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Chung C, Umoru G. Prognostic and predictive biomarkers with therapeutic targets in nonsmall-cell lung cancer: A 2023 update on current development, evidence, and recommendation. J Oncol Pharm Pract 2024:10781552241242684. [PMID: 38576390 DOI: 10.1177/10781552241242684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
BACKGROUND Since the publication of the original work in 2014, significant progress has been made in the characterization of genomic alterations that drive oncogenic addiction of nonsmall cell lung cancer (NSCLC) and how the immune system can leverage non-oncogenic pathways to modulate therapeutic outcomes. This update evaluates and validates the recent and emerging data for prognostic and predictive biomarkers with therapeutic targets in NSCLC. DATA SOURCES We performed a literature search from January 2015 to October 2023 using the keywords non-small cell lung cancer, clinical practice guidelines, gene mutations, genomic assay, immune cancer therapy, circulating tumor DNA, predictive and prognostic biomarkers, and targeted therapies. STUDY SELECTION AND DATA EXTRACTION We identified, reviewed, and evaluated relevant clinical trials, meta-analyses, seminal articles, and published clinical practice guidelines in the English language. DATA SYNTHESIS Regulatory-approved targeted therapies include those somatic gene alterations of EGFR ("classic" mutations, exon 20 insertion, and rare EGFR mutations), ALK, ROS1, BRAF V600, RET, MET, NTRK, HER2, and KRAS G12C. Data for immunotherapy and circulating tumor DNA in next-generation sequencing are considered emerging, whereas the predictive role for PIK3CA gene mutation is insufficient. CONCLUSIONS Advances in sequencing and other genomic technologies have led to identifying novel oncogenic drivers, novel resistance mechanisms, and co-occurring mutations that characterize NSCLC, creating further therapeutic opportunities. The benefits associated with immunotherapy in the perioperative setting hold initial promise, with their long-term results awaiting.
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Affiliation(s)
- Clement Chung
- Department of Pharmacy, Houston Methodist West Hospital, Houston, TX, USA
| | - Godsfavour Umoru
- Department of Pharmacy, Houston Methodist Hospital, Houston, TX, USA
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Wang Y, Liu Q, Chu C, Li L, Wang Z, Liu Q, Wu G, Wei X, An L, Ma J. Six first-line tyrosine kinase inhibitors reveal novel inhibition potential for the EGFR S768I mutation. Toxicol Appl Pharmacol 2023; 461:116385. [PMID: 36682591 DOI: 10.1016/j.taap.2023.116385] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
Lung cancer, the leading cause of cancer-related mortality, is the most commonly diagnosed cancer. Tyrosine kinase inhibitors (TKIs) are considered a drug-targeted therapy for non-small cell lung cancers (NSCLCs) with epidermal growth factor receptor (EGFR) mutations. However, limited data are available involving the activity of EGFR TKIs against rare EGFR mutations. Here, based on an endogenous EGFR-depleted cell Line H3255 by CRISPR, H3255 cells with rare mutant EGFRS768I and compound mutations EGFRS768I+L858R were tested using cell proliferation assay, cytotoxicity, membrane potential, flow cytometry and Western blot analysis. We conducted cytotoxicity screening of EGFR mutations on six front-line TKIs based on first-, second-, and third-generation TKIs (afatinib, dacomitinib, osimertinib, erlotinib, gefitinib, and icotinib). The results showed that the sensitivity of these mutants containing rare variants EGFRS768I to six front-line TKIs was enriched in the irreversible TKI cytotoxicity assays by determining their change in cytotoxicity, apoptosis, cell proliferation and signal pathway factors. Importantly, the variants harboring EGFRL858R (H3255), EGFRS768I (H3255S768I) and EGFRS768I+L858R (H3255S768I+L858R) were sensitive to six TKIs and induced cytotoxicity through different pathways. Moreover, the compound mutations EGFRS768I+L858R showed more TKI resistance than EGFRS768I mutation and EGFRL858R mutation. We present a comprehensive reference for the sensitivity of EGFRS768I variants to six front-line TKIs. For patients with the EGFR S768I mutation and compound mutations EGFRS768I+L858R, six first-line TKIs appear to be reasonable therapeutic options.
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Affiliation(s)
- Ying Wang
- Department of Anesthesiology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China; The First Affiliated Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Qian Liu
- The First Affiliated Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Chunhong Chu
- School of Pharmacy, Henan University, Kaifeng 475000, China
| | - Lanxin Li
- Translational Medicine Center, Huaihe Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Zhenxing Wang
- Translational Medicine Center, Huaihe Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Qiyu Liu
- The First Affiliated Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Guangyao Wu
- Translational Medicine Center, Huaihe Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Xiangkai Wei
- The First Affiliated Hospital of Henan University, Henan University, Kaifeng 475000, China
| | - Lei An
- Translational Medicine Center, Huaihe Hospital of Henan University, Henan University, Kaifeng 475000, China; Institutes of Traditional Chinese Medicine, Henan University, Kaifeng 475000, Henan, China.
| | - Jiguang Ma
- Department of Anesthesiology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
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VanderLaan PA, Roy-Chowdhuri S, Griffith CC, Weiss VL, Booth CN. Molecular testing of cytology specimens: overview of assay selection with focus on lung, salivary gland, and thyroid testing. J Am Soc Cytopathol 2022; 11:403-414. [PMID: 36184436 PMCID: PMC10225070 DOI: 10.1016/j.jasc.2022.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/22/2022]
Abstract
Ancillary and molecular testing of cytopathology specimens has emerged as a reliable and useful tool to provide diagnostic information and treatment-related biomarker status for the management of cancer patients. The cytology specimens obtained through minimally invasive means have proven suitable testing substrates for a variety of ancillary tests, including immunohistochemistry, fluorescence in situ hybridization, as well as polymerase chain reaction and next generation sequencing molecular techniques. By focusing specifically on the cytology specimen, this review provides an overview of basic testing considerations and assay selection in addition to updates on the ancillary testing of cytologic tumor specimens from the lung, salivary gland, and thyroid.
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Affiliation(s)
- Paul A VanderLaan
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Sinchita Roy-Chowdhuri
- Department of Pathology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | | | - Vivian L Weiss
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
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In Silico Prospects and Therapeutic Applications of Ouabagenin and Hydroxylated Corticosteroid Analogues in the Treatment of Lung Cancer. Appl Biochem Biotechnol 2022; 194:6106-6125. [PMID: 35895251 DOI: 10.1007/s12010-022-04083-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2022] [Indexed: 11/02/2022]
Abstract
Lung cancer is the second most prevalent carcinoma around the world, and about 80% of patients are of non-small cell lung cancer (NS-CLC). Epidermal growth factor receptor (EGFR) is the most expressed protein kinases in lung cancer and hence can be used in target-related anti-cancer therapy. Here, computational approach is used for the exploration of the anti-cancer potential of new steroid derivatives as previously no in vitro data was available for them. Initially, DFT calculations of all compounds were determined to analyze the electronic density of optimized structures. The HOMO and LUMO orbital analysis of all derivatives was analyzed, to investigate the reactivity of compounds. Afterwards, optimized structures were used for molecular docking studies in which all ouabagenin derivatives were docked within the EGFR active site using MOE software. Moreover, anti-cancer potential of selected derivatives was evaluated on the basis of binding interactions with three anti-cancer proteins. The binding scores of these compounds were compared with the FDA-approved drug, i.e., gefitinib. The findings of current study suggested that selected derivatives exhibited significant inhibiting potential of anti-cancer proteins and EGFR. Particularly, compound OD3 is the potent inhibitor of anti-cancer and EGFR protein with the highest binding energies. These novel steroidal derivatives are subjected to in silico analysis for the first time against lung cancer. These compounds possess potential anti-cancerous properties and can be explored further for in vitro and in vivo studies.
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Kroschke J, von Stackelberg O, Heußel CP, Wielpütz MO, Kauczor HU. Imaging Biomarkers in Thoracic Oncology: Current Advances in the Use of Radiomics in Lung Cancer Patients and its Potential Use for Therapy Response Prediction and Monitoring. ROFO-FORTSCHR RONTG 2022; 194:720-727. [PMID: 35211928 DOI: 10.1055/a-1729-1516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related deaths. The development of therapies targeting molecular alterations has significantly improved the treatment of NSCLC patients. To identify these targets, tumor phenotyping is required, with tissue biopsies and molecular pathology being the gold standard. Some patients do not respond to targeted therapies and many patients suffer from tumor recurrence, which can in part be explained by tumor heterogeneity. This points out the need for new biomarkers allowing for better tumor phenotyping and monitoring during treatment to assess patient outcome. METHOD The contents of this review are based on a literature search conducted using the PubMed database in March 2021 and the authors' experience. RESULTS AND CONCLUSION The use of radiomics and artificial intelligence-based approaches allows for the identification of imaging biomarkers in NSCLC patients for tumor phenotyping. Several studies show promising results for models predicting molecular alterations, with the best results being achieved by combining structural and functional imaging. Radiomics could help solve the pressing clinical need for assessing and predicting therapy response. To reach this goal, advanced tumor phenotyping, considering tumor heterogeneity, is required. This could be achieved by integrating structural and functional imaging biomarkers with clinical data sources, such as liquid biopsy results. However, to allow for radiomics-based approaches to be introduced into clinical practice, further standardization using large, multi-center datasets is required. KEY POINTS · Some NSCLC patients do not benefit from targeted therapies, and many patients suffer from tumor recurrence, pointing out the need for new biomarkers allowing for better tumor phenotyping and monitoring during treatment.. · The use of radiomics-based approaches allows for the identification of imaging biomarkers in NSCLC patients for tumor phenotyping.. · A multi-omics approach integrating not only structural and functional imaging biomarkers but also clinical data sources, such as liquid biopsy results, could further enhance the prediction and assessment of therapy response.. CITATION FORMAT · Kroschke J, von Stackelberg O, Heußel CP et al. Imaging Biomarkers in Thoracic Oncology: Current Advances in the Use of Radiomics in Lung Cancer Patients and its Potential Use for Therapy Response Prediction and Monitoring. Fortschr Röntgenstr 2022; DOI: 10.1055/a-1729-1516.
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Affiliation(s)
- Jonas Kroschke
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany.,Translational Lung Research Center (TLRC), German Center for Lung Research, Giessen, Germany.,Department for Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik am Universitätsklinikum Heidelberg, Germany
| | - Oyunbileg von Stackelberg
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany.,Translational Lung Research Center (TLRC), German Center for Lung Research, Giessen, Germany.,Department for Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik am Universitätsklinikum Heidelberg, Germany
| | - Claus Peter Heußel
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany.,Translational Lung Research Center (TLRC), German Center for Lung Research, Giessen, Germany.,Department for Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik am Universitätsklinikum Heidelberg, Germany
| | - Mark Oliver Wielpütz
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany.,Translational Lung Research Center (TLRC), German Center for Lung Research, Giessen, Germany.,Department for Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik am Universitätsklinikum Heidelberg, Germany
| | - Hans-Ulrich Kauczor
- Department for Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany.,Translational Lung Research Center (TLRC), German Center for Lung Research, Giessen, Germany.,Department for Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik am Universitätsklinikum Heidelberg, Germany
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Xiong Y, Tang H. A Sensitive PCR-Based Method for Somatic Mutations Enrichment and Screening. Cancer Manag Res 2021; 13:8099-8107. [PMID: 34737638 PMCID: PMC8558320 DOI: 10.2147/cmar.s335679] [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: 08/26/2021] [Accepted: 10/11/2021] [Indexed: 11/23/2022] Open
Abstract
Background EGFR and KRAS are the most frequently mutated genes in lung cancers, occurring in about 60% of all cases. Mutation genes assay has emerged as a promising blood-based biomarker for monitoring cancer dynamics noninvasively. However, detection can be challenging in patients where plasma often contains low levels of tumor-derived DNA fragments. Methods We have developed a nuclease-based enrichment assay for detecting mutant alleles. The procedure is based on Surveyor endonuclease cleaves mismatched DNA molecules, and these DNA fragments were enriched for mutation screening. We screened lung cancer specimens for mutations in exons 18 and 21 of EGFR, and the majority of activating mutations in lung cancer occur in codons 12 (G12X) and 13 (G13X) of exon 2 of the KRAS gene. The method screened all mutant genes with the same pair primers and three relevant TaqMan probes. Results The method can effectively remove wild-type sequences and enrich mutation DNA, and the sensitivity detectable mutant allele frequencies (MAF) achieved 0.001%. The method increases the sensitivity and efficiency of mutation DNA for cancers screening. This highlights the importance of complex DNA variation like mutations in exon 21 of EGFR and exon 2 of the KRAS gene detected by the same probe. Conclusion We developed a simple and sensitive methodology for mutation gene screening. The method is a cost-effective and sensitive method for mutation DNA enrichment and detection.
