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Lee B, Chern A, Fu AY, Zhang A, Sha MY. A Highly Sensitive XNA-Based RT-qPCR Assay for the Identification of ALK, RET, and ROS1 Fusions in Lung Cancer. Diagnostics (Basel) 2024; 14:488. [PMID: 38472960 DOI: 10.3390/diagnostics14050488] [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: 01/22/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Lung cancer is often triggered by genetic alterations that result in the expression of oncogenic tyrosine kinases. Specifically, ALK, RET, and ROS1 chimeric receptor tyrosine kinases are observed in approximately 5-7%, 1-2%, and 1-2% of NSCLC patients, respectively. The presence of these fusion genes determines the response to tyrosine kinase inhibitors. Thus, accurate detection of these gene fusions is essential in cancer research and precision oncology. To address this need, we have developed a multiplexed RT-qPCR assay using xeno nucleic acid (XNA) molecular clamping technology to detect lung cancer fusions. This assay can quantitatively detect thirteen ALK, seven ROS1, and seven RET gene fusions in FFPE samples. The sensitivity of the assay was established at a limit of detection of 50 copies of the synthetic template. Our assay has successfully identified all fusion transcripts using 50 ng of RNA from both reference FFPE samples and cell lines. After validation, a total of 77 lung cancer patient FFPE samples were tested, demonstrating the effectiveness of the XNA-based fusion gene assay with clinical samples. Importantly, this assay is adaptable to highly degraded RNA samples with low input amounts. Future steps involve expanding the testing to include a broader range of clinical samples as well as cell-free RNAs to further validate its applicability and reliability.
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Affiliation(s)
- Bongyong Lee
- DiaCarta Inc., 4385 Hopyard Rd., Suite 100, Pleasanton, CA 94588, USA
| | - Andrew Chern
- DiaCarta Inc., 4385 Hopyard Rd., Suite 100, Pleasanton, CA 94588, USA
| | - Andrew Y Fu
- DiaCarta Inc., 4385 Hopyard Rd., Suite 100, Pleasanton, CA 94588, USA
| | - Aiguo Zhang
- DiaCarta Inc., 4385 Hopyard Rd., Suite 100, Pleasanton, CA 94588, USA
| | - Michael Y Sha
- DiaCarta Inc., 4385 Hopyard Rd., Suite 100, Pleasanton, CA 94588, USA
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2
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Yang X, Tang Z, Li J, Jiang J, Liu Y. Progress of non-small-cell lung cancer with ROS1 rearrangement. Front Mol Biosci 2023; 10:1238093. [PMID: 38187090 PMCID: PMC10766828 DOI: 10.3389/fmolb.2023.1238093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024] Open
Abstract
ROS1 rearrangement is found in 0.9%-2.6% of people with non-small-cell lung cancers (NSCLCs). Tyrosine kinase inhibitors (TKIs) target ROS1 and can block tumor growth and provide clinical benefits to patients. This review summarizes the current knowledge on ROS1 rearrangements in NSCLCs, including the mechanisms of ROS1 oncogenicity, epidemiology of ROS1-positive tumors, methods for detecting rearrangements, molecular characteristics, therapeutic agents, and mechanisms of drug resistance.
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Affiliation(s)
- Xin Yang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhe Tang
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jing Li
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jizong Jiang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yue Liu
- Department of Thyroid and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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3
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Stanzione B, Del Conte A, Bertoli E, De Carlo E, Revelant A, Spina M, Bearz A. Therapeutical Options in ROS1-Rearranged Advanced Non Small Cell Lung Cancer. Int J Mol Sci 2023; 24:11495. [PMID: 37511255 PMCID: PMC10380455 DOI: 10.3390/ijms241411495] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
ROS proto-oncogene 1 (ROS1) rearrangements occur in 0.9-2.6% of patients with non small cell lung cancer (NSCLC), conferring sensitivity to treatment with specific tyrosine-kinase inhibitors (TKI). Crizotinib, a first-generation TKI, was the first target-therapy approved for the first-line treatment of ROS1-positive NSCLC. Recently, entrectinib, a multitarget inhibitor with an anti-ROS1 activity 40 times more potent than crizotinib and better activity on the central nervous system (CNS), received approval for treatment-naive patients. After a median time-to-progression of 5.5-20 months, resistance mechanisms can occur, leading to tumor progression. Therefore, newer generation TKI with greater potency and brain penetration have been developed and are currently under investigation. This review summarizes the current knowledge on clinicopathological characteristics of ROS1-positive NSCLC and its therapeutic options.
