High discrepancy of driver mutations in patients with NSCLC and synchronous multiple lung ground-glass nodules
Background: The aim of this study was to investigate the discordance rates of eight known driver mutations among multiple matched intrapulmonary ground-glass nodules (GGNs) in non-small-cell lung cancer (NSCLC) patients. Methods: Tumors from 35 patients with multiple lesions resected, including conf...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
May 2015
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| In: |
Journal of thoracic oncology
Year: 2015, Jahrgang: 10, Heft: 5, Pages: 778-783 |
| ISSN: | 1556-1380 |
| DOI: | 10.1097/JTO.0000000000000487 |
| Online-Zugang: | Verlag, teilw. kostenfrei, Volltext: http://dx.doi.org/10.1097/JTO.0000000000000487 Verlag, teilw. kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S1556086415323893 
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| Verfasserangaben: | Chunyan Wu, MD, Chao Zhao, MD, Yang Yang, MD, Yayi He, MD, Likun Hou, MD, Xuefei Li, PhD, Guanghui Gao, MD, Jingyun Shi, MD, Shengxiang Ren, MD, PhD, Haiqing Chu, MD, Caicun Zhou, MD, PhD, Jun Zhang, MD, PhD, and Gerald Schmid-Bindert, MD |
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| 245 | 1 | 0 | |a High discrepancy of driver mutations in patients with NSCLC and synchronous multiple lung ground-glass nodules |c Chunyan Wu, MD, Chao Zhao, MD, Yang Yang, MD, Yayi He, MD, Likun Hou, MD, Xuefei Li, PhD, Guanghui Gao, MD, Jingyun Shi, MD, Shengxiang Ren, MD, PhD, Haiqing Chu, MD, Caicun Zhou, MD, PhD, Jun Zhang, MD, PhD, and Gerald Schmid-Bindert, MD |
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| 520 | |a Background: The aim of this study was to investigate the discordance rates of eight known driver mutations among multiple matched intrapulmonary ground-glass nodules (GGNs) in non-small-cell lung cancer (NSCLC) patients. Methods: Tumors from 35 patients with multiple lesions resected, including confirmed NSCLC and at least one GGN, were analyzed for mutations in EGFR, KRAS, HER2, BRAF, and PIK3CA together with fusions in ALK, ROS1, and RET. Results: From 35 patients, a total of 72 lesions (60 were GGNs) were analyzed. These included nine adenocarcinoma in situ, nine minimal invasive adenocarcinoma, and 54 invasive adenocarcinoma. Among them, 33 tumor lesions (45.8 %) were found harboring EGFR mutations: 13 tumors with exon 19 deletion, 18 with L858R on exon 21, and two with both exon 19 del and L858R mutation. There were 5 tumors (6.9 %) harboring EML4-ALK fusion, four HER2 mutations (5.6%), three KRAS mutations (4.2%), one ROS1 fusion and one BRAF mutation. When we used the matched tumors to determine the intertumor discrepancy, only six out of 30 patients harbored identical mutations. The discordance rate of driver mutations was 80% (24 of 30) in those patients harboring at least one of the detected driver mutations. The median disease-free survival was 41.2 months (95% confidence interval: 35.8-52.6 months) and the median overall survival was “still not reached” in this cohort. Conclusions: We found a high discrepancy of driver mutations among NSCLC patients with GGNs and a favorable prognosis after multiple lesions resection, which support surgical resection in this situation as a reasonable approach. | ||
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