.es.
Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana · ESHospital General Universitario de Elche · ESCentro de Investigación Biomédica en Red de Epidemiología y Salud Pública · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An increased risk of developing colorectal cancer (CRC) and other types of tumor is associated to Lynch syndrome (LS), an inherited condition caused by germline mutations in mismatch repair genes. We selected a cohort of LS patients that had developed CRC and had undergone surgical resection. Formalin-fixed paraffin embedded (FFPE) tissue blocks from matched colorectal and normal mucosa were used for genomic DNA extraction with a commercial kit and sequenced by high-throughput sequencing. A metagenomic approach enabled the taxonomic and functional identification of the microbial community and associated genes detected in the specimens. Slightly lower taxonomic diversity was observed in the tumor compared to the non-tumor tissue. Furthermore, the most remarkable differences between tumors and healthy tissue was the significant increase in the genus Fusobacterium in the former, in particular the species F. nucleatum, as well as Camplylobacter or Bacteroides fragilis, in accordance with previous studies of CRC. However, unlike prior studies, the present work is not based on directed detection by qPCR but instead uses a metagenomic approach to retrieve the whole bacterial community, and addresses the additional difficulty of using long-term stored FFPE samples.

Indexed as

AdultAgedAged, 80 and overCase-Control StudiesCohort StudiesColorectal NeoplasmsFemaleFormaldehydeGastrointestinal MicrobiomeHumansIntestinal MucosaMaleMetagenomeMetagenomicsMiddle AgedParaffin EmbeddingFormaldehyde

Identifiers

PMID33432015
PMCPMC7801721
OpenAlexW3121123975

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.