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Affiliation(s)
- Brigida Stanzione
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Alessandro Del Conte
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Elisa Bertoli
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
- Department of Medicine (DAME), University of Udine, 33100 Udine, Italy
| | - Elisa De Carlo
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Alberto Revelant
- Department of Radiotherapy, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Michele Spina
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Alessandra Bearz
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
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Zannini G, Tedesco I, Cozzolino I, Montella M, Clery E, Della Corte CM, Morgillo F, Accardo M, Franco R, Zito Marino F. A Critical Issue in Lung Cancer Cytology and Small Biopsies: DNA and RNA Extraction from Archival Stained Slides for Biomarker Detection through Real Time PCR and NGS-The Experience in Pathological Anatomy Unit. Diagnostics (Basel) 2023; 13:diagnostics13091637. [PMID: 37175028 PMCID: PMC10178763 DOI: 10.3390/diagnostics13091637] [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: 03/27/2023] [Revised: 04/22/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
The handling of biomaterials is crucial for precision medicine in advanced-stage lung patients with only cytology or small biopsies available. The main purpose of the study was to evaluate the quantity and quality of nucleic acids extracted from mixed stained slides (MSSs), including H&E, IHC and FISH, compared to the extraction from unstained slides (USs). A series of 35 lung adenocarcinoma surgical samples was selected to set up the method and the technical approach was validated in a series of 15 small biopsies and 38 cytological samples. DNA extracted from MSSs was adequate in all samples and the Real Time PCR was successful in 30/35 surgical samples (86%), 14/15 small biopsies (93%), and 33/38 cytological samples (87%). NGS using DNA extracted from MSSs was successful in 18/35 surgical samples (51%), 11/15 small biopsies (73%), and 26/38 cytological samples (68%). RNA extracted from MSSs was unsatisfactory in all cases showing an inadequate degree of fragmentation. Our technical approach based on the recovery of stained slides could represent a strategic way forward for DNA-based biomarker testing in lung cancer cases without biomaterials. The RNA extracted from MSSs did not represent a successful approach.
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Affiliation(s)
- Giuseppa Zannini
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Ilaria Tedesco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Immacolata Cozzolino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Marco Montella
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Eduardo Clery
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Carminia Maria Della Corte
- Medical Oncology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via S. Pansini 5, 80131 Naples, Italy
| | - Floriana Morgillo
- Medical Oncology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via S. Pansini 5, 80131 Naples, Italy
| | - Marina Accardo
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
| | - Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "Luigi Vanvitelli", Via L. Armanni 5, 80138 Naples, Italy
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Expression of c-MET in Estrogen Receptor Positive and HER2 Negative Resected Breast Cancer Correlated with a Poor Prognosis. J Clin Med 2022; 11:jcm11236987. [PMID: 36498560 PMCID: PMC9738605 DOI: 10.3390/jcm11236987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction: The mesenchymal-epithelial transition factor (c-MET) receptor is overexpressed in about 14−54% of invasive breast cancers, but its prognostic value in clinical practice is still unclear. Methods: In order to investigate the relationship between c-MET expression levels and prognosis, we retrospectively reviewed the clinical features and outcomes of 105 women with estrogen receptor positive HER2 negative (ER+/HER2-) resected breast cancer. We used the Kaplan Meier method to estimate Disease Free Survival (DFS) and Breast Cancer Specific Survival (BCSS) in the subgroups of patients with high (≥50%) and low (<50%) c-MET expression. Univariate and multivariate Cox proportional regression models were performed to assess the prognostic impact of clinicopathological parameters for DFS an BCSS. Results: High c-MET values significantly correlated with tumor size, high Ki67 and low (<20%) progesterone receptor expression. At a median follow up of 60 months, patients with high c-MET tumor had significantly worse (p = 0.00026) and BCSS (p = 0.0013). Univariate analysis showed a significant association between large tumor size, elevated Ki67, c-MET values and increased risk of recurrence or death. The multivariate COX regression model showed that tumor size and high c-MET expression were independent predictors of DFS (p = 0.019 and p = 0.022). Moreover, large tumor size was associated with significantly higher risk of cancer related death at multivariate analysis (p = 0.017), while a trend towards a poorer survival was registered in the high c-MET levels cohort (p = 0.084). Conclusions: In our series, high c-MET expression correlated with poor survival outcomes. Further studies are warranted to validate the clinical relevance and applicability of c-MET as a prognostic factor in ER+/HER2- early BC.
