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Dal Maso A, Del Bianco P, Cortiula F, Nardo G, Zulato E, Bonanno L, Follador A, De Maglio G, Pasello G, Indraccolo S. EGFR T790M testing through repeated liquid biopsy over time: a real-world multicentric retrospective experience. J Thorac Dis 2022; 14:3364-3375. [PMID: 36245580 PMCID: PMC9562526 DOI: 10.21037/jtd-22-745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/22/2022] [Indexed: 01/09/2023]
Abstract
Background About 15% of non-small cell lung cancers (NSCLCs) harbor epidermal growth factor receptor (EGFR) mutations. Upfront treatment with first and second generation EGFR tyrosine kinase inhibitors (1-2gen TKIs) is superior to chemotherapy. The most frequent resistance mechanism to 1-2gen TKIs is EGFR T790M mutation, which is targeted by osimertinib. T790M mutation can be revealed by liquid biopsy (LB) or by tissue rebiopsy (TB). LB is easily feasible but less sensitive than TB. We focused on repeated LBs and analyzed clinical features associated with EGFR T790M detection. Methods This is a retrospective multicenter observational study including EGFR-mutant NSCLC consecutive patients with disease progression (PD) after 1-2gen TKIs and with a first EGFR LB negative for T790M mutation, referred between 2016 and 2019. Aims of the study were to determine the prevalence of T790M mutation using LB in a real-life setting and the prevalence of T790M mutation by repeated LBs. We explored the association of T790M with clinical-pathological features and, through a survey, we evaluated the decision-making process behind LB request. Data on TBs were also collected. Results One hundred and ten patients were included in the study, for a total of 326 LBs. Median number of LB per patient was 3.0. The T790M prevalence through LB was 34.5%. Over time, significantly more LBs were requested "at clinical and radiological PD" and "at radiological PD" compared to "arbitrarily". The probability of finding the T790M mutation for a patient across each subsequent LB did not significantly change. Liver and lymph node PD were significantly correlated to T790M positivity. Notably, "at PD" compared to "arbitrarily" LB request and liver, bone or lymph node PD were correlated to the detection of any EGFR mutation in cfDNA. TB was performed in 59.7% of patients with a T790M negative LB and 18.8% of them were T790M positive. In most cases, TB was not feasible due to anatomical reasons. In our study population, the overall T790M prevalence-detected with both LB and TB-was 42.7%. Conclusions Repeated LB testing can be useful in a real-life scenario to detect EGFR T790M mutation.
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Affiliation(s)
- Alessandro Dal Maso
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy;,Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Paola Del Bianco
- Clinical Research Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Francesco Cortiula
- Department of Oncology, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Giorgia Nardo
- Basic Experimental and Translational Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Elisabetta Zulato
- Basic Experimental and Translational Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Laura Bonanno
- Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Alessandro Follador
- Department of Oncology, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Giovanna De Maglio
- Department of Pathology, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Giulia Pasello
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy;,Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Stefano Indraccolo
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy;,Basic Experimental and Translational Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
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Caputo V, De Falco V, Ventriglia A, Famiglietti V, Martinelli E, Morgillo F, Martini G, Corte CMD, Ciardiello D, Poliero L, De Vita F, Orditura M, Fasano M, Franco R, Caraglia M, Avitabile A, Scalamogna R, Marchi B, Ciardiello F, Troiani T, Napolitano S. Comprehensive genome profiling by next generation sequencing of circulating tumor DNA in solid tumors: a single academic institution experience. Ther Adv Med Oncol 2022; 14:17588359221096878. [PMID: 35547096 PMCID: PMC9082754 DOI: 10.1177/17588359221096878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 04/07/2022] [Indexed: 01/18/2023] Open
Abstract
Background: Recently, new evidence of the next-generation sequencing (NGS) liquid biopsy utility in clinical practice has been developed. This assay is emerging as a new promising tool to use as a noninvasive biomarker for cancer mutation profiling. Additional data supporting the clinical validity of cell free DNA (cfDNA) based testing is necessary to inform optimal use of these assays in the clinic. Materials and methods: A total of 398 cancer patients were analyzed by FoundationOne Liquid Analysis (F1LA), a genomic profiling assay and by standard NGS diagnostic ThermoFisher platform. The association between diagnostic technique was evaluated using a Poisson regression model. FoundationOne Liquid (F1L) and FoundationOne Liquid CDx (F1LCDx) detect 70 and 324 cancer-related genes alterations, respectively, including genomic signatures tumor fraction, blood tumor mutational burden (only for the 324 genes version), and microsatellite instability high status. Both assays used a single DNA extraction method to obtain cfDNA. The real-life clinical impact and feasibility of F1L and F1LCDx were evaluated across different solid tumors in our department. Results: Between 1 January 2019 and 28 February 2021, 398 samples of different tumor types from 398 patients were analyzed (overall success rate: 92%, in FoundationOne Liquid CDx Analysis success rate: 97%). Most frequent molecular alterations were TP53 (74), APC (40), DNMT3A (39), KRAS (23). The comprehensive clinical impact of F1LA compared with standard diagnostic was 64.7% versus 22.1% [risk ratio (RR) = 2.94; p < 0.001] and the potential clinical impact was 58.6% versus 11.0% (RR = 5.32; p < 0.001), respectively. Furthermore, some clinical cases were selected, in which F1LA detected actionable alterations offering an unexpected therapeutic choice. Conclusions: Although additional studies are needed to better select patients and setting, NGS F1LA is a useful, noninvasive, and repeatable assay to guide therapeutic choice in oncology. It provides a snapshot of cancer heterogeneity profile that could be incorporated in routinely clinical practice.
