| RRC ID |
36786
|
| 著者 |
Sakamoto T, Kodani M, Takata M, Chikumi H, Nakamoto M, Nishii-Ito S, Ueda Y, Izumi H, Makino H, Touge H, Takeda K, Yamasaki A, Yanai M, Tanaka N, Igishi T, Shimizu E.
|
| タイトル |
A novel point-of-care system for high-speed real-time polymerase chain reaction testing for epidermal growth factor receptor mutations in bronchial lavage fluids after transbronchial biopsy in patients with non-small cell lung cancer.
|
| ジャーナル |
Int J Oncol
|
| Abstract |
Epidermal growth factor receptor (EGFR) gene mutation testing is essential for choosing appropriate treatment options in patients with advanced non-small cell lung cancer (NSCLC). However, a time delay occurs between histological diagnosis and molecular diagnosis in clinical situations. To minimize this delay, we developed a novel point-of-care test for EGFR mutations, based on a high-speed real-time polymerase chain reaction (PCR) system designated here as ultrarapid PCR combined with highly accurate bronchoscopic sampling. We investigated whether our system for detecting EGFR mutations was valid by comparing test results with those obtained using a commercialized EGFR mutation test. We obtained small amounts of bronchial lavage fluids after transbronchial biopsies (TBBs) were performed on enrolled patients (n=168) who underwent endobronchial ultrasonography using a guide sheath (EBUS-GS). EGFR mutation analysis was performed by ultrarapid PCR immediately after EBUS-GS-TBBs were obtained (on the same day). After pathological diagnoses of NSCLC, EGFR mutation status in formalin-fixed, paraffin- embedded samples was confirmed by the PCR-invader method, and the concordance rates between the PCR methods were compared. The total diagnostic yield of EBUS-GS-TBB was 91.0%. The positive concordance rates for detecting 19del and L858R with the ultrarapid PCR and PCR-invader methods were both 100%. Negative concordance rates were 97.2 and 98.1%, respectively. We also demonstrated a dramatic effect of early erlotinib administration, based on ultrarapid PCR results, for a 52-year-old woman suffering from respiratory failure due to severe intrapulmonary metastases with poor performance status. In conclusion, ultrarapid PCR combined with EBUS-GS-TBB enabled rapid and reliable point-of-care testing for EGFR mutations.
|
| 巻・号 |
46(4)
|
| ページ |
1473-80
|
| 公開日 |
2015-4-1
|
| DOI |
10.3892/ijo.2015.2875
|
| PMID |
25651992
|
| PMC |
PMC4356493
|
| MeSH |
Adult
Aged
Aged, 80 and over
Biopsy / methods*
Bronchoalveolar Lavage Fluid / chemistry*
Carcinoma, Non-Small-Cell Lung / genetics
Carcinoma, Non-Small-Cell Lung / pathology*
Carcinoma, Non-Small-Cell Lung / surgery
ErbB Receptors / genetics*
Female
Humans
Lung Neoplasms / genetics
Lung Neoplasms / pathology*
Lung Neoplasms / surgery
Male
Middle Aged
Mutation*
Point-of-Care Systems
Real-Time Polymerase Chain Reaction / methods*
Sensitivity and Specificity
|
| IF |
3.899
|
| 引用数 |
8
|
|
WOS 分野
|
ONCOLOGY
|
| リソース情報 |
| ヒト・動物細胞 |
PC-9(RCB4455) |