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Montella M, Ciani G, Granata V, Fusco R, Grassi F, Ronchi A, Cozzolino I, Franco R, Zito Marino F, Urraro F, Monti R, Sirica R, Savarese G, Chianese U, Nebbioso A, Altucci L, Vietri MT, Nardone V, Reginelli A, Grassi R. Preliminary Experience of Liquid Biopsy in Lung Cancer Compared to Conventional Assessment: Light and Shadows. J Pers Med 2022; 12:jpm12111896. [PMID: 36422072 PMCID: PMC9698369 DOI: 10.3390/jpm12111896] [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: 08/31/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose: To assess the qualitative relationship between liquid biopsy and conventional tissue biopsy. As a secondary target, we evaluated the relationship between the liquid biopsy results and the T stage, N stage, M stage, and compared to grading. Methods: The Local Ethics Committee of the “Università degli Studi della Campania Luigi Vanvitelli”, with the internal resolution number 24997/2020 of 12.11.2020, approved this spontaneous prospective study. According to the approved protocol, patients with lung cancer who underwent Fine-Needle Aspiration Cytology (FNAC), CT-guided biopsy, and liquid biopsy were enrolled. A Yates chi-square test was employed to analyze differences in percentage values of categorical variables. A p-value < 0.05 was considered statistically significant. Data analysis was performed using the Matlab Statistic Toolbox (The MathWorks, Inc., Natick, MA, USA). Results: When a genetic mutation is present on the pathological examination, this was also detected on the liquid biopsy. ROS1 and PDL1 mutations were found in 2/29 patients, while EGFR Exon 21 was identified in a single patient. At liquid biopsy, 26 mutations were identified in the analyzed samples. The mutations with the highest prevalence rate in the study populations were: ALK (Ile1461Val), found in 28/29 patients (96.6%), EML4 (Lys398Arg), identified in 16/29 (55.2%) patients, ALK (Asp1529Glu), found in 14/29 (48.3%) patients, EGFR (Arg521Lys), found in 12/29 (41.4%) patients, ROS (Lys2228Gln), identified in 11/29 (37.9%) patients, ROS (Arg167Gln) and ROS (Ser2229Cys), identified in 10/29 (34.5%) patients, ALK (Lys1491Arg) and PIK3CA (Ile391Met), identified in 8/29 (27.6%) patients, ROS (Thr145Pro), identified in 6/29 (20.7%) patients, and ROS (Ser1109Leu), identified in 4/29 (13.8%) patients. No statistically significant differences can be observed in the mutation rate between the adenocarcinoma population and the squamous carcinoma population (p > 0.05, Yates chi-square test). Conclusions: We showed that, when a genetic mutation was detected in pathological examination, this was always detected by liquid biopsy, demonstrating a very high concordance rate of genomic testing between tissues and their corresponding mutations obtained by liquid biopsy, without cases of false-negative results. In addition, in our study, liquid biopsy highlighted 26 mutations, with the prevalence of ALK mutation in 96.6% of patients, supporting the idea that this approach could be an effective tool in cases with insufficient tumor tissue specimens or in cases where tissue specimens are not obtainable.