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Affiliation(s)
- Yaming Xiong
- Department of Thoracic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, People's Republic of China
| | - Hailing Tang
- Department of Thoracic Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, People's Republic of China
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Sheffels E, Kortum RL. The Role of Wild-Type RAS in Oncogenic RAS Transformation. Genes (Basel) 2021; 12:genes12050662. [PMID: 33924994 PMCID: PMC8146411 DOI: 10.3390/genes12050662] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023] Open
Abstract
The RAS family of oncogenes (HRAS, NRAS, and KRAS) are among the most frequently mutated protein families in cancers. RAS-mutated tumors were originally thought to proliferate independently of upstream signaling inputs, but we now know that non-mutated wild-type (WT) RAS proteins play an important role in modulating downstream effector signaling and driving therapeutic resistance in RAS-mutated cancers. This modulation is complex as different WT RAS family members have opposing functions. The protein product of the WT RAS allele of the same isoform as mutated RAS is often tumor-suppressive and lost during tumor progression. In contrast, RTK-dependent activation of the WT RAS proteins from the two non-mutated WT RAS family members is tumor-promoting. Further, rebound activation of RTK–WT RAS signaling underlies therapeutic resistance to targeted therapeutics in RAS-mutated cancers. The contributions of WT RAS to proliferation and transformation in RAS-mutated cancer cells places renewed interest in upstream signaling molecules, including the phosphatase/adaptor SHP2 and the RasGEFs SOS1 and SOS2, as potential therapeutic targets in RAS-mutated cancers.
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8
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Chen YH, Wang TF, Chu SC, Lin CB, Wang LY, Lue KH, Liu SH, Chan SC. Incorporating radiomic feature of pretreatment 18F-FDG PET improves survival stratification in patients with EGFR-mutated lung adenocarcinoma. PLoS One 2020; 15:e0244502. [PMID: 33370365 PMCID: PMC7769431 DOI: 10.1371/journal.pone.0244502] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 12/10/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND To investigate the survival prognostic value of the radiomic features of 18F-FDG PET in patients who had EGFR (epidermal growth factor receptor) mutated lung adenocarcinoma and received targeted TKI (tyrosine kinase inhibitor) treatment. METHODS Fifty-one patients with stage III-IV lung adenocarcinoma and actionable EGFR mutation who received first-line TKI were retrospectively analyzed. All patients underwent pretreatment 18F-FDG PET/CT, and we calculated the PET-derived radiomic features. Cox proportional hazard model was used to examine the association between the radiomic features and the survival outcomes, including progression-free survival (PFS) and overall survival (OS). A score model was established according to the independent prognostic predictors and we compared this model to the TNM staging system using Harrell's concordance index (c-index). RESULTS Forty-eight patients (94.1%) experienced disease progression and 41 patients (80.4%) died. Primary tumor SUV entropy > 5.36, and presence of pleural effusion were independently associated with worse OS (both p < 0.001) and PFS (p = 0.001, and 0.003, respectively). We used these two survival predictors to devise a scoring system (score 0-2). Patients with a score of 1 or 2 had a worse survival than those with a score of 0 (HR for OS: 3.6, p = 0.006 for score 1, and HR: 21.8, p < 0.001 for score 2; HR for PFS: 2.2, p = 0.027 for score 1 and HR: 8.8, p < 0.001 for score 2). Our scoring system surpassed the TNM staging system (c-index = 0.691 versus 0.574, p = 0.013 for OS, and c-index = 0.649 versus 0.517, p = 0.004 for PFS). CONCLUSIONS In this preliminary study, combining PET radiomics with clinical risk factors may improve survival stratification in stage III-IV lung adenocarcinoma with actionable EFGR mutation. Our proposed scoring system may assist with optimization of individualized treatment strategies in these patients.
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Affiliation(s)
- Yu-Hung Chen
- Department of Nuclear Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Tso-Fu Wang
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
- Department of Hematology and Oncology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Sung-Chao Chu
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
- Department of Hematology and Oncology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chih-Bin Lin
- Department of Internal Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Ling-Yi Wang
- Epidemiology and Biostatistics Consulting Center, Department of Medical Research and Department of Pharmacy, Tzu Chi General Hospital, Hualien, Taiwan
| | - Kun-Han Lue
- Department of Medical Imaging and Radiological Sciences, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Shu-Hsin Liu
- Department of Nuclear Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Department of Medical Imaging and Radiological Sciences, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Sheng-Chieh Chan
- Department of Nuclear Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Department of Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
- * E-mail:
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Abstract
PURPOSE OF REVIEW We herein review some of the major patterns of resistance and lessons learned from the use of earlier targeted therapies in two genotype-driven solid tumors. RECENT FINDINGS Targeted agents have rapidly expanded in the field of oncology over the past 2 decades. The breakthroughs achieved by these agents have been, however, hindered by the inevitable development of drug resistance. Intrinsic or acquired mechanisms of resistance eventually lead to treatment tolerance and tumoral plasticity with phenotypic switch and evasion of the original targeted pathway. Failures in such therapies also result from poor selectivity of the target, drug delivery, and unaffordable costs. SUMMARY Based on above findings, collaborative efforts are advancing at the molecular level to design better drugs or combinatorial strategies and to develop more sensitive assays to monitor responses and the emergence of resistance.
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Jazieh AR, Bounedjar A, Al Dayel F, Fahem S, Tfayli A, Rasul K, Jaafar H, Jaloudi M, Al Fayea T, Al Maghrabi HQ, Bamefleh H, Al Kattan K, Larbaoui B, Filali T, Al Husaini H, Ali Y. The Study of Druggable Targets in Nonsquamous Non-Small-Cell Lung Cancer in the Middle East and North Africa. ACTA ACUST UNITED AC 2020. [DOI: 10.4103/jipo.jipo_22_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
Background: Druggable molecular targets are very important in the management of non-small-cell lung cancer (NSCLC). The purpose of our study is to determine the pattern of testing and mutation prevalence in the Middle East and North Africa population. Patients and Methods: Data of consecutive patients with nonsquamous NSCLC were collected from 10 centers in five countries; Saudi Arabia, UAE, Qatar, Lebanon, and Algeria. Statistical analysis was performed to delineate the prevalence of druggable targets and other relevant information. Results: Five hundred and sixty-six patients were included in the study. Majority were males (78.1%) with a median age of 61 years (22–89), 50% were current or ex-smokers and 370 patients (65.4%) were Stage IV. The epidermal growth factor receptor (EGFR) testing was performed on 164 patients of all stages. EGFR mutation was detected in 30 out of 96 patients (31.3%) with metastatic disease and in 12 out of 68 patients (17.6%) with Stage I to III. Female sex (39.5% vs. 22% males, P = 0.032), Stage IV (31.2% vs. 17.6% in Stage I to III, P = 0.049), and positive immunohistochemical-TTF1 (31.4% vs. 8.7% negative, P = 0.026) were predictors of mutation on univariate analysis. The multivariate analysis showed that patients with stage IV have three times higher positivity than lower stages (odds ratio = 3.495, P = 0.036). Anaplastic lymphoma kinase fusion was present in seven out of 89 patients (7.8%) of all stages, and only three out of 52 patients (5.8%) with metastatic disease. The reasons for not performing the tests in all of the 370 patients with metastatic disease were: physicians do not know where and how to send the test (62.3%), lack of funding to perform the test (11.1%), insufficient tissue (10.1%), and other reasons (16.6%). Conclusions: Only a small fraction of patients with NSCLC are tested for druggable targets and the prevalence of EGFR mutation is prevalence higher than the Western population. Overcoming the challenges of testing requires systematic plans to address education and resource allocation.
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Affiliation(s)
- Abdul Rahman Jazieh
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Adda Bounedjar
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- BLIDA 1 University, CHU BLIDA, Algeria
| | - Fouad Al Dayel
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- King Faisal Specialist Hospital and Research Center, Riyadh, KSA
| | - Shamayel Fahem
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- King Faisal Specialist Hospital and Research Center, Riyadh, KSA
| | - Arafat Tfayli
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- The American University of Beirut, Lebanon
| | - Kakil Rasul
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Weill Cornell Medical College/Hamad Medical Corporation, Qatar
| | - Hassan Jaafar
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Tawam Hospital, UAE
| | - Mohammad Jaloudi
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Tawam Hospital, UAE
| | - Turki Al Fayea
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Princess Noorah Oncology Center, King Abdulaziz Medical City
| | - Hatim Q Al Maghrabi
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Jeddah, KSA
| | - Hanaa Bamefleh
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Khaled Al Kattan
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- King Faisal Specialist Hospital and Research Center, Riyadh, KSA
| | - Blaha Larbaoui
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Anti Cancer Center, Oran, Algeria
| | - Taha Filali
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Centre Hospitalo Universitaire Ben Badis de Constantine, Constantine, Algeria
| | - Hamed Al Husaini
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- King Faisal Specialist Hospital and Research Center, Riyadh, KSA
| | - Yosra Ali
- King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
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Jazieh AR, Ibrahim N, Abdulkareem H, Maraiki F, Alsaleh K, Thill M. Expert-Based Strategies to Improve Access to Cancer Therapeutics at the Hospital Level. ACTA ACUST UNITED AC 2020. [DOI: 10.4103/jqsh.jqsh_4_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
Background: Challenges related to access to cancer medications is an increasing global problem that has far-reaching impact on patients and healthcare systems. In this article, we are enlisting suggested solutions at the hospital or practice level to maximize the access to these important treatment modalities. Methods: An expert panel of practicing oncologists, clinical pharmacists, and health economists convened using a framework approach. The panelists identified individuals and entities that impact the use of cancer therapeutics and how they can improve the utilization and access to them. They enlisted the potential actions that hospital management and staff can take to enhance access to cancer therapeutics, then they grouped them into specific categories. Results: List of potential strategies and related action items were compiled into different categories including hospital leadership, drug evaluation entities, pharmacy, physicians, patients and families, and other parties. Recommendations included various actions to be considered by each group to achieve set goals. Conclusion: Our expert panel recommend multiple strategies and approaches to reduce the cost of cancer medications and improve patients' access to them. These recommendations can be adapted by the decision-makers and staff of the hospitals to their own settings and the current circumstances.
