Evidence map›Paper›PMID 23880961›Full record

SynthesisFamilial cancer2014

Endometrial tumour BRAF mutations and MLH1 promoter methylation as predictors of germline mismatch repair gene mutation status: a literature review.

Alexander M Metcalf, Amanda B Spurdle

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Familial cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Therapeutic targeting of mismatch repair-deficient cancers.Nature reviews. Clinical oncology · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. [Analysis of microsatellite instability in endometrial cancer: The significance of minimal microsatellite shift].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2023
    Article
  13. Development and evaluation of INTFrontiers in oncology · 2023
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. High homogeneity of mismatch repair deficiency in advanced prostate cancer.Virchows Archiv : an international journal of pathology · 2020
    Article
  20. The Manchester International Consensus Group recommendations for the management of gynecological cancers in Lynch syndrome.Genetics in medicine : official journal of the American College of Medical Genetics · 2019
    Article
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

2 authors at 1 institution in 1 country.

Alexander M MetcalfDepartment of Genetics and Computational Biology, Queensland Institute of Medical Research, Herston, QLD, 4006, Australia.
Amanda B Spurdle
QIMR Berghofer Medical Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal cancer (CRC) that displays high microsatellite instability (MSI-H) can be caused by either germline mutations in mismatch repair (MMR) genes, or non-inherited transcriptional silencing of the MLH1 promoter. A correlation between MLH1 promoter methylation, specifically the 'C' region, and BRAF V600E status has been reported in CRC studies. Germline MMR mutations also greatly increase risk of endometrial cancer (EC), but no systematic review has been undertaken to determine if these tumour markers may be useful predictors of MMR mutation status in EC patients. Endometrial cancer cohorts meeting review inclusion criteria encompassed 2675 tumours from 20 studies for BRAF V600E, and 447 tumours from 11 studies for MLH1 methylation testing. BRAF V600E mutations were reported in 4/2675 (0.1%) endometrial tumours of unknown MMR mutation status, and there were 7/823 (0.9%) total sequence variants in exon 11 and 27/1012 (2.7%) in exon 15. Promoter MLH1 methylation was not observed in tumours from 32 MLH1 mutation carriers, or for 13 MSH2 or MSH6 mutation carriers. MMR mutation-negative individuals with tumour MLH1 and PMS2 IHC loss displayed MLH1 methylation in 48/51 (94%) of tumours. We have also detailed specific examples that show the importance of MLH1 promoter region, assay design, and quantification of methylation. This review shows that BRAF mutations occurs so infrequently in endometrial tumours they can be discounted as a useful marker for predicting MMR-negative mutation status, and further studies of endometrial cohorts with known MMR mutation status are necessary to quantify the utility of tumour MLH1 promoter methylation as a marker of negative germline MMR mutation status in EC patients.

Indexed as

DNA Mismatch RepairPromoter Regions, GeneticAdaptor Proteins, Signal TransducingDNA MethylationEndometrial NeoplasmsFemaleGerm-Line MutationHumansMutationMutL Protein Homolog 1Nuclear ProteinsProto-Oncogene Proteins B-rafAdaptor Proteins, Signal TransducingBRAF protein, humanMLH1 protein, humanMutL Protein Homolog 1Nuclear ProteinsProto-Oncogene Proteins B-raf

Identifiers

PMID23880961
OpenAlexW1963877113

What OpenQuestion holds

Textmetadata
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.