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Affiliation(s)
- Marco Montella
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Giovanni Ciani
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Vincenza Granata
- Division of Radiology, Istituto Nazionale Tumori IRCCS Fondazione Pascale-IRCCS di Napoli, 80131 Naples, Italy
| | - Roberta Fusco
- Medical Oncology Division, Igea SpA, 80013 Napoli, Italy
| | - Francesca Grassi
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
- Correspondence:
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Immacolata Cozzolino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Fabrizio Urraro
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Riccardo Monti
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Roberto Sirica
- AMES-Centro Polidiagnostico Strumentale, SRL, 80013 Naples, Italy
| | | | - Ugo Chianese
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Angela Nebbioso
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Maria Teresa Vietri
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Valerio Nardone
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Alfonso Reginelli
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Roberta Grassi
- Department of Precision Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy
- Italian Society of Medical and Interventional Radiology (SIRM), SIRM Foundation, 20122 Milan, Italy
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Yu ZQ, Wang M, Zhou W, Mao MX, Chen YY, Li N, Peng XC, Cai J, Cai ZQ. ROS1-positive non-small cell lung cancer (NSCLC): Biology, Diagnostics, Therapeutics and Resistance. J Drug Target 2022; 30:845-857. [PMID: 35658765 DOI: 10.1080/1061186x.2022.2085730] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
ROS1 is a proto-oncogene encoding a receptor tyrosine protein kinase (RTK), homologous to the v - Ros sequence of University of Manchester tumours virus 2(UR2) sarcoma virus, whose ligands are still being investigated. ROS1 fusion genes have been identified in various types of tumours. As an oncoprotein, it promotes cell proliferation, activation and cell cycle progression by activating downstream signalling pathways, accelerating the development and progression of non-small cell lung cancer (NSCLC). Studies have demonstrated that ROS1 inhibitors are effective in patients with ROS1-positive NSCLC and are used for first-line clinical treatment. These small molecule inhibitors provide a rational therapeutic option for the treatment of ROS1-positive patients. Inevitably, ROS1 inhibitor resistance mutations occur, leading to tumours recurrence or progression. Here, we comprehensively review the identified biological properties and Differential subcellular localization of ROS1 fusion oncoprotein promotes tumours progression. We summarize recently completed and ongoing clinical trials of the classic and new ROS1 inhibitors. More importantly, we classify the complex evolving tumours cell resistance mechanisms. This review contributes to our understanding of the biological properties of ROS1 and current therapeutic advances and resistant tumours cells, and the future directions to develop ROS1 inhibitors with durable effects.
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Affiliation(s)
- Zhi-Qiong Yu
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Meng Wang
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Wen Zhou
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Meng-Xia Mao
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Yuan-Yuan Chen
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Na Li
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Xiao-Chun Peng
- Laboratory of Oncology, Center for Molecular Medicine.,Department of Pathophysiology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, P.R. China
| | - Jun Cai
- Department of Oncology, First Affiliated Hospital of Yangtze University
| | - Zhi-Qiang Cai
- Department of Oncology, First Affiliated Hospital of Yangtze University
