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Imyanitov EN, Preobrazhenskaya EV, Orlov SV. Current status of molecular diagnostics for lung cancer. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2024; 5:742-765. [PMID: 38966170 PMCID: PMC11220319 DOI: 10.37349/etat.2024.00244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/08/2024] [Indexed: 07/06/2024] Open
Abstract
The management of lung cancer (LC) requires the analysis of a diverse spectrum of molecular targets, including kinase activating mutations in EGFR, ERBB2 (HER2), BRAF and MET oncogenes, KRAS G12C substitutions, and ALK, ROS1, RET and NTRK1-3 gene fusions. Administration of immune checkpoint inhibitors (ICIs) is based on the immunohistochemical (IHC) analysis of PD-L1 expression and determination of tumor mutation burden (TMB). Clinical characteristics of the patients, particularly age, gender and smoking history, significantly influence the probability of finding the above targets: for example, LC in young patients is characterized by high frequency of kinase gene rearrangements, while heavy smokers often have KRAS G12C mutations and/or high TMB. Proper selection of first-line therapy influences overall treatment outcomes, therefore, the majority of these tests need to be completed within no more than 10 working days. Activating events in MAPK signaling pathway are mutually exclusive, hence, fast single-gene testing remains an option for some laboratories. RNA next-generation sequencing (NGS) is capable of detecting the entire repertoire of druggable gene alterations, therefore it is gradually becoming a dominating technology in LC molecular diagnosis.
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Affiliation(s)
- Evgeny N. Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia
- Department of Clinical Genetics, St.-Petersburg State Pediatric Medical University, 194100 St.-Petersburg, Russia
- I.V. Kurchatov Complex for Medical Primatology, National Research Centre “Kurchatov Institute”, 354376 Sochi, Russia
| | - Elena V. Preobrazhenskaya
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St.-Petersburg, Russia
- Department of Clinical Genetics, St.-Petersburg State Pediatric Medical University, 194100 St.-Petersburg, Russia
| | - Sergey V. Orlov
- I.V. Kurchatov Complex for Medical Primatology, National Research Centre “Kurchatov Institute”, 354376 Sochi, Russia
- Department of Oncology, I.P. Pavlov St.-Petersburg State Medical University, 197022 St.-Petersburg, Russia
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Balasubramanian A, John T, Adams DJ. Breathing in danger: how particulate matter pollution is putting the public at risk of lung cancer †. J Pathol 2023; 261:1-4. [PMID: 37550943 DOI: 10.1002/path.6160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 08/09/2023]
Abstract
We are constantly exposed to chemicals and other agents in our environment that can influence our risk of tumorigenesis, but exactly how these factors contribute to cancer development is largely unknown. Fine particulate matter measuring ≤2.5 μm (PM2.5 ) from air pollution can accumulate in alveoli, contributing to inflammation and tissue damage. Despite prior correlative studies highlighting the mortality risk, there has been a historical reluctance to lower national standards for safe PM2.5 exposure. A recent publication further highlights the attributable risk of PM2.5 exposure with lung cancer - particularly in 'never-smokers' with EGFR-driven non-small cell lung cancer. Importantly, it also elucidates a mechanistic link between PM2.5 exposure and tumorigenesis using in vivo models of EGFR non-small cell lung cancer. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Adithya Balasubramanian
- Wellcome Sanger Institute, Cambridge, UK
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Thomas John
- Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia
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Li X, Wei S, Deng L, Tao H, Liu M, Zhao Z, Du X, Li Y, Hou J. Sex-biased molecular differences in lung adenocarcinoma are ethnic and smoking specific. BMC Pulm Med 2023; 23:99. [PMID: 36964522 PMCID: PMC10039609 DOI: 10.1186/s12890-023-02387-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 03/14/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND Sex-related differences in cancer epidemiology, tumor biology, immune system activity, and pharmacogenomics have been suggested to be important considerations for precision cancer control. Here we elucidated systematically sex biases in genetic variants, gene expression profiles, and immunological landscapes of lung adenocarcinoma patients (LUADs) with different ancestry and smoking status. METHODS Somatic mutation and mRNA expression data of Asian and Non-Asian LUADs were obtained from public databases. Sex-biased genetic mutations, gene expression, biological pathways, and immune infiltration were identified in the context of smoking status and race. RESULTS Among nonsmokers, male-biased mutations were prevalent in Asian LUADs, while few sex-biased mutations were detected in Non-Asian LUADs. EGFR was the only mutation whose frequency was significantly higher in females than males in both Asian and Non-Asian nonsmokers. More genes exhibited sex-biased expression in Non-Asian LUADs compared to Asian LUADs. Moreover, genes distinctly expressed in females were mainly related to immune-related pathways, whereas those in males were more involved in activation of DNA repair, E2F_targets, and MYC_targets pathways. We also detected sex-specific immune infiltration in the context of genetic variation. In EGFR-mutant LUADs, males had a significantly increased infiltration of CD8 + T cells, whereas resting CD4 + memory T cells were more abundant in females. Additionally, in KRAS-mutant LUADs, CD8 + and CD4 + T cells were more abundant in females than males. In addition, we detected all female patients with high SCGB3A2 expression were exclusively sensitive to immunotherapy, while this phenomenon was not observed in male patients. CONCLUSIONS Our findings provided evidence that sex-related molecular and cellular components are involved in shaping tumor distinct genetic and immune features, which might have important impact on personalized targeted and immune therapy.
