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Ibusuki R, Iwama E, Shimauchi A, Tsutsumi H, Yoneshima Y, Tanaka K, Okamoto I. TP53 gain-of-function mutations promote osimertinib resistance via TNF-α-NF-κB signaling in EGFR-mutated lung cancer. NPJ Precis Oncol 2024; 8:60. [PMID: 38431700 PMCID: PMC10908812 DOI: 10.1038/s41698-024-00557-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
EGFR tyrosine kinase inhibitors (TKIs) are effective against EGFR-mutated lung cancer, but tumors eventually develop resistance to these drugs. Although TP53 gain-of-function (GOF) mutations promote carcinogenesis, their effect on EGFR-TKI efficacy has remained unclear. We here established EGFR-mutated lung cancer cell lines that express wild-type (WT) or various mutant p53 proteins with CRISPR-Cas9 technology and found that TP53-GOF mutations promote early development of resistance to the EGFR-TKI osimertinib associated with sustained activation of ERK and expression of c-Myc. Gene expression analysis revealed that osimertinib activates TNF-α-NF-κB signaling specifically in TP53-GOF mutant cells. In such cells, osimertinib promoted interaction of p53 with the NF-κB subunit p65, translocation of the resulting complex to the nucleus and its binding to the TNF promoter, and TNF-α production. Concurrent treatment of TP53-GOF mutant cells with the TNF-α inhibitor infliximab suppressed acquisition of osimertinib resistance as well as restored osimertinib sensitivity in resistant cells in association with attenuation of ERK activation and c-Myc expression. Our findings indicate that induction of TNF-α expression by osimertinib in TP53-GOF mutant cells contributes to the early development of osimertinib resistance, and that TNF-α inhibition may therefore be an effective strategy to overcome such resistance in EGFR-mutant lung cancer with TP53-GOF mutations.
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Affiliation(s)
- Ritsu Ibusuki
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiji Iwama
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Atsushi Shimauchi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hirono Tsutsumi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuto Yoneshima
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Tanaka
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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2
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Pezzuto F, Hofman V, Bontoux C, Fortarezza F, Lunardi F, Calabrese F, Hofman P. The significance of co-mutations in EGFR-mutated non-small cell lung cancer: Optimizing the efficacy of targeted therapies? Lung Cancer 2023; 181:107249. [PMID: 37244040 DOI: 10.1016/j.lungcan.2023.107249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/03/2023] [Accepted: 05/11/2023] [Indexed: 05/29/2023]
Abstract
Non-small cell lung cancer (NSCLC) is the most common cause of cancer death worldwide. In non-squamous NSCLC, the identification of oncogenic drivers and the development of target-specific molecules led to remarkable progress in therapeutic strategies and overall survival over the last decade. Nevertheless, responses are limited by systematically acquired mechanisms of resistance early on after starting a targeted therapy. Moreover, mounting evidence has demonstrated that each oncogenic-driven cluster is actually heterogeneous in terms of molecular features, clinical behaviour, and sensitivity to targeted therapy. In this review, we aimed to examine the prognostic and predictive significance of oncogene-driven co-mutations, focusing mainly on EGFR and TP53. A narrative review was performed by searching MEDLINE databases for English articles published over the last decade (from January 2012 until November 2022). The bibliographies of key references were manually reviewed to select those eligible for the topic. The genetic landscape of EGFR-mutated NSCLC is more complicated than what is known so far. In particular, the occurrence of TP53 co-mutations stratify patients carrying EGFR mutations in terms of treatment response. The study provides a deeper understanding of the mechanisms underlying the variability of the genetic landscape of EGFR-mutated NSCLC and summarizes notably the clinical importance of TP53 co-mutations for an open avenue to more properly addressing the clinical decision-making in the near future.
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Affiliation(s)
- Federica Pezzuto
- University Côte d'Azur, Laboratory of Clinical and Experimental Pathology, FHU OncoAge, BB-0033-00025, Pasteur Hospital, 30 voie romaine, 06001 Nice, France; Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Via A. Gabelli 61, 35121 Padova, Italy.
| | - Véronique Hofman
- University Côte d'Azur, Laboratory of Clinical and Experimental Pathology, FHU OncoAge, BB-0033-00025, Pasteur Hospital, 30 voie romaine, 06001 Nice, France
| | - Christophe Bontoux
- University Côte d'Azur, Laboratory of Clinical and Experimental Pathology, FHU OncoAge, BB-0033-00025, Pasteur Hospital, 30 voie romaine, 06001 Nice, France
| | - Francesco Fortarezza
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Via A. Gabelli 61, 35121 Padova, Italy
| | - Francesca Lunardi
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Via A. Gabelli 61, 35121 Padova, Italy
| | - Fiorella Calabrese
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Via A. Gabelli 61, 35121 Padova, Italy
| | - Paul Hofman
- University Côte d'Azur, Laboratory of Clinical and Experimental Pathology, FHU OncoAge, BB-0033-00025, Pasteur Hospital, 30 voie romaine, 06001 Nice, France.
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3
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Li YZ, Kong SN, Liu YP, Yang Y, Zhang HM. Can Liquid Biopsy Based on ctDNA/cfDNA Replace Tissue Biopsy for the Precision Treatment of EGFR-Mutated NSCLC? J Clin Med 2023; 12:jcm12041438. [PMID: 36835972 PMCID: PMC9966257 DOI: 10.3390/jcm12041438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/16/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
More and more clinical trials have explored the role of liquid biopsy in the diagnosis and treatment of EGFR-mutated NSCLC. In certain circumstances, liquid biopsy has unique advantages and offers a new way to detect therapeutic targets, analyze drug resistance mechanisms in advanced patients, and monitor MRD in patients with operable NSCLC. Although its potential cannot be ignored, more evidence is needed to support the transition from the research stage to clinical application. We reviewed the latest progress in research on the efficacy and resistance mechanisms of targeted therapy for advanced NSCLC patients with plasma ctDNA EGFR mutation and the evaluation of MRD based on ctDNA detection in perioperative and follow-up monitoring.
