1
|
Kuo YJ, Lewis JS, Zhai C, Chen YA, Chernock RD, Hsieh MS, Lan MY, Lee CK, Weinreb I, Hang JF. DEK-AFF2 fusion-associated papillary squamous cell carcinoma of the sinonasal tract: clinicopathologic characterization of seven cases with deceptively bland morphology. Mod Pathol 2021; 34:1820-1830. [PMID: 34108636 DOI: 10.1038/s41379-021-00846-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/24/2022]
Abstract
A novel DEK-AFF2 fusion has been recently identified in four cases of basaloid to nonkeratinizing squamous cell carcinoma (SCC) in the sinonasal tract and middle ear with high-grade morphology. The exceptional response to immune checkpoint inhibitor in the first reported case highlights the potential clinical importance of identifying tumors with DEK-AFF2 fusions. We herein reported the first series of seven cases of DEK-AFF2 fusion-associated sinonasal SCC with deceptively bland morphology, including four cases of low-grade papillary Schneiderian carcinoma, which is a recently described tumor type with unknown molecular underpinnings. The DEK gene rearrangement was confirmed by DEK break-apart fluorescence in situ hybridization and DEK-AFF2 fusion transcripts were detected by reverse transcription polymerase chain reaction. In contrast to the previously reported DEK-AFF2 fusion-positive high-grade carcinomas, these tumors had a monotonous and bland morphology and were all initially diagnosed as sinonasal papilloma (SP) of various types, with or without dysplasia or carcinoma in situ. The tumor was characterized by mixed exophytic and inverted patterns, broad papillary fronds, acantholytic change, cellular monotony, dense neutrophilic infiltrates, and peripheral palisading. All tumors were diffusely positive for p40 or p63 and negative for NUT and p16. Molecular drivers associated with SP, including EGFR and KRAS mutations and both high and low-risk human papillomavirus infection, were negative in all cases. Although there was no overt stromal invasion or desmoplastic reaction in the initial specimens, these tumors tended to progress locoregionally through a prolonged clinical course and occasionally develop lymph node metastases, high-grade transformation, or extensively local destruction eventually leading to death. These justify more aggressive clinical management. Therefore, we propose the new terminology "DEK-AFF2 fusion-associated papillary SCC of the sinonasal tract" to better describe this clinicopathologically and molecularly distinct entity.
Collapse
Affiliation(s)
- Ying-Ju Kuo
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - James S Lewis
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Otolaryngology - Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Changwen Zhai
- Department of Pathology, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Yun-An Chen
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Rebecca D Chernock
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, MO, USA
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Pathology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ming-Ying Lan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chien-Kuan Lee
- Department of Pathology, Kuang Tien General Hospital, Taichung, Taiwan
| | - Ilan Weinreb
- Laboratory Medicine Program, University Health Network, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Jen-Fan Hang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| |
Collapse
|
2
|
Uchibori K, Takano N, Manabe R, Tsugitomi R, Ogusu S, Tozuka T, Sakamoto H, Yoshida H, Amino Y, Ariyasu R, Kitazono S, Yanagitani N, Nishio M. Clinical influence of switching companion diagnostic tests for EGFR-TKs from Therascreen to Cobas v2. Thorac Cancer 2021; 12:906-913. [PMID: 33528892 PMCID: PMC7952781 DOI: 10.1111/1759-7714.13797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022] Open
Abstract
Background Several companion diagnostic (CDx) tests for epidermal growth factor receptor tyrosine kinase inhibitors (EGFR‐TKIs) have been approved. In our institute, the CDx test for EGFR‐TKIs was changed from the Therascreen test (Therascreen) to the Cobas EGFR v2 test (Cobas) because only Cobas was approved for the use of osimertinib in patients with EGFR‐mutated non‐small cell lung cancer (NSCLC) with T790M mutations. The clinical influence of switching the CDx test has not yet been examined comprehensively. Methods All serial patients with lung cancer tested for EGFR mutations with CDx tests between February 2014 and February 2016 at the Cancer Institute Hospital of the Japanese Foundation for Cancer Research (JFCR) were enrolled in this analysis. Results Therascreen was used as a CDx test for EGFR‐TKI therapy in 607 patients between February 2014 and January 2015, and Cobas was used in 621 patients between February 2015 and February 2016. EGFR mutations were detected in 218 patients (35.9%) and 244 patients (39.3%) tested with Therascreen and Cobas, respectively. At the initial diagnosis, 400 and 459 patients were tested with Therascreen and Cobas, respectively. EGFR mutation subtypes, including del19, L858R, and others, were detected in 13.0%, 17.0%, and 2.5% of patients using Therascreen and 17.4%, 14.4%, and 1.5% of patients using Cobas, respectively. Conclusions No significant impact of switching from Therascreen to Cobas as the CDx test for EGFR mutations in clinical practice was observed. However, the detection pattern of the EGFR mutation subtypes between the two CDx tests was slightly different. Key points Significant findings of the study We examined the influence of changing the EGFR test in 1228 patients in total. The detection rate of EGFR mutations was similar. However, the detection pattern for EGFR subtype mutations was slightly different between the two tests. What this study adds Switching CDx tests from target polymerase chain reaction (PCR)‐ to next‐generation sequencing (NGS)‐based methods may lead to obvious changes in clinical practice. When the CDx test is required to change, the investigation of this influence is warranted in future studies.