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Affiliation(s)
- Xuetao Li
- Department of Oncology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430070, China
- School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Shuquan Wei
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Liaoyuan Deng
- School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - HongYan Tao
- Department of Pulmonary Diseases, The Second Affiliated Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Mingkai Liu
- School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Ziwen Zhao
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China
| | - Xin Du
- Department of Hematology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, Guangdong, China.
| | - Yujun Li
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China.
| | - Jun Hou
- Center for Medical Research On Innovation and Translation, Institute of Clinical Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, Guangdong, China.
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Nasretdinov AF, Menshikov KV, Sultanbaev AV, Musin SI, Sultanbaeva NI, Men'shikova IA. The mechanism of action of different generations of EGFR-inhibitors in malignant lung tumors. Literature review and data synthesis. JOURNAL OF MODERN ONCOLOGY 2022. [DOI: 10.26442/18151434.2022.3.201813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Knowledge of the molecular characteristics of the progression of non-small cell lung tumors currently provides the patient with the best treatment options. One of the most well-known and studied genetic abnormalities is a mutation in the EGFR gene, which makes the tumor sensitive to therapy with tyrosine kinase inhibitors. In the conditions of the existence of several therapeutic options at once, it is required to know not only the results of clinical trials, but also the fundamental features of the mechanisms of action of a particular drug. The article contains a literature review, presenting the features of the functioning of EGFR (epidermal growth factor receptor), the mechanisms of action of EGFR inhibitors of different generations (erlotinib, gefitinib, afatinib, osimertinib), generalization and analysis of the main differences between them.
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Signaling pathways and targeted therapies in lung squamous cell carcinoma: mechanisms and clinical trials. Signal Transduct Target Ther 2022; 7:353. [PMID: 36198685 PMCID: PMC9535022 DOI: 10.1038/s41392-022-01200-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/03/2022] [Accepted: 09/18/2022] [Indexed: 11/08/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related death across the world. Unlike lung adenocarcinoma, patients with lung squamous cell carcinoma (LSCC) have not benefitted from targeted therapies. Although immunotherapy has significantly improved cancer patients' outcomes, the relatively low response rate and severe adverse events hinder the clinical application of this promising treatment in LSCC. Therefore, it is of vital importance to have a better understanding of the mechanisms underlying the pathogenesis of LSCC as well as the inner connection among different signaling pathways, which will surely provide opportunities for more effective therapeutic interventions for LSCC. In this review, new insights were given about classical signaling pathways which have been proved in other cancer types but not in LSCC, including PI3K signaling pathway, VEGF/VEGFR signaling, and CDK4/6 pathway. Other signaling pathways which may have therapeutic potentials in LSCC were also discussed, including the FGFR1 pathway, EGFR pathway, and KEAP1/NRF2 pathway. Next, chromosome 3q, which harbors two key squamous differentiation markers SOX2 and TP63 is discussed as well as its related potential therapeutic targets. We also provided some progress of LSCC in epigenetic therapies and immune checkpoints blockade (ICB) therapies. Subsequently, we outlined some combination strategies of ICB therapies and other targeted therapies. Finally, prospects and challenges were given related to the exploration and application of novel therapeutic strategies for LSCC.
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Li Y, Lv X, Wang B, Xu Z, Wang Y, Gao S, Hou D. Differentiating EGFR from ALK mutation status using radiomics signature based on MR sequences of brain metastasis. Eur J Radiol 2022; 155:110499. [PMID: 36049410 DOI: 10.1016/j.ejrad.2022.110499] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/29/2022] [Accepted: 08/20/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE More and more small brain metastases (BMs) in asymptomatic patients can be detected even prior to their primary lung cancer with the development of MRI. The aim of this study was to develop a predictive radiomics model to identify epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) mutation status in BM and explore the optimal MR sequence for predication. METHODS This retrospective study included 186 patients with proven BM of lung cancer (training cohort: 70 patients with EGFR mutations and 65 patients with ALK rearrangements; testing cohort: 26 patients with EGFR mutations and 25 patients with ALK rearrangements). Radiomics features were separately extracted from contrast-enhanced T1-weighted imaging (T1-CE), T2 fluid-attenuated inversion recovery (T2-FLAIR) and T2WI sequences. The model for three MR sequences were constructed using a random forest classifier. ROC curves were used to validate the capability of the models in the training and testing cohorts. RESULTS The AUCs of the T2-FLAIR model were significantly higher than those of the T1-CE model in training cohort (0.991 versus 0.954) and testing cohort (0.950 versus 0.867) and much higher than those of the T2WI model in training cohort (0.991 versus 0.880) and testing cohort (0.950 versus 0.731). Besides, the F1 scores of the T1-CE model were slightly higher than the T2-FLAIR model and much higher than the T2WI model in two cohorts. CONCLUSION T2-FLAIR and T1-CE radiomics models that can be used as noninvasive tools for identifying EGFR and ALK mutation status are helpful to guide therapeutic strategies.