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Nambirajan A, Rana D, Samant K, Prabakaran A, Malik P, Jain D. Multiplex fluorescence in situ hybridization testing for anaplastic lymphoma kinase and c-ros oncogene 1 gene rearrangements on cytology smears in lung adenocarcinomas: comparative study with formalin-fixed paraffin-embedded sections. J Am Soc Cytopathol 2022; 11:154-164. [PMID: 35148960 DOI: 10.1016/j.jasc.2022.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 12/28/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Multiplex anaplastic lymphoma kinase (ALK)/c-ros oncogene 1 (ROS1) fluorescence in situ hybridization (FISH) probes conserve tissue by analyzing both ALK and ROS1 gene rearrangements (ALK-R/ROS1-R) in a single test. The positivity cutoffs have been validated on formalin-fixed, paraffin-embedded (FFPE) tissue sections and not tested on non-cell block (CB) cytology preparations. We sought to validate non-CB cytology preparations for the detection of ALK-R/ROS1-R using multiplex ALK/ROS1 FISH probes by comparing the results with matched FFPE results. MATERIALS AND METHODS During the 3.5-year study period, FISH using the FlexISH ALK/ROS1 DistinguISH Probe (ZytoVision) was performed in non-CB cytology preparations of patients for whom FISH on FFPE sections was performed. RESULTS A total of 20 patients had one or more non-CB cytology preparations (n = 27) suitable for FISH analysis. These comprised direct smears (n = 17), smears from centrifuged effusion pellets (n = 8), cytospin smears (n = 1), and biopsy imprint smears (n = 1). These had been fixed in 95% ethanol (n = 18) or air dried (n = 9), and stained with Papanicolaou (n = 14), May-Grünwald-Giemsa (n = 9), immunocytochemistry (n = 3), or hematoxylin and eosin (n = 1). The median archival time was 1 year. Successful FISH results were achieved in 14 samples (6 with ALK-R, 2 with ROS1-R, 6 negative) and were concordant with the FFPE FISH results for 13 of 14 cases. The single case with discordant results between cytology and FFPE FISH showed ALK-R on cytology concordant with positive ALK D5F3 companion diagnostics assay results and was considered a false-negative FFPE FISH result. FISH failure occurred mainly in the older archived slides because of overdigestion (n = 5), hybridization failure (n = 5), or excessive background fluorescence (n = 3). CONCLUSIONS Non-CB cytology smears are highly suitable for multiplex FISH analysis with 100% concordance with FFPE FISH and/or ALK D5F3 companion diagnostics assay results.
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Affiliation(s)
- Aruna Nambirajan
- Departments of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Deeksha Rana
- Departments of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Komal Samant
- Departments of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Aswini Prabakaran
- Departments of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhat Malik
- Department of Medical Oncology, Dr. B.R.A.IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Deepali Jain
- Departments of Pathology, All India Institute of Medical Sciences, New Delhi, India.
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9
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Gendarme S, Bylicki O, Chouaid C, Guisier F. ROS-1 Fusions in Non-Small-Cell Lung Cancer: Evidence to Date. Curr Oncol 2022; 29:641-658. [PMID: 35200557 PMCID: PMC8870726 DOI: 10.3390/curroncol29020057] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 11/16/2022] Open
Abstract
The ROS-1 gene plays a major role in the oncogenesis of numerous tumors. ROS-1 rearrangement is found in 0.9–2.6% of non-small-cell lung cancers (NSCLCs), mostly lung adenocarcinomas, with a significantly higher rate of women, non-smokers, and a tendency to a younger age. It has been demonstrated that ROS-1 is a true oncogenic driver, and tyrosine kinase inhibitors (TKIs) targeting ROS-1 can block tumor growth and provide clinical benefit for the patient. Since 2016, crizotinib has been the first-line reference therapy, with two-thirds of the patients’ tumors responding and progression-free survival lasting ~20 months. More recently developed are ROS-1-targeting TKIs that are active against resistance mechanisms appearing under crizotinib and have better brain penetration. This review summarizes current knowledge on ROS-1 rearrangement in NSCLCs, including the mechanisms responsible for ROS-1 oncogenicity, epidemiology of ROS-1-positive tumors, methods for detecting rearrangement, phenotypic, histological, and molecular characteristics, and their therapeutic management. Much of this work is devoted to resistance mechanisms and the development of promising new molecules.