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4
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Yu Y, Ren Y, Fang J, Cao L, Liang Z, Guo Q, Han S, Ji Z, Wang Y, Sun Y, Chen Y, Li X, Xu H, Zhou J, Jiang L, Cheng Y, Han Z, Shi J, Chen G, Ma R, Fan Y, Sun S, Jiao L, Jia X, Wang L, Lu P, Xu Q, Luo X, Su W, Lu S. Circulating tumour DNA biomarkers in savolitinib-treated patients with non-small cell lung cancer harbouring MET exon 14 skipping alterations: a post hoc analysis of a pivotal phase 2 study. Ther Adv Med Oncol 2022; 14:17588359221133546. [PMID: 36339926 PMCID: PMC9629582 DOI: 10.1177/17588359221133546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 09/27/2022] [Indexed: 11/11/2022] Open
Abstract
Background Savolitinib, a selective MET inhibitor, showed efficacy in patients with non-small cell lung cancer (NSCLC), including pulmonary sarcomatoid carcinoma (PSC), harbouring MET exon 14 skipping alteration (METex14). Objective To analyse post hoc, the association between circulating tumour DNA (ctDNA) biomarkers and clinical outcomes, including resistance, with savolitinib. Design A multicentre, single-arm, open-label phase 2 study. Methods All enrolled patients with baseline plasma samples were included. Outcomes were objective response rate (ORR), progression-free survival (PFS) and overall survival (OS) by baseline METex14 and post-treatment clearance, coexisting gene alterations at baseline and disease progression. Results Among 66 patients with baseline ctDNA sequencing, 46 (70%) had detectable METex14. Frequent coexisting baseline gene alterations included TP53 and POT1 mutations. Patients with detectable baseline METex14 exhibited worse PFS [hazard ratio (HR), 1.77; 95% confidence interval (CI), 0.88-3.57; p = 0.108] and OS (HR, 3.26; 95% CI, 1.35-7.89; p = 0.006) than those without, despite showing a numerically higher ORR. Among 24 patients with baseline detectable METex14 and evaluable postbaseline samples, 13 achieved METex14 clearance post-treatment. Median time to first clearance was 1.3 months (range, 0.7-1.5). METex14 post-treatment clearance was associated with better ORR (92.3%; 95% CI, 64.0-99.8 versus 36.4%; 95% CI, 10.9-69.2; p = 0.0078), PFS (HR, 0.44; 95% CI, 0.2-1.3; p = 0.1225) and OS (HR, 0.31; 95% CI, 0.1-1.0; p = 0.0397) versus non-clearance. Among 22 patients with disease progression, 10 acquired pathway alterations (e.g. in RAS/RAF and PI3K/PTEN) alone or with secondary MET mutations (D1228H/N and Y1230C/H/S). Conclusion ctDNA biomarkers may allow for longitudinal monitoring of clinical outcomes with savolitinib in patients with METex14-positive PSC and other NSCLC subtypes. Specifically, undetectable baseline METex14 or post-treatment clearance may predict favourable clinical outcomes, while secondary MET mutations and other acquired gene alterations may explain resistance to savolitinib. Registration The trial was registered with ClinicalTrials.gov (NCT02897479) on 13 September 2016.
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Affiliation(s)
- Yongfeng Yu
- Department of Medical Oncology, Shanghai Chest
Hospital, Shanghai Jiaotong University, Shanghai, China
| | | | - Jian Fang
- Peking University Cancer Hospital and
Institute, Beijing, China
| | - Lejie Cao
- Anhui Provincial Hospital, The First Affiliated
Hospital of University of Science and Technology of China, Hefei,
China
| | - Zongan Liang
- West China Hospital of Sichuan University,
Chengdu, China
| | - Qisen Guo
- Shandong Cancer Hospital Affiliated to Shandong
University, Jinan, China
| | - Sen Han
- Peking University Cancer Hospital and
Institute, Beijing, China
| | - Zimei Ji
- Anhui Provincial Hospital, The First Affiliated
Hospital of University of Science and Technology of China, Hefei,
China
| | - Ye Wang
- West China Hospital of Sichuan University,
Chengdu, China
| | - Yulan Sun
- Shandong Cancer Hospital Affiliated to
Shandong University, Jinan, China
| | - Yuan Chen
- Tongji Hospital, Huazhong University of
Science and Technology, Wuhan, China
| | - Xingya Li
- The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, China
| | - Hua Xu
- The Second Affiliated Hospital of Nanchang
University, Nanchang, China
| | - Jianying Zhou
- The First Affiliated Hospital of Zhejiang
University, Hangzhou, China
| | - Liyan Jiang
- Department of Medical Oncology, Shanghai Chest
Hospital, Shanghai Jiaotong University, Shanghai, China
| | | | - Zhigang Han
- The Affiliated Cancer Hospital of Xinjiang
Medical University, Urumqi, China
| | | | - Gongyan Chen
- Cancer Hospital of Harbin Medical University,
Harbin, China
| | - Rui Ma
- Liaoning Cancer Hospital, Shenyang,
China
| | - Yun Fan
- Zhejiang Cancer Hospital, Hangzhou,
China
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5
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Wang CC, Lai CH, Chang YP, Chang HC, Tseng CC, Huang KT, Lin MC. Comparing survival and treatment response of patients with acquired T790M mutation second-line osimertinib versus sequential treatment of chemotherapy followed by osimertinib: A real-world study. Thorac Cancer 2021; 12:3263-3272. [PMID: 34704378 PMCID: PMC8636197 DOI: 10.1111/1759-7714.14198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/02/2022] Open
Abstract
Purpose To investigate the survival benefit with first/second generation epidermal growth factor receptor tyrosine kinase inhibitors (EGFR‐TKIs) and osimertinib in different treatment sequences. Methods We retrospectively screened 3807 patients diagnosed with cancer between 2013 and 2019 at Kaohsiung Chang Gung Memorial Hospital. In total, 76 patients with EGFR T790M mutation who received osimertinib after re‐biopsy or liquid biopsy were enrolled for the analysis. Results The median progression‐free survival (PFS), median overall survival (OS), and median OS2 of the 76 patients were 11.93, 66.53, and 29.57 months, respectively. A significant difference was observed in the disease control rate between those who received osimertinib treatment after chemotherapy (group A) and those who received osimertinib immediately following EGFR‐TKI therapy (group B) (34 [94.4%] vs. 31 [77.5%], p = 0.036). In addition, chronic obstructive pulmonary disease tended to be a poor prognostic factor for PFS and OS. Conclusion This real‐world analysis revealed that previous chemotherapy could affect the treatment outcomes of patients with non‐small cell lung cancer treated with osimertinib. Osimertinib treatment following first/second generation EGFR‐TKI treatment or chemotherapy resulted in improved survival benefit.
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Affiliation(s)
- Chin-Chou Wang
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi, Taiwan
| | - Chien-Hao Lai
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Ping Chang
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Huang-Chih Chang
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Cheng Tseng
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Kuo-Tung Huang
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Meng-Chih Lin
- Divisions of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
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6
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Liu B, Qin J, Yin Y, Zhai L, Liu G, Lizaso A, Shi D. The emergence of various genetic alterations mediated the Osimertinib resistance of a patient harboring heterozygous germline EGFR T790M: a case report. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:80. [PMID: 33553373 PMCID: PMC7859814 DOI: 10.21037/atm-20-7626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Epidermal growth factor receptor (EGFR) T790M is the major mechanism mediating resistance to first- and second-generation EGFR tyrosine kinase inhibitors. Despite the high frequency of EGFR activating mutations among East Asian lung cancer patients, germline T790M has been the subject of very little research. Questions remain as to whether germline T790M develops resistance to Osimertinib and if so, through which mechanisms. This study examined a patient harboring germline EGFR T790M who acquired resistance to Osimertinib therapy. After the failure of first-line icotinib therapy, which was administered for only 3 months, targeted next-generation sequencing of plasma samples collected at icotinib progression and the re-analysis of the baseline tissue biopsy sample revealed EGFR T790M with allelic frequencies approximating 50%. Lymphocyte genomic deoxyribonucleic acid (DNA) sequencing confirmed the germline heterozygous status of the T790M mutation. In addition to the EGFR T790M, a concurrent EGFR L858R was detected from the baseline tissue sample. Osimertinib therapy was initiated resulting in a partial response within 1 month of the commencement of the therapy. After 15.2 months of Osimertinib therapy, disease progression was evaluated due to the presence of pleural effusion. The targeted sequencing of plasma and pleural effusion samples revealed the emergence of EGFR G719A, tumor protein p53 (TP53) Q136X, and the co-amplification of Cyclin D1, fibroblast growth factor (FGF) 19, FGF3, and FGF4. This case highlights the importance of conducting next-generation sequencing–based molecular testing during both diagnostic and disease progression assessments to reveal sensitizing mutations and mutations that could mediate primary and acquired resistance to targeted therapeutics.