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Affiliation(s)
- Ye Li
- Department of Radiology, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Xinna Lv
- Department of Radiology, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Bing Wang
- Department of Radiology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Zexuan Xu
- Department of Radiology, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Yichuan Wang
- Department of Radiology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Shan Gao
- Department of Radiology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - Dailun Hou
- Department of Radiology, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China.
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Efficacy of Osimertinib in Lung Squamous Cell Carcinoma Patients with EGFR Gene Mutation–Case Report and A Literature Review. Curr Oncol 2022; 29:3531-3539. [PMID: 35621675 PMCID: PMC9140000 DOI: 10.3390/curroncol29050285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/25/2022] [Accepted: 05/11/2022] [Indexed: 12/22/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer and the leading cause of cancer-related mortality worldwide. It is responsible for 80–85% of lung cancer cases. NSCLC can be divided into several groups, led by adenocarcinoma (ADC)–40–50% and squamous cell carcinoma (SCC)–20–30%. The development of new molecular therapies targeting particular abnormalities such as mutations in the EGFR (Epidermal Growth Factor Receptor) gene or ROS1 or ALK genes rearrangements resolved in novel strategies in advanced NSCLC management. EGFR mutation occurs mostly in patients with ADC and those patients are mostly females with no or light smoking history. The hereby presented patient fitted the ADC characteristics, while they were diagnosed with SCC. The unusual diagnosis implied further genetic testing, which established the occurrence of L858R substitution in exon 21 in the EGFR gene. A 63-year-old female was admitted to the unit due to a dry cough, pain in the right chest area and dyspnoea. When diagnosed, the patient had a peripheral mass in the right lung superior lobe (55 × 40 mm), satellite nodules in the apex of the same lung and packets of disintegrating lymph nodes. Positron Emission Tomography (PET-CT) confirmed a diffuse neoplastic process qualified as stage IV on the TNM scale. Due to EGFR gene mutation, the woman was administered osimertinib, however, the treatment did not succeed, and other therapeutic solutions were undertaken. The patient died 10 months after diagnosis. Patients with advanced ADC harboring EGFR mutation can receive osimertinib, a third-generation tyrosine kinase inhibitor (TKI), however, the use of TKIs in SCC remains controversial. In some published cases, osimertinib treatment led to success, in others, the therapy did not result in the expected final effect. Small sample groups and diverse molecular backgrounds indicate the need for further research in this field. Thus, the treatment decision-making process in those patients overall remains extremely demanding and ambiguous.
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Christofyllakis K, Monteiro AR, Cetin O, Kos IA, Greystoke A, Luciani A. Biomarker guided treatment in oncogene-driven advanced non-small cell lung cancer in older adults: A Young International Society of Geriatric Oncology Report. J Geriatr Oncol 2022; 13:1071-1083. [PMID: 35525790 DOI: 10.1016/j.jgo.2022.04.013] [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: 12/15/2021] [Revised: 04/08/2022] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
Lung cancer remains the leading cause of cancer-related deaths worldwide, with most patients diagnosed at an advanced age. The treatment of non-small cell lung cancer (NSCLC) has been revolutionized with the introduction of molecular guided therapy. Despites the challenges when considering treatment of older adults, they are still systematically underrepresented in registrational trials. This review aims to summarize the existing evidence on treatment of older patients with lung cancer with a targetable driver mutation or alteration (EGFR, ALK, ROS, BRAFV600E, MET, RET, KRASG12C and NTRK), and consider the evidence from a geriatric oncology perspective. Early generation EGFR-tyrosine kinase inhibitors (TKIs). TKIs are fairly well-studied in older adults and have been shown to be safe and efficient. However, older adult-specific data regarding the standard-of-care first-line agent osimertinib are lacking. Erlotinib, dacomitinib, and afatinib may be more toxic than other EGFR-TKIs. Next generation ALK-TKIs are preferred over crizotinib due to increased efficacy, as demonstrated in phase III trials. Alectinib seems to be safer than crizotinib, while brigatinib is associated with increased toxicity. Lorlatinib overcomes most resistance mutations, but data regarding this agent have only recently emerged. Regarding ROS1-fusion positive NSCLC, crizotinib is an option in older adults, while entrectinib is similarly effective but shows increased neurotoxicity. In BRAFV600E-mutant NSCLC, the combination darbafenib/tramectinib is effective, but no safety data for older adults exist. MET alterations can be targeted with capmatinib and tepotinib, and registrational trials included primarily older patients, due to the association of this alteration with advanced age. For RET-rearranged-NSCLC selpercatinib and pralsetinib are approved, and no differences in safety or efficacy between older and younger patients were shown. KRASG12C mutations, which are more frequent in older adults, became recently druggable with sotorasib, and advanced age does not seem to affect safety or efficacy. In NTRK-fusion positive tumors, larotrectinib and entrectinib have tumor agnostic approval, however, not enough data on older patients are available. Based on currently available data, molecularly-guided therapy for most alterations is safe and efficacious in older adults with oncogene-driven advanced NSCLC. However, for many TKIs, older adult-specific data are lacking, and should be subject of future prospective evaluations.