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Affiliation(s)
- Vincenza Caputo
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Vincenzo De Falco
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Anna Ventriglia
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Vincenzo Famiglietti
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Erika Martinelli
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Floriana Morgillo
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Giulia Martini
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Carminia Maria Della Corte
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Davide Ciardiello
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
- Oncology Unit, Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | - Luca Poliero
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Ferdinando De Vita
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Michele Orditura
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Morena Fasano
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Michele Caraglia
- Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | | | | | | | - Fortunato Ciardiello
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Napoli, Italy
| | - Teresa Troiani
- Full Professor, Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Via S. Pansini 5, Napoli 80131, Italy
| | - Stefania Napolitano
- Medical Oncology, Department of Precision Medicine, Università degli Studi della Campania ‘Luigi Vanvitelli’, Via S. Pansini 5, Napoli 80131, Italy
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Kuligina E, Moiseyenko F, Belukhin S, Stepanova E, Zakharova M, Chernobrivtseva V, Aliev I, Sharabura T, Moiseyenko V, Aleksakhina S, Laidus T, Martianov A, Kholmatov M, Whitehead A, Yanus G, Imyanitov E. Tumor irradiation may facilitate the detection of tumor-specific mutations in plasma. World J Clin Oncol 2021; 12:1215-1226. [PMID: 35070740 PMCID: PMC8716992 DOI: 10.5306/wjco.v12.i12.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/26/2021] [Accepted: 11/28/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The mutation-based analysis of circulating tumor DNA (ctDNA) is a promising diagnostic tool for clinical oncology. However, it has low success rate because many cancer patients do not have detectable ctDNA in the bloodstream.
AIM To evaluate whether preoperative tumor irradiation results in a transient increase of plasma ctDNA concentration due to the induction of apoptosis in radiation-exposed cells.
METHODS This study focused on patients with locally advanced rectal cancer, because preoperative tumor irradiation is a part of their standard treatment plan. Nine subjects, whose tumors contained KRAS, NRAS or BRAF mutations, donated serial blood samples 1 h prior to the first fraction of irradiation (at baseline), immediately after the first fraction (time 0), and 1, 3, 6, 12, 24, 36, 48, 72 and 96 h after the first fraction. The amount of mutated gene copies was measured by droplet digital PCR.
RESULTS Five out of nine patients were mutation-negative by ctDNA test at baseline; two of these subjects demonstrated an emergence of the mutated DNA copies in the bloodstream within the follow-up period. There were 4 patients, who had detectable ctDNA in the plasma at the start of the experiment; three of them showed an evident treatment-induced increase of the content of mutated RAS/RAF alleles.
CONCLUSION Local tumor irradiation may facilitate the detection of tumor-specific DNA in the bloodstream. These data justify further assessment of the clinical feasibility of irradiation-assisted liquid biopsy.
