Endometriosis is associated with increased risk of epithelial ovarian cancers (EOCs). Using data from large endometriosis and EOC genome-wide association meta-analyses, we estimate the genetic correlation and evaluate the causal relationship between genetic liability to endometriosis and EOC histotypes, and identify shared susceptibility loci. We estimate a significant genetic correlation (r) between endometriosis and clear cell (r = 0.71), endometrioid (r = 0.48), and high-grade serous (r = 0.19) ovarian cancer, associations supported by Mendelian randomization analyses. Bivariate meta-analysis identified 28 loci associated with both endometriosis and EOC, including 19 with evidence for a shared underlying association signal. Differences in the shared risk suggest different underlying pathways may contribute to the relationship between endometriosis and the different histotypes. Functional annotation using transcriptomic and epigenomic profiles of relevant tissues/cells highlights several target genes. This comprehensive analysis reveals profound genetic overlap between endometriosis and EOC histotypes with valuable genomic targets for understanding the biological mechanisms linking the diseases.
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http://dx.doi.org/10.1016/j.xcrm.2022.100542 | DOI Listing |
Transl Cancer Res
September 2024
Oxford Gynaecological Cancer Centre, Churchill Hospital, Oxford University Hospitals Foundation Trust, Headington, UK.
Background: Ovarian clear cell carcinoma (OCCC) is a rare and distinct subtype of epithelial ovarian cancer (EOC). It is unique in several biological aspects. This study analyzes the clinicopathological features and survival outcome of patients with OCCC, aiming to identify factors affecting recurrence, progression-free survival (PFS) and overall survival (OS).
View Article and Find Full Text PDFTransl Cancer Res
June 2024
Department of Gynecology and Obstetrics, General Hospital of Northern Theater, Shenyang, China.
Background: Clear cell carcinoma of the ovary (CCCO) is a relatively rare type of epithelial ovarian cancer (EOC) that has unique biological characteristics and clinical features. Researchers have paid less attention to this disease than to other types of EOCs. However, in recent years, research in this area has still progressed.
View Article and Find Full Text PDFAm J Reprod Immunol
January 2024
Department of Obstetrics and Gynecology, Nippon Medical School, Tokyo, Japan.
Problem: In women of reproductive age, endometriosis may contribute to dysmenorrhea, chronic pelvic pain, dyspareunia, infertility, adenomyosis, and endometrial ovarian cyst (EOC). Recent studies have shown that chronic inflammation occurs in the pelvis of endometriosis patients and that this inflammation is exacerbated by immunosuppression, leading to survival endometrial debris. However, the detailed immunological mechanisms underlying the aggravation of inflammation and immunosuppression in endometriosis patients remain unclear.
View Article and Find Full Text PDFInt J Mol Sci
December 2023
Department of Surgical and Oncologic Gynaecology, 1st Department of Gynaecology and Obstetrics, M. Pirogow's Teaching Hospital, Medical University of Lodz, Wilenska 37 St., 94-029 Lodz, Poland.
Endometriosis-associated ovarian cancer (EOC) consisting of endometrioid cancer and clear-cell ovarian cancer could be promoted by many factors. miRNAs, which are small, non-coding molecules of RNA, are among them. The aim of this study was to detect miRNAs connected with the malignant transformation of endometriosis.
View Article and Find Full Text PDFEcancermedicalscience
August 2023
Department of Gynaecological Oncology, Amrita Institute of Medical Sciences, Kochi 682024, India.
Background: Malignant transformation in endometriosis was first described by Sampson in 1925. There is now sufficient evidence of its association specifically with endometrioid (EOC) and clear cell ovarian cancer (CCOC). Whether endometriosis-associated ovarian cancer (EAOC) is a distinct clinicopathological entity from non-endometriosis-associated ovarian cancer (NEAOC) remains uncertain.
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