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Affiliation(s)
- Konstantinos Christofyllakis
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany.
| | - Ana Raquel Monteiro
- Medical Oncology Department, Vila Nova de Gaia/Espinho Hospital Center, Vila Nova de Gaia, Portugal; Multidisciplinary Thoracic Tumors Unit - Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Vila Nova de Gaia, Portugal
| | - Onur Cetin
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany
| | - Igor Age Kos
- Department of Hematology, Oncology, Clinical Immunology and Rheumatology, Saarland University Medical Center, Homburg, Germany
| | - Alastair Greystoke
- Northern Centre for Cancer Care, Newcastle-upon-Tyne NHS Foundation trust, Newcastle, UK
| | - Andrea Luciani
- Department of Medical Oncology, Ospedale di Treviglio- ASST Bergamo Ovest, Treviglio, Italy
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EGFR signaling pathway as therapeutic target in human cancers. Semin Cancer Biol 2022; 85:253-275. [PMID: 35427766 DOI: 10.1016/j.semcancer.2022.04.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/12/2022] [Accepted: 04/04/2022] [Indexed: 02/08/2023]
Abstract
Epidermal Growth Factor Receptor (EGFR) enacts major roles in the maintenance of epithelial tissues. However, when EGFR signaling is altered, it becomes the grand orchestrator of epithelial transformation, and hence one of the most world-wide studied tyrosine kinase receptors involved in neoplasia, in several tissues. In the last decades, EGFR-targeted therapies shaped the new era of precision-oncology. Despite major advances, the dream of converting solid tumors into a chronic disease is still unfulfilled, and long-term remission eludes us. Studies investigating the function of this protein in solid malignancies have revealed numerous ways how tumor cells dysregulate EGFR function. Starting from preclinical models (cell lines, organoids, murine models) and validating in clinical specimens, EGFR-related oncogenic pathways, mechanisms of resistance, and novel avenues to inhibit tumor growth and metastatic spread enriching the therapeutic portfolios, were identified. Focusing on non-small cell lung cancer (NSCLC), where EGFR mutations are major players in the adenocarcinoma subtype, we will go over the most relevant discoveries that led us to understand EGFR and beyond, and highlight how they revolutionized cancer treatment by expanding the therapeutic arsenal at our disposal.
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Dalurzo ML, Avilés-Salas A, Soares FA, Hou Y, Li Y, Stroganova A, Öz B, Abdillah A, Wan H, Choi YL. Testing for EGFR Mutations and ALK Rearrangements in Advanced Non-Small-Cell Lung Cancer: Considerations for Countries in Emerging Markets. Onco Targets Ther 2021; 14:4671-4692. [PMID: 34511936 PMCID: PMC8420791 DOI: 10.2147/ott.s313669] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/08/2021] [Indexed: 12/24/2022] Open
Abstract
The treatment of patients with advanced non-small-cell lung cancer (NSCLC) in recent years has been increasingly guided by biomarker testing. Testing has centered on driver genetic alterations involving the epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) rearrangements. The presence of these mutations is predictive of response to targeted therapies such as EGFR tyrosine kinase inhibitors (TKIs) and ALK TKIs. However, there are substantial challenges for the implementation of biomarker testing, particularly in emerging countries. Understanding the barriers to testing in NSCLC will be key to improving molecular testing rates worldwide and patient outcomes as a result. In this article, we review EGFR mutations and ALK rearrangements as predictive biomarkers for NSCLC, discuss a selection of appropriate tests and review the literature with respect to the global uptake of EGFR and ALK testing. To help improve testing rates and unify procedures, we review our experiences with biomarker testing in China, South Korea, Russia, Turkey, Brazil, Argentina and Mexico, and propose a set of recommendations that pathologists from emerging countries can apply to assist with the diagnosis of NSCLC.