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Affiliation(s)
- Sébastien Gendarme
- INSERM, IMRB (Clinical Epidemiology and Ageing Unit), University Paris Est Créteil, F-94010 Créteil, France;
- Pneumology Department, Centre Hospitalier Intercommunal de Créteil, 40, Avenue de Verdun, F-94010 Créteil, France
- Correspondence:
| | - Olivier Bylicki
- Respiratory Disease Unit, HIA Sainte-Anne, 2, Boulevard Saint-Anne, F-83000 Toulon, France;
| | - Christos Chouaid
- INSERM, IMRB (Clinical Epidemiology and Ageing Unit), University Paris Est Créteil, F-94010 Créteil, France;
- Pneumology Department, Centre Hospitalier Intercommunal de Créteil, 40, Avenue de Verdun, F-94010 Créteil, France
| | - Florian Guisier
- Department of Pneumology, Rouen University Hospital, 1 Rue de Germont, F-76000 Rouen, France;
- Clinical Investigation Center, Rouen University Hospital, CIC INSERM 1404, 1 Rue de Germont, F-76000 Rouen, France
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10
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Amrane K, Campedel L, Le Meur C, Abgral R, Kharroubi D, Cadranel J. Case Report: Two Rare Cases of Complete Metabolic Response to Crizotinib in Patients With Rearranged ROS1 and ALK Metastatic Non-small Lung Cancer. Front Med (Lausanne) 2021; 8:691253. [PMID: 34660618 PMCID: PMC8514716 DOI: 10.3389/fmed.2021.691253] [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: 04/05/2021] [Accepted: 07/20/2021] [Indexed: 11/13/2022] Open
Abstract
Crizotinib is a tyrosine kinase inhibitor (TKI) indicated in first-line treatment of rearranged c-ros oncogene 1 (ROS1) and anaplastic lymphoma kinase (ALK) metastatic non-small-cell lung cancer (NSCLC). However, the common response reported after treatment is partial and few complete responses have been reported in PROFILE studies with computed tomography (CT) evaluation. To date, only one case report of complete metabolic response on 2-deoxy-2-[18F] fluoro-D-glucose positron emission tomography-computed tomography (18F-FDG-PET/CT) was published, reporting on a patient with ROS1 rearranged NSCLC. We highlighted the 18F-FDG-PET/CT useful approach for therapeutic assessment of TKI in metastatic mutated NSCLC reporting two complete metabolic responses in patients treated with crizotinib for a rearranged ROS1 and a metastatic ALK NSCLC.
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Affiliation(s)
- Karim Amrane
- Department of Oncology, Pitié Salpêtrière Hospital, Paris, France.,Department of Oncology, Centre Hospitalier des Pays de Morlaix, Morlaix, France
| | - Luca Campedel
- Department of Oncology, Pitié Salpêtrière Hospital, Paris, France
| | - Coline Le Meur
- Department of Oncology, Centre Hospitalier des Pays de Morlaix, Morlaix, France
| | - Ronan Abgral
- Department of Nuclear Medicine, University Hospital of Brest, Brest, France
| | - Dris Kharroubi
- Department of Nuclear Medicine, Pitié Salpêtrière Hospital, Paris, France
| | - Jacques Cadranel
- Department of Pneumology and Thoracic Oncology, Tenon Hospital, AP-HP and Sorbonne Université, Paris, France
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11
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Schmitt F, Di Lorito A, Vielh P. Molecular Testing on Cytology for Gene Fusion Detection. Front Med (Lausanne) 2021; 8:643113. [PMID: 34295907 PMCID: PMC8289888 DOI: 10.3389/fmed.2021.643113] [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: 12/17/2020] [Accepted: 05/31/2021] [Indexed: 12/26/2022] Open
Abstract
Cytology samples are suitable for the study of genotypic and phenotypic changes observed in different tumors. Being a minimally invasive technique, cytology sampling has been used as an acceptable alternative to track the alterations associated with tumor progression. Although the detection of gene mutations is well-established on cytology, in the last few years, gene fusion detections are becoming mandatory, especially in some tumor types such as lung cancer. Different technologies are available such as immunocytochemistry, fluorescence in situ hybridization, reverse transcription-polymerase chain reaction, and massive parallel sequencing approaches. Considering that many new drugs targeted fusion proteins, cytological samples can be of use to detect gene fusions in solid and lymphoproliferative tumor patients. In this article, we revised the use of several techniques utilized to check gene fusions in cytological material.