Collapse
Affiliation(s)
- Ken Uchibori
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Natsuki Takano
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Ryo Manabe
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ryosuke Tsugitomi
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shinsuke Ogusu
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takehiro Tozuka
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiroaki Sakamoto
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiroshi Yoshida
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshiaki Amino
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ryo Ariyasu
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Satoru Kitazono
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Noriko Yanagitani
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Makoto Nishio
- Department of Thoracic Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| |
Collapse
|
3
|
Miyashita Y, Ko R, Shimada N, Mitsuishi Y, Miura K, Matsumoto N, Asao T, Shukuya T, Shibayama R, Koyama R, Takahashi K. Impact of the generation of EGFR-TKIs administered as prior therapy on the efficacy of osimertinib in patients with non-small cell lung cancer harboring EGFR T790M mutation. Thorac Cancer 2020; 12:329-338. [PMID: 33219754 PMCID: PMC7862784 DOI: 10.1111/1759-7714.13742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 11/28/2022] Open
Abstract
Background There are few studies that directly compare the effects of osimertinib on patients with non‐small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) T790M mutation between the generation of prior EGFR tyrosine kinase inhibitors (TKIs). Methods We retrospectively reviewed clinical data from the medical records of consecutive patients with advanced NSCLC who had developed resistance to first‐ or second‐generation EGFR‐TKIs due to EGFR T790M mutation and were subsequently treated with osimertinib at Juntendo University Hospital. In patients with available tumor samples, target amplicon sequencing analyses were performed to explore the genetic biomarkers. Results A total of 38 patients with NSCLC harboring EGFR T790M mutation were treated with osimertinib. Eight patients were classified into group A (afatinib followed by osimertinib) and 30 patients were classified into group B (first‐generation EGFR‐TKI followed by osimertinib). Progression‐free survival (PFS) was significantly longer in group A than in group B (median PFS; not reached vs. 11.0 months, P = 0.018). Fourteen patients had available tissue samples collected before osimertinib treatment for target sequencing. In group A we found no additional mutations, other than EGFR T790M mutation. On the other hand, there were three samples in which other mutations emerged, in addition to EGFR T790M mutation, in group B. Conclusions PFS of osimertinib was significantly longer in patients with NSCLC harboring EGFR T790M mutation after treatment with afatinib than in patients after treatment with first generation EGFR‐TKIs. Additional mutations other than EGFR T790M may affect the efficacy of osimertinib treatment. Key points Significant findings of the study: PFS of osimertinib was significantly longer in patients with NSCLC harboring EGFR T790M mutation after treatment with afatinib than in patients after treatment with first generation EGFR‐TKIs. What this study adds: Additional mutations other than EGFR T790M may affect the efficacy of osimertinib treatment.
Collapse
Affiliation(s)
- Yosuke Miyashita
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ryo Ko
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naoko Shimada
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoichiro Mitsuishi
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Keita Miura
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naohisa Matsumoto
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tetsuhiko Asao
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takehito Shukuya
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Rina Shibayama
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ryo Koyama
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kazuhisa Takahashi
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| |
Collapse
|
4
|
Wu SG, Yu CJ, Yang JCH, Shih JY. The effectiveness of afatinib in patients with lung adenocarcinoma harboring complex epidermal growth factor receptor mutation. Ther Adv Med Oncol 2020; 12:1758835920946156. [PMID: 32843903 PMCID: PMC7418472 DOI: 10.1177/1758835920946156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022] Open
Abstract
Background and aims: Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs) are effective against classical EGFR mutations in lung cancer. However, their effectiveness and the prognosis of lung cancer patients with complex EGFR mutations are not well delineated. Therefore, we aimed to investigate the treatment effectiveness of different EGFR TKIs in patients with complex EGFR mutations. Patients and methods: From 2005 to 2020, we collected lung adenocarcinoma tissue samples for EGFR mutation analysis using direct Sanger sequencing. Patients with EGFR mutations treated with EGFR TKIs as first-line treatment were enrolled. Clinical characteristics, EGFR mutation status, treatment response, progression-free survival (PFS), and overall survival (OS) were analyzed. Results: Among 2675 patients with EGFR mutations, 239 (8.9%) had complex EGFR mutations, of whom 125 received EGFR TKI treatment as first-line treatment. Multivariate analysis revealed that afatinib was a more favorable factor for PFS than gefitinib [hazard ratio (HR), 2.01; 95% confidence interval (CI), 1.11–3.62] and erlotinib (HR, 2.61; 95% CI, 1.31–5.22), especially in patients with uncommon mutation patterns. Afatinib treatment as first-line treatment was also associated with longer OS compared with erlotinib (HR, 2.48; 95% CI, 1.20–5.12). Classical mutation pattern was associated with longer PFS (p = 0.001) and OS (p = 0.020). Secondary T790M was detected in 22 of 52 (42.3%) patients who had re-biopsied tissue samples after acquiring resistance to EGFR TKIs. There was no significant difference in secondary T790M formation after acquired resistance to the three EGFR TKIs (p = 0.261). Furthermore, three (5.8%) patients had small-cell lung cancer transformation. Conclusion: Afatinib is an effective first-line treatment for patients with lung adenocarcinoma harboring complex EGFR mutations, especially those with uncommon mutation patterns.