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Affiliation(s)
- Mercedes L Dalurzo
- Department of Pathology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | | | - Yingyong Hou
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Yuan Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, People’s Republic of China
| | - Anna Stroganova
- N.N. Blokhin National Medical Research Centre of Oncology, Russian Academy of Medical Sciences, Moscow, Russia
| | - Büge Öz
- Cerrahpaşa School of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Arif Abdillah
- Takeda Pharmaceuticals International AG – Singapore Branch, Singapore, Singapore
| | - Hui Wan
- Takeda Pharmaceuticals International AG – Singapore Branch, Singapore, Singapore
| | - Yoon-La Choi
- Department of Pathology and Translational Genomics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Waterhouse DM, Tseng WY, Espirito JL, Robert NJ. Understanding Contemporary Molecular Biomarker Testing Rates and Trends for Metastatic NSCLC Among Community Oncologists. Clin Lung Cancer 2021; 22:e901-e910. [PMID: 34187757 DOI: 10.1016/j.cllc.2021.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Although guidelines recommend testing for actionable biomarkers for patients with advanced or metastatic non-small cell lung cancer (NSCLC), testing rates have varied. This study aimed to assess molecular testing patterns in a large network of US community-based oncology practices. METHODS This retrospective observational study examined adult patients with newly diagnosed stage IV NSCLC with ≥ 2 visits in The US Oncology Network from July 1, 2016 to September 30, 2019. Testing patterns were examined using electronic health record structured fields and chart review. Structured data were analyzed for the overall study population (cohort A), and structured and unstructured data were analyzed for a select cohort of 300 patients (cohort B). RESULTS In cohort A (n = 3337), programmed death ligand 1 (37%) was the most frequently tested biomarker documented in structured data, followed by epidermal growth factor receptor (36%), anaplastic lymphoma kinase (35%), ROS1 (20%), and BRAF (16%). According to unstructured data in cohort B (n = 300), epidermal growth factor receptor (80%) was the most frequently tested biomarker, followed by anaplastic lymphoma kinase (79%), programmed death ligand 1 (72%), ROS1 (71%), and BRAF (56%). The proportion of tests ordered prior to first-line (1L) treatment increased from 2016 to 2018 for all biomarkers, as did the proportion of test results available prior to 1L treatment. However, some of the test results became available after 1L or later lines of treatment were in progress. CONCLUSION Our study found increased testing rates over time and decreases in testing turnaround times. However, rates of testing for all biomarkers still need to improve, as does completion of testing prior to initiation of therapy.
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Content of circulating tumor DNA depends on the tumor type and the dynamics of tumor size, but is not influenced significantly by physical exercise, time of the day or recent meal. Cancer Genet 2021; 256-257:165-178. [PMID: 34186498 DOI: 10.1016/j.cancergen.2021.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/11/2021] [Accepted: 05/24/2021] [Indexed: 01/20/2023]
Abstract
PURPOSE This study aimed to investigate factors, which influence the content of circulating tumor DNA (ctDNA). METHODS 398 serial plasma samples were collected within 1-7 consecutive days from patients with EGFR-mutated lung cancer (n = 13), RAS/RAF-mutated colorectal cancer (n = 54) and BRAF-mutated melanoma (n = 17), who presented with measurable tumor disease. The amount of ctDNA was determined by ddPCR. RESULTS Among 82 patients, who donated 2-6 serial plasma samples, 42 subjects were classified as ctDNA-positive; only 22% cases were mutation-positive across all consecutive tests, while 24/82 (29%) patients showed presence of mutated ctDNA in some but not all blood draws. Subjects with progressing tumors had higher probability of being detected ctDNA-positive as compared to patients, who responded to therapy or had stable disease (39/55 (71%) vs. 4/24 (17%); p = 0.0001). Our study failed to reveal the impact of the time of the day, recent meal or prior physical exercise on the results of ctDNA testing. CONCLUSIONS Presence of ctDNA in plasma is particularly characteristic for patients, who experience clinical progression of tumor disease. Consecutive plasma tests may occasionally provide discordant data; thus, the repetition of analysis may be advised in certain cases in order to ensure the validity of negative ctDNA result.
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Chang Q, Qiang H, Qian J, Lei Y, Lu J, Feng H, Zhao Y, Han B, Zhang Y, Chu T. Epidermal Growth Factor Receptor Mutation Status and Response to Tyrosine Kinase Inhibitors in Advanced Chinese Female Lung Squamous Cell Carcinoma: A Retrospective Study. Front Oncol 2021; 11:652560. [PMID: 33869057 PMCID: PMC8050333 DOI: 10.3389/fonc.2021.652560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/11/2021] [Indexed: 12/25/2022] Open
Abstract
Background The frequency of epidermal growth factor receptor (EGFR) mutations and the efficacy of tyrosine kinase inhibitor (TKI) in Chinese female patients with lung squamous cell carcinoma (SCC) are unknown. This study was designed to investigate the incidence of EGFR mutations and the role of targeted therapy in advanced Chinese female lung SCC patients. Methods Advanced female patients diagnosed with lung SCC at the Shanghai Chest Hospital between January 2013 and December 2018 were retrospectively analyzed. Results A total of 4223 advanced lung SCC patients were screened, and there were 154 female lung SCC patients who had underwent EGFR mutation detection. Positive EGFR mutations were found in 29.9% (46/154) of female lung SCC patients, including twenty-three 19del mutation (14.9%), twenty-one 21L858R mutation (13.6%) and other mutations (1.4%, 21861Q and 20ins). For 45 EGFR positive mutation female SCC patients, the median progression-free survival (PFS) of patients who received EGFR-TKI therapy (n=38) was 8.0 months (95% CI, 5.4-10.7 months), which was significantly longer than patients who were treated with chemotherapy (8.0 vs. 3.2 months, p=0.024), and the median overall survival (OS) was also longer (24.9 months vs. 13.9 months, p=0.020). The objective response rate (ORR) was 44.7% (17/38), and the disease control rate (DCR) was 81.6% (31/38). For 105 female SCC patients with EGFR negative mutation, the median OS was 18.6 months (95% CI, 14.2-22.9 months) and it was no different from that of EGFR positive mutation patients (18.6 vs. 22.8 months, p=0.377). Conclusion For advanced Chinese female lung SCC patients with EGFR positive mutations, targeted therapy could confer longer PFS and OS than chemotherapy, but the survival was similar with patients who were negative EGFR mutations.
