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- W2901417842 abstract "Breast cancer is the leading cause of cancer-related death in women worldwide. Mutations of the PIK3CA gene are found in approximately 25% of breast carcinomas and are reported as activators of the PI3K/AKT/mTOR pathway. This study aims to compare three assays for the somatic mutation detection of PIK3CA gene in FFPE tissues of patients with breast cancer. We compared Cobas® PIK3CA Mutation Test (Roche Diagnostics, Meylan, France), PCR amplification-refractory mutation system Scorpions® (ARMS) and High-Resolution Melting PCR assay (HRM) for the detection of PIK3CA mutations. Discrepant samples were assessed using Next Generation Sequencing (NGS). 46 FFPE breast carcinomas samples of patients treated for breast cancer have been assessed for PIK3CA mutations using the three PCR assays. Among the 46 samples, 17 (37.8%), 13 (28.36%) and 19 (41.3%) had a PIK3CA mutation, with Cobas®, ARMS and HRM assays respectively. Three different mutations of PIK3CA have been detected for one sample. Calculated kappa were 0.95[0.86;1] between Cobas® and HRM, 0.75[0.55;0.95] between Cobas® and ARMS and 0.72[0.51;0.92] between HRM and ARMS. Five samples were found with discrepant results. Our study shows that the Cobas® assay is suitable for PIK3CA mutation assessment in patients with breast cancer. HRM assay is also suitable for PIK3CA mutation assessment but requires a mutation characterization with a specific assay." @default.
- W2901417842 created "2018-11-29" @default.
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- W2901417842 date "2018-11-13" @default.
- W2901417842 modified "2023-10-08" @default.
- W2901417842 title "Comparison of Three Real-Time PCR Assays for the Detection of PIK3CA Somatic Mutations in Formalin-Fixed Paraffin Embedded Tissues of Patients with Breast Carcinomas" @default.
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- W2901417842 doi "https://doi.org/10.1007/s12253-018-0538-x" @default.
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