Evidence map›Paper›PMID 25884297›Full record

ArticleBMC cancer2015

Microsatellite instability and mutations in BRAF and KRAS are significant predictors of disseminated disease in colon cancer.

Helgi Birgisson, Karolina Edlund, Ulrik Wallin, Lars Påhlman, Hanna Göransson Kultima, Markus Mayrhofer, Patrick Micke, Anders Isaksson, Johan Botling, Bengt Glimelius and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

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  15. Effect ofJournal of gastrointestinal oncology · 2019
    Article
  16. Clinicopathological Significance ofJournal of Cancer · 2019
    Article
  17. Article
  18. Molecular subtypes in early colorectal cancer associated with clinical features and patient prognosis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2018
    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 at 2 institutions in 1 country.

Helgi BirgissonDepartment of Surgical Sciences, Colorectal Surgery, Uppsala University, 75185, Uppsala, Sweden. helgi.birgisson@surgsci.uu.se.
Karolina EdlundDepartment of Immunology, Genetics and Pathology, Uppsala University, 75185, Uppsala, Sweden. karolina.edlund@ifado.de.
Ulrik WallinDepartment of Surgical Sciences, Colorectal Surgery, Uppsala University, 75185, Uppsala, Sweden. ulrik-wallin@uiowa.edu.
Lars PåhlmanDepartment of Surgical Sciences, Colorectal Surgery, Uppsala University, 75185, Uppsala, Sweden. lars.pahlman@surgsci.uu.se.
Hanna Göransson KultimaScience for Life Laboratory, Department of Medical Sciences, Uppsala University, 75185, Uppsala, Sweden. Hanna.Goransson.Kultima@medsci.uu.se.
Markus MayrhoferScience for Life Laboratory, Department of Medical Sciences, Uppsala University, 75185, Uppsala, Sweden. markus.mayrhofer@medsci.uu.se.
Patrick MickeDepartment of Immunology, Genetics and Pathology, Uppsala University, 75185, Uppsala, Sweden. patrick.micke@igp.uu.se.
Anders IsakssonScience for Life Laboratory, Department of Medical Sciences, Uppsala University, 75185, Uppsala, Sweden. Anders.Isaksson@medsci.uu.se.
Johan BotlingDepartment of Immunology, Genetics and Pathology, Uppsala University, 75185, Uppsala, Sweden. johan.botling@akademiska.se.
Bengt GlimeliusDepartment of Radiology, Oncology and Radiation Science, Uppsala University, 75185, Uppsala, Sweden. bengt.glimelius@onkologi.uu.se.
Magnus SundströmDepartment of Immunology, Genetics and Pathology, Uppsala University, 75185, Uppsala, Sweden. magnus.sundstrom@igp.uu.se.
Uppsala University · SEScience for Life Laboratory · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMolecular alterations are well studied in colon cancer, however there is still need for an improved understanding of their prognostic impact. This study aims to characterize colon cancer with regard to KRAS, BRAF, and PIK3CA mutations, microsatellite instability (MSI), and average DNA copy number, in connection with tumour dissemination and recurrence in patients with colon cancer.

methodsDisease stage II-IV colon cancer patients (n = 121) were selected. KRAS, BRAF, and PIK3CA mutation status was assessed by pyrosequencing and MSI was determined by analysis of mononucleotide repeat markers. Genome-wide average DNA copy number and allelic imbalance was evaluated by SNP array analysis.

resultsPatients with mutated KRAS were more likely to experience disease dissemination (OR 2.75; 95% CI 1.28-6.04), whereas the opposite was observed for patients with BRAF mutation (OR 0.34; 95% 0.14-0.81) or MSI (OR 0.24; 95% 0.09-0.64). Also in the subset of patients with stage II-III disease, both MSI (OR 0.29; 95% 0.10-0.86) and BRAF mutation (OR 0.32; 95% 0.16-0.91) were related to lower risk of distant recurrence. However, average DNA copy number and PIK3CA mutations were not associated with disease dissemination.

conclusionsThe present study revealed that tumour dissemination is less likely to occur in colon cancer patients with MSI and BRAF mutation, whereas the presence of a KRAS mutation increases the likelihood of disseminated disease.

Indexed as

Microsatellite InstabilityAgedColonic NeoplasmsFemaleFollow-Up StudiesHumansMaleMutationPredictive Value of TestsProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)ras ProteinsBRAF protein, humanKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID25884297
PMCPMC4364587
OpenAlexW2104103649

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.