Next-generation sequencing-based BRCA testing on cytological specimens from ovarian cancer ascites reveals high concordance with tumour tissue analysis

2019 ◽  
Vol 73 (3) ◽  
pp. 168-171 ◽  
Author(s):  
Caterina Fumagalli ◽  
Alessandra Rappa ◽  
Chiara Casadio ◽  
Ilaria Betella ◽  
Nicoletta Colombo ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Next Generation Sequencing ◽  
Clinical Decision Making ◽  
Parp Inhibitor ◽  
Clinical Decision ◽  
Tumour Tissue ◽  
Next Generation ◽  
High Concordance ◽  
Next Generation Sequencing Ngs ◽  
Generation Sequencing

BackgroundWith the approval of the poly (ADP-ribose) polymerase (PARP) inhibitor olaparib for newly diagnosed, breast cancer gene (BRCA)1/2 mutated, ovarian cancer women, the assessment of BRCA1/2 tumour status will be shortly required at the time of diagnosis.AimTo investigate the feasibility of next-generation sequencing (NGS)-based BRCA tumour test on cytological specimens from ovarian cancer ascites.MethodsWe evaluated the BRCA1/2 status on neoplastic ascites and corresponding tumour tissue of 11 patients with ovarian cancer, using the NGS ‘Oncomine BRCA Research Assay’.ResultsThe NGS-based BRCA test on cytological samples had a success rate of 100%, with 11 of 11 concordant BRCA1/2 results between ascites and tumour tissues analyses, including two wild type samples and nine cases harbouring somatic or germline variants.ConclusionBRCA test may be performed on ovarian cancer ascites, reproducing BRCA1/2 tumour status and representing a useful tool for clinical decision-making.

scholarly journals Applications of Next Generation Sequencing to the Analysis of Familial Breast/Ovarian Cancer

2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Veronica Zelli ◽  
Chiara Compagnoni ◽  
Katia Cannita ◽  
Roberta Capelli ◽  
Carlo Capalbo ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Next Generation Sequencing ◽  
Next Generation ◽  
Brca1 And Brca2 ◽  
Familial Predisposition ◽  
Cancer Pathogenesis ◽  
Or Gene ◽  
Gene Panels ◽  
Next Generation Sequencing Ngs ◽  
Generation Sequencing

Next generation sequencing (NGS) provides a powerful tool in the field of medical genetics, allowing one to perform multi-gene analysis and to sequence entire exomes (WES), transcriptomes or genomes (WGS). The generated high-throughput data are particularly suitable for enhancing the understanding of the genetic bases of complex, multi-gene diseases, such as cancer. Among the various types of tumors, those with a familial predisposition are of great interest for the isolation of novel genes or gene variants, detectable at the germline level and involved in cancer pathogenesis. The identification of novel genetic factors would have great translational value, helping clinicians in defining risk and prevention strategies. In this regard, it is known that the majority of breast/ovarian cases with familial predisposition, lacking variants in the highly penetrant BRCA1 and BRCA2 genes (non-BRCA), remains unexplained, although several less penetrant genes (e.g., ATM, PALB2) have been identified. In this scenario, NGS technologies offer a powerful tool for the discovery of novel factors involved in familial breast/ovarian cancer. In this review, we summarize and discuss the state of the art applications of NGS gene panels, WES and WGS in the context of familial breast/ovarian cancer.

scholarly journals Tumor BRCA Test for Patients with Epithelial Ovarian Cancer: The Role of Molecular Pathology in the Era of PARP Inhibitor Therapy

Cancers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1641 ◽  
Author(s):  
Caterina Fumagalli ◽  
Federica Tomao ◽  
Ilaria Betella ◽  
Alessandra Rappa ◽  
Mariarosaria Calvello ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Next Generation Sequencing ◽  
Epithelial Ovarian Cancer ◽  
Success Rate ◽  
Parp Inhibitor ◽  
Turnaround Time ◽  
Molecular Diagnostic ◽  
Next Generation ◽  
Clinical Implementation ◽  
Generation Sequencing

