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Girolimetti G, De Iaco P, Procaccini M, Panzacchi R, Kurelac I, Amato LB, Dondi G, Caprara G, Ceccarelli C, Santini D, Porcelli AM, Perrone AM, Gasparre G. Mitochondrial DNA sequencing demonstrates clonality of peritoneal implants of borderline ovarian tumors. Mol Cancer 2017; 16:47. [PMID: 28241835 PMCID: PMC5327524 DOI: 10.1186/s12943-017-0614-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 02/17/2017] [Indexed: 11/10/2022] Open
Abstract
Borderline ovarian tumors are rare low malignant potential neoplasms characterized by the absence of stromal invasion, whose main prognostic factors are stage and type of peritoneal implants. The latter are defined as invasive when cell proliferation invades the underlying tissue (peritoneal surface, omentum and intestinal wall), or noninvasive. It is still unknown if these implants are metastatic spread from the primary ovarian mass or a neoplastic transformation de novo of the peritoneal surface. Mitochondrial DNA sequencing was performed to assess clonality in eight patients presenting both borderline ovarian tumors and implants. In 37.5% of the cases, the same mitochondrial DNA mutation was present in both borderline ovarian tumors and the peritoneal implant, being this evidence that implants may arise as a consequence of a spread from a single ovarian site.
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Affiliation(s)
- Giulia Girolimetti
- Department of Medical and Surgical Sciences (DIMEC) - Unit of Medical Genetics, University of Bologna Medical School, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Pierandrea De Iaco
- Department of Obstetrics and Gynecology, Oncologic Gynecology Unit, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Martina Procaccini
- Department of Obstetrics and Gynecology, Oncologic Gynecology Unit, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Riccardo Panzacchi
- Unit of Pathology, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Ivana Kurelac
- Department of Medical and Surgical Sciences (DIMEC) - Unit of Medical Genetics, University of Bologna Medical School, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Laura Benedetta Amato
- Department of Medical and Surgical Sciences (DIMEC) - Unit of Medical Genetics, University of Bologna Medical School, Via G. Massarenti 9, 40138, Bologna, Italy
| | - Giulia Dondi
- Department of Obstetrics and Gynecology, Oncologic Gynecology Unit, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Giacomo Caprara
- Unit of Oncology and Transplant Pathology, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Claudio Ceccarelli
- Department of Experimental, Diagnostic, and Specialty Medicine, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Donatella Santini
- Unit of Pathology, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Anna Maria Porcelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40138, Bologna, Italy
| | - Anna Myriam Perrone
- Department of Obstetrics and Gynecology, Oncologic Gynecology Unit, University Hospital S.Orsola-Malpighi, 40138, Bologna, Italy
| | - Giuseppe Gasparre
- Department of Medical and Surgical Sciences (DIMEC) - Unit of Medical Genetics, University of Bologna Medical School, Via G. Massarenti 9, 40138, Bologna, Italy.
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Curry EWJ, Stronach EA, Rama NR, Wang YYP, Gabra H, El-Bahrawy MA. Molecular subtypes of serous borderline ovarian tumor show distinct expression patterns of benign tumor and malignant tumor-associated signatures. Mod Pathol 2014; 27:433-42. [PMID: 23948749 DOI: 10.1038/modpathol.2013.130] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/06/2013] [Accepted: 05/11/2013] [Indexed: 11/09/2022]
Abstract
Borderline ovarian tumors show heterogeneity in clinical behavior. Most have excellent prognosis, although a small percentage show recurrence or progressive disease, usually to low-grade serous carcinoma. The aim of this study was to understand the molecular relationship between these entities and identify potential markers of tumor progression and therapeutic targets. We studied gene expression using Affymetrix HGU133plus2 GeneChip microarrays in 3 low-grade serous carcinomas, 13 serous borderline tumors and 8 serous cystadenomas. An independent data set of 18 serous borderline tumors and 3 low-grade serous carcinomas was used for validation. Unsupervised clustering revealed clear separation of benign and malignant tumors, whereas borderline tumors showed two distinct groups, one clustering with benign and the other with malignant tumors. The segregation into benign- and malignant-like borderline molecular subtypes was reproducible on applying the same analysis to an independent publicly available data set. We identified 50 genes that separate borderline tumors into their subgroups. Functional enrichment analysis of genes that separate borderline tumors to the two subgroups highlights a cell adhesion signature for the malignant-like subset, with Claudins particularly prominent. This is the first report of molecular subtypes of borderline tumors based on gene expression profiling. Our results provide the basis for identification of biomarkers for the malignant potential of borderline ovarian tumor and potential therapeutic targets for low-grade serous carcinoma.
