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Genome-wide association analyses of ovarian cancer patients undergoing primary debulking surgery identify candidate genes for residual disease

  • OPAL Study Group
  • , AOCS Group
  • Netherlands Cancer Institute
  • Hannover Medical School
  • University of Cambridge
  • University of Tübingen
  • The University of Sydney
  • Westmead Hospital
  • Duke University
  • Queensland Institute of Medical Research
  • Friedrich-Alexander University Erlangen-Nürnberg
  • KU Leuven
  • Flanders Institute for Biotechnology
  • Universidad Rey Juan Carlos
  • Spanish National Cancer Research Centre (CNIO)
  • AvMonforte de Lemos
  • Cedars-Sinai Medical Center
  • University of Pittsburgh
  • University of California at Los Angeles
  • Danish Cancer Institute
  • University of Copenhagen
  • Mayo Clinic Rochester, MN
  • Moffitt Cancer Center
  • Emory University
  • Brigham and Women’s Hospital
  • Harvard University
  • Dartmouth Medical School Norris Cotton Cancer Center
  • University of Bergen
  • Providence Medical Center
  • Oregon Health and Science University
  • Imperial College London
  • University of Glasgow
  • Toronto Hospital
  • University of British Columbia
  • Provincial Health Services Authority
  • Gynecologic Oncology Center
  • Technische Universität Dresden
  • Partner Site Dresden
  • Klinikum Bremen-Mitte
  • Gynaekologicum Bremen
  • University of Greifswald
  • Frauenarztpraxis Belau
  • Goethe University Frankfurt
  • Universitätsklinikum Schleswig-Holstein Campus Lübeck
  • Kliniken Essen-Mitte
  • Charité – Universitätsmedizin Berlin
  • University of Duisburg-Essen
  • Ulm University
  • SLK-Kliniken
  • University of Hamburg
  • University of Marburg
  • Klinikum Ludwigshafen
  • Universitätsklinikum Kiel
  • Krankenhaus Jerusalem
  • Ludwig Maximilian University of Munich

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Survival from ovarian cancer depends on the resection status after primary surgery. We performed genome-wide association analyses for resection status of 7705 ovarian cancer patients, including 4954 with high-grade serous carcinoma (HGSOC), to identify variants associated with residual disease. The most significant association with resection status was observed for rs72845444, upstream of MGMT, in HGSOC (p = 3.9 × 10−8). In gene-based analyses, PPP2R5C was the most strongly associated gene in HGSOC after stage adjustment. In an independent set of 378 ovarian tumours from the AGO-OVAR 11 study, variants near MGMT and PPP2R5C correlated with methylation and transcript levels, and PPP2R5C mRNA levels predicted progression-free survival in patients with residual disease. MGMT encodes a DNA repair enzyme, and PPP2R5C encodes the B56γ subunit of the PP2A tumour suppressor. Our results link heritable variation at these two loci with resection status in HGSOC.

Original languageEnglish
Article number19
Journalnpj Genomic Medicine
Volume9
Issue number1
DOIs
StatePublished - Dec 2024

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