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Affiliation(s)
- Abdul Rahman Jazieh
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
| | - Nagwa Ibrahim
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
- Department of Pharmacy, Prince Sultan Military Medical City,
| | - Hana Abdulkareem
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
- Drug Policy and Economics Center, King Abdulaziz Medical City, Ministry of National Guard Health Affairs,
| | - Fatma Maraiki
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
- Department of Pharmacy, King Faisal Specialist Hospital and Research Center,
| | - Khalid Alsaleh
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
- Department of Oncology, King Khalid University Hospital, Riyadh, Saudi Arabia,
| | - Marc Thill
- Department of Oncology, King Abdulaziz Medical City, King Saud Bin Abdulaziz University for Health Science, Ministry of National Guard Health Affairs,
- Department of OB and GYN, Certified Breast Cancer Center, Certified Cancer Center, Certified Endometriosis Center, Certified Dysplastic Unit, AGAPLESION Markus Krankenhaus, Frankfurt, Germany
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12
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Zeinali M, Lee M, Nadhan A, Mathur A, Hedman C, Lin E, Harouaka R, Wicha MS, Zhao L, Palanisamy N, Hafner M, Reddy R, Kalemkerian GP, Schneider BJ, Hassan KA, Ramnath N, Nagrath S. High-Throughput Label-Free Isolation of Heterogeneous Circulating Tumor Cells and CTC Clusters from Non-Small-Cell Lung Cancer Patients. Cancers (Basel) 2020; 12:cancers12010127. [PMID: 31947893 PMCID: PMC7016759 DOI: 10.3390/cancers12010127] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/17/2019] [Accepted: 12/30/2019] [Indexed: 11/25/2022] Open
Abstract
(1) Background: Circulating tumor cell (CTC) clusters are emerging as clinically significant harbingers of metastases in solid organ cancers. Prior to engaging these CTC clusters in animal models of metastases, it is imperative for technology to identify them with high sensitivity. These clusters often present heterogeneous surface markers and current methods for isolation of clusters may fall short. (2) Methods: We applied an inertial microfluidic Labyrinth device for high-throughput, biomarker-independent, size-based isolation of CTCs/CTC clusters from patients with metastatic non-small-cell lung cancer (NSCLC). (3) Results: Using Labyrinth, CTCs (PanCK+/DAPI+/CD45−) were isolated from patients (n = 25). Heterogeneous CTC populations, including CTCs expressing epithelial (EpCAM), mesenchymal (Vimentin) or both markers were detected. CTCs were isolated from 100% of patients (417 ± 1023 CTCs/mL). EpCAM− CTCs were significantly greater than EpCAM+ CTCs. Cell clusters of ≥2 CTCs were observed in 96% of patients—of which, 75% were EpCAM−. CTCs revealed identical genetic aberrations as the primary tumor for RET, ROS1 , and ALK genes using fluorescence in situ hybridization (FISH) analysis. (4) Conclusions: The Labyrinth device recovered heterogeneous CTCs in 100% and CTC clusters in 96% of patients with metastatic NSCLC. The majority of recovered CTCs/clusters were EpCAM−, suggesting that these would have been missed using traditional antibody-based capture methods.
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Affiliation(s)
- Mina Zeinali
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
- Institute for Medical Technology of Heidelberg University & University of Applied Sciences Mannheim, Paul-Wittsack-Straße 10, 68163 Mannheim, Germany;
| | - Maggie Lee
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
| | - Arthi Nadhan
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
| | - Anvya Mathur
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
| | - Casey Hedman
- Molecular, Cellular, and Developmental Biology, University of Michigan, 1105 North University Avenue, 2220 Biological Science Building, Ann Arbor, MI 48109, USA;
| | - Eric Lin
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
| | - Ramdane Harouaka
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
| | - Max S. Wicha
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
| | - Lili Zhao
- Biostatistics Department, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Nallasivam Palanisamy
- Department of Urology, Henry Ford Health System, 1 Ford Place, Room 2D26, Detroit, MI 48202, USA;
| | - Mathias Hafner
- Institute for Medical Technology of Heidelberg University & University of Applied Sciences Mannheim, Paul-Wittsack-Straße 10, 68163 Mannheim, Germany;
| | - Rishindra Reddy
- Department of Surgery, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA;
| | - Gregory P. Kalemkerian
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
| | - Bryan J. Schneider
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
| | - Khaled A. Hassan
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
| | - Nithya Ramnath
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA; (R.H.); (M.S.W.); (G.P.K.); (B.J.S.); (K.A.H.)
- Veterans Administration Ann Arbor Healthcare System, 2215 Fuller Road, Ann Arbor, MI 48105, USA
- Correspondence: (N.R.); (S.N.); Tel.: +734-936-9015 (N.R.); +734-647-7985 (S.N.)
| | - Sunitha Nagrath
- Chemical Engineering, University of Michigan, 2800 Plymouth Road, NCRC, Building 20-3rd Floor, Ann Arbor, MI 48109, USA; (M.Z.); (M.L.); (A.N.); (A.M.); (E.L.)
- Biointerfaces Institute, University of Michigan, 2800 Plymouth Road, NCRC B10-A184, Ann Arbor, MI 48109, USA
- Correspondence: (N.R.); (S.N.); Tel.: +734-936-9015 (N.R.); +734-647-7985 (S.N.)
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13
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Lo Gullo R, Daimiel I, Morris EA, Pinker K. Combining molecular and imaging metrics in cancer: radiogenomics. Insights Imaging 2020; 11:1. [PMID: 31901171 PMCID: PMC6942081 DOI: 10.1186/s13244-019-0795-6] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 09/25/2019] [Indexed: 02/07/2023] Open
Abstract
Background Radiogenomics is the extension of radiomics through the combination of genetic and radiomic data. Because genetic testing remains expensive, invasive, and time-consuming, and thus unavailable for all patients, radiogenomics may play an important role in providing accurate imaging surrogates which are correlated with genetic expression, thereby serving as a substitute for genetic testing. Main body In this article, we define the meaning of radiogenomics and the difference between radiomics and radiogenomics. We provide an up-to-date review of the radiomics and radiogenomics literature in oncology, focusing on breast, brain, gynecological, liver, kidney, prostate and lung malignancies. We also discuss the current challenges to radiogenomics analysis. Conclusion Radiomics and radiogenomics are promising to increase precision in diagnosis, assessment of prognosis, and prediction of treatment response, providing valuable information for patient care throughout the course of the disease, given that this information is easily obtainable with imaging. Larger prospective studies and standardization will be needed to define relevant imaging biomarkers before they can be implemented into the clinical workflow.
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Affiliation(s)
- Roberto Lo Gullo
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, 300 E 66th St, New York, NY, 10065, USA.
| | - Isaac Daimiel
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, 300 E 66th St, New York, NY, 10065, USA
| | - Elizabeth A Morris
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, 300 E 66th St, New York, NY, 10065, USA
| | - Katja Pinker
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, 300 E 66th St, New York, NY, 10065, USA.,Department of Biomedical Imaging and Image-guided Therapy, Molecular and Gender Imaging Service, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Wien, Austria
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14
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Liu Z, Wan Y, Qiu Y, Qi X, Yang M, Huang J, Zhang Q. Development and validation of a novel immune-related prognostic model in lung squamous cell carcinoma. Int J Med Sci 2020; 17:1393-1405. [PMID: 32624696 PMCID: PMC7330657 DOI: 10.7150/ijms.47301] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 05/23/2020] [Indexed: 12/12/2022] Open
Abstract
Background: The immune system plays an important role in the development of lung squamous cell carcinoma (LUSC). Therefore, immune-related genes (IRGs) expression may be an important predictor of LUSC prognosis. However, a prognostic model based on IRGs that can systematically assess the prognosis of LUSC patients is still lacking. This study aimed to construct a LUSC immune-related prognostic model by using IRGs. Methods: Gene expression data about LUSC were obtained from The Cancer Genome Atlas (TCGA). Differential expression analysis and univariate Cox regression analysis were performed to identify prognostic differentially expressed IRGs. A prognostic model was constructed using the Lasso and multivariate Cox regression analyses. Then we validated the performance of the prognostic model in training and test cohorts. Furthermore, associations with clinical variables and immune infiltration were also analyzed. Results: 593 differentially expressed IRGs were identified, and 8 of them were related to prognosis. Then a transcription factor regulatory network was established. A prognostic model consisted of 4 immune-related genes was constructed by using Lasso and multivariate Cox regression analyses. The prognostic value of this model was successfully validated in training and test cohorts. Further analysis showed that the prognostic model could be used independently to predict the prognosis of LUSC patients. The relationships between the risk score and immune cell infiltration indicated that the model could reflect the status of the tumor immune microenvironment. Conclusions: We constructed a risk model using four PDIRGs that can accurately predict the prognosis of LUSC patients. The risk score generated by this model can be used as an independent prognostic indicator. Moreover, the model can predict the infiltration of immune cells in patients, which is conducive to the prediction of patient sensitivity to immunotherapy.
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Affiliation(s)
- Zeyu Liu
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuxiang Wan
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuqin Qiu
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xuewei Qi
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Ming Yang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jinchang Huang
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qiaoli Zhang
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
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15
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Li M, Zhang L, Tang W, Duan JC, Jin YJ, Qi LL, Wu N. Dual-energy spectral CT characteristics in surgically resected lung adenocarcinoma: comparison between Kirsten rat sarcoma viral oncogene mutations and epidermal growth factor receptor mutations. Cancer Imaging 2019; 19:77. [PMID: 31783917 PMCID: PMC6884869 DOI: 10.1186/s40644-019-0261-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/06/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Kirsten rat sarcoma viral oncogene homolog (KRAS) and epidermal growth factor receptor (EGFR) are the two most frequent and well-known oncogene of lung adenocarcinoma. The purpose of this study is to compare the characteristics measured with dual-energy spectral computed tomography (DESCT) in lung adenocarcinoma patients who have KRAS and EGFR gene mutations. METHODS Patients with surgically resected lung adenocarcinoma (n = 72) were enrolled, including 12 patients with KRAS mutations and 60 patients with EGFR mutations. DESCT quantitative parameters, including the CT number at 70 keV, the slopes of the spectral attenuation curves (slope λ HU), normalized iodine concentration (NIC), normalized water concentration (NWC), and effective atomic number (effective Z), were analyzed. A multiple logistic regression model was applied to discriminate clinical and DESCT characteristics between the types of mutations. RESULTS The KRAS mutation was more common in people who smoked than the EGFR mutation. Nodule type differed significantly between the KRAS and EGFR groups (P = 0.035), and all KRAS mutation adenocarcinomas were solid nodules. Most DESCT quantitative parameters differed significantly between solid nodules and subsolid nodules. CT number at 70 keV, slope λ HU, NIC, and effective Z differed significantly between the KRAS and EGFR groups (P = 0.006, 0.017, 0.013 and 0.010) with solid lung adenocarcinoma. Multivariate logistic analysis of DESCT and clinical features indicated that besides smoking history, the CT value at 70 keV (OR = 0.938, P = 0.009) was significant independent factor that could be used to differentiate KRAS and EGFR mutations in solid lung adenocarcinoma. CONCLUSIONS DESCT would be a potential tool to differentiate lung adenocarcinoma patients with a KRAS mutation from those with an EGFR mutation.
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Affiliation(s)
- Meng Li
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Li Zhang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Wei Tang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jian-Chun Duan
- 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, China
| | - Yu-Jing Jin
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Lin-Lin Qi
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ning Wu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China. .,PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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16
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T-blocker: a simple and robust probe-free quantitative PCR assay to detect somatic mutations down to 0.1% frequency. Biotechniques 2019; 65:205-210. [PMID: 30284934 DOI: 10.2144/btn-2018-0111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We have developed a simple and robust probe-free quantitative PCR (qPCR) assay method that can detect minor mutant alleles with a frequency as low as 0.1% in a heterogeneous sample by introducing a novel T-blocker concept to the allele-specific PCR method. Four new KRAS and BRAF mutation detection assays were developed and their performance was demonstrated by testing a large number of replicates, utilizing a customized PCR protocol. Highly efficient and specific mutant amplification in conjunction with selective wild-type suppression by the T-blocker concept enabled 0.1% detection sensitivity using the intercalating dye-based qPCR chemistry instead of more complex target-specific dye-labeled probes. Excellent consistency in sensitivity and specificity of the T-blocker assay concept was demonstrated.