Collapse
Affiliation(s)
- Shang-Gin Wu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - James Chih-Hsin Yang
- Department of Oncology, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei
| | - Jin-Yuan Shih
- Department of Internal Medicine, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei 100
| |
Collapse
|
5
|
Ho HL, Huang CC, Ku WH, Ho CL, Lin CH, Yu SL, Chou TY. Liquid biopsy for detection of EGFR T790M mutation in nonsmall cell lung cancer: An experience of proficiency testing in Taiwan. J Chin Med Assoc 2019; 82:473-476. [PMID: 30932938 DOI: 10.1097/jcma.0000000000000100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The use of liquid biopsy to detect epidermal growth factor receptor (EGFR) T790M mutation in nonsmall cell lung cancer (NSCLC) is a promising method to screen patients eligible for third-generation EGFR inhibitors. Proficiency testing (PT) programs involving liquid biopsy are currently lacking. In this study, we conducted a PT program to assess the quality assurance of liquid biopsy tests for detecting EGFR T790M mutation in molecular pathology laboratories in Taiwan. METHODS Whole blood samples (2 mL) with various concentrations of the EGFR T790M mutation were prepared and analyzed in six participating laboratories using their clinically validated assays. RESULTS For circulating cell-free DNA (cfDNA) isolation, three of the six participating laboratories used the cobas cfDNA Sample Preparation Kit, and three used the QIAamp Circulating Nucleic Acid Kit. For testing platforms, two of the six participating laboratories used mass spectrometry, three used the cobas EGFR mutation test, and one used a laboratory-developed test. There was 100% concordance in detection of all the given concentrations of EGFR T790M mutation between the participating laboratories and different testing platforms. The testing platforms used by all participating laboratories could successfully detect EGFR T790M mutation to an expected frequency of 1%. CONCLUSION In this first PT program using liquid biopsy in Taiwan, local clinical laboratories were suitably equipped and proficient in the use of cfDNA to test for the EGFR T790M mutation. Establishing a routine PT system to ensure the reliability and accuracy of liquid biopsy in clinical practice in Taiwan would be helpful.
Collapse
Affiliation(s)
- Hsiang-Ling Ho
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chao-Cheng Huang
- Department of Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, ROC
| | - Wen-Hui Ku
- Department of Clinical Pathology, Taipei Institute of Pathology, Taipei, Taiwan, ROC
| | - Chung-Liang Ho
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Chia-Hung Lin
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Sung-Liang Yu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan, ROC
| | - Teh-Ying Chou
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| |
Collapse
|
6
|
Liang S, Xu Y, Tan F, Ding L, Ma Y, Wang M. Efficacy of icotinib in advanced lung squamous cell carcinoma. Cancer Med 2018; 7:4456-4466. [PMID: 30109777 PMCID: PMC6143949 DOI: 10.1002/cam4.1736] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 07/21/2018] [Accepted: 07/24/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND There are controversial data supporting the efficacy of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) in patients with advanced lung squamous cell carcinoma (SCC). In this study, the efficacy of icotinib in unselected and EGFR-mutated patients with lung SCC was assessed. METHODS We retrospectively analyzed the survival time of unselected advanced lung SCC patients treated with icotinib for at least 5 months between June 2013 and June 2016, and selected appropriate EGFR-mutated advanced lung ADC patients to have 1:1 ratio of propensity score matching with EGFR-mutated advanced lung SCC patients, and matching factors were age, sex, clinical stage, Karnofsky performance status (KPS), smoking history, EGFR mutation type, and treatment lines. RESULTS A total of 487 unselected advanced lung SCC patients were available for analysis of icotinib treatment efficacy. The progression-free survival (PFS) was 13.0 months (95% CI 12.2-13.8), the overall survival (OS) was 16.0 months (95% CI 14.7-17.3), and the objective response rate (ORR) was 41.3%. After propensity score matching, 78 EGFR-mutated lung SCC and 78 EGFR-mutated lung ADC patients were selected and compared. Although no statistical difference was found, ADC patients were associated with a longer PFS (15.8 months vs 12.7 months, P = 0.275) and OS (24.2 months vs 18.5 months, P = 0.150), and a better ORR (59.0% vs 48.7%, P = 0.199) than compared with SCC patients when treated with icotinib. CONCLUSION Icotinib has a modest therapeutic effect in patients with advanced lung SCC, especially for the population with EGFR mutations.