The PARP inhibitor olaparib has been approved in the maintenance setting of platinum-sensitive epithelial ovarian cancer patients with germline or somatic BRCA1/2 mutation. Therefore, the availability of a tumor BRCA test has become a clinical need. We report the results of the clinical implementation of a tumor BRCA test within the frame of an institutional workflow for the management of patients with nonmucinous and nonborderline epithelial ovarian cancer. In total, 223 patients with epithelial ovarian cancer were prospectively analyzed. BRCA1/2 status was evaluated on formalin-fixed, paraffin-embedded tumor specimens using next-generation sequencing technology. The tumor BRCA test had a success rate of 99.1% (221 of 223 successfully analyzed cases) and a median turnaround time of 17 calendar days. Among the 221 cases, BRCA1 or BRCA2 pathogenic/likely pathogenic mutations were found in 62 (28.1%) cases and variants of uncertain significance in 25 (11.3%) cases. The concordance rate between tumor BRCA test results and germline BRCA1/2 status was 87%, with five cases harboring pathogenic/likely pathogenic somatic-only mutations. The next-generation, sequencing-based tumor BRCA test showed a high success rate and a turnaround time compatible with clinical purposes. The tumor BRCA test could be implemented in a molecular diagnostic setting and it may guide the clinical management of patients with epithelial ovarian cancer.

scholarly journals New Challenges in Tumor Mutation Heterogeneity in Advanced Ovarian Cancer by a Targeted Next-Generation Sequencing (NGS) Approach

Cells ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 584 ◽  
Author(s):  
Marica Garziera ◽  
Rossana Roncato ◽  
Marcella Montico ◽  
Elena De Mattia ◽  
Sara Gagno ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Next Generation Sequencing ◽  
Residual Disease ◽  
Advanced Ovarian Cancer ◽  
Genetic Profile ◽  
Next Generation ◽  
Platinum Based Chemotherapy ◽  
Targeted Ngs ◽  
Next Generation Sequencing Ngs ◽  
Generation Sequencing

Next-generation sequencing (NGS) technology has advanced knowledge of the genomic landscape of ovarian cancer, leading to an innovative molecular classification of the disease. However, patient survival and response to platinum-based treatments are still not predictable based on the tumor genetic profile. This retrospective study characterized the repertoire of somatic mutations in advanced ovarian cancer to identify tumor genetic markers predictive of platinum chemo-resistance and prognosis. Using targeted NGS, 79 primary advanced (III–IV stage, tumor grade G2-3) ovarian cancer tumors, including 64 high-grade serous ovarian cancers (HGSOCs), were screened with a 26 cancer-genes panel. Patients, enrolled between 1995 and 2011, underwent primary debulking surgery (PDS) with optimal residual disease (RD < 1 cm) and platinum-based chemotherapy as first-line treatment. We found a heterogeneous mutational landscape in some uncommon ovarian histotypes and in HGSOC tumor samples with relevance in predicting platinum sensitivity. In particular, we identified a poor prognostic signature in patients with HGSOC harboring concurrent mutations in two driver actionable genes of the panel. The tumor heterogeneity described, sheds light on the translational potential of targeted NGS approach for the identification of subgroups of patients with distinct therapeutic vulnerabilities, that are modulated by the specific mutational profile expressed by the ovarian tumor.

scholarly journals Next Generation Sequencing (NGS) and patient pathways: What is the impact on clinical decision?

2018 ◽  
Vol 29 ◽  
pp. vi14-vi15
Author(s):  
S. Coquerelle ◽  
M. Darlington ◽  
M. Michel ◽  
M. Durand ◽  
J. Gutton ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Clinical Decision ◽  
Next Generation ◽  
Patient Pathways ◽  
Next Generation Sequencing Ngs ◽  
The Impact ◽  
Generation Sequencing
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