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17
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Li M, Zhang L, Tang W, Ma PQ, Zhou LN, Jin YJ, Qi LL, Wu N. Quantitative features of dual-energy spectral computed tomography for solid lung adenocarcinoma with EGFR and KRAS mutations, and ALK rearrangement: a preliminary study. Transl Lung Cancer Res 2019; 8:401-412. [PMID: 31555515 DOI: 10.21037/tlcr.2019.08.13] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background The present work aimed to evaluate radio-genomic associations of quantitative parameters obtained by dual-energy spectral computed tomography (DESCT) for solid lung adenocarcinoma with epidermal growth factor receptor (EGFR) and Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations, as well as anaplastic lymphoma kinase (ALK) rearrangement. Methods Ninety-six cases of solid lung cancer were selected and assessed for EGFR and KRAS mutations, and ALK rearrangement. Then, they underwent chest DESCT, and quantitative parameters, including water concentration (WC), iodine concentration (IC), CT value at 70 keV, effective atomic number (Effective-Z) and spectral Hounsfield unit curve slope (λHU slope) were measured. Finally, the associations of quantitative radiological features with various gene alterations were evaluated. Results The positive rates were 51.0% (49/96) for EGFR, 13.5% (13/96) for KRAS and 16.7% (16/96) for ALK. In univariate analysis, EGFR mutation was associated with smoking status, CT value at 70 keV, IC, Effective-Z, and λHU slope; KRAS mutation was associated with CT value at 70 keV, IC, Effective-Z, and λHU slope, and ALK rearrangement was correlated with age and WC. In multivariate analysis, smoking status (OR =2.924, P=0.019) and CT value at 70 keV (OR =1.036, P=0.006) were significantly associated with EGFR mutation; Effective-Z and age were significantly associated with KRAS mutation (OR =0.047, P=0.032) and ALK rearrangement (OR =0.933, P=0.008), respectively. Conclusions Quantitative analysis of DESCT could help detect solid lung adenocarcinoma harboring EGFR or KRAS mutation, or ALK rearrangement.
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Affiliation(s)
- Meng Li
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Li Zhang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Wei Tang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Pei-Qing Ma
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Li-Na Zhou
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yu-Jing Jin
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Lin-Lin Qi
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ning Wu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.,PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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18
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Hellyer JA, Stehr H, Das M, Padda SK, Ramchandran K, Neal JW, Diehn M, Wakelee HA. Impact of KEAP1/NFE2L2/CUL3 mutations on duration of response to EGFR tyrosine kinase inhibitors in EGFR mutated non-small cell lung cancer. Lung Cancer 2019; 134:42-45. [PMID: 31319993 DOI: 10.1016/j.lungcan.2019.05.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/30/2019] [Accepted: 05/03/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVES For patients with Epidermal Growth Factor Receptor (EGFR)-mutated non-small cell lung cancer (NSCLC), frontline EGFR-tyrosine kinase inhibitor (TKI) therapy compared to chemotherapy improves outcomes. However, resistance to these agents uniformly develops. Recently, mutations in the KEAP1-NFE2L2 pathway have been implicated as a potential mechanism of acquired EGFR TKI resistance. MATERIALS AND METHODS We examined all patients with metastatic NSCLC with mutations in both EGFR and KEAP1/NFE2L2/CUL3 identified on next generation sequencing from 2015 - 2018. These patients were compared to a NSCLC control cohort with mutations in EGFR and wild type in KEAP1/NFE2L2/CUL3 matched on the basis of sex, smoking status, age and race. Time to treatment failure on EGFR TKI therapy and overall survival were examined. RESULTS Among 228 EGFR mutant NSCLCs, 17 (7%) also carried mutations in KEAP1, NFE2L2, or CUL3. The most common co-mutation in both the KEAP1/NFE2L2/CUL3 mutant and wild-type cohort was TP53. Patients with KEAP1/NFE2L2/CUL3 mutations had a shorter median time to treatment failure on EGFR TKI (4.7 months) compared with the wild-type matched cohort (13.0 months), p= 0.0014. There was no difference in overall survival. CONCLUSION For NSCLC patients with mutations in EGFR, co-mutations in KEAP1/NFE2L2/CUL3 are associated with significantly decreased time to treatment failure. Our results suggest that these mutations represent a mechanism of intrinsic resistance to TKI treatment.
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Affiliation(s)
- Jessica A Hellyer
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Henning Stehr
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Millie Das
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA; Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Sukhmani K Padda
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Kavitha Ramchandran
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Joel W Neal
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Maximilian Diehn
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA; Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Heather A Wakelee
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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19
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Biomarkers in Non-Small Cell Lung Cancers: Indian Consensus Guidelines for Molecular Testing. Adv Ther 2019; 36:766-785. [PMID: 30864106 DOI: 10.1007/s12325-019-00903-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Indexed: 12/17/2022]
Abstract
Novel molecular targets and promising targeted therapies have reshaped diagnostics in patients with advanced non-small cell lung cancer (NSCLC). Despite this progress, the implementation of molecular screening to identify predictive biomarkers in Indian clinical and pathology settings has been challenging due to operational and logistical constraints. This consensus guideline brings together medical oncologists, molecular pathologists and pathologists from India to provide a quick and competent reference for biomarker testing in NSCLC. The guideline summarizes the importance of targetable mutations in NSCLC such as epidermal growth factor receptor (EGFR), rearrangements in anaplastic lymphoma kinase and receptor tyrosine kinase encoded by ROS-1 gene, overexpression of programmed cell death ligand-1 and resistant EGFR mutations. It reaffirms recommendations from international working groups, discusses vulnerable pre-analytical procedures and provides a balanced review on the pros and cons of different diagnostic tests (immunohistochemistry, fluorescence in situ hybridization, polymerase chain reaction-based testing and next-generation sequencing). The document also provides an algorithm to aid diagnostic decision-making and a checklist to assess the quality of testing laboratories that will help the medical oncologists make an informed choice. Overall, these recommendations are based on evidence and clinical experience and will aid policymakers, oncologists, health care practitioners and pathologists who strive to implement molecular strategies and make informed decisions for improved care in NSCLC in India.Funding: AstraZeneca Pharma India Limited.
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20
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Jorge SE, Lucena-Araujo AR, Yasuda H, Piotrowska Z, Oxnard GR, Rangachari D, Huberman MS, Sequist LV, Kobayashi SS, Costa DB. EGFR Exon 20 Insertion Mutations Display Sensitivity to Hsp90 Inhibition in Preclinical Models and Lung Adenocarcinomas. Clin Cancer Res 2018; 24:6548-6555. [PMID: 30154228 DOI: 10.1158/1078-0432.ccr-18-1541] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/13/2018] [Accepted: 08/21/2018] [Indexed: 01/28/2023]
Abstract
PURPOSE EGFR exon 20 insertions account for up to 10% of all EGFR mutations in lung adenocarcinomas, representing the third most common cluster of mutations. The management of advanced cancers with these mutations remains elusive, without an approved inhibitor. EXPERIMENTAL DESIGN Preclinical models of a representative set of EGFR exon 20 insertion mutations to evaluate the efficacy of different inhibitors and description of the clinical outcome of an advanced lung cancer. RESULTS We show that select first-, second-, and third-generation EGFR inhibitors are unable to deter common EGFR exon 20 insertion mutants in concentrations that spare the wild-type kinase. Nonetheless, EGFR exon 20 insertion mutants associate with the Hsp90 chaperone system. We exploit this vulnerability to show that the nongeldanamycin Hsp90 inhibitor luminespib (formerly AUY922) degrades EGFR exon 20 mutations, downstream targets, and induces apoptosis. In addition, a patient whose EGFR inhibitor-insensitive lung adenocarcinoma harbored an EGFR exon 20 insertion mutation had a confirmed radiographic response to luminespib. CONCLUSIONS The report confirms that EGFR exon 20 mutations are dependent on Hsp90 and are readily inhibited by the Hsp90 inhibitor luminespib; a treatment strategy that has been pursued in a confirmatory clinical trial (NCT01854034) for this group of lung adenocarcinomas that currently represent an unmet clinical need in precision oncology.
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Affiliation(s)
- Susan E Jorge
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Antonio R Lucena-Araujo
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Hiroyuki Yasuda
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Zofia Piotrowska
- Department of Medicine, Division of Hematology/Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Geoffrey R Oxnard
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Deepa Rangachari
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Mark S Huberman
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Lecia V Sequist
- Department of Medicine, Division of Hematology/Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Susumu S Kobayashi
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts. .,Division of Translational Genomics, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba, Japan
| | - Daniel B Costa
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
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Metformin Enhances Cisplatin-Induced Apoptosis and Prevents Resistance to Cisplatin in Co-mutated KRAS/LKB1 NSCLC. J Thorac Oncol 2018; 13:1692-1704. [PMID: 30149143 DOI: 10.1016/j.jtho.2018.07.102] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 07/02/2018] [Accepted: 07/19/2018] [Indexed: 12/22/2022]
Abstract
INTRODUCTION We hypothesized that activating KRAS mutations and inactivation of the liver kinase B1 (LKB1) oncosuppressor can cooperate to sustain NSCLC aggressiveness. We also hypothesized that the growth advantage of KRAS/LKB1 co-mutated tumors could be balanced by higher sensitivity to metabolic stress conditions, such as metformin treatment, thus revealing new strategies to target this aggressive NSCLC subtype. METHODS We retrospectively determined the frequency and prognostic value of KRAS/LKB1 co-mutations in tissue specimens from NSCLC patients enrolled in the TAILOR trial. We generated stable LKB1 knockdown and LKB1-overexpressing isogenic H1299 and A549 cell variants, respectively, to test the in vitro efficacy of metformin. We also investigated the effect of metformin on cisplatin-resistant CD133+ cells in NSCLC patient-derived xenografts. RESULTS We found a trend towards worse overall survival in patients with KRAS/LKB1 co-mutated tumors as compared to KRAS-mutated ones (hazard ratio: 2.02, 95% confidence interval: 0.94-4.35, p = 0.072). In preclinical experiments, metformin produced pro-apoptotic effects and enhanced cisplatin anticancer activity specifically in KRAS/LKB1 co-mutated patient-derived xenografts. Moreover, metformin prevented the development of acquired tumor resistance to 5 consecutive cycles of cisplatin treatment (75% response rate with metformin-cisplatin as compared to 0% response rate with cisplatin), while reducing CD133+ cells. CONCLUSIONS LKB1 mutations, especially when combined with KRAS mutations, may define a specific and more aggressive NSCLC subtype. Metformin synergizes with cisplatin against KRAS/LKB1 co-mutated tumors, and may prevent or delay the onset of resistance to cisplatin by targeting CD133+ cancer stem cells. This study lays the foundations for combining metformin with standard platinum-based chemotherapy in the treatment of KRAS/LKB1 co-mutated NSCLC.
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Lv J, Zhang H, Ma J, Ma Y, Gao G, Song Z, Yang Y. Comparison of CT radiogenomic and clinical characteristics between EGFR and KRAS mutations in lung adenocarcinomas. Clin Radiol 2018; 73:590.e1-590.e8. [DOI: 10.1016/j.crad.2018.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 01/11/2018] [Indexed: 01/26/2023]
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23
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Fumagalli C, Vacirca D, Rappa A, Passaro A, Guarize J, Rafaniello Raviele P, de Marinis F, Spaggiari L, Casadio C, Viale G, Barberis M, Guerini-Rocco E. The long tail of molecular alterations in non-small cell lung cancer: a single-institution experience of next-generation sequencing in clinical molecular diagnostics. J Clin Pathol 2018. [PMID: 29535211 DOI: 10.1136/jclinpath-2018-205032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Molecular profiling of advanced non-small cell lung cancers (NSCLC) is essential to identify patients who may benefit from targeted treatments. In the last years, the number of potentially actionable molecular alterations has rapidly increased. Next-generation sequencing allows for the analysis of multiple genes simultaneously. AIMS To evaluate the feasibility and the throughput of next-generation sequencing in clinical molecular diagnostics of advanced NSCLC. METHODS A single-institution cohort of 535 non-squamous NSCLC was profiled using a next-generation sequencing panel targeting 22 actionable and cancer-related genes. RESULTS 441 non-squamous NSCLC (82.4%) harboured at least one gene alteration, including 340 cases (63.6%) with clinically relevant molecular aberrations. Mutations have been detected in all but one gene (FGFR1) of the panel. Recurrent alterations were observed in KRAS, TP53, EGFR, STK11 and MET genes, whereas the remaining genes were mutated in <5% of the cases. Concurrent mutations were detected in 183 tumours (34.2%), mostly impairing KRAS or EGFR in association with TP53 alterations. CONCLUSIONS The study highlights the feasibility of targeted next-generation sequencing in clinical setting. The majority of NSCLC harboured mutations in clinically relevant genes, thus identifying patients who might benefit from different targeted therapies.
