A new rapid method for detecting epidermal growth factor receptor mutations in non-small cell lung cancer
| Autor: | Shingo Matsumoto, Tomohiro Sakamoto, Kensaku Okada, Kazuhiro Hashimoto, Jun Kurai, Tadashi Igishi, Naoto Burioka, Eiji Shimizu, Masaki Nakamoto, Hiroki Chikumi, Keiji Matsunami, Masahiro Kodani, Tsuyoshi Kitaura, Miyako Takata, Akira Yamasaki |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Cancer Research Lung Neoplasms Point-of-Care Systems DNA Mutational Analysis Biology Real-Time Polymerase Chain Reaction Gefitinib Carcinoma Non-Small-Cell Lung medicine Humans Epidermal growth factor receptor ultrarapid PCR Lung cancer non-small cell lung cancer Oncogene Cancer Articles General Medicine medicine.disease EGFR mutations Molecular biology respiratory tract diseases ErbB Receptors Real-time polymerase chain reaction Oncology Mutation biology.protein Female Erlotinib Sample collection epidermal growth factor receptor medicine.drug |
| Zdroj: | Oncology Reports |
| ISSN: | 1791-2431 1021-335X |
| DOI: | 10.3892/or.2015.3716 |
| Popis: | Mutations in the epidermal growth factor receptor (EGFR) gene are associated with a favorable clinical response to the EGFR tyrosine kinase inhibitors gefitinib and erlotinib in non-small cell lung cancer (NSCLC). We present here, a new method for the rapid detection of the two most common EGFR mutations (delE746-A750 and L858R) from clinical samples. The methodology involves the combination of newly designed mutation-specific primers and a novel real-time PCR machine with an innovative thermo-control mechanism that enables ultrarapid PCR. We evaluated this method using a cell mixture composed of various ratios of lung cancer cells harboring mutated or wild-type EGFR, lung cancer tissues obtained by surgery, and a cytology sample obtained by bronchoscopy from a lung cancer patient. In the cell mixture analysis, our method detected 0.1% of cells with delE746-A750 and 1% of cells with L858R among cells with wild-type EGFR. In 143 lung cancer tissues, the result of this assay was concordant with those of direct sequencing in 138 samples. The five samples with discordant results were tested using a PCR-Invader assay and the result matched those of our method at 100%. We also successfully detected EGFR mutations in the lavage obtained from a lung cancer patient. The turnaround time for this method was |
| Databáze: | OpenAIRE |
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