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Affiliation(s)
- Ekaterina Kuligina
- Department of Tumor Biology, N.N. Petrov Institute of Oncology, St.-Petersburg 197758, Russia
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg 194100, Russia
| | - Fedor Moiseyenko
- Department of Therapy, City Cancer Center, St.-Petersburg 197758, Russia
| | - Sergey Belukhin
- Department of Surgery, City Cancer Center, St.-Petersburg 197758, Russia
| | | | - Maria Zakharova
- Department of Radiology, City Cancer Center, St.-Petersburg 197758, Russia
| | | | - Ikram Aliev
- Department of Surgery, City Cancer Center, St.-Petersburg 197758, Russia
| | - Tatiana Sharabura
- Department of Radiology, City Cancer Center, St.-Petersburg 197758, Russia
| | | | - Svetlana Aleksakhina
- Department of Tumor Biology, N.N. Petrov Institute of Oncology, St.-Petersburg 197758, Russia
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg 194100, Russia
| | - Tatiana Laidus
- Department of Tumor Biology, N.N. Petrov Institute of Oncology, St.-Petersburg 197758, Russia
| | - Aleksandr Martianov
- Department of Tumor Biology, N.N. Petrov Institute of Oncology, St.-Petersburg 197758, Russia
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, St.-Petersburg 194100, Russia
| | - Maksim Kholmatov
- Department of Tumor Biology, N.N. Petrov Institute of Oncology, St.-Petersburg 197758, Russia
| | - Aldon Whitehead
- Internal Medicine Residency Program, The University of Illinois College of Medicine, Chicago, IL 60612, United States
| | - Grigoriy Yanus
- Department of Tumor 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 Imyanitov
- Department of Tumor 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 Northwestern Medical University, St.-Petersburg 191015, Russia
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Hedtke M, Pessoa Rejas R, Froelich MF, Ast V, Duda A, Mirbach L, Costina V, Martens UM, Hofheinz RD, Neumaier M, Haselmann V. Liquid profiling of circulating tumor DNA in colorectal cancer: steps needed to achieve its full clinical value as standard care. Mol Oncol 2021; 16:2042-2056. [PMID: 34873826 PMCID: PMC9120900 DOI: 10.1002/1878-0261.13156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/27/2021] [Accepted: 12/06/2021] [Indexed: 12/23/2022] Open
Abstract
The analysis of circulating tumor DNA (ctDNA) is at the threshold of implementation into standard care for colorectal cancer (CRC) patients. However, data about the clinical utility of liquid profiling (LP), its acceptance by clinicians, and its integration into clinical workflows in real‐world settings remain limited. Here, LP tests requested as part of routine care since 2016 were retrospectively evaluated. Results show restrained request behavior that improved moderately over time, as well as reliable diagnostic performance comparable to translational studies, with an overall agreement of 91.7%. Extremely low ctDNA levels at < 0.1% in over 20% of cases, a high frequency of concomitant driver mutations (in up to 14% of cases), and ctDNA levels reflecting the clinical course of disease were revealed. However, certain limitations hampering successful translation of ctDNA into clinical practice were uncovered, including the lack of clinically relevant ctDNA thresholds, appropriate time points of LP requests, and integrative evaluation of ctDNA, imaging, and clinical findings. In conclusion, these results highlight the potential clinical value of LP for CRC patient management and demonstrate issues that need to be addressed for successful long‐term implementation in clinical workflows.
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Affiliation(s)
- Maren Hedtke
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Rodrigo Pessoa Rejas
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Matthias F Froelich
- Department of Radiology and Nuclear Medicine, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Germany
| | - Volker Ast
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Angelika Duda
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Laura Mirbach
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Victor Costina
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Uwe M Martens
- Cancer Center Heilbronn-Franken, SLK-Clinics, MOLIT Institute for Personalized Medicine, Heilbronn, Germany
| | - Ralf-Dieter Hofheinz
- Day Treatment Center (TTZ), Interdisciplinary Tumor Center Mannheim (ITM), III Medical Clinic, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Michael Neumaier
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
| | - Verena Haselmann
- Institute of Clinical Chemistry, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Germany
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Zulato E, Tosello V, Nardo G, Bonanno L, Del Bianco P, Indraccolo S. Implementation of Next Generation Sequencing-Based Liquid Biopsy for Clinical Molecular Diagnostics in Non-Small Cell Lung Cancer (NSCLC) Patients. Diagnostics (Basel) 2021; 11:diagnostics11081468. [PMID: 34441402 PMCID: PMC8394370 DOI: 10.3390/diagnostics11081468] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 12/02/2022] Open
Abstract
Genetic screening of somatic mutations in circulating free DNA (cfDNA) opens up new opportunities for personalized medicine. In this study, we aim to illustrate the implementation of NGS-based liquid biopsy in clinical practice for the detection of somatic alterations in selected genes. Our work is particularly relevant for the diagnosis and treatment of NSCLC. Beginning in 2020, we implemented the use of Roche’s Avenio ctDNA expanded panel in our diagnostic routine. In this study, we retrospectively review NGS-based clinical genetic tests performed in our laboratory, focusing on key analytical parameters. Avenio ctDNA kits demonstrated 100% sensitivity in detecting single nucleotide variants (SNVs) at >0.5% variant allele frequency (VAF), and high consistency in reproducibility. Since 2020, we performed cfDNA genotyping test in 86 NSCLC patients, and we successfully sequenced 96.5% (83/86) of samples. We observed consistency in sequencing performance based upon sequencing depth and on-target rate. At least one gene variant was identified in 52 samples (63%), and one or more actionable variants were detected in 21 out of 83 (25%) of analysed patients. We demonstrated the feasibility of implementing an NGS-based liquid biopsy assay for routine genetic characterization of metastatic NSCLC patients.