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Affiliation(s)
- Bin Liu
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
| | - Jianwen Qin
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
| | - Yan Yin
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
| | - Liang Zhai
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
| | - Guangxin Liu
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
| | | | - Dongsheng Shi
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, China
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Sakai K, Takahama T, Shimokawa M, Azuma K, Takeda M, Kato T, Daga H, Okamoto I, Akamatsu H, Teraoka S, Ono A, Ohira T, Yokoyama T, Yamamoto N, Nakagawa K, Nishio K. Predicting osimertinib-treatment outcomes through EGFR mutant-fraction monitoring in the circulating tumor DNA of EGFR T790M-positive patients with non-small cell lung cancer (WJOG8815L). Mol Oncol 2020; 15:126-137. [PMID: 33131198 PMCID: PMC7782093 DOI: 10.1002/1878-0261.12841] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 02/01/2023] Open
Abstract
The WJOG8815L phase II clinical study involves patients with non‐small cell lung cancer (NSCLC) that harbored the EGFR T790M mutation, which confers resistance to EGFR tyrosine kinase inhibitors (TKIs). The purpose of this study was to assess the predictive value of monitoring EGFR genomic alterations in circulating tumor DNA (ctDNA) from patients with NSCLC that undergo treatment with the third‐generation EGFR‐TKI osimertinib. Plasma samples of 52 patients harboring the EGFR T790M mutation were obtained pretreatment (Pre), on day 1 of treatment cycle 4 (C4) or cycle 9 (C9), and at diagnosis of disease progression or treatment discontinuation (PD/stop). CtDNA was screened for EGFR‐TKI‐sensitizing mutations, the EGFR T790M mutation, and other genomic alterations using the cobas EGFR Mutation Test v2 (cobas), droplet digital PCR (ddPCR), and targeted deep sequencing. Analysis of the sensitizing—and T790M—EGFR mutant fractions (MFs) was used to determine tumor mutational burden. Both MFs were found to decrease during treatment, whereas rebound of the sensitizing EGFR MF was observed at PD/stop, suggesting that osimertinib targeted both T790M mutation‐positive tumors and tumors with sensitizing EGFR mutations. Significant differences in the response rates and progression‐free survival were observed between the sensitizing EGFR MF‐high and sensitizing EGFR MF‐low groups (cutoff: median) at C4. In conclusion, ctDNA monitoring for sensitizing EGFR mutations at C4 is suitable for predicting the treatment outcomes in NSCLC patients receiving osimertinib (Clinical Trial Registration No.: UMIN000022076).
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Affiliation(s)
- Kazuko Sakai
- Department of Genome Biology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takayuki Takahama
- Department of Medical Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Koichi Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Masayuki Takeda
- Department of Medical Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Terufumi Kato
- Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Haruko Daga
- Department of Medical Oncology, Osaka City General Hospital, Osaka, Japan
| | - Isamu Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Akamatsu
- Internal Medicine III, Wakayama Medical University, Wakayama, Japan
| | - Shunsuke Teraoka
- Internal Medicine III, Wakayama Medical University, Wakayama, Japan
| | - Akira Ono
- Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Tatsuo Ohira
- Department of Surgery, Tokyo Medical University, Tokyo, Japan
| | - Toshihide Yokoyama
- Department of Respiratory Medicine, Kurashiki Central Hospital, Okayama, Japan
| | | | - Kazuhiko Nakagawa
- Department of Medical Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Faculty of Medicine, Kindai University, Osaka, Japan
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Cecchini MJ, Yi ES. Liquid biopsy is a valuable tool in the diagnosis and management of lung cancer. J Thorac Dis 2020; 12:7048-7056. [PMID: 33282410 PMCID: PMC7711358 DOI: 10.21037/jtd.2020.04.20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Liquid biopsy refers to the use of various body fluids to test for circulating biological elements derived from the tumor. Liquid biopsy has taken on an increasingly important role in lung cancer diagnosis, molecular characterization, surveillance, monitoring, and determining mechanisms of resistance. These assays can utilize various sources of cell-free DNA (cfDNA) including blood, pleural fluid, urine, and others to detect tumor associated alterations. With the increasing power of next-generation sequencing technologies and the development of assays such as digital droplet PCR, rare tumor alleles can be detected in cfDNA to determine key characteristics of the tumor. Current assays, while effective, are still challenged by limited sensitivity and capacity to single genes or small panels of genes, though this is rapidly expanding. Nevertheless, testing of cfDNA has been shown to be valuable in detecting resistance to targeted inhibitors, particularly for detection of T790M in EGFR and monitoring response to therapy. With the continued development of more powerful and sensitive assays, these techniques will empower clinicians to better characterize early stage disease and can be used in the screening of high-risk patients, which may eliminate the requirement for tissue diagnosis in some settings. That said, since the majority of these alterations are not specific to lung cancer, there will continue to be a need for tissue in at least the initial diagnosis. Used in conjugation with tissue sampling, these assays will assist the treating clinician and the pathologist to better characterize individual tumors, even in the setting of limited tissue.
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Affiliation(s)
- Matthew J Cecchini
- Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, Rochester, MN, USA
| | - Eunhee S Yi
- Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, Rochester, MN, USA
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9
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Suda K, Sakai K, Obata K, Ohara S, Fujino T, Koga T, Hamada A, Soh J, Nishio K, Mitsudomi T. Inter- and Intratumor Heterogeneity of EGFR Compound Mutations in Non-Small Cell Lung Cancers: Analysis of Five Cases. Clin Lung Cancer 2020; 22:e141-e145. [PMID: 33051123 DOI: 10.1016/j.cllc.2020.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/01/2020] [Accepted: 09/10/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Several clinical and preclinical studies suggest that non-small cell lung cancers (NSCLCs) with EGFR compound mutations were associated with lower efficacies of first-generation EGFR inhibitors than tumors with single EGFR mutation. Some researchers hypothesize that EGFR mutation status is heterogeneous in such tumors and that second-generation EGFR inhibitors may eliminate cancer cells with uncommon EGFR mutations from tumors with EGFR compound mutations. However, this hypothesis is currently unproven; therefore, we performed the current study to determine if tumor cells with EGFR compound mutations are present in heterogeneous or homogeneous manners. PATIENTS AND METHODS Multiregion analysis was performed for surgically resected primary NSCLC tumors with EGFR compound mutations to examine the intratumor heterogeneity of EGFR compound mutations. In addition, we evaluated the intertumor heterogeneity of EGFR compound mutations using 2 pleural disseminations obtained from a patient with NSCLC at exploratory thoracotomy and 9 primary or metastatic lesions obtained from 2 autopsied NSCLC patients. Digital polymerase chain reaction, target sequencing, or direct sequencing were used to detect EGFR mutations. RESULTS This study included 5 NSCLC cases; their compound mutations were L858R+S768I, G719X+S768I, G719A+R776H, L858R+E709G, and L858R+I759M. Noncancerous pulmonary tissues from each patient did not harbor EGFR mutations, which revealed that all mutations were somatic. We did not detect any intra- or intertumor heterogeneity in these EGFR compound mutations. CONCLUSION No intra- or intertumor heterogeneity was observed for EGFR compound mutations. Our results indicate that both EGFR mutations were truncal and selective elimination of cancer cells with uncommon EGFR mutations is unrealistic.
