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Journal of Cancer Research and Clinical Oncology

Erschienen in:

01.10.2014 | Original Article – Cancer Research

Estrogen receptor promoter methylation predicts survival in low-grade ovarian carcinoma patients

verfasst von: Verena Kirn, Rong Shi, Sabine Heublein, Julia Knabl, Margit Guenthner-Biller, Ulrich Andergassen, Claudius Fridrich, Wolfram Malter, Jan Harder, Klaus Friese, Doris Mayr, Udo Jeschke

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 10/2014

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Abstract

Purpose

Ovarian carcinoma is the third most common gynecological cancer and only short recurrence-free survival and overall survival times are archived. The role of the estrogen receptor expression is well studied in breast cancer and breast cancer cell lines. Patients with positive estrogen receptor expression have a lower risk for recurrence and a better overall survival. Previous studies have shown that ESR1 methylation influences ovarian cancer development and might thus play a role regarding prognosis of ovarian carcinoma.

Methods

A total of 75 patients were identified that were treated for ovarian carcinoma by debulking surgery and adjuvant standard chemotherapy. Isolation and bisulfite treatment of genomic DNA from serial sections of surgically resected ovarian carcinoma tissue was performed using commercially available kits. For the detection of methylated ESR1 promoter sequences, real-time methylation-specific PCR was used.

Results

Promoter methylation did not show a correlation between clinical–pathological data for all patients. However, within the subgroup of low-grade ovarian carcinoma patients and patients with an ovarian tumor of low malignant potential methylation of the ESR1 promoter inversely correlated with survival (p = 0.031).

Conclusions

Although small numbers of ovarian carcinoma patients were analyzed, methylation status might be useful as a prognostic marker within the subgroup of low-grade ovarian carcinoma patients. Further studies should investigate a larger cohort and also address the use of demethylation agents with respect to improve patient’s prognosis in this subgroup of ovarian carcinoma patients.

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Titel: Estrogen receptor promoter methylation predicts survival in low-grade ovarian carcinoma patients
verfasst von: Verena Kirn
Rong Shi
Sabine Heublein
Julia Knabl
Margit Guenthner-Biller
Ulrich Andergassen
Claudius Fridrich
Wolfram Malter
Jan Harder
Klaus Friese
Doris Mayr
Udo Jeschke
Publikationsdatum: 01.10.2014
Verlag: Springer Berlin Heidelberg
Erschienen in: Journal of Cancer Research and Clinical Oncology / Ausgabe 10/2014
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI: https://doi.org/10.1007/s00432-014-1729-9

Springer Medizin

Estrogen receptor promoter methylation predicts survival in low-grade ovarian carcinoma patients