ArticlePloS one2023
Detection of BRAF mutations in malignant melanoma and colorectal cancer by SensiScreen® FFPE BRAF qPCR assay.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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16 authors at 3 institutions in 2 countries.
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Abstract
Mutations in BRAF exon 15 lead to conformational changes in its activation loops, resulting in constitutively active BRAF proteins which are implicated in the development of several human cancer types. Different BRAF inhibitors have been developed and introduced in clinical practice. Identification of BRAF mutations influences the clinical evaluation, treatment, progression and for that reason a sensitive and specific identification of BRAF mutations is on request from the clinic. Here we present the SensiScreen® FFPE BRAF qPCR Assay that uses a novel real-time PCR-based method for BRAF mutation detection based on PentaBases proprietary DNA analogue technology designed to work on standard real-time PCR instruments. The SensiScreen® FFPE BRAF qPCR Assay displays high sensitivity, specificity, fast and easy-to-use. The SensiScreen® FFPE BRAF qPCR Assay was validated on two different FFPE tumour biopsy cohorts, one cohort included malignant melanoma patients previously analyzed by the Cobas® 4800 BRAF V600 Mutation Test, and one cohort from colorectal cancer patients previously analyzed by mutant-enriched PCR and direct sequencing. All BRAF mutant malignant melanoma patients were confirmed with the SensiScreen® FFPE BRAF qPCR Assay and additional four new mutations in the malignant melanoma cohort were identified. All the previously identified BRAF mutations in the colorectal cancer patients were confirmed, and additional three new mutations not identified with direct sequencing were detected. Also, one new BRAF mutation not previously identified with ME-PCR was found. Furthermore, the SensiScreen® FFPE BRAF qPCR Assay identified the specific change in the amino acid. The SensiScreen® FFPE BRAF qPCR Assay will contribute to a more specific, time and cost saving approach to better identify and characterize mutations in patients affected by cancer, and consequently permits a better BRAF characterization that is fundamental for therapy decision.
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