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Affiliation(s)
- Qing Chang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Huiping Qiang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jialin Qian
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yuqiong Lei
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jiahuan Lu
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Hui Feng
- Department of Emergency, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yiming Zhao
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Baohui Han
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yanwei Zhang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Tianqing Chu
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
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14
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Imyanitov EN, Iyevleva AG, Levchenko EV. Molecular testing and targeted therapy for non-small cell lung cancer: Current status and perspectives. Crit Rev Oncol Hematol 2020; 157:103194. [PMID: 33316418 DOI: 10.1016/j.critrevonc.2020.103194] [Citation(s) in RCA: 234] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/14/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
Molecular testing has become a mandatory component of the non-small cell lung cancer (NSCLC) management. The detection of EGFR, BRAF and MET mutations as well as the analysis of ALK, ROS1, RET and NTRK translocations have already been incorporated in the NSCLC diagnostic standards, and the inhibitors of these kinases are in routine clinical use. There are emerging biomarkers, e.g., KRAS G12C substitutions and HER2 activating alterations, which are likely to enter NSCLC guidelines upon the approval of the corresponding drugs. In addition to genetic examination, NSCLCs are usually subjected to the analysis of PD-L1 protein expression in order to direct the use of immune checkpoint inhibitors. Comprehensive NSCLC testing for multiple predictive markers requires the analysis of distinct biological molecules (DNA, RNA, proteins) and, therefore, the involvement of different analytical platforms (PCR, DNA sequencing, immunohistochemistry, FISH). There are ongoing efforts aimed at the integration of multiple NSCLC molecular assays into a single diagnostic pipeline.
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Affiliation(s)
- Evgeny N Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, 197758, Russia; Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, 194100, Russia; Department of Oncology, I.I. Mechnikov North-Western Medical University, St.-Petersburg, 195067, Russia.
| | - Aglaya G Iyevleva
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, St.-Petersburg, 197758, Russia; Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg, 194100, Russia
| | - Evgeny V Levchenko
- Department of Oncology, I.I. Mechnikov North-Western Medical University, St.-Petersburg, 195067, Russia; Department of Thoracic Oncology, N.N. Petrov Institute of Oncology, St.-Petersburg, 197758, Russia
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15
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Tsimafeyeu I, Moiseenko F, Orlov S, Filippova E, Belonogov A, Nebesnykh A, Khalimov A, Karabina E, Shikina V, Abdelgafur A, Statsenko G, Titova I, Isaichikov D, Makarnyaeva G, Mordovskiy A, Barkovskaya O, Smirnov A, Gikalo M, Savelov N, Kosov D, Imyanitov E, Demidova I, Tjulandin S. Overall Survival of Patients With ALK-Positive Metastatic Non-Small-Cell Lung Cancer in the Russian Federation: Nationwide Cohort Study. J Glob Oncol 2020; 5:1-7. [PMID: 31095455 PMCID: PMC6550093 DOI: 10.1200/jgo.19.00024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE The overall survival (OS) results in patients with ALK-positive metastatic non–small-cell lung cancer (NSCLC) have rarely been reported. The aim of this prospective-retrospective cohort study was to obtain real-world data on the use of crizotinib or chemotherapy in patients with ALK-positive metastatic NSCLC in Russia. PATIENTS AND METHODS Patients with epidermal growth factor receptor–negative metastatic NSCLC were screened in 23 cancer centers. To be eligible, patients were required to have confirmation of ALK rearrangement. Patients were treated with crizotinib (250 mg twice daily; n = 96) or the investigator’s choice of platinum-based chemotherapy (n = 53). The primary end point was OS. RESULTS A total of 149 ALK-positive patients were included. Mean age was 53 years in both groups. Patients were predominately women (59%) and never-smokers (74%), and most patients had adenocarcinoma histology (95%). At a median follow-up time of 15 months, 79 of the 149 patients included in the analysis had died. Median OS from the start of treatment was 31 months (95% CI, 28.5 to 33.5 months) in the crizotinib group and 15.0 months (95% CI, 9.0 to 21.0 months) in the chemotherapy group (P < .001). The objective response rate was 34% in the crizotinib group. Among patients with brain metastasis, one complete response (6%) and five partial responses (31%) were achieved. Grade 3 adverse events were observed in three patients (3%) in the crizotinib group. CONCLUSION The improved OS observed in crizotinib clinical trials in ALK-positive NSCLC was also observed in the less selective patient populations treated in daily practice in Russia. The use of standard chemotherapy in these patients remains common but seems inappropriate as a result of the effectiveness of newer treatments, such as crizotinib.