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Affiliation(s)
- Elisabetta Zulato
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV IRCCS, I-35128 Padova, Italy; (E.Z.); (V.T.); (G.N.)
| | - Valeria Tosello
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV IRCCS, I-35128 Padova, Italy; (E.Z.); (V.T.); (G.N.)
| | - Giorgia Nardo
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV IRCCS, I-35128 Padova, Italy; (E.Z.); (V.T.); (G.N.)
| | - Laura Bonanno
- Medical Oncology 2, Istituto Oncologico Veneto IOV IRCSS, I-35128 Padova, Italy;
| | - Paola Del Bianco
- Clinical Research Unit, Istituto Oncologico Veneto IOV IRCCS, I-35128 Padova, Italy;
| | - Stefano Indraccolo
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV IRCCS, I-35128 Padova, Italy; (E.Z.); (V.T.); (G.N.)
- Department of Surgery, Oncology and Gastroenterology, Università degli Studi di Padova, I-35128 Padova, Italy
- Correspondence: ; Tel.: +39-049-821-5875
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Di Capua D, Bracken-Clarke D, Ronan K, Baird AM, Finn S. The Liquid Biopsy for Lung Cancer: State of the Art, Limitations and Future Developments. Cancers (Basel) 2021; 13:cancers13163923. [PMID: 34439082 PMCID: PMC8391249 DOI: 10.3390/cancers13163923] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary During the development and progression of lung tumors, processes such as necrosis and vascular invasion shed tumor cells or cellular components into various fluid compartments. Liquid biopsies consist of obtaining a bodily fluid, typically peripheral blood, in order to isolate and investigate these shed tumor constituents. Circulating tumor cells (CTCs) are one such constituent, which can be isolated from blood and can act as a diagnostic aid and provide valuable prognostic information. Liquid-based biopsies may also have a potential future role in lung cancer screening. Circulating tumor DNA (ctDNA) is found in small quantities in blood and, with the recent development of sensitive molecular and sequencing technologies, can be used to directly detect actionable genetic alterations or monitor for resistance mutations and guide clinical management. While potential benefits of liquid biopsies are promising, they are not without limitations. In this review, we summarize the current state and limitations of CTCs and ctDNA and possible future directions. Abstract Lung cancer is a leading cause of cancer-related deaths, contributing to 18.4% of cancer deaths globally. Treatment of non-small cell lung carcinoma has seen rapid progression with targeted therapies tailored to specific genetic drivers. However, identifying genetic alterations can be difficult due to lack of tissue, inaccessible tumors and the risk of complications for the patient with serial tissue sampling. The liquid biopsy provides a minimally invasive method which can obtain circulating biomarkers shed from the tumor and could be a safer alternative to tissue biopsy. While tissue biopsy remains the gold standard, liquid biopsies could be very beneficial where serial sampling is required, such as monitoring disease progression or development of resistance mutations to current targeted therapies. Liquid biopsies also have a potential role in identifying patients at risk of relapse post treatment and as a component of future lung cancer screening protocols. Rapid developments have led to multiple platforms for isolating circulating tumor cells (CTCs) and detecting circulating tumor DNA (ctDNA); however, standardization is lacking, especially in lung carcinoma. Additionally, clonal hematopoiesis of uncertain clinical significance must be taken into consideration in genetic sequencing, as it introduces the potential for false positives. Various biomarkers have been investigated in liquid biopsies; however, in this review, we will concentrate on the current use of ctDNA and CTCs, focusing on the clinical relevance, current and possible future applications and limitations of each.
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Affiliation(s)
- Daniel Di Capua
- Department of Histopathology, St. James’s Hospital, D08NHY1 Dublin, Ireland;
| | - Dara Bracken-Clarke
- Department of Medical Oncology, St. James’ Hospital, D08NHY1 Dublin, Ireland;
| | - Karine Ronan
- Faculty of Medicine, University College Dublin, D04V1W8 Dublin, Ireland;
| | - Anne-Marie Baird
- School of Medicine, Trinity Translational Medicine Institute, Trinity College, D02PN40 Dublin, Ireland;
| | - Stephen Finn
- Department of Histopathology, St. James’s Hospital, D08NHY1 Dublin, Ireland;
- Correspondence:
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