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Affiliation(s)
- Caterina Fumagalli
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Davide Vacirca
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Alessandra Rappa
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Antonio Passaro
- Division of Thoracic Oncology, European Institute of Oncology, Milan, Italy
| | - Juliana Guarize
- Division of Thoracic Surgery, European Institute of Oncology, Milan, Italy
| | | | - Filippo de Marinis
- Division of Thoracic Oncology, European Institute of Oncology, Milan, Italy
| | - Lorenzo Spaggiari
- Division of Thoracic Surgery, European Institute of Oncology, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Chiara Casadio
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Giuseppe Viale
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Massimo Barberis
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Elena Guerini-Rocco
- Division of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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Russo A, Franchina T, Ricciardi GRR, Fanizza C, Scimone A, Chiofalo G, Giordano A, Adamo V. Influence of EGFR mutational status on metastatic behavior in non squamous non small cell lung cancer. Oncotarget 2018; 8:8717-8725. [PMID: 28060728 PMCID: PMC5352435 DOI: 10.18632/oncotarget.14427] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/01/2016] [Indexed: 12/25/2022] Open
Abstract
Epidermal Growth Factor Receptor (EGFR) mutated Non Small Cell Lung Cancers (NSCLCs) are a molecularly subgroup of patients with peculiar clinic-pathological characteristics. Previous studies have suggested a possible interaction between oncogene status and metastatic behavior in non squamous NSCLCs with conflicting results. The aim of this study was to compare the different metastatic patterns, at baseline and during the course of the disease, in a cohort of 137 Caucasian patients with non-squamous NSCLC according to the EGFR mutational status and survival differences according to the different metastatic behavior. We observed unique metastatic distributions between EGFR-mutated and EGFR wild type non-squamous NSCLCs. These data support the hypothesis that tumor bio-molecular characteristics and genotype may influence the metastatic process in NSCLC and might help the development of enrichment strategies for tumor genotyping in these tumors, especially in the presence of limited tissue availability.
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Affiliation(s)
- Alessandro Russo
- Medical Oncology Unit A.O. Papardo & Department of Human Pathology University of Messina, Italy
| | - Tindara Franchina
- Medical Oncology Unit A.O. Papardo & Department of Human Pathology University of Messina, Italy
| | | | | | - Antonino Scimone
- Medical Oncology Unit A.O. Papardo & Department of Human Pathology University of Messina, Italy
| | - Giuseppe Chiofalo
- Medical Oncology Unit A.O. Papardo & Department of Human Pathology University of Messina, Italy
| | - Antonio Giordano
- Department of Medicine, Surgery and Neuroscience, University of Siena and Istituto Toscano Tumori (ITT), Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia PA, USA
| | - Vincenzo Adamo
- Medical Oncology Unit A.O. Papardo & Department of Human Pathology University of Messina, Italy
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Sakai K, Ukita M, Schmidt J, Wu L, De Velasco MA, Roter A, Jevons L, Nishio K, Mandai M. Clonal composition of human ovarian cancer based on copy number analysis reveals a reciprocal relation with oncogenic mutation status. Cancer Lett 2017; 405:22-28. [PMID: 28734796 DOI: 10.1016/j.canlet.2017.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 12/17/2022]
Abstract
Intratumoral heterogeneity of cancer cells remains largely unexplored. Here we investigated the composition of ovarian cancer and its biological relevance. A whole-genome single nucleotide polymorphism array was applied to detect the clonal composition of 24 formalin-fixed, paraffin-embedded samples of human ovarian cancer. Genome-wide segmentation data consisting of the log2 ratio (log2R) and B allele frequency (BAF) were used to calculate an estimate of the clonal composition number (CC number) for each tumor. Somatic mutation profiles of cancer-related genes were also determined for the same 24 samples by next-generation sequencing. The CC number was estimated successfully for 23 of the 24 cancer samples. The mean ± SD value for the CC number was 1.7 ± 1.1 (range of 0-4). A somatic mutation in at least one gene was identified in 22 of the 24 ovarian cancer samples, with the mutations including those in the oncogenes KRAS (29.2%), PIK3CA (12.5%), BRAF (8.3%), FGFR2 (4.2%), and JAK2 (4.2%) as well as those in the tumor suppressor genes TP53 (54.2%), FBXW7 (8.3%), PTEN (4.2%), and RB1 (4.2%). Tumors with one or more oncogenic mutations had a significantly lower CC number than did those without such a mutation (1.0 ± 0.8 versus 2.3 ± 0.9, P = 0.0027), suggesting that cancers with driver oncogene mutations are less heterogeneous than those with other mutations. Our results thus reveal a reciprocal relation between oncogenic mutation status and clonal composition in ovarian cancer using the established method for the estimation of the CC number.
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Affiliation(s)
- Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Masayo Ukita
- Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | | | - Longyang Wu
- Thermo Fisher Scientific, 3420 Central Expy, Santa Clara, USA
| | - Marco A De Velasco
- Department of Genome Biology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka, 589-8511, Japan
| | - Alan Roter
- Thermo Fisher Scientific, 3420 Central Expy, Santa Clara, USA
| | - Luis Jevons
- Thermo Fisher Scientific, 3420 Central Expy, Santa Clara, USA
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka, 589-8511, Japan.
| | - Masaki Mandai
- Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, 377-2 Ohno-higashi, Osaka-Sayama, Osaka, 589-8511, Japan
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Cremonesi M, Gilardi L, Ferrari ME, Piperno G, Travaini LL, Timmerman R, Botta F, Baroni G, Grana CM, Ronchi S, Ciardo D, Jereczek-Fossa BA, Garibaldi C, Orecchia R. Role of interim 18F-FDG-PET/CT for the early prediction of clinical outcomes of Non-Small Cell Lung Cancer (NSCLC) during radiotherapy or chemo-radiotherapy. A systematic review. Eur J Nucl Med Mol Imaging 2017; 44:1915-1927. [PMID: 28681192 DOI: 10.1007/s00259-017-3762-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 06/14/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Non-Small Cell Lung Cancer (NSCLC) is characterized by aggressiveness and includes the majority of thorax malignancies. The possibility of early stratification of patients as responsive and non-responsive to radiotherapy with a non-invasive method is extremely appealing. The distribution of the Fluorodeoxyglucose (18F-FDG) in tumours, provided by Positron-Emission-Tomography (PET) images, has been proved to be useful to assess the initial staging of the disease, recurrence, and response to chemotherapy and chemo-radiotherapy (CRT). OBJECTIVES In the last years, particular efforts have been focused on the possibility of using ad interim 18F-FDG PET (FDGint) to evaluate response already in the course of radiotherapy. However, controversial findings have been reported for various malignancies, although several results would support the use of FDGint for individual therapeutic decisions, at least in some pathologies. The objective of the present review is to assemble comprehensively the literature concerning NSCLC, to evaluate where and whether FDGint may offer predictive potential. METHODS Several searches were completed on Medline and the Embase database, combining different keywords. Original papers published in the English language from 2005 to 2016 with studies involving FDGint in patients affected by NSCLC and treated with radiation therapy or chemo-radiotherapy only were chosen. RESULTS Twenty-one studies out of 970 in Pubmed and 1256 in Embase were selected, reporting on 627 patients. CONCLUSION Certainly, the lack of univocal PET parameters was identified as a major drawback, while standardization would be required for best practice. In any case, all these papers denoted FDGint as promising and a challenging examination for early assessment of outcomes during CRT, sustaining its predictivity in lung cancer.
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Affiliation(s)
- Marta Cremonesi
- Radiation Research Unit, European Institute of Oncology, Milano, Italy.
| | - Laura Gilardi
- Division of Nuclear Medicine, European Institute of Oncology, Milano, Italy
| | | | - Gaia Piperno
- Division of Radiation Oncology, European Institute of Oncology, Milano, Italy
| | | | - Robert Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Francesca Botta
- Medical Physics Unit, European Institute of Oncology, Milano, Italy
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milano, Italy
| | - Chiara Maria Grana
- Division of Nuclear Medicine, European Institute of Oncology, Milano, Italy
| | - Sara Ronchi
- Division of Radiation Oncology, European Institute of Oncology, Milano, Italy
| | - Delia Ciardo
- Division of Radiation Oncology, European Institute of Oncology, Milano, Italy
| | - Barbara Alicja Jereczek-Fossa
- Division of Radiation Oncology, European Institute of Oncology, Milano, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milano, Italy
| | | | - Roberto Orecchia
- Department of Oncology and Hemato-Oncology, University of Milan, Milano, Italy.,Department of Medical Imaging and Radiation Sciences, European Institute of Oncology, Milano, Italy
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Liang JY, Tong F, Gu FF, Liu YY, Zeng YL, Hong XH, Zhang K, Liu L. Marked response to nab-paclitaxel in EGFR mutated lung neuroendocrine carcinoma: A case report. Medicine (Baltimore) 2017; 96:e6985. [PMID: 28538405 PMCID: PMC5457885 DOI: 10.1097/md.0000000000006985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Lung cancer is the leading cause of cancer-related death in the world. Tyrosine kinase inhibitors (TKIs), which target mutated epidermal growth factor receptor (EGFR), have been the first-line treatment of late-stage lung adenocarcinoma harboring EGFR mutation. EGFR mutations are mostly identified in lung adenocarcinoma. However, it is rarely seen in lung neuroendocrine carcinoma, and treatment strategies remain under reported. PATIENT CONCERNS Here, we describe a 54-year-old Chinese man diagnosed with lung adenocarcinoma (cT4N3M1b, stage IV) with neuroendocrine differentiation and L858R mutation on exon 21. He developed progressive disease in liver 4 months later, and the biopsy of liver metastases showed neuroendocrine carcinoma maintained the same EGFR mutation. DIAGNOSES Lung adenocarcinoma and neuroendocrine carcinoma were identified by biopsy. INTERVENTIONS After a combined treatment with nab-paclitaxel and erlotinib, the patient achieved partial remission. OUTCOMES The patient's overall survival was 27 months. LESSONS This case highlights that EGFR mutated lung neuroendocrine carcinoma is not responsive to single-agent EGFR-TKI. However, combined application with nab-paclitaxel can improve its efficacy and prolong the patient's survival.
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28
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Impact of Cytological Sampling on EGFR Mutation Testing in Stage III-IV Lung Adenocarcinoma. LUNG CANCER INTERNATIONAL 2017; 2017:9614938. [PMID: 28367333 PMCID: PMC5359447 DOI: 10.1155/2017/9614938] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/16/2017] [Accepted: 02/20/2017] [Indexed: 12/22/2022]
Abstract
Objectives. There have been advances in the identification and understanding of molecular subsets of lung cancer, defined by specific oncogenic aberrations. A number of actionable genetic alterations have been identified, such as the epidermal growth factor receptor (EGFR) mutation. We aimed to establish the reasons why patients were not undergoing EGFR mutation testing at the time of histological diagnosis. Methods. The records of 70 patients with advanced adenocarcinoma of the lung managed through a single multidisciplinary team at a single institution were reviewed. Data were collected on method of tumour sample collection, whether this was sent for EGFR testing, and the result. Results. Seventy patients were identified. In 21/25 (84%) cases, cytological sampling was sufficient for EGFR mutation analysis, compared with 40/45 (89%) cases with histological sampling. EGFR mutation testing was not carried out in 22/70 (31.4%) patients. There was insufficient tumour sample for EGFR testing in 9/22 (40.9%) patients. Other reasons for not testing included poor patient fitness and problems in the diagnostic pathway. Conclusions. In this series, cytological tumour sampling was not the predominant reason why cancers failed to have EGFR mutation status established.