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Affiliation(s)
| | | | - Sergei Orlov
- Pavlov First Saint Petersburg State Medical University, St Petersburg, Russia
| | - Elena Filippova
- Pavlov First Saint Petersburg State Medical University, St Petersburg, Russia
| | | | | | | | | | | | | | | | - Irina Titova
- A.I. Kryzhanovsky Krasnoyarsk Cancer Center, Krasnoyarsk, Russia
| | | | | | | | | | | | | | | | - Dmitry Kosov
- Aston Health Contract Research Organization, Moscow, Russia
| | | | | | - Sergei Tjulandin
- Russian Society of Clinical Oncology, Moscow, Russia.,N.N. Blokhin National Medical Research Center of Oncology, Moscow, Russia
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16
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Agreement between PDL1 immunohistochemistry assays and polymerase chain reaction in non-small cell lung cancer: CLOVER comparison study. Sci Rep 2020; 10:3928. [PMID: 32127616 PMCID: PMC7054292 DOI: 10.1038/s41598-020-60950-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 02/18/2020] [Indexed: 11/28/2022] Open
Abstract
The goal of the CLOVER study was to perform a pairwise comparison of four tests based on the same patient population with non-small cell lung cancer (NSCLC): three validated PDL1 immunohistochemistry (IHC) assays (Ventana SP142, Ventana SP263, Dako 22C3) and one PCR test. Four hundred seventy-three NSCLC samples were obtained from a biobank and were stained using PDL1 IHC assays. Four trained pathologists independently evaluated the percentage of tumor cells (TC) and immune cells (IC) that stained positive at any intensity. PDL1 transcripts were quantified in 437 patients by a standard Taqman RT-PCR assay using SDHA as a reference gene. A concordance analysis was performed to assess (1) the correlation of TC and IC between different assays and (2) the predictive properties of one test for another. “High” RNA expression was detected in 187 of 437 (43%) patients. The percentage of PDL1-positive cells (≥1%) was higher among the IC than the TC in all IHC three assays. The Pearson correlation coefficients (PCC) for TC were 0.71, 0.87, and 0.75 between 22C3/SP142, 22C3/SP263, and SP263/SP142, respectively. The PCC for IC were 0.45, 0.61, and 0.68 for the same pairs. A low correlation was observed between the PCR test and each of the three IHC assays; however, if a patient tested low/negative by PCR, then they were likely to test negative by any single IHC test with a high probability (92–99%). Among patients who tested positive by PCR, only 9–45% tested positive by IHC assays. There was excellent positive and negative agreement (>91%) between 22C3 and SP263 staining using the recommended individual cutoffs for first-line treatment. PCR RNA expression analysis is not equivalent to IHC. However, this method may have some potential for the identification of PDL1-negative tumors. 22C3 could be considered as a substitute for SP263 in first-line treatment.
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17
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Comparative analysis of expression of mutant and wild-type alleles is essential for reliable PCR-based detection of MET exon 14 skipping. Biochimie 2019; 165:267-274. [DOI: 10.1016/j.biochi.2019.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/26/2019] [Indexed: 01/05/2023]
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18
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Yang B, Wang QG, Lu M, Ge Y, Zheng YJ, Zhu H, Lu G. Correlations Study Between 18F-FDG PET/CT Metabolic Parameters Predicting Epidermal Growth Factor Receptor Mutation Status and Prognosis in Lung Adenocarcinoma. Front Oncol 2019; 9:589. [PMID: 31380265 PMCID: PMC6657738 DOI: 10.3389/fonc.2019.00589] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: This study assessed the ability of metabolic parameters from 18Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) and clinicopathological data to predict epidermal growth factor receptor (EGFR) expression/mutation status in patients with lung adenocarcinoma and to develop a prognostic model based on differences in EGFR expression status, to enable individualized targeted molecular therapy. Patients and Methods: Metabolic parameters and clinicopathological data from 200 patients diagnosed with lung adenocarcinoma between July 2009 and November 2016, who underwent 18F-FDG PET/CT and EGFR mutation testing, were retrospectively evaluated. Multivariate logistic regression was applied to significant variables to establish a prediction model for EGFR mutation status. Overall survival for both mutant and wild-type EGFR was analyzed to establish a multifactor Cox regression model. Results: Of the 200 patients, 115 (58%) exhibited EGFR mutations and 85 (42%) were wild-type. Among selected metabolic parameters, metabolic tumor volume (MTV) demonstrated a significant difference between wild-type and mutant EGFR mutation status, with an area under the receiver operating characteristic curve (AUC) of 0.60, which increased to 0.70 after clinical data (smoking status) were combined. Survival analysis of wild-type and mutant EGFR yielded mean survival times of 34.451 (95% CI 28.654-40.249) and 53.714 (95% CI 44.331-63.098) months, respectively. Multivariate Cox regression revealed that mutation type, tumor stage, and thyroid transcription factor-1 (TTF-1) expression status were the main factors influencing patient prognosis. The hazard ratio for mutant EGFR was 0.511 (95% CI 0.303-0.862) times that of wild-type, and the risk of death was lower for mutant EGFR than for wild-type. The risk of death was lower in TTF-1-positive than in TTF-1-negative patients. Conclusion: 18F-FDG PET/CT metabolic parameters combined with clinicopathological data demonstrated moderate diagnostic efficacy in predicting EGFR mutation status and were associated with prognosis in mutant and wild-type EGFR non-small-cell lung cancer (NSCLC), thus providing a reference for individualized targeted molecular therapy.
