Evidence map›Paper›PMID 33635431›Full record

ArticleJournal of cancer research and clinical oncology2021

Clinicopathological impacts of DNA methylation alterations on pancreatic ductal adenocarcinoma: prediction of early recurrence based on genome-wide DNA methylation profiling.

Yutaka Endo, Mao Fujimoto, Nanako Ito, Yoriko Takahashi, Minoru Kitago, Masahiro Gotoh, Nobuyoshi Hiraoka, Teruhiko Yoshida, Yuko Kitagawa, Yae Kanai and 1 more

Abstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. International journal of molecular sciences · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. DNA Methylation Profiling Enables Accurate Classification of Nonductal Primary Pancreatic Neoplasms.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. 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

11 authors.

Yutaka EndoDepartment of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Mao FujimotoDepartment of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Nanako ItoDepartment of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Yoriko TakahashiBioscience Department, Solution Knowledge Center, Mitsui Knowledge Industry Co., Ltd., Tokyo, 105-6215, Japan.
Minoru KitagoDepartment of Surgery, Keio University School of Medicine, Tokyo, 160-8582, Japan.
Masahiro GotohFundamental Innovative Oncology Core Center, National Cancer Center Research Institute, Tokyo, 104-0045, Japan.
Nobuyoshi HiraokaDepartment of Pathology and Clinical Laboratory, National Cancer Center Hospital, Tokyo, 104-0045, Japan.
Teruhiko YoshidaFundamental Innovative Oncology Core Center, National Cancer Center Research Institute, Tokyo, 104-0045, Japan.
Yuko KitagawaDepartment of Surgery, Keio University School of Medicine, Tokyo, 160-8582, Japan.
Yae KanaiDepartment of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Eri AraiDepartment of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. earai@keio.jp.ORCID http://orcid.org/0000-0002-0076-4823

Funding

Japan Agency for Medical Research and Development 19ak0101043h0105Japan Society for the Promotion of Science 16H02472Japan Society for the Promotion of Science 16K08720
6 · The paper itself

Abstract

purposeThe present study was conducted to clarify the clinicopathological impacts of DNA methylation alterations on pancreatic ductal adenocarcinoma (PDAC).

methodsGenome-wide DNA methylation screening was performed using the Infinium HumanMethylation450 BeadChip, and DNA methylation quantification was verified using pyrosequencing. We analyzed fresh-frozen tissues from an initial cohort (17 samples of normal control pancreatic tissue [C] from 17 patients without PDAC, and 34 samples of non-cancerous pancreatic tissue [N] and 82 samples of cancerous tissue [T] both obtained from 82 PDAC patients) and formalin-fixed paraffin-embedded T samples from 34 patients in a validation cohort.

resultsThe DNA methylation profiles of N samples tended to differ from those of C samples, and 91,907 probes showed significant differences in DNA methylation levels between C and T samples. Epigenetic clustering of T samples was significantly correlated with a larger tumor diameter and early recurrence (ER), defined as relapse within 6 months after surgery. Three marker CpG sites, applicable to formalin-fixed paraffin-embedded surgically resected materials regardless of their tumor cell content, were identified for prediction of ER. The sensitivity and specificity for detection of patients belonging to the ER group using a panel combining these three marker CpG sites, including a CpG site in the CDK14 gene, were 81.8% and 71.7% and 88.9% and 70.4% in the initial and validation cohorts, respectively.

conclusionThese findings indicate that DNA methylation alterations may have a clinicopathological impact on PDAC. Application of our criteria will ultimately allow prediction of ER after surgery to improve the outcome of PDAC patients.

Indexed as

Biomarkers, TumorCarcinoma, Pancreatic DuctalCohort StudiesCpG IslandsCyclin-Dependent KinasesDNA MethylationEpigenesis, GeneticFemaleGenome-Wide Association StudyHumansMaleNeoplasm Recurrence, LocalPancreatic NeoplasmsParaffin EmbeddingTissue FixationBiomarkers, TumorCyclin-Dependent KinasesDNA methylationDuctal adenocarcinomaEarly recurrenceInfinium assayPancreas

Identifiers

PMID33635431
PMCPMC8021514

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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.