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Spigel DR, Luft A, Depenbrock H, Ramlau R, Khalil M, Kim JH, Mayo C, Chao GY, Obasaju C, Natale R. An Open-Label, Randomized, Controlled Phase II Study of Paclitaxel-Carboplatin Chemotherapy With Necitumumab Versus Paclitaxel-Carboplatin Alone in First-Line Treatment of Patients With Stage IV Squamous Non-Small-Cell Lung Cancer. Clin Lung Cancer 2017; 18:480-488. [PMID: 28365238 DOI: 10.1016/j.cllc.2017.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/08/2017] [Accepted: 02/21/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND The combination of necitumumab with gemcitabine-cisplatin significantly improved overall survival (OS) in patients with stage IV squamous non-small-cell lung cancer (NSCLC), in the phase III SQUamous NSCLC treatment with the Inhibitor of EGF REceptor (SQUIRE) trial. Paclitaxel-carboplatin was selected as an alternative standard of care in the current phase II study. PATIENTS AND METHODS Patients were randomized (stratified according to Eastern Cooperative Oncology Group performance status and sex) 2:1 to ≤ six 3-week cycles (Q3W) of paclitaxel and carboplatin with or without necitumumab. Chemotherapy was paclitaxel 200 mg/m2 on day 1 Q3W and carboplatin area under the curve 6 on day 1 Q3W. Necitumumab 800 mg, on days 1 and 8, was continued until disease progression or intolerable toxicity occurred. The primary end point was objective response rate (ORR) on the basis of Response Evaluation Criteria In Solid Tumors version 1.1. RESULTS One hundred sixty-seven patients were randomized to the necitumumab-containing arm (n = 110) or the chemotherapy-only arm (n = 57). The combination of necitumumab with chemotherapy resulted in an ORR of 48.9% versus 40.0%. Median progression-free survival and OS were 5.4 versus 5.6 months (hazard ratio [HR], 1.0) and 13.2 versus 11.2 months (HR, 0.83; P = .379) in each treatment arm, respectively. Disease control rate was 87.2% versus 84.0%. Grade ≥ 3 adverse events typically associated with epidermal growth factor receptor (EGFR) monoclonal antibodies showing a > 2% increase were hypomagnesemia (5.7% vs. 0) and rash (2.8% vs. 0). Any Grade thromboembolic events occurred in < 4% of patients in either arm. CONCLUSION The results of our study support previously reported results that the combination of necitumumab with chemotherapy improves survival in patients with advanced squamous NSCLC and shows a safety profile consistent with that of EGFR monoclonal antibodies.
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Affiliation(s)
| | - Alexander Luft
- Leningrad Regional Clinical Hospital, St Petersburg, Russia
| | | | - Rodryg Ramlau
- Department of Oncology, Poznań University of Medical Sciences, Poznań, Poland
| | | | - Joo-Hang Kim
- CHA Bundang Medical Center, CHA University, Gyeonggi-do, Korea
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Socinski MA, Pennell NA. Best Practices in Treatment Selection for Patients With Advanced NSCLC. Cancer Control 2017; 23:2-14. [PMID: 27842052 DOI: 10.1177/1073274816023004s01] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Worldwide, lung cancer is the most prevalent form of cancer, and its non-small-cell subtype constitutes up to 85% of cases. Overall, lung cancer is the most common cause of cancer-related death in the United States for both sexes, and its 5-year survival rate is 17%. It is a heterogeneous disease characterized by a variety of biomarkers and differing histologies. Non-small-cell lung cancer may be squamous or nonsquamous in nature and fueled by a number of oncodrivers. Obtaining sufficient tissue during biopsy to perform thorough biomarker testing is a challenge but essential for the modern, targeted therapeutic environment. Although platinum-based doublets still play a major role in first-line treatment, novel therapeutic agent targeting BRAF, EGFR, ALK, and ROS1, as well as agents targeting the T790M mutation, may offer options for patients whose disease fails to respond to initial therapy or relapses following an initial response. The emergence of immunotherapy as second-line standard therapy has changed the treatment paradigm. Some patients will have more favorable outcomes in the first-line setting with immunotherapy. However, managing lung cancer has become more complex than it was 15 years ago when the challenge of treatment was seen as being only binary, ie, small-cell vs non-small-cell disease.
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Pathak A, Rajappa S, Gore A. Oncogenic drivers in nonsmall cell lung cancer and resistance to epidermal growth factor receptor tyrosine kinase inhibitors. Indian J Cancer 2017; 54:S1-S8. [DOI: 10.4103/ijc.ijc_505_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kikuchi M, Ohtani T, Tamura T, Satoh H. Palliative sequential chemoradiotherapy for pulmonary sulcus tumor: A case report. Mol Clin Oncol 2016; 5:651-652. [PMID: 27900105 DOI: 10.3892/mco.2016.1026] [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: 05/17/2016] [Accepted: 08/25/2016] [Indexed: 11/05/2022] Open
Abstract
Pulmonary sulcus tumors are occasionally encountered in non-small-cell lung cancer (NSCLC) patients. If the patients have a good clinical condition, concurrent chemoradiotherapy is indicated. However, palliative chemotherapy and chemoradiotherapy for patients exhibiting a poor overall condition have not been reported to date. We herein report the case of a 54-year-old female patient with a pulmonary sulcus tumor, who had a poor performance status. The patient received sequential chemoradiotherapy, with no severe complications. There was no local recurrence until the time of death, 8 months after the initiation of therapy. Palliative sequential chemoradiotherapy for pulmonary sulcus NSCLC must be effective and carry low risk of complications. Palliative sequential chemoradiotherapy may be considered in certain patients with pulmonary sulcus NSCLC. Either chemotherapy or radiotherapy is administered first and, if there is no apparent deterioration of the patient's general condition, the next treatment modality is administered.
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Affiliation(s)
- Miki Kikuchi
- Division of Nursing, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Toshihiro Ohtani
- Division of Pharmacy, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Tomohiro Tamura
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Hiroaki Satoh
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
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33
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EGFR Testing in Advanced Non–Small-Cell Lung Cancer, A Mini-Review. Clin Lung Cancer 2016; 17:483-492. [DOI: 10.1016/j.cllc.2016.05.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 05/27/2016] [Accepted: 05/31/2016] [Indexed: 11/20/2022]
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Nakahara Y, Takagi Y, Hosomi Y, Kagei A, Yamamoto T, Sawada T, Yomota M, Okuma Y, Mikura S, Okamura T. Noninvasive monitoring of the genetic evolution of EGFR-mutant non-small-cell lung cancer by analyzing circulating tumor DNA during combination chemotherapy with gefitinib and pemetrexed or S-1. Onco Targets Ther 2016; 9:5287-95. [PMID: 27601920 PMCID: PMC5004997 DOI: 10.2147/ott.s105976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Repetitive genotyping is useful to assess the genetic evolution of non-small-cell lung cancer (NSCLC) during treatment, but the need for sampling by biopsy is a major obstacle. Digital polymerase chain reaction (PCR) is a promising procedure for the detection of mutant alleles in plasma of cancer patients. Methods This prospective study enrolled patients with NSCLC and known epidermal growth factor receptor (EGFR) mutations and who had experienced disease progression during ongoing EGFR-tyrosine kinase inhibitor (TKI) therapy. Eligible patients received daily gefitinib and either pemetrexed or S-1 every 3 weeks until disease progression or the development of unacceptable toxicity. Peripheral blood was collected before and after the combination therapy for digital PCR and hepatocyte growth factor measurement. Results From May 2012 to January 2014, nine patients with a median age of 67 (range 52–80) years were enrolled. Patterns of disease progression during adjacent EGFR-TKI therapy were acquired resistance, observed in seven patients, and primary resistance, observed in two patients. Known EGFR mutations were detected in plasma samples of six (67%) patients at study enrollment. Of these, T790M mutation was concurrently detected in three (50%) patients. Four patients underwent gefitinib plus pemetrexed therapy, and five patients underwent gefitinib and S-1 therapy. The median number of cycles delivered was five, and the median progression-free survival was 5.7 months. Efficacy outcomes did not differ between treatments. After the combination therapy, plasma T790M status changed to positive in two patients. Hepatocyte growth factor level did not significantly change through the combination therapy. Conclusion The usefulness of monitoring the genetic evolution of EGFR-driven tumors using noninvasive procedures was demonstrated. Since continuation of EGFR-TKI therapy with cytotoxic agents has an acceptable tolerability and a possibility of inducing T790M mutation, the combination therapy may be useful for EGFR-mutant NSCLC resistant to EGFR-TKI therapy without T790M mutation.
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Affiliation(s)
- Yoshiro Nakahara
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo; Department of Respiratory Medicine, Kitasato University School of Medicine, Sagamihara
| | - Yusuke Takagi
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo; Oncology Scientific Affairs, Merck Sharp & Dohme Corp
| | - Yukio Hosomi
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo
| | | | | | - Takeshi Sawada
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo
| | - Makiko Yomota
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo
| | - Yusuke Okuma
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo
| | - Shinichiro Mikura
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo; Department of Respiratory Medicine, Fujieda Municipal General Hospital, Fujieda, Japan
| | - Tatsuru Okamura
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo
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Shinoda M, Akutsu H, Ohtani T, Tamura T, Satoh H. Lower limb lymphedema in lung adenocarcinoma: Two case reports. Mol Clin Oncol 2016; 5:478-479. [PMID: 27699046 DOI: 10.3892/mco.2016.988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/04/2016] [Indexed: 12/25/2022] Open
Abstract
Breast and gynecological cancers and their treatment may cause lymphedema of the upper and lower extremities, respectively. We herein report the cases of two patients with lung adenocarcinoma who developed lymphedema of the lower extremities. One patient harbored an epidermal growth factor receptor mutation and the other patient harbored an anaplastic lymphoma kinase fusion gene. The patients had developed intra-abdominal lymph node metastases and received several lines of chemotherapy. In both patients, lymphedema in the lower extremities developed >30 months after the initiation of first-line chemotherapy. To the best of our knowledge, these are the first reported cases of lung cancer patients who developed lymphedema in the lower extremities. Although rarely, lymphedema of the lower extremities may develop long after successful therapy with molecular-targeted therapy in advanced lung adenocarcinoma patients with a specific genetic etiological background.
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Affiliation(s)
- Misae Shinoda
- Division of Nursing, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Haruka Akutsu
- Division of Nursing, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Toshihiro Ohtani
- Division of Pharmacy, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Tomohiro Tamura
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
| | - Hiroaki Satoh
- Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan
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Costa DB. Kinase inhibitor-responsive genotypes in EGFR mutated lung adenocarcinomas: moving past common point mutations or indels into uncommon kinase domain duplications and rearrangements. Transl Lung Cancer Res 2016; 5:331-7. [PMID: 27413714 DOI: 10.21037/tlcr.2016.06.04] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The most frequent epidermal growth factor receptor (EGFR) mutations found by traditional or comprehensive molecular profiling of lung adenocarcinomas include indels of exon 19 (the exon 19 deletion delE746_A750 being the most common) and the exon 21 L858R point mutation. The current approval labels for first line palliative gefitinib 250 mg/day, erlotinib 150 mg/day and afatinib 40 mg/day for advanced lung cancers require the presence of the aforementioned classical/sensitizing EGFR mutations. Other gefitinib, erlotinib and afatinib sensitizing mutations include exon 18 indels, G719X, exon 19 insertions, A763_Y764insFQEA, S768I and L861Q; for which off-label EGFR kinase inhibitor use is generally agreed upon by thoracic oncologists. The main biological mechanism of resistance to approved first line EGFR inhibitors is the selection/acquisition of EGFR-T790M that in itself can be inhibited by osimertinib 80 mg/day, a 3(rd) generation EGFR inhibitor that is bypassed by EGFR-C797X mutations. Another class of de novo inhibitor insensitive mutation includes EGFR exon 20 insertions. More recently, the dichotomy of only point mutations or indels explaining aberrant kinase activation of EGFR plus inhibitor response has been shattered by the discovery of uncommon (<0.5% of all EGFR mutations) genomic events involving exon 18-25 kinase domain duplications (KDD) and rearrangements (EGFR-RAD51 or EGFR-PURB). The latter lead to oncogene addiction, enhanced sensitivity to kinase inhibitors in vitro and clinical responses to approved EGFR inhibitors. The enhanced landscape of EGFR inhibitor-responsive genotypes highlights that comprehensive molecular profiling may be necessary to maximize the identification of all cases that can benefit from precision oncology.
