Background: Currently, multiplex ligation-dependent probe amplification (MLPA) is the most commonly used technique for the detection of large genomic rearrangements (LGRs) in the BRCA1/2 genes. However, a very fast assay, the BRCA1/2 multiplex amplicon quantification (MAQ), has been recently developed by Multiplicom.
Methods: As no data regarding the application of MAQ method to BRCA1/2 genes are available in literature, here we compared for the first time the performance of the MAQ assay with MLPA by using several positive BRCA1/2 LGRs DNA samples (previously tested by MLPA).
Results: MAQ method was able to detect all BRCA1/2 LGRs and no false-positive or -negative results were obtained in independent repetitive experiments.
Conclusions: We can affirm that MAQ, as well as MLPA method, results to be valid and reproducible tools for molecular diagnostics and we are confident that this assay can be used for BRCA1/2 mutational screening as a fast and safe alternative to MLPA, particularly in the first line of analysis.
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http://dx.doi.org/10.1515/cclm-2013-1114 | DOI Listing |
ESMO Open
January 2025
Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bind.), Section of Medical Oncology, University of Palermo, Palermo, Italy.
Background: Germline pathogenic variants (gPVs) in the breast cancer susceptibility gene 1/2 (BRCA1/2) genes confer high-penetrance susceptibility to breast cancer (BC) and ovarian cancer (OC). Although most female BRCA carriers develop only a single BRCA-associated tumor in their lifetime, a smaller subpopulation is diagnosed with multiple primary tumors (MPTs). The genetic factors influencing this risk remain unclear.
View Article and Find Full Text PDFEur Urol Open Sci
January 2025
Merck & Co. Inc, Rahway, NJ, USA.
Background And Objective: Treatment landscape in advanced prostate cancer (PC) is evolving. There is limited understanding of the factors influencing decision-making for genetic/genomic testing and the barriers to recommending testing and treatment in international real-world clinical practice following the approval of poly-adenosine diphosphate-ribose polymerase inhibitors (PARPi) for metastatic castration-resistant PC (mCRPC). This work aims to assess genetic/genomic testing patterns and methods, including for homologous recombination repair mutation (HRRm), and treatment decisions among physicians caring for patients with PC across the USA, Europe, and Asia.
View Article and Find Full Text PDFFront Oncol
January 2025
Department of Laboratory Medicine and Pathology, University of Minnesota School of Medicine, Minneapolis, MN, United States.
Genomic analysis has played a significant role in the identification of driver mutations that are linked to disease progression and response to drug treatment in ovarian cancer. A prominent example is the stratification of epithelial ovarian cancer (EOC) patients with homologous recombination deficiency (HRD) characterized by mutations in DNA damage repair genes such as for treatment with PARP inhibitors. However, recent studies have shown that some epithelial ovarian tumors respond to PARP inhibitors irrespective of their HRD or mutation status.
View Article and Find Full Text PDFPrecis Clin Med
March 2025
Department of Gynecology and Obstetrics, CIO ABCD, University Hospital Düsseldorf, Düsseldorf 40225, Germany.
Background: Circulating cell-free tumor DNA (ctDNA) provides a non-invasive approach for assessing somatic alterations. The German PRAEGNANT registry study aims to explore molecular biomarkers and investigate their integration into clinical practice. In this context, ctDNA testing was included to understand the motivations of clinicians to initiate testing, to identify somatic alterations, and to assess the clinical impact of the results obtained.
View Article and Find Full Text PDFCardiooncology
January 2025
Department of Oncology-Pathology, Karolinska Institutet, Stockholm, SE-171 77, Sweden.
Background: Breast cancer (BC) and cardiovascular disease (CVD) are prevalent comorbidities in aging populations. Advances in BC treatment have improved survival rates but increased the risk of CVD, particularly among younger patients with BRCA1/2 mutations. BRCA1/2 gene mutations, prevalent in younger BC patients, impair cardioprotective effects, elevating CVD risk alongside cancer treatments.
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