Oestrogen receptor pathway activity is associated with outcome in endometrial cancer
Publication year
2020Source
British Journal of Cancer, 123, 5, (2020), pp. 785-792ISSN
Publication type
Article / Letter to editor

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Organization
Gynaecology
Pathology
Journal title
British Journal of Cancer
Volume
vol. 123
Issue
iss. 5
Page start
p. 785
Page end
p. 792
Subject
Radboudumc 17: Women's cancers RIHS: Radboud Institute for Health Sciences; Radboudumc 17: Women's cancers RIMLS: Radboud Institute for Molecular Life SciencesAbstract
BACKGROUND: Oestrogen receptor (ER) expression is a prognostic biomarker in endometrial cancer (EC). However, expression does not provide information about the functional activity of the ER pathway. We evaluated a model to quantify ER pathway activity in EC, and determined the prognostic relevance of ER pathway activity. METHODS: ER pathway activity was measured in two publicly available datasets with endometrial and EC tissue, and one clinical cohort with 107 samples from proliferative and hyperplastic endometrium and endometrioid-type EC (EEC) and uterine serous cancer (USC). ER pathway activity scores were inferred from ER target gene mRNA levels from Affymetrix microarray data (public datasets), or measured by qPCR on formalin-fixed paraffin-embedded samples (clinical cohort) and related to ER expression and outcome. RESULTS: ER pathway activity scores differed significantly throughout the menstrual cycle supporting the validity of the pathway test. The highest ER pathway scores were found in proliferative and hyperplastic endometrium and stage I EEC, whereas stage II-IV EEC and USCs had significantly lower levels. Low ER pathway activity was associated with recurrent disease, and added prognostic value in patients with low ER expression. CONCLUSION: The ER pathway test reflects activity of the ER pathway, and may improve prediction of outcome in EC patients.
This item appears in the following Collection(s)
- Academic publications [227864]
- Electronic publications [107316]
- Faculty of Medical Sciences [86218]
- Open Access publications [76446]
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