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Affiliation(s)
- Kenichi Suda
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Keiko Obata
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Shuta Ohara
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Toshio Fujino
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Takamasa Koga
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Akira Hamada
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Junichi Soh
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tetsuya Mitsudomi
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan.
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10
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Suda K, Murakami I, Obata K, Sakai K, Fujino T, Koga T, Ohara S, Hamada A, Soh J, Nishio K, Mitsudomi T. Spatial heterogeneity of acquired resistance mechanisms to 1st/2nd generation EGFR tyrosine kinase inhibitors in lung cancer. Lung Cancer 2020; 148:100-104. [PMID: 32861140 DOI: 10.1016/j.lungcan.2020.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Overcoming acquired resistance against targeted therapies to improve outcomes of lung cancer patients harboring driver mutations is a critical issue. While drug therapy oriented to a resistance mechanism appears attractive, spatial heterogeneity of resistance mechanisms in each patient will diminish treatment efficacy. However, the frequency, clinical backgrounds, clinical implications, and patterns of spatial heterogeneity in resistance mechanisms to EGFR tyrosine kinase inhibitors (TKIs) are largely unknown. PATIENTS AND METHODS This study included 128 specimens from 24 autopsied patients with lung adenocarcinoma harboring EGFR mutation. Acquired resistance mechanisms reported as relatively frequent in lung cancer, e.g., T790 M and other secondary EGFR mutations, MET and ERBB2 gene amplification, and histological transformation, were retrospectively examined. All patients had received 1st/2nd generation EGFR-TKI and showed acquired resistance to the drug before death. No patient received osimertinib. RESULTS No resistance mechanism was identified in two patients. T790M mutation was detected in 20 patients (83 %); however, nine of these patients also had lesions without T790M mutation. Among 22 patients whose resistance mechanisms were identified, ten had spatial heterogeneity of resistance mechanisms (45 %), and these patients had significantly shorter time-to-treatment failure compared with those without heterogeneity (median 4.7 months vs. 14.7 months, p = 0.0004). CONCLUSION We observed significant spatial heterogeneity of acquired resistance mechanisms to EGFR-TKIs in lung adenocarcinoma. Our results also indicate that the incidence of resistance mechanisms may vary based on the biopsied tumor locations.
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Affiliation(s)
- Kenichi Suda
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Isao Murakami
- Department of Respiratory Medicine, Higashi-Hiroshima Medical Center, Higashi-Hiroshima, Japan
| | - Keiko Obata
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Toshio Fujino
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Takamasa Koga
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Shuta Ohara
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Akira Hamada
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Junichi Soh
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Tetsuya Mitsudomi
- Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, Japan.
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11
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Esagian SM, Grigoriadou GΙ, Nikas IP, Boikou V, Sadow PM, Won JK, Economopoulos KP. Comparison of liquid-based to tissue-based biopsy analysis by targeted next generation sequencing in advanced non-small cell lung cancer: a comprehensive systematic review. J Cancer Res Clin Oncol 2020; 146:2051-2066. [PMID: 32462295 PMCID: PMC7456570 DOI: 10.1007/s00432-020-03267-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE To explore whether targeted next generation sequencing (NGS) of liquid biopsy in advanced non-small cell lung cancer (NSCLC) could potentially overcome the innate problems that arise with standard tissue biopsy, like intratumoral heterogeneity and the inability to obtain adequate samples for analysis. METHODS The Scopus, Cochrane Library, and MEDLINE (via PubMed) databases were searched for studies with matched tissue and liquid biopsies from advanced NSCLC patients, analyzed with targeted NGS. The number of mutations detected in tissue biopsy only, liquid biopsy only, or both was assessed and the positive percent agreement (PPA) of the two methods was calculated for every clinically relevant gene. RESULTS A total of 644 unique relevant articles were retrieved and data were extracted from 38 studies fulfilling the inclusion criteria. The sample size was composed of 2000 mutations tested in matched tissue and liquid biopsies derived from 1141 patients. No studies analyzed circulating tumor cells. The calculated PPA rates were 53.6% (45/84) for ALK, 53.9% (14/26) for BRAF, 56.5% (13/23) for ERBB2, 67.8% (428/631) for EGFR, 64.2% (122/190) for KRAS, 58.6% (17/29) for MET, 54.6% (12/22) for RET, and 53.3% (8/15) for ROS1. We additionally recorded data for 65 genes that are not recommended by current guidelines for mutational testing. An extra category containing results of unspecified genes was added, with a PPA rate of 55.7% (122/219). CONCLUSION Despite many advantages, liquid biopsy might be unable to fully substitute its tissue counterpart in detecting clinically relevant mutations in advanced NSCLC patients. However, it may serve as a helpful tool when making therapeutic decisions. More studies are needed to evaluate its role in everyday clinical practice.
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Affiliation(s)
- Stepan M Esagian
- Oncology Working Group, Society of Junior Doctors, Athens, Greece
| | - Georgia Ι Grigoriadou
- Oncology Working Group, Society of Junior Doctors, Athens, Greece
- 1st Department of Medical Oncology, Theageneio Anticancer Hospital, Thessaloníki, Greece
| | - Ilias P Nikas
- School of Medicine, European University of Cyprus, Nicosia, Cyprus
| | - Vasileios Boikou
- Oncology Working Group, Society of Junior Doctors, Athens, Greece
- Athens University of Economics and Business, Athens, Greece
| | - Peter M Sadow
- Department of Pathology, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Jae-Kyung Won
- Department of Pathology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Konstantinos P Economopoulos
- Oncology Working Group, Society of Junior Doctors, Athens, Greece.
- Department of Surgery, Duke University Medical Center, 2301 Erwin Rd, Durham, NC, 27710, USA.
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12
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Liquid Biopsy by Next-Generation Sequencing: a Multimodality Test for Management of Cancer. Curr Hematol Malig Rep 2020; 14:358-367. [PMID: 31346903 DOI: 10.1007/s11899-019-00532-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW While liquid biopsy is still relatively a new concept, the advent of next-generation sequencing (NGS) technologies has recently generated a revolution in the field and will be the focus of this review. RECENT FINDINGS Circulating tumor DNA (ctDNA) derives from tumor cells and provides information about the genetic alterations of tumors. However, ctDNA concentration in plasma can be below the level of detection by conventional methods; therefore, screening for actionable genetic information is challenging. Clinical trials exploring targeted and untargeted sequencing to improve the outcomes of ctDNA detection are showing promising results, having reached a limit of detection as low as 0.001% of ctDNA in a background of normal circulating DNA. Most of the challenges related to the sensitivity of detection of ctDNA have been defeated by dint of NGS-based approaches. Despite all the efforts, these methods are still expensive, time-consuming, and require advanced skills for appropriate interpretation. Nevertheless, the technology is rapidly improving, and the expectations for the implementation of liquid biopsy into the clinical practice in the near future are high.