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Affiliation(s)
- Daniel B Costa
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Gerber DE. Performance Status-Based Oncology Practice Guidelines: Easier Said Than Done. J Oncol Pract 2016; 12:597-9. [PMID: 27328797 DOI: 10.1200/jop.2016.013128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- David E Gerber
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX
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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.
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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
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Yang Y, Zhang B, Li R, Liu B, Wang L. EGFR-tyrosine kinase inhibitor treatment in a patient with advanced non-small cell lung cancer and concurrent exon 19 and 21 EGFR mutations: A case report and review of the literature. Oncol Lett 2016; 11:3546-3550. [PMID: 27123149 DOI: 10.3892/ol.2016.4409] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 03/09/2016] [Indexed: 11/06/2022] Open
Abstract
Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are considered to be effective treatments for advanced non-small cell lung cancer (NSCLC) patients with sensitizing EGFR mutations, including exon 19 deletion and exon 21 L858R mutations. However, with the development of EGFR mutation detection assays, patients with complex EGFR mutations are emerging, and their response to EGFR-TKIs remains unclear. The present study reports a case of a 62-year-old, non-smoking female patient with advanced NSCLC, presenting with concurrent EGFR 19+21 sensitizing mutations, who had a poor response to the first-line EGFR-TKI erlotinib and succumbed 5 months subsequent to diagnosis. Furthermore, the present study performed a literature review, and 18 patients with complex EGFR 19+21 mutations that had received EGFR-TKIs were identified. The majority of these patients responded well to EGFR-TKIs. To the best of our knowledge, the present case is the first to report a patient with lung adenocarcinoma with complex EGFR 19+21 sensitizing mutations that had a poor clinical response to a first-line EGFR-TKI. Despite the 70% response rate of sensitizing EGFR-mutant NSCLCs to EGFR-TKIs, there is still a proportion of patients that experience de novo resistance, and heterogeneity is likely to be important in this resistance mechanism. Therefore, comprehensive genomic detection assays and multi-targeted therapies for patients with NSCLC with complex EGFR mutations require additional investigation.
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Affiliation(s)
- Yang Yang
- The Comprehensive Cancer Center of Drum-Tower Hospital, Nanjing University Medical School and Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Biao Zhang
- Department of Pathology, Drum-Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Rutian Li
- The Comprehensive Cancer Center of Drum-Tower Hospital, Nanjing University Medical School and Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Baorui Liu
- The Comprehensive Cancer Center of Drum-Tower Hospital, Nanjing University Medical School and Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
| | - Lifeng Wang
- The Comprehensive Cancer Center of Drum-Tower Hospital, Nanjing University Medical School and Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu 210008, P.R. China
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Al-Temaimi R, Kapila K, Al-Mulla FR, Francis IM, Al-Waheeb S, Al-Ayadhy B. Epidermal growth factor receptor mutations in nonsmall cell lung carcinoma patients in Kuwait. J Cytol 2016; 33:1-6. [PMID: 27011433 PMCID: PMC4782395 DOI: 10.4103/0970-9371.175476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
CONTEXT Nonsmall cell lung carcinoma (NSCLC) is the most frequently diagnosed form of lung cancer in Kuwait. NSCLC samples from Kuwait have never been screened for epidermal growth factor receptor (EGFR) gene aberration, which is known to affect treatment options. AIMS This study investigated the feasibility of using fine-needle aspiration (FNA) material for mutational screening, and whether common EGFR mutations are present in NSCLC samples from Kuwait. SETTINGS AND DESIGN Eighteen NSCLC samples from five Kuwaitis and 13 non-Kuwaitis were included in this study. MATERIALS AND METHODS DNA was extracted from FNA cell blocks and screened for EGFR gene mutations using peptide nucleic acid (PNA)-clamp assay, and EGFR gene amplification using fluorescent in situ hybridization (EGFR-FISH). EGFR protein expression was assessed using immunohistochemistry. RESULTS Five EGFR mutations were detected in five non-Kuwaiti NSCLC patients (27.8%). EGFR gene amplification was evident in 10 samples (55.5%) by direct amplification or under the influence of chromosomal polysomy. Four samples had EGFR mutations and EGFR gene amplification, out of which only one sample had coexisting EGFR overexpression. CONCLUSIONS Given the evidence of EGFR gene alterations occurring in NSCLC patients in Kuwait, there is a need to incorporate EGFR gene mutational screen for NSCLC patients to implement its consequent use in patient treatment.
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Affiliation(s)
- Rabeah Al-Temaimi
- Department of Pathology, Human Genetics Unit, Kuwait University, Safat, Kuwait
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Mohar B, Smojver Ježek S, Rajković Molek K, Štemberger C, Kurpis M, Kupanovac Ž, Samaržija M, Jonjić N, Grahovac B. Detection of an EGFR mutation in cytological specimens of lung adenocarcinoma. Cytopathology 2016; 27:444-451. [DOI: 10.1111/cyt.12325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2015] [Indexed: 11/27/2022]
Affiliation(s)
- B. Mohar
- Department of Pathology; School of Medicine; University of Rijeka; Rijeka Croatia
| | - S. Smojver Ježek
- Department of Pathology and Cytology; Jordanovac Pulmonary Cytology Division; Zagreb University Hospital Center; School of Medicine; University of Zagreb; Zagreb Croatia
| | - K. Rajković Molek
- Department of Cytology; Rijeka University Hospital Center; Rijeka Croatia
| | - C. Štemberger
- Department of Cytology; Rijeka University Hospital Center; Rijeka Croatia
| | - M. Kurpis
- Department of Pulmonology; Rijeka University Hospital Center; Rijeka Croatia
| | - Ž. Kupanovac
- Department of Pulmonology; Rijeka University Hospital Center; Rijeka Croatia
| | - M. Samaržija
- Jordanovac University Hospital for Lung Diseases; School of Medicine; University of Zagreb; Zagreb Croatia
| | - N. Jonjić
- Department of Pathology; School of Medicine; University of Rijeka; Rijeka Croatia
| | - B. Grahovac
- Department of Pathology; School of Medicine; University of Rijeka; Rijeka Croatia
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Mendes R, Carreira B, Baptista PV, Fernandes AR. Non-small cell lung cancer biomarkers and targeted therapy - two faces of the same coin fostered by nanotechnology. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2016. [DOI: 10.1080/23808993.2016.1159914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Atkins MB, Larkin J. Immunotherapy Combined or Sequenced With Targeted Therapy in the Treatment of Solid Tumors: Current Perspectives. ACTA ACUST UNITED AC 2016; 108:djv414. [DOI: 10.1093/jnci/djv414] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 12/09/2015] [Indexed: 11/13/2022]
Affiliation(s)
- Michael B. Atkins
- Affiliations of authors: Georgetown-Lombardi Comprehensive Cancer Center , Washington, DC (MBA); Royal Marsden Hospital , London , UK (JL)
| | - James Larkin
- Affiliations of authors: Georgetown-Lombardi Comprehensive Cancer Center , Washington, DC (MBA); Royal Marsden Hospital , London , UK (JL)
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Costa DB, Kobayashi SS. Whacking a mole-cule: clinical activity and mechanisms of resistance to third generation EGFR inhibitors in EGFR mutated lung cancers with EGFR-T790M. Transl Lung Cancer Res 2016; 4:809-15. [PMID: 26798593 DOI: 10.3978/j.issn.2218-6751.2015.05.05] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Epidermal growth factor receptor (EGFR) mutations, especially EGFR-exon 19 deletions and EGFR-L858R, are the most frequent actionable genomic events in lung adenocarcinomas. Tumors arise due to constitutively activated EGFR signaling and are susceptible to EGFR tyrosine kinase inhibitors (TKIs). First generation EGFR TKIs (gefitinib and erlotinib) and the second generation EGFR TKI afatinib are approved worldwide. Although targeted therapies against EGFR mutants induce dramatic initial responses, acquired resistance (through multiple biological mechanisms) to erlotinib, gefitinib and afatinib emerges within the first 1-2 years of continued monotherapy. EGFR-T790M accounts for more than half of acquired resistance to first or second generation EGFR TKIs by modifying ATP affinity and drug binding kinetics. Two new studies have shown that two covalent pyrimidine inhibitors-AZD9291 and rociletinib of EGFR-T790M (i.e., third generation EGFR TKIs) shown remarkable clinical activity in patients with acquired resistance to erlotinib, gefitinib and afatinib when the tumor carries EGFR-T790M in conjunction with an activating mutation. However, and regrettably, acquired resistance to these third generation EGFR TKIs has already been reported in preclinical models and clinical specimens; such as a tertiary mutation at EGFR-C797S that prevents covalent binding of EGFR TKIs. The experience with sequential EGFR TKI monotherapy highlights tumor heterogeneity and adaptability (i.e., relentless game of whack-a-mole played between TKIs and cancer), and will help shape future clinical development of novel combinatory approaches to manage EGFR mutated lung adenocarcinomas.
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Affiliation(s)
- Daniel B Costa
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Susumu S Kobayashi
- Department of Medicine, Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Seki Y, Fujiwara Y, Kohno T, Takai E, Sunami K, Goto Y, Horinouchi H, Kanda S, Nokihara H, Watanabe SI, Ichikawa H, Yamamoto N, Kuwano K, Ohe Y. Picoliter-Droplet Digital Polymerase Chain Reaction-Based Analysis of Cell-Free Plasma DNA to Assess EGFR Mutations in Lung Adenocarcinoma That Confer Resistance to Tyrosine-Kinase Inhibitors. Oncologist 2016; 21:156-64. [PMID: 26768482 DOI: 10.1634/theoncologist.2015-0288] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 11/03/2015] [Indexed: 01/29/2023] Open
Abstract
PURPOSE The objective of this study was to evaluate the utility of analyzing cell-free plasma DNA (cfDNA) by picoliter-droplet digital polymerase chain reaction (ddPCR) to detect EGFR mutations that confer resistance to tyrosine-kinase inhibitors (TKIs) used for treatment of lung adenocarcinoma (LADC). EXPERIMENTAL DESIGN Thirty-five LADC patients who received epidermal growth factor receptor (EGFR)-TKI therapy, including ten who received tumor rebiopsy after development of resistance, were subjected to picoliter-ddPCR-cfDNA analysis to determine the fraction of cfDNA with TKI-sensitive (L858R and inflame exon 19 deletions) and -resistant (i.e., T790M) mutations, as well as their concordance with mutation status in rebiopsied tumor tissues. RESULTS cfDNA samples from 15 (94%) of 16 patients who acquired resistance were positive for TKI-sensitive mutations. Also, 7 (44%) were positive for the T790M mutation, with fractions of T790M (+) cfDNA ranging from 7.4% to 97%. T790M positivity in cfDNA was consistent in eight of ten patients for whom rebiopsied tumor tissues were analyzed, whereas the remaining cases were negative in cfDNA and positive in rebiopsied tumors. Prior to EGFR-TKI therapy, cfDNAs from 9 (38%) and 0 of 24 patients were positive for TKI-sensitive and T790M mutations, respectively. Next-generation sequencing of cfDNA from one patient who exhibited innate resistance to TKI despite a high fraction of TKI-sensitive mutations and the absence of the T790M mutation in his cfDNA revealed the presence of the L747P mutation, a known driver of TKI resistance. CONCLUSION Picoliter-ddPCR examination of cfDNA, supported by next-generation sequencing analysis, enables noninvasive assessment of EGFR mutations that confer resistance to TKIs. IMPLICATIONS FOR PRACTICE Noninvasive monitoring of the predominance of tumors harboring the secondary T790M mutation in the activating mutation in EGFR gene is necessary for precise and effective treatment of lung adenocarcinoma. Because cells harboring the T790M mutation are resistant to epidermal growth factor receptor-tyrosine-kinase inhibitors (TKIs), the predominance of tumor cells harboring the T790M mutations influences the choice of whether to use conventional or next-generation TKIs. Digital polymerase chain reaction-based examination of cfDNA is a promising method; however, its feasibility, including its consistency with examination of rebiopsied tumor tissue, has not been fully proven. Here, picoliter-droplet digital polymerase chain reaction technology is presented as a candidate method for testing cfDNA and assessing the predominance of T790M-mutant tumors.
