Evidence map›Paper›PMID 26215852›Full record

ArticleDiagnostic pathology2015

Improved diagnostics targeting c-MET in non-small cell lung cancer: expression, amplification and activation?

I Watermann, B Schmitt, F Stellmacher, J Müller, R Gaber, Ch Kugler, N Reinmuth, R M Huber, M Thomas, P Zabel and 6 more

Open access · goldAbstract read
In one paragraph

Article in Diagnostic pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 79 citations in OpenAlex.

  1. Trial
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  10. Article
  11. Targeting MET in NSCLC: An Ever-Expanding Territory.JTO clinical and research reports · 2024
    Review
  12. Article
  13. Targeting MET in Non-Small Cell Lung Cancer (NSCLC): A New Old Story?International journal of molecular sciences · 2023
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Canadian Consensus Recommendations on the Management ofCurrent oncology (Toronto, Ont.) · 2021
    Article
  20. 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

16 authors at 4 institutions in 2 countries.

I WatermannClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany. i.watermann@lungenclinic.de.
B SchmittClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
F StellmacherClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
J MüllerClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
R GaberClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
Ch KuglerLungenClinic Grosshansdorf, Grosshansdorf, Germany.
N ReinmuthLungenClinic Grosshansdorf, Grosshansdorf, Germany.
R M HuberLudwig Maximilians University (LMU), Munich, Germany.
M ThomasInstitute of Pathology, Heidelberg University, Heidelberg, Germany.
P ZabelMedical Clinic, Research Center Borstel, Borstel, Germany.
K F RabeLungenClinic Grosshansdorf, Grosshansdorf, Germany.
D JonigkInstitute of Pathology, Hannover Medical School, Hanover, Germany.
A WarthInstitute of Pathology, Heidelberg University, Heidelberg, Germany.
E VollmerClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
M ReckAirway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Borstel, Germany.
T GoldmannClinical and Experimental Pathology, Research Center Borstel, Borstel, Germany.
German Center for Lung Research · DEResearch Center Borstel - Leibniz Lung Center · DEAlexandria University · EGLudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral c-MET targeting inhibitory molecules have already shown promising results in the treatment of patients with Non-small Cell Lung Cancer (NSCLC). Combination of EGFR- and c-MET-specific molecules may overcome EGFR tyrosine kinase inhibitor (TKI) resistance. The aim of this study was to allow for the identification of patients who might benefit from TKI treatments targeting MET and to narrow in on the diagnostic assessment of MET.

methods222 tumor tissues of patients with NSCLC were analyzed concerning c-MET expression and activation in terms of phosphorylation (Y1234/1235 and Y1349) using a microarray format employing immunohistochemistry (IHC). Furthermore, protein expression and MET activation was correlated with the amplification status by Fluorescence in Situ Hybridization (FISH).

resultsCorrelation was observed between phosphorylation of c-MET at Y1234/1235 and Y1349 (spearman correlation coefficient rs = 0.41; p < 0.0001). No significant correlation was shown between MET expression and phosphorylation (p > 0.05). c-MET gene amplification was detected in eight of 214 patients (3.7%). No significant association was observed between c-MET amplification, c-MET protein expression and phosphorylation.

conclusionOur data indicate, that neither expression of c-MET nor the gene amplification status might be the best way to select patients for MET targeting therapies, since no correlation with the activation status of MET was observed. We propose to take into account analyzing the phosphorylation status of MET by IHC to select patients for MET targeting therapies. Signaling of the receptor and the activation of downstream molecules might be more crucial for the benefit of therapeutics targeting MET receptor tyrosine kinases than expression levels alone.

Indexed as

Gene AmplificationGene Expression Regulation, NeoplasticPatient SelectionAgedAntineoplastic AgentsBlotting, WesternCarcinoma, Non-Small-Cell LungFemaleHumansImmunohistochemistryIn Situ Hybridization, FluorescenceLung NeoplasmsMaleMiddle AgedMolecular Targeted TherapyPhosphorylationAntineoplastic AgentsProto-Oncogene Proteins c-met

Identifiers

PMID26215852
PMCPMC4517562
OpenAlexW2099753997

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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.