Collapse
Affiliation(s)
- Shuai Liang
- Division of Respiratory MedicinePeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Yan Xu
- Division of Respiratory MedicinePeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| | - Fenlai Tan
- Zhejiang Betta PharmaceuticalsHangzhouChina
| | | | - Yongbin Ma
- Zhejiang Betta PharmaceuticalsHangzhouChina
| | - Mengzhao Wang
- Division of Respiratory MedicinePeking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
| |
Collapse
|
7
|
Lee TF, Tseng YC, Chang WC, Chen YC, Kao YR, Chou TY, Ho CC, Wu CW. YAP1 is essential for tumor growth and is a potential therapeutic target for EGFR-dependent lung adenocarcinomas. Oncotarget 2017; 8:89539-89551. [PMID: 29163769 PMCID: PMC5685690 DOI: 10.18632/oncotarget.19647] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/20/2017] [Indexed: 12/14/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) mutations are found in lung adenocarcinomas leading to tumor cells proliferation and survival. EGFR tyrosine kinase inhibitors (TKIs) that block EGFR activity are effective therapeutics for EGFR-mutant lung adenocarcinoma patients, but TKI-resistance inevitably occurs. The YES-associated protein (YAP1) transcription coactivator has been implicated as an oncogene and is amplified in human cancers and provides tumor cells strong proliferation and survival cues. This study investigated the roles of YAP1 in lung adenocarcinoma by exploring its regulation and functions mediated by EGFR signaling. In this study, we detected a correlation between YAP1 level and EGFR mutation status in lung adenocarcinoma tissues. Using lung adenocarcinoma cell lines, enhanced YAP1 expression and activity mediated by EGFR signaling was detected through enhanced protein stability. A SRC family protein, YES, was involved in EGFR-regulated YAP1 expression and this pathway was crucial for proliferation in EGFR-dependent cells. Small molecules that reduced YAP1 levels by mechanisms bypassing EGFR signaling were effective in reducing viability in EGFR-dependent cells including those with EGFR T790M, the major cause of TKI-resistance. These observations unveiled the significance of YAP1 in EGFR mutant lung adenocarcinomas and identified YAP1 as a promising therapeutic target for EGFR-dependent lung adenocarcinoma patients, including those with EGFR T790M-caused TKI resistance.
Collapse
Affiliation(s)
- Ting-Fang Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Chi Tseng
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Wei-Chin Chang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Pathology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yi-Chen Chen
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Rung Kao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Teh-Ying Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chao-Chi Ho
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan
| | - Cheng-Wen Wu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| |
Collapse
|
8
|
Hitij NT, Kern I, Sadikov A, Knez L, Stanič K, Zwitter M, Cufer T. Immunohistochemistry for EGFR Mutation Detection in Non-Small-Cell Lung Cancer. Clin Lung Cancer 2016; 18:e187-e196. [PMID: 28089159 DOI: 10.1016/j.cllc.2016.11.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/09/2016] [Accepted: 11/22/2016] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The sensitivity and specificity of immunohistochemistry (IHC) was compared with the standard polymerase chain reaction (PCR)-based method for detecting common activating epidermal growth factor receptor (EGFR) mutations in non-small-cell lung cancer (NSCLC). Additionally, we evaluated predictive value of IHC EGFR mutation-positive status for EGFR tyrosine kinase inhibitor (TKI) treatment outcome and estimated cost-effectiveness for the upfront IHC testing. METHODS The trial included 79 consecutive EGFR mutation-positive and 29 EGFR mutation-negative NSCLC cases diagnosed with reflex PCR-based testing. Two mutation-specific antibodies against the most common exon 19 deletion, namely E746-A750del (clone SP111) and L858R mutation (clone SP125) were tested by using automated immunostainer. Sixty of 79 EGFR mutation-positive cases were treated with EGFR TKIs for advanced disease and included in treatment outcome analysis. A decision tree was used for the cost-effectiveness analysis. RESULTS The overall sensitivity and specificity of the IHC-based method compared with the PCR-based method were 84.8% (95% confidence interval [CI] 74.6-91.6) and 100% (95% CI 85.4-100), respectively. The median progression-free survival (PFS) and overall survival (OS) of patients with IHC-positive EGFR mutation status were highly comparable to the total cohort (PFS: 14.3 vs. 14.0 months; OS: 34.4 vs. 34.4 months). The PCR and IHC cost ratio needs to be approximately 8-to-1 and 4-to-1 in White and Asian populations, respectively, to economically justify upfront use of IHC. CONCLUSION The trial confirmed an excellent specificity with fairly good sensitivity of IHC with mutation-specific antibodies for common EGFR mutations and the accuracy of IHC testing for predicting response to EGFR TKIs. The use of upfront IHC depends mainly on the population EGFR mutation positivity probability.