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Affiliation(s)
- Fernando Schmitt
- Medical Faculty of Porto University, Porto, Portugal.,Unit of Molecular Pathology of Institute of Molecular Pathology and Immunology of University of Porto, Porto, Portugal.,CIntesis@RISE, Porto, Portugal
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12
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What Is New in Biomarker Testing at Diagnosis of Advanced Non-Squamous Non-Small Cell Lung Carcinoma? Implications for Cytology and Liquid Biopsy. JOURNAL OF MOLECULAR PATHOLOGY 2021. [DOI: 10.3390/jmp2020015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The discovery and clinical validation of biomarkers predictive of the response of non-squamous non-small-cell lung carcinomas (NS-NSCLC) to therapeutic strategies continue to provide new data. The evaluation of novel treatments is based on molecular analyses aimed at determining their efficacy. These tests are increasing in number, but the tissue specimens are smaller and smaller and/or can have few tumor cells. Indeed, in addition to tissue samples, complementary cytological and/or blood samples can also give access to these biomarkers. To date, it is recommended and necessary to look for the status of five genomic molecular biomarkers (EGFR, ALK, ROS1, BRAFV600, NTRK) and of a protein biomarker (PD-L1). However, the short- and more or less long-term emergence of new targeted treatments of genomic alterations on RET and MET, but also on others’ genomic alteration, notably on KRAS, HER2, NRG1, SMARCA4, and NUT, have made cellular and blood samples essential for molecular testing. The aim of this review is to present the interest in using cytological and/or liquid biopsies as complementary biological material, or as an alternative to tissue specimens, for detection at diagnosis of new predictive biomarkers of NS-NSCLC.
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13
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Zito Marino F, Alì G, Facchinetti F, Righi L, Fontanini G, Rossi G, Franco R. Fusion proteins in lung cancer: addressing diagnostic problems for deciding therapy. Expert Rev Anticancer Ther 2021; 21:887-900. [PMID: 33715580 DOI: 10.1080/14737140.2021.1903875] [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] [Indexed: 12/13/2022]
Abstract
Introduction: Gene fusions are frequent chromosomal aberrations in solid tumors. In Lung cancer (LC) several druggable-fusions involving tyrosine kinase receptor genes have been described, including ALK, ROS1, RET and NTRK. In non-small cell lung cancer, testing for targetable fusions has become a part of routine clinical practice, greatly impacting therapeutic choice for patients with these aberrations. Although substantial technologies for gene fusion detection have been implemented over time including; cytogenetic, Fluorescence in situ hybridization (FISH), Immunohistochemistry (IHC), Retro-transcription Real-Time PCR (RT-qPCR), to Next Generation Sequencing (NGS), nCounter system (Nanostring technology), several critical issues remain. To date, only the companion diagnostic tests FISH and IHC for ALK-rearrangements and NGS for ROS1-rearrangments were approved. Other fusion approved tests are currently unavailable.Areas covered: In this review, we explore current diagnostic problems of gene fusion detection relative to the technologies available, in order to clarify future standardization of analyses which determine therapeutic choices.Expert opinion: The establishment of a gold standard, an effective diagnostic algorithm, and a standardized interpretation for the analysis of each druggable-fusions in lung cancer is essential for adequate therapeutic management.