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13
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Chang N, Duan J, Wang L, Dong Z, Liu Z. Patients with advanced non-small cell lung cancer with EGFR mutations in addition to complex mutations treated with osimertinib have a poor clinical outcome: A real-world data analysis. Oncol Lett 2020; 20:2266-2272. [PMID: 32782544 PMCID: PMC7399948 DOI: 10.3892/ol.2020.11801] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 04/09/2020] [Indexed: 12/13/2022] Open
Abstract
The present study aimed to investigate the clinical characteristics and outcomes of patients with advanced non-small cell lung cancer (NSCLC) treated with osimertinib, and focused on the resistance mechanism to osimertinib in a real-world setting. Data from 128 patients with advanced NSCLC who were treated with osimertinib between March 2015 and November 2018 at the Chinese People's Liberation Army General Hospital (Beijing, China) were retrospectively collected, and the associations between mutation types and survival were analysed. In patients treated with osimertinib, the objective response rate reached 60.9% (78/128) and the disease control rate reached 81.3% (104/128), with a median progression-free survival (PFS) time of 12.2 months. A number of complex mutations were identified in the re-analysis after the development of osimertinib resistance, including TP53, KRAS and PIK3CA mutations, epidermal growth factor receptor (EGFR) and MYC amplifications, and mutations associated with SCLC transformation, demonstrating that these mutations may account for osimertinib resistance. The median PFS time for patients with the EGFR T790M mutation (n=41) was significantly longer than that for patients with the T790M mutation and the aforementioned complex mutations (n=13) (16.7 vs. 10.8 months; P=0.001). Patients with a single EGFR mutation (n=87) had a longer median PFS time than those with an EGFR mutation and complex mutations (n=24) (14.63 vs. 6.63 months; P<0.0001). In conclusion, the present study analysed the effects of osimertinib in patients with advanced NSCLC with EGFR mutations, particularly T790M mutations. The results indicated that the efficacy of osimertinib was weakened when patients had complex mutations, suggesting that complex mutations may be responsible for resistance to osimertinib.
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Affiliation(s)
- Nijia Chang
- Chinese People's Liberation Army Medical School, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Jingjing Duan
- Chinese People's Liberation Army Medical School, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Lingxiong Wang
- Department of Oncology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Zhouhuan Dong
- Department of Pathology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
| | - Zhefeng Liu
- Department of Oncology, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China
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14
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Qin K, Hou H, Liang Y, Zhang X. Prognostic value of TP53 concurrent mutations for EGFR- TKIs and ALK-TKIs based targeted therapy in advanced non-small cell lung cancer: a meta-analysis. BMC Cancer 2020; 20:328. [PMID: 32299384 PMCID: PMC7164297 DOI: 10.1186/s12885-020-06805-5] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 03/30/2020] [Indexed: 12/26/2022] Open
Abstract
Background The prognostic significance of TP53 concurrent mutations in patients with epidermal growth factor receptor (EGFR)- or anaplastic lymphoma kinase (ALK)- mutated advanced non–small-cell lung cancer (NSCLC) who received EGFR-tyrosine kinase inhibitors (TKIs) or ALK-TKIs based targeted therapy remains controversial. Therefore, the present meta-analysis was performed to investigate the association between TP53 concurrent mutations and prognosis of patients with advanced NSCLC undergoing EGFR-TKIs or ALK-TKIs treatments. Methods Eligible studies were identified by searching the online databases PubMed, Embase, Medline, The Cochrane library and Web of Science. Hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated to clarify the correlation between TP53 mutation status and prognosis of patients. This meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Results In total, 15 studies with 1342 patients were included for final analysis. Overall, concurrent TP53 mutation was associated with unfavorable progression-free survival (PFS) (HR = 1.88, 95%CI: 1.59–2.23, p < 0.001, I2 = 0.0%, P = 0.792) and overall survival (OS) (HR = 1.92, 95%CI: 1.55–2.38, p < 0.001, I2 = 0.0%, P = 0.515). Subgroup analysis based on type of targeted therapy (EGFR-TKIs or ALK-TKIs, pathological type of cancer (adenocarcinoma only or all NSCLC subtypes) and line of treatment (first-line only or all lines) all showed that TP53 mutations was associated with shorter survivals of patients with EGFR-TKIs or ALK-TKIs treatments. Particularly, in patients with first-line EGFR-TKIs treatment, significantly poorer prognosis was observed in patients with TP53 concurrent mutations (pooled HR for PFS: 1.69, 95% CI 1.25–2.27, P < 0.001, I2 = 0.0%, P = 0.473; pooled HR for OS: 1.94, 95% CI 1.36–2.76, P < 0.001, I2 = 0.0%, P = 0.484). Begg’s funnel plots and Egger’s tests indicated no significant publication bias in this study. Conclusions This meta-analysis indicated that concurrent TP53 mutations was a negative prognostic factor and associated with poorer outcomes of patients with EGFR-TKIs or ALK-TKIs treatments in advanced NSCLC. In addition, our study provided evidence that TP53 mutations might be involved in primary resistance to EGFR-TKIs treatments in patients with sensitive EGFR mutations in advanced NSCLC.
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Affiliation(s)
- Kang Qin
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266005, Shandong Province, China
| | - Helei Hou
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266005, Shandong Province, China
| | - Yu Liang
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266005, Shandong Province, China
| | - Xiaochun Zhang
- Department of Medical Oncology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266005, Shandong Province, China.
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15
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Prior EGFR-TKI Treatment in EGFR-Mutated NSCLC Affects the Allele Frequency Fraction of Acquired T790M and the Subsequent Efficacy of Osimertinib. Target Oncol 2020; 14:433-440. [PMID: 31346928 DOI: 10.1007/s11523-019-00657-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The first (1G) and second (2G) generations of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) show differential inhibitory capacities towards EGFR T790M-mutated non-small-cell lung cancer (NSCLC) cells. OBJECTIVE To assess the ratio of the allele fractions of T790M (AFT790M) to EGFR-activating mutations (AFmEGFR) in patients treated with 1G and 2G EGFR TKIs who acquired T790M-mediated resistance and to determine the relationship between AF and the later efficacy of osimertinib. PATIENTS AND METHODS The efficacy of osimertinib was reviewed for 54 T790M-positive EGFR-mutated NSCLC patients grouped by the generation of prior EGFR TKI use (1G vs. 2G). AFmEGFR and AFT790M were determined by QuantStudio digital PCR using tissues obtained upon acquired resistance. RESULTS The progression-free survival (PFS; 20.3 vs. 11.6 months, p = 0.031) and the 1-year PFS rate (63.2 vs. 37.5%, p = 0.029) for osimertinib were significantly better for group 1G compared to group 2G. The ratio of AFT790M to AFmEGFR in group 1G was significantly higher than in group 2G (46.16 ± 5.40% vs. 25.86 ± 4.25%, p = 0.009). An unbiased analysis revealed three AF-associated clusters (ARCs) suggesting the ratio of AFT790M to AFmEGFR correlates with the efficacy of osimertinib. We found all patients in ARC2 having the highest ratio of AFT790M to AFmEGFR to have previously been treated with a 1G EGFR TKI and to show the longest osimertinib PFS compared to ARC3 (NR vs. 11.9 months, p = 0.060) and ARC1 (NR vs. 12.4 month, p = 0.045). CONCLUSIONS Acquired T790M fraction of EGFR-mutated NSCLC is linked to different generations of prior EGFR TKI use and the later efficacy of osimertinib.
