Evidence map›Paper›PMID 32841306›Full record

ArticlePloS one2020

MGMT promoter methylation in triple negative breast cancer of the GeparSixto trial.

Paul Jank, Claire Gehlhaar, Lederer Bianca, Fontanella Caterina, Schneeweiss Andreas, Thomas Karn, Frederik Marmé, Hans-Peter Sinn, Marion van Mackelenbergh, Bruno Sinn and 11 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2020. 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 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.7field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. The OReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2022
    Article
  8. Review
  9. Article
  10. Frontiers in oncology · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors at 13 institutions in 1 country.

Paul JankInstitut für Pathologie, Philipps-Univeristät Marburg, Marburg, Germany.ORCID 0000-0001-7076-0476
Claire GehlhaarInstitut für Neuropathologie, Charité -Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institut of Health, Berlin, Germany.
Lederer BiancaGerman Breast Group Forschungs GmbH, Neu-Isenburg, Germany.ORCID 0000-0002-4512-2226
Fontanella CaterinaDepartment of Oncology, S. Martino Hospital, Belluno, Italy.
Schneeweiss AndreasNationales Centrum für Tumorerkrankungen, Universitätsklinikum und Deutsches Krebsforschungszentrum, Heidelberg, Germany.
Thomas KarnKlinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Frankfurt, Frankurt, Germany.
Frederik MarméUniversitätsfrauenklinik Mannheim, Mannheim, Germany.
Hans-Peter SinnUniversitätsfrauenklinik Heidelberg, Heidelberg, Germany.
Marion van MackelenberghUniversitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe, Schleswig-Holstein, Germany.
Bruno SinnInstitut für Pathologie, Charité -Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institut of Health, Berlin, Germany.
Dirk-Michael ZahmSRH Wald-Klinikum Gera, Gera, Germany.
Barbara Ingold-HeppnerInstitut für Pathologie, DRK Kliniken Berlin, Berlin, Germany.
Christian SchemMammazentrum Hamburg, Hamburg, Germany.
Elmar StickelerKlinik für Gynäkologie, Uniklinik RWTH Aachen, Aachen, Germany.
Peter A FaschingUniversity Hospital Erlangen, Erlangen, Germany.
Valentina NekljudovaGerman Breast Group Forschungs GmbH, Neu-Isenburg, Germany.
Eliane Tabea TaubeInstitut für Pathologie, Charité -Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institut of Health, Berlin, Germany.
Frank HeppnerInstitut für Neuropathologie, Charité -Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institut of Health, Berlin, Germany.
Volkmar MüllerKlinik für Gynäkologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.
Carsten DenkertInstitut für Pathologie, Philipps-Univeristät Marburg, Marburg, Germany.
Sibylle LoiblGerman Breast Group Forschungs GmbH, Neu-Isenburg, Germany.
Humboldt-Universität zu Berlin · DEGerman Breast group · DEFrauenklinik Heidelberg · DEPhilipps University of Marburg · DEDRK Kliniken Berlin · DEGerman Cancer Research Center · DEGoethe University Frankfurt · DEMammazentrum Hamburg · DESRH Wald-Klinikum Gera · DEUniversität Hamburg · DEUniversitätsklinikum Aachen · DEUniversitätsklinikum Erlangen · DEUniversity Hospital Schleswig-Holstein · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Triple-negative breast cancer (TNBC) is typically treated with chemotherapeutic agents, including carboplatin (Cb), an DNA platinating agent. The O6-methylguanine-DNA-methyltransferase gene (MGMT) encodes for the protein O6-alkylguanine-DNA-alkyltransferase (MGMT protein). MGMT protein is involved in DNA repair mechanisms to remove mutagenic and cytotoxic adducts from O6-guanine in DNA. In glioblastoma multiforme, MGMT methylation status is a predictive biomarker for increased response to temozolomide therapy. It has been suggested, that MGMT protein may have relevance for cellular adaptation and could have an influence on resistance to carboplatin therapy. We investigated the influence of MGMT promoter methylation on pathologic complete response and survival of patients with TNBC treated in the neoadjuvant GeparSixto trial. In 174 of 210 available TNBC tumors a valid MGMT promoter methylation status was determined by pyrosequencing of 5 CpG islands. In 21.8%, we detected a mean MGMT promoter methylation >10%. Overall, MGMT promoter methylation was not significantly associated with pathological complete response (pCR) rate. After stratification for the two therapy arms with and without Cb no statistically significant differences in therapy response rates between the two MGMT promoter methylation groups could be observed. Our results show that different MGMT promoter methylation status is not related to different chemotherapy response rates in the TNBC setting in GeparSixto.

Indexed as

Clinical Trials as TopicClinical Trials, Phase II as TopicDNA MethylationSequence Analysis, DNABiopsyCohort StudiesCpG IslandsDNA Modification MethylasesDNA Repair EnzymesHumansPromoter Regions, GeneticRetrospective StudiesSurvival AnalysisTriple Negative Breast NeoplasmsTumor Suppressor ProteinsDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTumor Suppressor Proteins

Identifiers

PMID32841306
PMCPMC7446962
OpenAlexW3080465618

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.