Evidence map›Paper›PMID 23511561›Full record

ArticleBritish journal of cancer2013

KRAS and BRAF mutations are rare and related to DNA mismatch repair deficiency in gastric cancer from the East and the West: results from a large international multicentre study.

N C T van Grieken, T Aoyama, T Aoyma, P A Chambers, D Bottomley, L C Ward, I Inam, T E Buffart, K Das, T Lim and 13 more

Erratum issuedOpen access · hybridAbstract readMulticenter Study
In one paragraph

Article in British journal of cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
7.8field-weighted citation impact, top 2% 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

56 citing papers in PubMed, 2 syntheses or guidelines pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Potent therapeutic strategy in gastric cancer with microsatellite instability-high and/or deficient mismatch repair.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024
    Review
  7. Review
  8. Review
  9. Updated Immunotherapy for Gastric Cancer.Journal of clinical medicine · 2023
    Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. A standardized pathology report for gastric cancer: 2nd edition.Journal of pathology and translational medicine · 2023
    Review
  15. Signaling pathways and therapeutic interventions in gastric cancer.Signal transduction and targeted therapy · 2022
    Review
  16. Review
  17. Article
  18. Article
  19. Insulin and the insulin receptor collaborate to promote human gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2022
    Article
  20. The dawn of precision medicine in diffuse-type gastric cancer.Therapeutic advances in medical oncology · 2022
    Review
4 · The record

Corrections and comments

  • Erratum issued
    Aoyma, T [corrected to Aoyama, T]
5 · Who and what money

Authors and funding

23 authors at 11 institutions in 4 countries.

N C T van GriekenDepartment of Pathology, VU University Medical Center, Po Box 7057, 1007 MB Amsterdam, The Netherlands.
T Aoyama
T Aoyma
P A Chambers
D Bottomley
L C Ward
I Inam
T E Buffart
K Das
T Lim
B Pang
S L Zhang
I B Tan
B Carvalho
D A M Heideman
Y Miyagi
Y Kameda
T Arai
G A Meijer
A Tsuburaya
P Tan
T Yoshikawa
H I Grabsch
Amsterdam UMC Location VUmc · NLKanagawa Prefectural Hospital Organization · JPSt James's University Hospital · GBDuke-NUS Medical School · SGKanagawa Cancer CenterNational Cancer Centre Singapore · SGGenomics (United Kingdom) · GBNational University Cancer Institute, Singapore · SGNational University Hospital · SGTokyo Metropolitan Geriatric Hospital · JPUniversity of Leeds · GB

Funding

Cancer Research UK C37059/A11941
6 · The paper itself

Abstract

backgroundInhibitors of the epidermal growth factor (EGFR) signaling pathway have a major role in the treatment of KRAS wild-type colorectal cancer patients. The EGFR pathway has been shown to be activated in gastric cancer (GC). However, published data on KRAS and BRAF mutation status is limited in GC and has not been compared between GC from different geographic regions.

methodsThe prevalence of KRAS and BRAF mutations was established in 712 GC: 278 GC from the United Kingdom, 230 GC from Japan and 204 GC from Singapore. The relationship between KRAS/BRAF mutation status, DNA mismatch repair (MMR) status, clinicopathological variables and overall survival was analysed.

resultsOverall, 30 (4.2%) GC carried a KRAS mutation. In total, 5.8% of the UK GC, 4% of Japan GC and 1.5% of Singapore GC were KRAS mutant. KRAS mutant GC had fewer lymph node metastases in the UK cohort (P=0.005) and were more frequent in elderly patients in the Japan cohort (P=0.034). KRAS mutations were more frequent in MMR-deficient GC in the UK and the Japanese cohort (P<0.05). A BRAF mutation was only detected in a single Japanese GC.

conclusionsThis large multicentre study demonstrated that KRAS mutations and DNA MMR deficiency have a role in a small subgroup of GC irrespective of country of origin, suggesting that this subgroup of GC may have developed along a common pathway. Further studies need to establish whether concomitant mutations or amplifications of other EGFR signalling pathway genes may contribute to the activation of this pathway in GC.

Indexed as

DNA Mismatch RepairDNA Repair-Deficiency DisordersMutationAgedCohort StudiesErbB ReceptorsFemaleGenes, rasHumansImmunohistochemistryMaleMiddle AgedProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)ras ProteinsBRAF protein, humanErbB ReceptorsKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID23511561
PMCPMC3629423
OpenAlexW1972297202

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.