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Affiliation(s)
- Edward W J Curry
- Ovarian Cancer Action Research Centre, Department of Cancer and Surgery, Imperial College London, Hammersmith Hospital, London, UK
| | - Euan A Stronach
- Ovarian Cancer Action Research Centre, Department of Cancer and Surgery, Imperial College London, Hammersmith Hospital, London, UK
| | - Nona R Rama
- Ovarian Cancer Action Research Centre, Department of Cancer and Surgery, Imperial College London, Hammersmith Hospital, London, UK
| | - Yuepeng Y P Wang
- Ovarian Cancer Action Research Centre, Department of Cancer and Surgery, Imperial College London, Hammersmith Hospital, London, UK
| | - Hani Gabra
- Ovarian Cancer Action Research Centre, Department of Cancer and Surgery, Imperial College London, Hammersmith Hospital, London, UK
| | - Mona A El-Bahrawy
- 1] Department of Histopathology, Centre for Pathology, Imperial College London, Hammersmith Hospital, London, UK [2] Department of Pathology, Faculty of Medicine, University of Alexandria, Alexandria, Egypt
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Winser A, Ledermann JA, Osborne R, Gabra H, El-Bahrawy MA. Survey of the management of borderline ovarian tumors in the United Kingdom. World J Obstet Gynecol 2012; 1:3-13. [DOI: 10.5317/wjog.v1.i2.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Borderline ovarian tumors (BOTs) represent approximately 10% of ovarian neoplasms and are a heterogeneous group of tumors with variable biological behaviour. The majority present with disease confined to the ovary and have an excellent prognosis after surgical removal. A small proportion subsequently has recurrent disease or progression to invasive cancer. Tumor recurrence can occur up to 20 years after surgical resection. There are no robust clinical, histological or molecular markers that distinguish high risk cases and no satisfactory treatment for patients with progressive disease. This results in great variability in management in different centres. We conducted a national survey on the management of borderline ovarian tumors in cancer centres representing different regions in the United Kingdom. In this article we review the literature for the current concepts in diagnosis, treatment and follow up of BOTs and we report the results of the survey of current practice in the United Kingdom. On that basis we provide recommendations for the management of patients with BOTs.
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Mills PK, Riordan DG, Cress RD. Epithelial ovarian cancer risk by invasiveness and cell type in the Central Valley of California. Gynecol Oncol 2004; 95:215-25. [PMID: 15385135 DOI: 10.1016/j.ygyno.2004.07.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2004] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To evaluate epithelial ovarian cancer (EOC) risk factors by level of invasiveness and histology. METHODS A population-based epidemiologic case-control study of EOC was conducted over a 2-year period (January 2000 to December 2001) in 22 counties of Central California that comprise the reporting area for two regional cancer registries. Telephone interviews were conducted with 256 cases and 1122 control frequencies matched on age and ethnicity. The interview obtained information on demographic factors as well as information pertinent to the respondent's menstrual and reproductive experience, use of exogenous hormones, surgical history, and family history of cancer. Adjusted odds ratios were calculated using stratification as well as Logistic regression methods. Analyses were completed by level of invasiveness and cell type. RESULTS Strong protective associations were observed for use of oral contraceptives and parity. Risk increased with a family history of ovarian, but not breast cancer and age at first birth was positively associated with increased risk. Hormone replacement therapy was associated with increased risk only in long-term users. Many of the relationships were observed only in specific histologic subtypes of EOC. CONCLUSION Risk of EOC is associated with several lifestyle and environmental exposures but the impact of these effects appears to be dependent upon level of invasiveness and histologic subtypes of EOC. However, the sample size available for analysis limits our statistical power and our ability to analyze data by histologic subtype, thus limiting interpretation of our results.
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Affiliation(s)
- Paul K Mills
- Public Health Institute, Cancer Registry of Central California, CA 93710-7905, USA.
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