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16
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Iwama E, Sakai K, Hidaka N, Inoue K, Fujii A, Nakagaki N, Ota K, Toyozawa R, Azuma K, Nakatomi K, Harada T, Hisasue J, Sakata S, Shimose T, Kishimoto J, Nakanishi Y, Nishio K, Okamoto I. Longitudinal monitoring of somatic genetic alterations in circulating cell‐free DNA during treatment with epidermal growth factor receptor–tyrosine kinase inhibitors. Cancer 2020; 126:219-227. [DOI: 10.1002/cncr.32481] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/30/2019] [Indexed: 08/30/2023]
Affiliation(s)
- Eiji Iwama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Kazuko Sakai
- Department of Genome Biology Kindai University Faculty of Medicine Osaka‐Sayama Japan
| | - Noriko Hidaka
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Koji Inoue
- Department of Respiratory Medicine Kitakyushu Municipal Medical Center Kita‐Kyushu Japan
| | - Akiko Fujii
- Department of Respiratory Medicine Koga Hospital 21 Kurume Japan
| | - Noriaki Nakagaki
- Department of Respiratory Medicine Steel Memorial Yawata Hospital Kita‐Kyushu Japan
| | - Keiichi Ota
- Department of Respiratory Medicine National Hospital Organization Fukuoka‐higashi Medical Center Fukuoka‐Koga Japan
| | - Ryo Toyozawa
- Department of Thoracic Oncology National Kyushu Cancer Center Fukuoka Japan
| | - Koichi Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine Kurume University School of Medicine Kurume Japan
| | - Keita Nakatomi
- Department of Respiratory Medicine Kyushu Chuo Hospital Fukuoka Japan
| | - Taishi Harada
- Department of Respiratory Medicine Japan Community Healthcare Organization Kyushu Hospital Kita‐Kyushu Japan
| | - Junko Hisasue
- Department of Respiratory Medicine Hara Sanshin Hospital Fukuoka Japan
| | - Shinya Sakata
- Department of Respiratory Medicine, Faculty of Life Sciences Kumamoto University Kumamoto Japan
| | | | - Junji Kishimoto
- Department of Research and Development of Next Generation Medicine Kyushu University Fukuoka Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Kazuto Nishio
- Department of Genome Biology Kindai University Faculty of Medicine Osaka‐Sayama Japan
| | - Isamu Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
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17
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Liao Y, Chen Y, Kou X, Xiao Y, Ye J, Wu A. Diagnostic test accuracy of droplet digital PCR for the detection of EGFR mutation (T790M) in plasma: Systematic review and meta-analysis. Clin Chim Acta 2019; 503:190-196. [PMID: 31805270 DOI: 10.1016/j.cca.2019.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/04/2019] [Accepted: 11/16/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND T790M mutation was a primary lead cause in the acquired resistance to EGFR-TKIs confirmed in earlier studies. Since the shortcomings of tumor tissue detection are well known, the liquid biopsy is more appropriate to track T790M status. We assessed the accuracy and clinical significance of the droplet digital PCR (ddPCR) detection of T790M mutation in plasma. METHODS We retrieved PubMed, Embase, Cochrane, and Web of science with no limitation of language and publication year. Summary sensitivity and specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR) and diagnostic odds ratio of detection of EGFR T790M status were calculated from extracted data from included articles. The summary receiver operating curve (SROC), diagnostic odds ratio (DOR), and the area under the summary receiver operating curve (AUC) was used to assess the overall diagnostic accuracy. I2 and meta-regression were used to evaluate heterogeneity and the source of heterogeneity, respectively. RESULT We identified 15 studies in the total search of 1364 reports, including 427 paired tissue and plasma samples. The pooled sensitivity and the pooled specificity were 0.68 (95% CI 0.61-0.75) and 0.85 (95% CI 0.75-0.91) by the bivariate model, respectively. The AUC and the pooled DOR were 0.78 (95% CI 0.74-0.81) and 12 (95% CI 7-22), respectively. None of the cofactors could account for the heterogeneity. CONCLUSION The plasma analysis is of a promising performance to screen EGFR-T790M mutation status by ddPCR.
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Affiliation(s)
- Yingyin Liao
- KingMed School of Laboratory Medicine of Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, Guangdong, China
| | - Yuan Chen
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiangxi Road, Guangzhou, Guangdong, China
| | - Xiaoxia Kou
- KingMed School of Laboratory Medicine of Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, Guangdong, China
| | - Yi Xiao
- The Fifth Affiliated Hospital of Guangzhou Medical University, No. 621 Gangwan Road, Guangzhou, Guangdong, China
| | - Junkai Ye
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, No. 151 Yanjiangxi Road, Guangzhou, Guangdong, China
| | - Aiwu Wu
- KingMed School of Laboratory Medicine of Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, Guangdong, China.
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18
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Li X, Yin G, Zhang Y, Dai D, Liu J, Chen P, Zhu L, Ma W, Xu W. Predictive Power of a Radiomic Signature Based on 18F-FDG PET/CT Images for EGFR Mutational Status in NSCLC. Front Oncol 2019; 9:1062. [PMID: 31681597 PMCID: PMC6803612 DOI: 10.3389/fonc.2019.01062] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/30/2019] [Indexed: 12/13/2022] Open
Abstract
Radiomics has become an area of interest for tumor characterization in 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) imaging. The aim of the present study was to demonstrate how imaging phenotypes was connected to somatic mutations through an integrated analysis of 115 non-small cell lung cancer (NSCLC) patients with somatic mutation testings and engineered computed PET/CT image analytics. A total of 38 radiomic features quantifying tumor morphological, grayscale statistic, and texture features were extracted from the segmented entire-tumor region of interest (ROI) of the primary PET/CT images. The ensembles for boosting machine learning scheme were employed for classification, and the least absolute shrink age and selection operator (LASSO) method was used to select the most predictive radiomic features for the classifiers. A radiomic signature based on both PET and CT radiomic features outperformed individual radiomic features, the PET or CT radiomic signature, and the conventional PET parameters including the maximum standardized uptake value (SUVmax), SUVmean, SUVpeak, metabolic tumor volume (MTV), and total lesion glycolysis (TLG), in discriminating between mutant-type of epidermal growth factor receptor (EGFR) and wild-type of EGFR- cases with an AUC of 0.805, an accuracy of 80.798%, a sensitivity of 0.826 and a specificity of 0.783. Consistently, a combined radiomic signature with clinical factors exhibited a further improved performance in EGFR mutation differentiation in NSCLC. In conclusion, tumor imaging phenotypes that are driven by somatic mutations may be predicted by radiomics based on PET/CT images.