Collapse
Affiliation(s)
| | | | - Aleksander Sadikov
- Faculty of Computer and Information Science, University of Ljubljana, Ljubljana, Slovenia
| | - Lea Knez
- University Clinic Golnik, Golnik, Slovenia
| | | | | | - Tanja Cufer
- University Clinic Golnik, Golnik, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| |
Collapse
|
9
|
Feng X, Liu C, Zhong D, Xu D, Ning C, Wang J. [Influence of Immunohistochemistry Scoring Criteria in Detecting EGFR Mutations]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2016; 18:740-4. [PMID: 26706950 PMCID: PMC6015181 DOI: 10.3779/j.issn.1009-3419.2015.12.05] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
背景与目的 恰当的免疫组化染色评分可确保突变检测结果的可靠性,目前大多数研究认为“四分法”是所有评分系统中最佳的方法。本研究旨在探讨不同四分法染色评分对检测结果的影响。 方法 用三种不同的四分法免疫组化染色评分标准评价83例非小细胞肺癌标本表皮生长因子受体(epidermal growth factor receptor, EGFR)突变情况,并以液相芯片法作为金标准进行比较,计算每种方法的灵敏度、特异度、阳性预测值(positive predictive value, PPV)、阴性预测值(negative predictive value, NPV)、与金标准间一致度及三种标准间是否存在统计学差异。 结果 三种标准在检测EGFR突变方面不存在统计学差异,每种标准检测结果的特异度均明显优于灵敏度。染色为“3+”的标本,PPV均可高达100%。 结论 不同的四分法评分没有绝对的最佳标准,但无论用何种标准,免疫组化法(immunohistochemistry, IHC)检测EGFR突变的特异度均明显优于灵敏度。评分为“3+”的标本,可认为实际确实存在突变,直接接受EGFR酪氨酸激酶抑制剂(tyrosine kinase inhibitor, TKI)治疗。
Collapse
Affiliation(s)
- Xin Feng
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Chang Liu
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Diansheng Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Dongbo Xu
- Department of Pathology, Tianjin Medical University, Tianjin 300070, China
| | - Chao Ning
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Jie Wang
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| |
Collapse
|
10
|
Kao HL, Yeh YC, Lin CH, Hsu WF, Hsieh WY, Ho HL, Chou TY. Diagnostic algorithm for detection of targetable driver mutations in lung adenocarcinomas: Comprehensive analyses of 205 cases with immunohistochemistry, real-time PCR and fluorescence in situ hybridization methods. Lung Cancer 2016; 101:40-47. [PMID: 27794407 DOI: 10.1016/j.lungcan.2016.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/06/2016] [Accepted: 09/07/2016] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Analysis of the targetable driver mutations is now recommended in all patients with advanced lung adenocarcinoma. Molecular-based methods are usually adopted, however, along with the implementation of highly sensitive and/or mutation-specific antibodies, immunohistochemistry (IHC) has been considered an alternative method for identifying driver mutations in lung adenocarcinomas. MATERIALS AND METHODS A total of 205 lung adenocarcinomas were examined for EGFR mutations and ALK and ROS1 rearrangements using real-time PCR, fluorescence in situ hybridization (FISH) and IHC in parallel. The performance of different commercially available IHC antibody clones toward targetable driver mutations was evaluated. The association between these driver mutations and clinicopathological characteristics was also analyzed. RESULTS In 205 cases we studied, 58.5% were found to harbor EGFR mutations, 6.3% ALK rearrangements and 1.0% ROS1 rearrangements. Compared to molecular-based methods, IHC of EGFR mutations showed an excellent specificity but the sensitivity is suboptimal, while IHC of ALK and ROS1 rearrangements demonstrated high sensitivity and specificity. No significant difference regarding the performance of different antibody clones toward these driver mutations was observed, except that clone SP125 showed a higher sensitivity than 43B2 in the detection of p.L858R of EGFR. CONCLUSION In circumstances such as poor quality of nucleic acids or low content of tumor cells, IHC of EGFR mutation-specific antibodies could be used as an alternative method. Patients negative for EGFR mutations are subjected to further analysis on ALK and ROS1 rearrangements using IHC methods. Herein, we proposed a lung adenocarcinoma testing algorithm for the application of IHC in therapeutic diagnosis.