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Affiliation(s)
- Bin Yang
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qing Gen Wang
- Department of Medical Imaging, Jinling Hospital, Clinical School of Southern Medical University, Nanjing, China
| | - Mengjie Lu
- Department of Medical Imaging, Jinling Hospital, Nanjing, China
| | | | - Yu Jun Zheng
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hong Zhu
- Department of Nuclear Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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19
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Abstract
Brain metastases (BM) are the most commonly diagnosed type of central nervous system tumor in the United States. Estimates of the frequency of BM vary significantly, as there is no nationwide reporting system for metastases. BM may be the first sign of a previously undiagnosed cancer, or occur years or decades after the primary cancer was diagnosed. Incidence of BM varies significantly by primary cancer site. Lung, breast, and melanoma continue to be the leading cause of BM. These tumors are increasingly more common as new therapeutics, advanced imaging, and improved screening have led to lengthened survival after primary diagnosis for cancer patients. BM are difficult to treat, and for most individuals the diagnosis of BM generally portends a poor prognosis.
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Affiliation(s)
- Quinn T Ostrom
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Christina Huang Wright
- Brain Tumor and Neuro-oncology Center, Department of Neurosurgery, University Hospitals Case Medical Center, Case Western Reserve School of Medicine, Cleveland, OH, United States
| | - Jill S Barnholtz-Sloan
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, United States.
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20
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Current and Prospective Protein Biomarkers of Lung Cancer. Cancers (Basel) 2017; 9:cancers9110155. [PMID: 29137182 PMCID: PMC5704173 DOI: 10.3390/cancers9110155] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/02/2017] [Accepted: 11/06/2017] [Indexed: 12/23/2022] Open
Abstract
Lung cancer is a malignant lung tumor with various histological variants that arise from different cell types, such as bronchial epithelium, bronchioles, alveoli, or bronchial mucous glands. The clinical course and treatment efficacy of lung cancer depends on the histological variant of the tumor. Therefore, accurate identification of the histological type of cancer and respective protein biomarkers is crucial for adequate therapy. Due to the great diversity in the molecular-biological features of lung cancer histological types, detection is impossible without knowledge of the nature and origin of malignant cells, which release certain protein biomarkers into the bloodstream. To date, different panels of biomarkers are used for screening. Unfortunately, a uniform serum biomarker composition capable of distinguishing lung cancer types is yet to be discovered. As such, histological analyses of tumor biopsies and immunohistochemistry are the most frequently used methods for establishing correct diagnoses. Here, we discuss the recent advances in conventional and prospective aptamer based strategies for biomarker discovery. Aptamers like artificial antibodies can serve as molecular recognition elements for isolation detection and search of novel tumor-associated markers. Here we will describe how these small synthetic single stranded oligonucleotides can be used for lung cancer biomarker discovery and utilized for accurate diagnosis and targeted therapy. Furthermore, we describe the most frequently used in-clinic and novel lung cancer biomarkers, which suggest to have the ability of differentiating between histological types of lung cancer and defining metastasis rate.
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21
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Camidge DR. Drinking Not Drowning: How to Deal With the Deluge of Potential Predictive Biomarker Approaches in Non-Small-Cell Lung Cancer. J Oncol Pract 2017; 13:229-230. [PMID: 28399386 DOI: 10.1200/jop.2017.022772] [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
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22
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Leduc N, Sabourin JC, Molinié V. In Reply to the Letter to the Editor Titled "Which Epidemiological Factors Have the Most Influence on the EGFR Mutation Frequency in Lung Adenocarcinoma?". J Thorac Oncol 2016; 11:e114-5. [PMID: 27565406 DOI: 10.1016/j.jtho.2016.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 07/11/2016] [Indexed: 11/19/2022]
Affiliation(s)
- Nicolas Leduc
- Department of Oncology, University Hospital of Martinique, Fort-de-France, France.
| | | | - Vincent Molinié
- Department of Pathology, University Hospital of Martinique, Fort-de-France, France
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