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Affiliation(s)
- Xiaofeng Li
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Guotao Yin
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yufan Zhang
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Dong Dai
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Jianjing Liu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Peihe Chen
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Lei Zhu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Wenjuan Ma
- National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Department of Breast Imaging, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Wengui Xu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,National Clinical Research Center for Cancer, Tianjin, China.,Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Tianjin's Clinical Research Center for Cancer, Tianjin, China
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19
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Chai SY, Peng R, Zhang R, Zhou L, Pillay N, Tay KH, Badrick T, Li J, Horan MP. External Quality Assurance of Current Technology for the Testing of Cancer-Associated Circulating Free DNA Variants. Pathol Oncol Res 2019; 26:1595-1603. [PMID: 31487000 DOI: 10.1007/s12253-019-00744-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 08/29/2019] [Indexed: 02/07/2023]
Abstract
Liquid biopsy testing is rapidly emerging as a diagnostic means of identifying circulating free DNA (cfDNA) disease-associated variants. However, the reporting of cfDNA variants remains inconsistent due in part to the application of multiple testing pipelines which raise uncertainty about current cfDNA detection efficiency. External quality assurance (EQA) programs are required to monitor, evaluate and help improve laboratory performance for cfDNA variant detection and in clinical interpretation. This study therefore evaluated the performance of diagnostic laboratories currently performing cfDNA testing in China, Australia and New Zealand. A total of 89 laboratories participated in this EQA program. Reference testing material comprised of cfDNA manufactured to contain six different genotypes in four different genes (EGFR, KRAS, BRAF, NRAS). The predicted genotypic variant allelic frequencies ranged between 0.5% - 2.5%. Proficiency testing used a z-score on the laboratory consensus allelic frequency data to compare laboratory performance for the detection of the different genotypes. Allelic frequency genotyping data were received from 88 of the 89 laboratories. Next generation sequencing and digital PCR testing platforms were primarily used by participants in this pilot EQA. The average consensus data for each cfDNA genotype identified allelic frequencies ranging between 0.39% - 4.4%. Z-score proficiency testing found that >92% of clinical laboratories were concordant for detecting the cfDNA variants. The data from this pilot study suggest that current cfDNA testing platforms can detect cfDNA allelic frequency variants from 0.39% and above with high levels of confidence. In addition, these data highlight the importance of laboratories enrolling on EQA programs so that proficiency in cfDNA diagnostic testing can be determined and potential sources of error identified and addressed.
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Affiliation(s)
- Sze Yee Chai
- RCPAQAP Molecular Genetics, St Leonard's, Sydney, Australia
| | - Rongxue Peng
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, P R China.,Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, P R China
| | - Rui Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, P R China.,Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, P R China
| | - Li Zhou
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, P R China.,Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, P R China.,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P R China
| | | | - Kwang Hong Tay
- RCPAQAP Molecular Genetics, St Leonard's, Sydney, Australia
| | - Tony Badrick
- RCPAQAP Molecular Genetics, St Leonard's, Sydney, Australia
| | - Jinming Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, P R China. .,Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, P R China. .,Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, P R China.
| | - Martin P Horan
- RCPAQAP Molecular Genetics, St Leonard's, Sydney, Australia.
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20
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Liu Y, Xu F, Wang Y, Wu Q, Wang B, Yao Y, Zhang Y, Han-Zhang H, Ye J, Zhang L, Mao X, Zhang Z, Liu J, Zhu L, Guo R. Mutations in exon 8 of TP53 are associated with shorter survival in patients with advanced lung cancer. Oncol Lett 2019; 18:3159-3169. [PMID: 31452792 PMCID: PMC6676404 DOI: 10.3892/ol.2019.10625] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 06/05/2019] [Indexed: 12/26/2022] Open
Abstract
Currently, in clinical settings, all TP53 mutations have been considered equally. However, numerous studies have demonstrated that the position and type of mutation have differential effects on prognosis. Such discrepancy can be partially due to the lack of unifying classification system for TP53 mutations. In the present study, two of the most frequently used systems were compared, according to the location of the mutation or its functional effects on p53 protein and the impact of TP53 mutations on the overall survival (OS) time of 379 Chinese patients with advanced lung cancer was analyzed. Capture-based ultra-deep targeted sequencing on plasma samples of 379 patients with advanced lung cancer was performed. The present results suggested that mutations occurring in exon 8 may be associated with shorter OS in tyrosine kinase inhibitor-naïve patients (P=0.013) and in patients previously treated with one line of treatment (P=0.032). The results of the present study provided solid evidence that not all TP53 mutations were associated with a similar prognosis. Mutations in exon 8 were found in a subgroup of patients with unfavorable prognosis across various treatment histories. To the best of our knowledge, the present study is the first to compare different TP53 mutation classification systems in a large cohort of patients with advanced lung cancer.
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Affiliation(s)
- Yutao Liu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China
| | - Fang Xu
- Department of Thoracic Medicine, Hunan Cancer Center and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410006, P.R. China
| | - Yubo Wang
- Department of Respiratory Medicine, Daping Hospital, Third Military Medical University, Chongqing 400042, P.R. China
| | - Qingchen Wu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, P.R. China
| | - Buhai Wang
- Department of Medical Oncology, Subei People's Hospital of Jiangsu Province, Yangzhou, Jiangsu 225001, P.R. China
| | - Yanwen Yao
- Department of Respiratory Medicine, Nanjing General Hospital of Nanjing Military Area Command, Nanjing, Jiangsu 210002, P.R. China
| | - Yu Zhang
- Department of Respiratory Medicine, Nanjing Chest Hospital, Medical School of Southeast University, Nanjing, Jiangsu 210029, P.R. China
| | - Han Han-Zhang
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Junyi Ye
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Lu Zhang
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Xinru Mao
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Zhe Zhang
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Jing Liu
- Burning Rock Biotech, Guangzhou, Guangdong 510300, P.R. China
| | - Liangjun Zhu
- Department of Internal Medicine, Jiangsu Cancer Hospital, Nanjing, Jiangsu 210009, P.R. China
| | - Renhua Guo
- Department of Medical Oncology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, Jiangsu 210029, P.R. China
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21
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Wu Z, Yang Z, Dai Y, Zhu Q, Chen LA. Update on liquid biopsy in clinical management of non-small cell lung cancer. Onco Targets Ther 2019; 12:5097-5109. [PMID: 31303765 PMCID: PMC6611714 DOI: 10.2147/ott.s203070] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 05/14/2019] [Indexed: 12/18/2022] Open
Abstract
Lung cancer, a leading cause of cancer-related mortality, has a low rate of early diagnosis and a poor prognosis for advanced stages. Recent advances in further mastery of the biology of tumors promote the diagnosis and therapy, especially for non-small cell lung cancer (NSCLC). However, tumor tissue-based information is often not available in most cases due to the invasive and high risk nature of the tumor biopsy procedures. Liquid biopsy, based on the multiple liquid samples including circulating tumor cells (CTC), circulating tumor DNA (ctDNA), and tumor-derived exosome obtained from blood or urine as well as other body fluids, can also provide valuable tumor-related information, playing an important role in management of NSCLC in clinical practice. It is widely believed that concordance of detection for tumor by liquid samples in comparison with tissue biopsy for both early and advanced stage NSCLC patients is optimistic. We herein review the current and future clinical application of liquid biopsy, including early diagnosis and management of precise personalized treatment in lung cancer. The future directions of development for liquid biopsy are also discussed in this review.