Collapse
Affiliation(s)
- Hua-Lin Kao
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Pathology and Laboratory Medicine, Cathay General Hospital, Taipei, Taiwan
| | - Yi-Chen Yeh
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chin-Hsuan Lin
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Pathology, Taichung Cheng-Ching Hospital, Taichung, Taiwan
| | - Wei-Fang Hsu
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wen-Yu Hsieh
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsiang-Ling Ho
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Teh-Ying Chou
- Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
| |
Collapse
|
11
|
Ragazzi M, Tamagnini I, Bisagni A, Cavazza A, Pagano M, Baldi L, Boni C, Cantile F, Barbieri F, Nicoli D, Sartori G, de Biase D, Gardini G, Rossi G. Diamond: immunohistochemistry versus sequencing in EGFR analysis of lung adenocarcinomas. J Clin Pathol 2016; 69:440-7. [PMID: 26553934 DOI: 10.1136/jclinpath-2015-203348] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/18/2015] [Indexed: 02/05/2023]
Abstract
AIMS Identification of epidermal growth factor receptor (EGFR) mutations in lung adenocarcinomas is the single most important predictor of clinical response and outcome using EGFR tyrosine kinase inhibitors (TKIs). EGFR E746-A750del and L858R mutations are the most common gene alterations, also predicting the best clinical response to TKIs. We evaluated the accuracy of EGFR mutation-specific antibodies in a large cohort of lung adenocarcinomas, with different molecular settings and types of tissue samples. METHODS 300 lung adenocarcinomas diagnosed on cytology (48 cell blocks), biopsy (157 cases) and surgical resections (95 cases) were selected. All cases were investigated for EGFR by sequencing and two mutation-specific antibodies (clone 6B6 for E746-A750del; clone 43B2 for L858R) were tested using an automated immunostainer. Discordant results were investigated by next-generation sequencing (NGS). RESULTS Overall sensitivity and specificity of mutant-specific antibodies were 58.6% and 98.0%, respectively, and they increased up to 84% and 100% if only tumours harbouring E746-A750del were considered. In 13 discordant cases, NGS confirmed immunohistochemistry results in eight samples. CONCLUSIONS The EGFR mutation-specific antibodies have a fair/good sensitivity and good/high specificity in identifying classic mutations, but they cannot replace molecular tests. The antibodies work equally well on biopsies and cell blocks, possibly permitting a rapid screening in cases with poor material.
Collapse
Affiliation(s)
- Moira Ragazzi
- Department of Oncology and Advanced Technologies, Operative Unit of Pathology, Azienda S Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Ione Tamagnini
- Department of Oncology and Advanced Technologies, Operative Unit of Pathology, Azienda S Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Alessandra Bisagni
- Department of Oncology and Advanced Technologies, Operative Unit of Pathology, Azienda S Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Alberto Cavazza
- Department of Oncology and Advanced Technologies, Operative Unit of Pathology, Azienda S Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Maria Pagano
- Department of Oncology and Advanced Technologies, Operative Unit of Oncology, Azienda S. Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Licia Baldi
- Department of Oncology and Advanced Technologies, Operative Unit of Oncology, Azienda S. Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Corrado Boni
- Department of Oncology and Advanced Technologies, Operative Unit of Oncology, Azienda S. Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Flavia Cantile
- Department of Oncology and Hematology, Division of Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Fausto Barbieri
- Department of Oncology and Hematology, Division of Oncology, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| | - Davide Nicoli
- Department of Oncology and Advanced Technologies, Operative Unit of Molecular Biology, Azienda S. Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Giuliana Sartori
- Department of Oncology and Advanced Technologies, Cervical Screening Unit, Azienda S. Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Dario de Biase
- Department of Medicine (DIMES), Anatomic Pathology Unit, Bellaria Hospital, University of Bologna, Bologna, Italy
| | - Giorgio Gardini
- Department of Oncology and Advanced Technologies, Operative Unit of Pathology, Azienda S Maria Nuova - IRCCS, Reggio Emilia, Italy
| | - Giulio Rossi
- Integrated Department of Diagnostic Laboratories, Section of Pathologic Anatomy, Azienda Ospedaliero-Universitaria Policlinico, Modena, Italy
| |
Collapse
|
12
|
Xu Q, Zhu Y, Bai Y, Wei X, Zheng X, Mao M, Zheng G. Detection of epidermal growth factor receptor mutation in lung cancer by droplet digital polymerase chain reaction. Onco Targets Ther 2015; 8:1533-41. [PMID: 26124670 PMCID: PMC4482376 DOI: 10.2147/ott.s84938] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Two types of epidermal growth factor receptor (EGFR) mutations in exon 19 and exon 21 (ex19del and L858R) are prevalent in lung cancer patients and sensitive to targeted EGFR inhibition. A resistance mutation in exon 20 (T790M) has been found to accompany drug treatment when patients relapse. These three mutations are valuable companion diagnostic biomarkers for guiding personalized treatment. Quantitative polymerase chain reaction (qPCR)-based methods have been widely used in the clinic by physicians to guide treatment decisions. The aim of this study was to evaluate the technical and clinical sensitivity and specificity of the droplet digital polymerase chain reaction (ddPCR) method in detecting the three EGFR mutations in patients with lung cancer. Methods Genomic DNA from H1975 and PC-9 cells, as well as 92 normal human blood specimens, was used to determine the technical sensitivity and specificity of the ddPCR assays. Genomic DNA of formalin-fixed, paraffin-embedded specimens from 78 Chinese patients with lung adenocarcinoma were assayed using both qPCR and ddPCR. Results The three ddPCR assays had a limit of detection of 0.02% and a wide dynamic range from 1 to 20,000 copies measurement. The L858R and ex19del assays had a 0% background level in the technical and clinical settings. The T790M assay appeared to have a 0.03% technical background. The ddPCR assays were robust for correct determination of EGFR mutation status in patients, and the dynamic range appeared to be better than qPCR methods. The ddPCR assay for T790M could detect patient samples that the qPCR method failed to detect. About 49% of this patient cohort had EGFR mutations (L858R, 15.4%; ex19del, 29.5%; T790M, 6.4%). Two patients with the ex19del mutation also had a naïve T790M mutation. Conclusion These data suggest that the ddPCR method could be useful in the personalized treatment of patients with lung cancer.
