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Grigore LG, Radoi VE, Serban A, Mihai AD, Stoica I. The Molecular Detection of Germline Mutations in the BRCA1 and BRCA2 Genes Associated with Breast and Ovarian Cancer in a Romanian Cohort of 616 Patients. Curr Issues Mol Biol 2024; 46:4630-4645. [PMID: 38785549 PMCID: PMC11119367 DOI: 10.3390/cimb46050281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
The objective of this study was to identify and classify the spectrum of mutations found in the BRCA1 and BRCA2 genes associated with breast and ovarian cancer in female patients in Romania. Germline BRCA1 and BRCA2 mutations were investigated in a cohort of 616 female patients using NGS and/or MLPA methods followed by software-based data analysis and classification according to international guidelines. Out of the 616 female patients included in this study, we found that 482 patients (78.2%) did not have any mutation present in the two genes investigated; 69 patients (11.2%) had a BRCA1 mutation, 34 (5.5%) had a BRCA2 mutation, and 31 (5%) presented different type of mutations with uncertain clinical significance, moderate risk or a large mutation in the BRCA1 gene. Our investigation indicates the most common mutations in the BRCA1 and BRCA2 genes, associated with breast and ovarian cancer in the Romanian population. Our results also bring more data in support of the frequency of the c.5266 mutation in the BRCA1 gene, acknowledged in the literature as a founder mutation in Eastern Europe. We consider that the results of our study will provide necessary data regarding BRCA1 and BRCA2 mutations that would help to create a genetic database for the Romanian population.
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Affiliation(s)
- Liliana-Georgiana Grigore
- Doctoral School of Biology, Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania
- Personal Genetics, 010987 Bucharest, Romania
| | - Viorica-Elena Radoi
- Department of Medical Genetics, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Alessandrescu-Rusescu” National Institute for Maternal and Child Health, 20382 Bucharest, Romania
| | | | | | - Ileana Stoica
- Department of Genetics, Faculty of Biology, University of Bucharest, 030018 Bucharest, Romania
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Scaglione GL, Pignata S, Pettinato A, Paolillo C, Califano D, Scandurra G, Lombardo V, Di Gaudio F, Pecorino B, Mereu L, Scollo P, Capoluongo ED. Homologous Recombination Deficiency (HRD) Scoring, by Means of Two Different Shallow Whole-Genome Sequencing Pipelines (sWGS), in Ovarian Cancer Patients: A Comparison with Myriad MyChoice Assay. Int J Mol Sci 2023; 24:17095. [PMID: 38069422 PMCID: PMC10707691 DOI: 10.3390/ijms242317095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
High-grade serous ovarian cancer (HGSOC) patients carrying the BRCA1/2 mutation or deficient in the homologous recombination repair system (HRD) generally benefit from treatment with PARP inhibitors. Some international recommendations suggest that BRCA1/2 genetic testing should be offered for all newly diagnosed epithelial ovarian cancer, along with HRD assessment. Academic tests (ATs) are continuously under development, in order to break down the barriers patients encounter in accessing HRD testing. Two different methods for shallow whole-genome sequencing (sWGS) were compared to the reference assay, Myriad. All these three assays were performed on 20 retrospective HGSOC samples. Moreover, HRD results were correlated with the progression-free survival rate (PFS). Both sWGS chemistries showed good correlation with each other and a complete agreement, even when compared to the Myriad score. Our academic HRD assay categorized patients as HRD-Deficient, HRM-Mild and HRN-Negative. These three groups were matched with PFS, providing interesting findings in terms of HRD scoring and months of survival. Both our sWGS assays and the Myriad test correlated with the patient's response to treatments. Finally, our AT confirms its capability of determining HRD status, with the advantage of being faster, cheaper, and easier to carry out. Our results showed a prognostic value for the HRD score.
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Affiliation(s)
- Giovanni L. Scaglione
- Laboratory of Molecular Oncology, IDI-IRCCS, Via dei Monti di Creta, 104, 00167 Rome, Italy;
| | - Sandro Pignata
- Department of Urology and Gynecology, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Via Mariano Semmola, 53, 80131 Naples, Italy;
| | - Angela Pettinato
- Department of Pathological Anatomy, A.O.E. Cannizzaro, Via Messina, 829, 95126 Catania, Italy;
| | - Carmela Paolillo
- Department of Clinical and Experimental Medicine, University of Foggia, Viale Luigi Pinto, 71122 Foggia, Italy;
| | - Daniela Califano
- Functional Genomic Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Via Mariano Semmola, 53, 80131 Naples, Italy;
| | - Giuseppa Scandurra
- Department of Medical Oncology, A.O.E. Cannizzaro, Via Messina, 829, 95126 Catania, Italy; (G.S.); (V.L.)
| | - Valentina Lombardo
- Department of Medical Oncology, A.O.E. Cannizzaro, Via Messina, 829, 95126 Catania, Italy; (G.S.); (V.L.)
| | | | - Basilio Pecorino
- Department of Obstetrics and Gynecology, A.O.E. Cannizzaro, Via Messina, 829, 95126 Catania, Italy; (B.P.); (P.S.)
| | - Liliana Mereu
- Division of Obstetrics and Gynecology, Department of General Surgery and Medical-Surgical Specialism, University of Catania, P.O. “G Rodolico”, Via Santa Sofia, 78, 95123 Catania, Italy;
| | - Paolo Scollo
- Department of Obstetrics and Gynecology, A.O.E. Cannizzaro, Via Messina, 829, 95126 Catania, Italy; (B.P.); (P.S.)
- Faculty of Medicine, “Kore” University, Cittadella Universitaria, 94100 Enna, Italy
| | - Ettore D. Capoluongo
- Department of Clinical Pathology and Genomics, A.O.E. Cannizzaro, Via Messina 829, 95126 Catania, Italy
- Department of Molecular Medicine and Medical Biotechnology, Federico II University, Via Pansini, 5, 80131 Naples, Italy
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