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Affiliation(s)
- Zhen Wu
- Respiratory Department, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Zhen Yang
- Respiratory Department, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Yu Dai
- Respiratory Department, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Qiang Zhu
- Respiratory Department, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Liang-An Chen
- Respiratory Department, Chinese PLA General Hospital, Beijing, People's Republic of China
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22
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Otsubo K, Sakai K, Takeshita M, Harada D, Azuma K, Ota K, Akamatsu H, Goto K, Horiike A, Kurata T, Nakagaki N, Nosaki K, Iwama E, Nakanishi Y, Nishio K, Okamoto I. Genetic Profiling of Non-Small Cell Lung Cancer at Development of Resistance to First- or Second-Generation EGFR-TKIs by CAPP-Seq Analysis of Circulating Tumor DNA. Oncologist 2019; 24:1022-1026. [PMID: 31023862 DOI: 10.1634/theoncologist.2019-0101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/28/2019] [Indexed: 01/16/2023] Open
Abstract
Patients with non-small cell lung cancer (NSCLC) treated with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) eventually acquire resistance to these drugs. The identification of various resistance mechanisms for determination of subsequent treatment for these patients will require a method for simultaneous detection of multiple genetic alterations with high sensitivity. We performed cancer personalized profiling by deep sequencing (CAPP-Seq) with circulating tumor DNA obtained from patients with NSCLC who acquired resistance to first- or second-generation EGFR-TKIs. Plasma samples from 27 patients were analyzed, and 24 samples underwent CAPP-Seq successfully. Original activating EGFR mutations were detected in 23 patients, with the remaining patient showing MET amplification. With regard to known mechanisms of EGFR-TKI resistance, the T790M mutation of EGFR was detected in 17 of the 24 patients, MET amplification in 9 patients (6 of whom also harbored T790M), ERBB2 amplification in 2 patients (1 of whom also harbored T790M), and EGFR amplification in 4 patients (all of whom harbored T790M). Our results thus show that CAPP-Seq is applicable to clinical samples for the identification of multiple somatic mutations in circulating tumor DNA obtained from patients with NSCLC at the time of disease progression during treatment with first- or second-generation EGFR-TKIs. Patients positive for the T790M mutation of EGFR were also found to constitute a molecularly heterogeneous population. KEY POINTS: CAPP-Seq is applicable to clinical samples for the identification of multiple somatic mutations.The T790M mutation of EGFR is associated with amplification of MET, ERBB2, or EGFR in NSCLC patients resistant to EGFR-TKIs.T790M-positive patients are molecularly heterogeneous, and genetic alterations coexisting with T790M may differ between patients treated with first-generation or second-generation EGFR-TKIs.
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Affiliation(s)
- Kohei Otsubo
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuko Sakai
- Department of Genome Biology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Masafumi Takeshita
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Daijiro Harada
- Department of Thoracic Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Koichi Azuma
- Division of Respirology, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Keiichi Ota
- Division of Respiratory Medicine, National Hospital Organization Fukuoka-Higashi Medical Center, Koga, Fukuoka, Japan
| | - Hiroaki Akamatsu
- Third Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Atsushi Horiike
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takayasu Kurata
- Department of Thoracic Oncology, Kansai Medical University Hospital, Hirakata, Osaka, Japan
| | - Noriaki Nakagaki
- Department of Respiratory Medicine, Steel Memorial Yawata Hospital, Kitakyushu, Japan
| | - Kaname Nosaki
- Department of Thoracic Oncology, National Kyushu Cancer Center, Fukuoka, Japan
| | - Eiji Iwama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Isamu Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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23
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Iwama E, Sakai K, Azuma K, Harada D, Nosaki K, Hotta K, Nishio M, Kurata T, Fukuhara T, Akamatsu H, Goto K, Shimose T, Kishimoto J, Nakanishi Y, Nishio K, Okamoto I. Exploration of resistance mechanisms for epidermal growth factor receptor-tyrosine kinase inhibitors based on plasma analysis by digital polymerase chain reaction and next-generation sequencing. Cancer Sci 2018; 109:3921-3933. [PMID: 30289575 PMCID: PMC6272092 DOI: 10.1111/cas.13820] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/12/2018] [Accepted: 09/24/2018] [Indexed: 12/23/2022] Open
Abstract
Liquid biopsy offers a potential alternative to tissue biopsy for detection of genetic alterations in cancer, and it has been introduced into clinical practice to detect the tyrosine kinase inhibitor (TKI) resistance‐conferring T790M mutation of epidermal growth factor receptor (EGFR) in patients with non‐small‐cell lung cancer (NSCLC). We prospectively collected tumor and plasma samples from 25 NSCLC patients who harbored activating mutations of EGFR and experienced failure of treatment with afatinib. The samples were analyzed by digital PCR (dPCR) and next‐generation sequencing (NGS). T790M was detected in plasma with a respective sensitivity and specificity of 83.3% and 70.0% by dPCR and 50.0% and 70.0% by NGS relative to analysis of corresponding tumor samples. Quantitation of T790M based on the ratio of the number of T790M alleles to that of activating mutation alleles (T/A ratio) improved the specificity of plasma analysis to 100% for both dPCR and NGS without a reduction in sensitivity. Although several afatinib resistance mechanisms other than T790M—including copy number gain of NRAS or MET—were identified in tumor samples, the corresponding genetic alterations were not detected in plasma. TP53 mutations were frequently identified in plasma and tumor samples, with most such mutations also having been detected before afatinib treatment. The presence of de novo TP53 mutations was associated with reduced progression‐free survival. Quantitation of T790M in plasma is thus a clinically relevant approach to determine the T790M status of tumors. In addition, genetic alterations coexisting with EGFR mutations can affect the efficacy of EGFR‐TKI treatment.
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Affiliation(s)
- Eiji Iwama
- Faculty of Medical Sciences, Department of Comprehensive Clinical Oncology, Kyushu University, Fukuoka, Japan.,Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuko Sakai
- Department of Genome Biology, Faculty of Medicine, Kinki University, Osaka-Sayama, Japan
| | - Koichi Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Daijiro Harada
- Department of Thoracic Oncology, NHO Shikoku Cancer Center, Matsuyama, Japan
| | - Kaname Nosaki
- Department of Thoracic Oncology, National Kyushu Cancer Center, Fukuoka, Japan
| | - Katsuyuki Hotta
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Makoto Nishio
- Department of Thoracic Medical Oncology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takayasu Kurata
- Department of Thoracic Oncology, Kansai Medical University Hospital, Osaka, Japan
| | - Tatsuro Fukuhara
- Department of Respiratory Medicine, Miyagi Cancer Center, Natori, Japan
| | - Hiroaki Akamatsu
- Third Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | | | - Junji Kishimoto
- Department of Research and Development of Next Generation Medicine, Kyushu University, Fukuoka, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Faculty of Medicine, Kinki University, Osaka-Sayama, Japan
| | - Isamu Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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