Collapse
Affiliation(s)
- Qing Xu
- Translational Bioscience and Diagnostics, WuXi AppTec, Shanghai, People's Republic of China
| | - Yazhen Zhu
- Department of Pathology, Guangdong Provincial Hospital of TCM, Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, People's Republic of China
| | - Yali Bai
- Translational Bioscience and Diagnostics, WuXi AppTec, Shanghai, People's Republic of China
| | - Xiumin Wei
- Translational Bioscience and Diagnostics, WuXi AppTec, Shanghai, People's Republic of China
| | - Xirun Zheng
- Department of Pathology, Guangdong Provincial Hospital of TCM, Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, People's Republic of China
| | - Mao Mao
- Translational Bioscience and Diagnostics, WuXi AppTec, Shanghai, People's Republic of China
| | - Guangjuan Zheng
- Department of Pathology, Guangdong Provincial Hospital of TCM, Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, People's Republic of China
| |
Collapse
|
13
|
Wang F, Fang P, Hou DY, Leng ZJ, Cao LJ. Comparison of epidermal growth factor receptor mutations between primary tumors and lymph nodes in non-small cell lung cancer: a review and meta-analysis of published data. Asian Pac J Cancer Prev 2015; 15:4493-7. [PMID: 24969875 DOI: 10.7314/apjcp.2014.15.11.4493] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer (NSCLC) can predict the clinical response to tyrosine kinase inhibitor (TKI) therapy. However, EGFR mutations may be different in primary tumors (PT) and metastatic lymph nodes (MLN). The aim of this study was to compare EGFR mutations between PT and the corresponding MLN in NSCLC patients, and provide some guidelines for clinical treatment using TKI therapy. MATERIALS AND METHODS A systematic review and meta-analysis was performed with several research databases. Relative risk (RR) with the 95% confidence interval (CI) were used to investigate the EGFR mutation status between PT and the corresponding MLN. A random-effects model was used. RESULTS 9 publications involving 707 patients were included in the analysis. It was found that activation of EGFR mutations identified in PT and the corresponding MLN was 26.4% (187/707) and 19.9% (141/707), respectively. The overall discordance rate in our meta-analysis was 12.2% (86/707). The relative risk (RR) for EGFR mutation in PT relative to MLN was 1.33 (95%CI: 1.10-1.60; random-effects model). There was no significant heterogeneity between the studies (I2=5%, p=0.003). CONCLUSIONS There exists a considerable degree of EGFR mutation discrepancy in NSCLC between PT and corresponding MLN, suggesting that tumor heterogeneity might arise at the molecular level during the process of metastasis.
Collapse
Affiliation(s)
- Feng Wang
- Department of Respiratory Disease, Tongling People's Hospital, Tongling, China E-mail :
| | | | | | | | | |
Collapse
|
14
|
Wei F, Lin CC, Joon A, Feng Z, Troche G, Lira ME, Chia D, Mao M, Ho CL, Su WC, Wong DTW. Noninvasive saliva-based EGFR gene mutation detection in patients with lung cancer. Am J Respir Crit Care Med 2015; 190:1117-26. [PMID: 25317990 DOI: 10.1164/rccm.201406-1003oc] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
RATIONALE Constitutive activation of the epidermal growth factor receptor (EGFR) is prevalent in epithelial cancers, particularly in non-small cell lung carcinoma (NSCLC). Mutations identified in EGFR predict the sensitivity to EGFR-targeted therapy. Detection of these mutations is mainly based on tissue biopsy, which is invasive, expensive, and time consuming. OBJECTIVES Noninvasive, real-time, inexpensive detection and monitoring of EGFR mutations in patients with NSCLC is highly desirable. METHODS We developed a novel core technology, electric field-induced release and measurement (EFIRM), which relies on a multiplexible electrochemical sensor that can detect EGFR mutations directly in bodily fluids. MEASUREMENTS AND MAIN RESULTS We established EFIRM for the detection of the EGFR mutations in vitro and correlated the results with tumor size from xenografted mice. In clinical application, we demonstrated that EFIRM could detect EGFR mutations in the saliva and plasma of 22 patients with NSCLC. Finally, a blinded test was performed on saliva samples from 40 patients with NSCLC. The receiver operating characteristic analysis indicated that EFIRM detected the exon 19 deletion with an area under the curve of 0.94 and the L858R mutation with an area under the curve of 0.96. CONCLUSIONS Our data indicate that EFIRM is effective, accurate, rapid, user-friendly, and cost effective for the detection of EGFR mutations in the saliva of patients with NSCLC. We termed this saliva-based EGFR mutation detection (SABER).