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Affiliation(s)
- Yoshitaka Seki
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Yutaka Fujiwara
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - Erina Takai
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Kuniko Sunami
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Yasushi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hidehito Horinouchi
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Shintaro Kanda
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroshi Nokihara
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Shun-ichi Watanabe
- Department of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Hitoshi Ichikawa
- Division of Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Noboru Yamamoto
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kazuyoshi Kuwano
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Yuichiro Ohe
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
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Rooney C, Sethi T. Advances in molecular biology of lung disease: aiming for precision therapy in non-small cell lung cancer. Chest 2016; 148:1063-1072. [PMID: 26182407 DOI: 10.1378/chest.14-2663] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Lung cancer is the principal cause of cancer-related mortality in the developed world, accounting for almost one-quarter of all cancer deaths. Traditional treatment algorithms have largely relied on histologic subtype and have comprised pragmatic chemotherapy regimens with limited efficacy. However, because our understanding of the molecular basis of disease in non-small cell lung cancer (NSCLC) has improved exponentially, it has become apparent that NSCLC can be radically subdivided, or molecularly characterized, based on recurrent driver mutations occurring in specific oncogenes. We know that the presence of such mutations leads to constitutive activation of aberrant signaling proteins that initiate, progress, and sustain tumorigenesis. This persistence of the malignant phenotype is referred to as "oncogene addiction." On this basis, a paradigm shift in treatment approach has occurred. Rational, targeted therapies have been developed, the first being tyrosine kinase inhibitors (TKIs), which entered the clinical arena > 10 years ago. These were tremendously successful, significantly affecting the natural history of NSCLC and improving patient outcomes. However, the benefits of these drugs are somewhat limited by the emergence of adaptive resistance mechanisms, and efforts to tackle this phenomenon are ongoing. A better understanding of all types of oncogene-driven NSCLC and the occurrence of TKI resistance will help us to further develop second- and third-generation small molecule inhibitors and will expand our range of precision therapies for this disease.
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Affiliation(s)
- Claire Rooney
- Division of Asthma, Allergy and Lung Biology, King's College London, London, England
| | - Tariq Sethi
- Division of Asthma, Allergy and Lung Biology, King's College London, London, England; Department of Respiratory Medicine, King's Health Partners, London, England.
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Jorge SE, Schulman S, Freed JA, VanderLaan PA, Rangachari D, Kobayashi SS, Huberman MS, Costa DB. Responses to the multitargeted MET/ALK/ROS1 inhibitor crizotinib and co-occurring mutations in lung adenocarcinomas with MET amplification or MET exon 14 skipping mutation. Lung Cancer 2015; 90:369-74. [PMID: 26791794 PMCID: PMC4724060 DOI: 10.1016/j.lungcan.2015.10.028] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 10/04/2015] [Accepted: 10/26/2015] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Genomic aberrations involving ALK, ROS1 and MET can be driver oncogenes in lung adenocarcinomas. Identification of tyrosine kinase inhibitors (TKIs) with activity against these tumors and of preclinical systems to model response are warranted. METHODS We analyzed cases with lung adenocarcinomas for representative genomic aberrations, evaluated the response to the multitargeted MET/ALK/ROS1 crizotinib TKI in cases with MET aberrations and profiled lung cancer cell lines with the aforementioned genomic changes. RESULTS Lung cancer cell lines with ALK rearrangement, ROS1 rearrangement or MET amplification had expected in vitro responses to crizotinib and the ALK/ROS1 TKI ceritinib. However, a commercially-available cell line with MET exon 14 skipping mutation and co-occurring PIK3CA-p.Glu545Lys mutation did not respond to crizotinib; suggesting the latter abrogated response. 10% of MET exon 14 skipping mutation co-occurred with PIK3CA mutation in the TCGA cohort. Putative crizotinib-responsive somatic mutations (ALK rearrangements, ROS1 rearrangements, high level MET amplification or MET exon 14 skipping mutations) were present in 10% of lung adenocarcinomas analyzed at our service and in 9.5% of the TCGA lung adenocarcinoma database. One patient each whose advanced tumors harbored high level MET amplification with wild-type PIK3CA or MET exon 14 skipping mutation with PIK3CA-p.Glu542Lys had significant responses to crizotinib; suggesting that PIK3CA co-mutation did not affect clinical response. CONCLUSIONS Approximately 10% of lung adenocarcinomas harbor aberrations that are targetable using the approved multitargeted TKI crizotinib. MET exon 14 skipping mutation predicts for response to MET TKIs in human lung adenocarcinomas but co-occurrence of PIK3CA mutation needs to be better evaluated as a modifier of response to TKI therapy. MET TKIs should not be omitted from MET exon 14 skipping mutated tumors until further preclinical and clinical data can confirm or refute mechanisms of primary or acquired resistance to crizotinib and other MET TKIs in these recalcitrant cancers.
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Affiliation(s)
- Susan E Jorge
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Sol Schulman
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Jason A Freed
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Paul A VanderLaan
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Deepa Rangachari
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Susumu S Kobayashi
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Mark S Huberman
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Daniel B Costa
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
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Shea M, Costa DB, Rangachari D. Management of advanced non-small cell lung cancers with known mutations or rearrangements: latest evidence and treatment approaches. Ther Adv Respir Dis 2015; 10:113-29. [PMID: 26620497 DOI: 10.1177/1753465815617871] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Precision oncology is now the evidence-based standard of care for the management of many advanced non-small cell lung cancers (NSCLCs). Expert consensus has defined minimum requirements for routine testing and identification of epidermal growth factor (EGFR) mutations (15% of tumors harbor EGFR exon 19 deletions or exon 21 L858R substitutions) and anaplastic lymphoma kinase (ALK) rearrangements (5% of tumors) in advanced lung adenocarcinomas (ACs). Application of palliative targeted therapies with oral tyrosine kinase inhibitors (TKIs) in advanced/metastatic lung ACs harboring abnormalities in EGFR (gefitinib, erlotinib, afatinib) and ALK/ROS1/MET (crizotinib) has consistently led to more favorable outcomes compared with traditional cytotoxic agents. In addition, mutations leading to resistance to first-line EGFR and ALK TKIs can now be successfully inhibited by soon to be approved third-generation EGFR TKIs (osimertinib, rociletinib) and second-generation ALK TKIs (ceritinib, alectinib). Notably, increasing feasibility, accessibility, and application of molecular profiling technologies has permitted dynamic growth in the identification of actionable driver oncogenes. Emerging genomic aberrations for which TKIs have shown impressive results in clinical trials and expansion of drug labels for approved agents are awaited include ROS1 rearrangements (1-2% of tumors, drug: crizotinib) and BRAF-V600E mutations (1-3% of tumors, drugs: vemurafenib, dafrafenib + trametinib). Evolving genomic events in which TKI responses have been reported in smaller series include MET exon 14 skipping mutations (2-4% of tumors, drug: crizotinib); high-level MET amplification (1-2% of tumors, drug: crizotinib); RET rearrangements (1% of tumors, drug: cabozantinib); and ERBB2 mutations (2-3% of tumors, drug: afatinib), among others. Unfortunately, the most common genomic event in NSCLC, KRAS mutations (25-30% of tumors), is not targetable with approved or in development small molecule inhibitors. Here, we review currently approved, emerging, and evolving systemic precision therapies matched with their driver oncogenes for the management of advanced NSCLC.
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Affiliation(s)
- Meghan Shea
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School; Boston, MA, USA
| | - Daniel B Costa
- Division of Hematology/Oncology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School; Boston, MA, USA
| | - Deepa Rangachari
- Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Shapiro 9, Boston, MA 02215, USA
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Loong HH, Mok K, Leung LKS, Mok TSK. Crizotinib in the management of advanced-stage non-small-cell lung cancer. Future Oncol 2015; 11:735-45. [PMID: 25757678 DOI: 10.2217/fon.14.314] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Rearrangement of ALK gene has been identified as exerting a potent transforming effect as driver oncogene in patients with non-small-cell lung cancer (NSCLC). Crizotinib is a small-molecule oral inhibitor of ALK, c-Met/HGF receptor and ROS1 receptor kinases. Its efficacy in ALK-rearranged NSCLC has been established. Crizotinib's effect on ROS1 receptor kinases and c-Met with relevance to NSCLC is also actively being explored. Resistance mechanisms such as secondary gatekeeper mutations in ALK gene and activation of other oncogenes have been identified to confer acquired resistance to crizotinib. This article reviews the pharmacological properties of crizotinib, preclinical and clinical results that led to its approval in ALK-positive NSCLC and current directions of clinical research in overcoming crizotinib resistance.
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Affiliation(s)
- Herbert H Loong
- Department of Clinical Oncology, State Key Laboratory in Oncology in South China, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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Normando SRC, Cruz FM, Del Giglio A. Cumulative meta-analysis of epidermal growth factor receptor-tyrosine kinase inhibitors as first-line therapy in metastatic non-small-cell lung cancer. Anticancer Drugs 2015; 26:995-1003. [PMID: 26237501 DOI: 10.1097/cad.0000000000000268] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We carried out a meta-analysis to evaluate the benefit of epidermal growth factor-tyrosine kinase inhibitors (EGFR-TKI) over the standard first-line platinum-based chemotherapy for metastatic non-small-cell lung cancer (NSCLC). Studies that were considered eligible included controlled prospective randomized phase III studies in patients with NSCLC stages IIIB or IV. These patients received standard first-line platinum-based chemotherapy or EGFR-TKI; overall survival and progression-free survival (PFS) with adequate data were available to calculate and estimate the hazard ratio (HR) with a confidence interval (CI) of 95%. Eight studies were identified that compared EGFR-TKI versus standard first-line platinum-based chemotherapy to treat NSCLC in 2962 patients. Patients receiving EGFR-TKI showed significantly longer PFS [HR=0.266 (95% CI=0.20-0.35), P<0.0001]. No significant difference in overall survival [HR=0.946 (95% CI=0.35-2.53), P=0.912] was observed between the groups. The cumulative meta-analysis of the studies showed that, since 2011 (OPTIMAL study), the PFS benefit in the EGFR-TKI arm was statistically significantly longer. Toxicity values greater than or equal to 3 in the most prevalent EGFR-TKI group included skin rash, diarrhea, and increased aminotransferase. EGFR-TKI treatment significantly extends PFS, with acceptable toxicities than platinum-based chemotherapy. Thus, they should be considered as the first choice in the first-line treatment for patients with NSCLC and with the EGFR mutation.
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Affiliation(s)
- Sávia R C Normando
- Discipline of Oncology and Hematology, Faculty of Medicine of ABC (FMABC), Santo André, São Paulo, Brazil
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