Evidence map›Paper›PMID 23660947›Full record

ArticleBritish journal of cancer2013

The prognostic role of KRAS, BRAF, PIK3CA and PTEN in colorectal cancer.

V Eklöf, M L Wikberg, S Edin, A M Dahlin, B-A Jonsson, Å Öberg, J Rutegård, R Palmqvist

Open access · hybridAbstract read
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. Cited by 92 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 6 pooled it
10.4field-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

92 citing papers in PubMed, 6 syntheses or guidelines pooled it, 162 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Molecular Biomarkers for the Evaluation of Colorectal Cancer.American journal of clinical pathology · 2017
    Guideline
  4. Prognostic role of tumor PIK3CA mutation in colorectal cancer: a systematic review and meta-analysis.Annals of oncology : official journal of the European Society for Medical Oncology · 2016
    Pooled it
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  19. Prognostic Value ofCancers · 2022
    Article
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32 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

8 authors at 1 institution in 1 country.

V EklöfDepartment of Medical Biosciences/Pathology, Umeå University, SE-901 85 Umeå, Sweden.
M L Wikberg
S Edin
A M Dahlin
B-A Jonsson
Å Öberg
J Rutegård
R Palmqvist
Umeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMutations in KRAS, BRAF, PIK3CA and PTEN expression have been in focus to predict the effect of epidermal growth factor receptor-blocking therapy in colorectal cancer (CRC). Here, information on these four aberrations was collected and combined to a Quadruple index and used to evaluate the prognostic role of these factors in CRC. PATIENTS: We analysed the mutation status in KRAS, BRAF and PIK3CA and PTEN expression in two separate CRC cohorts, Northern Sweden Health Disease Study (NSHDS; n=197) and Colorectal Cancer in Umeå Study (CRUMS; n=414). A Quadruple index was created, where Quadruple index positivity specifies cases with any aberration in KRAS, BRAF, PIK3CA or PTEN expression.

resultsQuadruple index positive tumours had a worse prognosis, significant in the NSHDS but not in the CRUMS cohort (NSHDS; P=0.003 and CRUMS; P=0.230) in univariate analyses but significance was lost in multivariate analyses. When analysing each gene separately, only BRAF was of prognostic significance in the NSHDS cohort (multivariate HR 2.00, 95% CI: 1.16-3.43) and KRAS was of prognostic significance in the CRUMS cohort (multivariate HR 1.48, 95% CI: 1.02-2.16). Aberrations in PIK3CA and PTEN did not add significant prognostic information.

conclusionsOur results suggest that establishment of molecular subgroups based on KRAS and BRAF mutation status is important and should be considered in future prognostic studies in CRC.

Indexed as

AdultAgedBiomarkers, TumorCarcinomaClass I Phosphatidylinositol 3-KinasesCohort StudiesColorectal NeoplasmsDNA Mutational AnalysisFemaleGenes, rasHumansMaleMiddle AgedPhosphatidylinositol 3-KinasesPrognosisProto-Oncogene Proteins B-rafBiomarkers, TumorBRAF protein, humanClass I Phosphatidylinositol 3-KinasesPhosphatidylinositol 3-KinasesPIK3CA protein, humanProto-Oncogene Proteins B-rafPTEN PhosphohydrolasePTEN protein, human

Identifiers

PMID23660947
PMCPMC3670497
OpenAlexW2058646321

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.