Collapse
|
15
|
Ameratunga M, Pavlakis N, Gebski V, Broad A, Khasraw M. Epidermal growth factor receptor-tyrosine kinase inhibitors in advanced squamous cell carcinoma of the lung: A meta-analysis. Asia Pac J Clin Oncol 2014; 10:273-8. [DOI: 10.1111/ajco.12231] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Malaka Ameratunga
- Andrew Love Cancer Centre; Barwon Health; Geelong Victoria Australia
| | - Nick Pavlakis
- Royal North Shore Hospital; Sydney New South Wales Australia
| | - Val Gebski
- NHMRC Clinical Trials Centre; University of Sydney; Sydney New South Wales Australia
| | - Adam Broad
- Andrew Love Cancer Centre; Barwon Health; Geelong Victoria Australia
| | - Mustafa Khasraw
- Andrew Love Cancer Centre; Barwon Health; Geelong Victoria Australia
- Deakin University; Geelong Victoria Australia
- NHMRC Clinical Trials Centre; University of Sydney; Sydney New South Wales Australia
| |
Collapse
|
16
|
Leung CC, Porcel JM, Takahashi K, Restrepo MI, Lee P, Wainwright C. Year in review 2013: Lung cancer, respiratory infections, tuberculosis, cystic fibrosis, pleural diseases, bronchoscopic intervention and imaging. Respirology 2014; 19:448-60. [PMID: 24708034 DOI: 10.1111/resp.12250] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 12/27/2013] [Indexed: 12/13/2022]
Affiliation(s)
- Chi Chiu Leung
- Tuberculosis and Chest Service, Department of Health, Hong Kong, China
| | | | | | | | | | | |
Collapse
|
17
|
Allo G, Bandarchi B, Yanagawa N, Wang A, Shih W, Xu J, Dalby M, Nitta H, To C, Liu N, Sykes J, Tsao MS. Epidermal growth factor receptor mutation-specific immunohistochemical antibodies in lung adenocarcinoma. Histopathology 2014; 64:826-39. [DOI: 10.1111/his.12331] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 11/18/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Ghassan Allo
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
| | - Bizhan Bandarchi
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
- Department of Pathology; University of California Los Angeles (UCLA); Los Angeles CA USA
| | - Naoki Yanagawa
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Ami Wang
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Warren Shih
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Jing Xu
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | | | | | - Christine To
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Ni Liu
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Jenna Sykes
- Department of Biostatistics; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
| | - Ming S Tsao
- Department of Pathology; Princess Margaret Cancer Centre; University Health Network; Toronto ON Canada
- Department of Laboratory Medicine and Pathobiology; University of Toronto; Toronto ON Canada
| |
Collapse
|
18
|
Gremel G, Grannas K, Sutton LA, Pontén F, Zieba A. In situ Protein Detection for Companion Diagnostics. Front Oncol 2013; 3:271. [PMID: 24199171 PMCID: PMC3814083 DOI: 10.3389/fonc.2013.00271] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 10/17/2013] [Indexed: 01/29/2023] Open
Abstract
The emergence of targeted therapies for cancer has created a need for the development of companion diagnostic tests. Assays developed in recent years are aimed at determining both the effectiveness and safety of specific drugs for a defined group of patients, thus, enabling the more efficient design of clinical trials and also supporting physicians when making treatment-related decisions. Immunohistochemistry (IHC) is a widely accepted method for protein expression analyses in human tissues. Immunohistochemical assays, used to localize and quantitate relative protein expression levels within a morphological context, are frequently used as companion diagnostics during clinical trials and also following drug approval. Herein, we describe established immunochemistry-based methods and their application in routine diagnostics. We also explore the possibility of using IHC to detect specific protein mutations in addition to DNA-based tests. Finally, we review alternative protein binders and proximity ligation assays and discuss their potential to facilitate the development of novel, targeted therapies against cancer.
Collapse
Affiliation(s)
- Gabriela Gremel
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Uppsala University , Uppsala , Sweden
| | | | | | | | | |
Collapse
|