Evidence map›Paper›PMID 26943031›Full record

ArticleOncotarget2016

Evidence of intermetastatic heterogeneity for pathological response and genetic mutations within colorectal liver metastases following preoperative chemotherapy.

Mylène Sebagh, Marc-Antoine Allard, Nelly Bosselut, Myriam Dao, Eric Vibert, Maïté Lewin, Antoinette Lemoine, Daniel Cherqui, René Adam, Antonio Sa Cunha

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

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  11. Lymph Node Metastases in Colon Cancer Are Polyclonal.Clinical cancer research : an official journal of the American Association for Cancer Research · 2018
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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

10 authors at 3 institutions in 1 country.

Mylène SebaghAP-HP Hôpital Paul Brousse, Department of Pathology, Villejuif, France.
Marc-Antoine AllardAP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.
Nelly BosselutInserm U1193, Paris-Sud University, Villejuif, France.
Myriam DaoAP-HP Hôpital Paul Brousse, Department of Pathology, Villejuif, France.
Eric VibertInserm U1193, Paris-Sud University, Villejuif, France.
Maïté LewinAP-HP Hôpital Paul Brousse, Radiology, Villejuif, France.
Antoinette LemoineInserm U1193, Paris-Sud University, Villejuif, France.
Daniel CherquiInserm U1193, Paris-Sud University, Villejuif, France.
René AdamAP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.
Antonio Sa CunhaAP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.
Assistance Publique – Hôpitaux de Paris · FRHôpital Paul-Brousse · FRUniversité Paris-Sud · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn patients receiving preoperative chemotherapy, colorectal liver metastases (CLM) are expected to demonstrate a similar behaviour because of similar organ microenvironment and tumour cell chemosensitivity. We focused on the occurrence of pathological and genetic heterogeneity within CLM.

methodsPatients resected for multiple CLM between 2004 and 2011 after > three cycles of chemotherapy were included. Pathological heterogeneity was arbitrarily defined as a > 50% difference in the percentage of remaining tumour cells between individual CLM. In patients with pathological heterogeneity, the mutational genotyping (KRAS, NRAS, BRAF and PIK3CA) was determined from the most heterogeneous CLM.

resultsPathological heterogeneity was observed in 31 of 157 patients with multiple CLM (median = 4, range, 2-32) (19.7%). In 72.4% of them, we found a concordance of the mutation status between the paired CLM: both wild-type in 55%, and both mutated in 17.2%. We observed a discordance of the mutation status of 27.6% between CLM: one mutated and the other wild-type. The mutated CLM was the less florid one in 75% of patients with genetic heterogeneity.

conclusionsPathological heterogeneity is present in 19.7% of patients with multiple CLM. Genetic heterogeneity is present in 27.6% of patients with pathological heterogeneity. Heterogeneity could refine guide management for tissue sampling.

Indexed as

MutationAgedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorClass I Phosphatidylinositol 3-KinasesColorectal NeoplasmsFemaleGenetic HeterogeneityGTP PhosphohydrolasesHumansLiver NeoplasmsMaleMembrane ProteinsMiddle AgedMultivariate AnalysisPreoperative PeriodBiomarkers, TumorBRAF protein, humanClass I Phosphatidylinositol 3-KinasesGTP PhosphohydrolasesKRAS protein, humanMembrane ProteinsNRAS protein, humanPIK3CA protein, humanProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)colorectal liver metastasesintermetastatic tumor heterogeneitypathological responsesomatic gene profile

Identifiers

PMID26943031
PMCPMC5008308
OpenAlexW2343000091

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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.