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Affiliation(s)
- Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania 'Luigi Vanvitelli', Naples, Italy
| | - Greta Alì
- Department of Surgical Pathology, Medical, Molecular, and Critical Area, University of Pisa, Pisa, Italy
| | - Francesco Facchinetti
- Université Paris-Saclay, Institut Gustave Roussy, INSERM, Biomarqueurs prédictifs et nouvelles stratégies thérapeutiques en oncologie, Villejuif, France.,Medical Oncology Unit, University Hospital of Parma, Italy
| | - Luisella Righi
- Department of Oncology, University of Turin, Pathology Division, San Luigi Hospital, University of Turin, Turin, Italy
| | - Gabriella Fontanini
- Department of Surgical Pathology, Medical, Molecular, and Critical Area, University of Pisa, Pisa, Italy
| | - Giulio Rossi
- Operative Unit of Pathologic Anatomy, Azienda Della Romagna, Teaching Hospital S. Maria Delle Croci, Ravenna, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania 'Luigi Vanvitelli', Naples, Italy
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14
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Marino FZ, Aquino G, Brunelli M, Scognamiglio G, Pedron S, Ronchi A, Cozzolino I, Sparano L, Botti G, Panico L, De Chiara A, Franco R. High performance of multiplex fluorescence in situ hybridization to simultaneous detection of BCL2 and BCL6 rearrangements: useful application in the characterization of DLBCLs. Virchows Arch 2021; 479:565-573. [PMID: 33768318 PMCID: PMC8448700 DOI: 10.1007/s00428-021-03084-8] [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: 11/02/2020] [Revised: 03/07/2021] [Accepted: 03/14/2021] [Indexed: 11/30/2022]
Abstract
Chromosomal rearrangements involving BCL2, BCL6 and MYC are commonly found in the most frequent B cell lymphomas, namely follicular lymphomas (FLs) and diffuse large B-cell lymphomas (DLBCLs). Particularly, BCL2-rearrangement represents a diagnostic hallmark in FLs, whereas MYC translocation can occur simultaneously with BCL2 and/or BCL6 rearrangements, defining a specific category of DLBCLs with a poorer prognosis. In this study, we aim to validate the diagnostic performance of multiplex BCL2/BCL6 FISH approach in formalin-fixed paraffin-embedded FLs and DBCLs and cytological samples of DLBCL comparing to the classic set of single break-apart probes. We collected a series of lymphomas, including 85 DLBCLs, 45 FLs and 36 other B-cell lymphoma histotypes and 16 cytological samples of DLBCLs. MYC, BCL2 and BCL6 rearrangements were previously assessed by a classic FISH test using single break-apart probes. All samples were analysed by a multiplex FISH assay. In the FL series, 38 cases showed BCL2-R; in the DLBCLs series, MYC-R was detected in 21 out of 85 DLBCL patients, BCL2-R in 10 out of 85 and BCL6-R in 33 out of 85. In the DLBCL cytological series, MYC-R was detected in 4 out of 16, BCL2-R in 4 out of 16 and BCL6-R in 1 out of 16. Notably, in FFPE, 13 double-hit lymphomas (DHLs) and 3 triple-hit lymphomas (THLs) were detected; in the cytological series, only 3 DHL cases were observed. The dual BCL2/BCL6 FISH probe test results were fully concordant with the results obtained using classic BCL2 and BCL6 single break apart. Particularly, multiplex FISH to simultaneously detect BCL2-R and BCL6-R on a single slide could find a wide application in the characterisation of double- and triple-hit DLBCLs.
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Affiliation(s)
- Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania "L Vanvitelli", Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Gabriella Aquino
- Pathology Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Via Mariano Semmola, Naples, Italy
| | - Matteo Brunelli
- Pathology Unit, Department of Pathology and Diagnostics, University and Hospital Trust of Verona, P.le L.A. Scuro n. 10, 37134, Verona, Italy
| | - Giosuè Scognamiglio
- Pathology Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Via Mariano Semmola, Naples, Italy
| | - Serena Pedron
- Pathology Unit, Department of Pathology and Diagnostics, University and Hospital Trust of Verona, P.le L.A. Scuro n. 10, 37134, Verona, Italy
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania "L Vanvitelli", Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Immacolata Cozzolino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania "L Vanvitelli", Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Lucianna Sparano
- Pathology Unit, 'Andrea Tortora' Hospital, Via Andrea Tortora, 84016, Pagani, Salerno, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Via Mariano Semmola, Naples, Italy
| | - Luigi Panico
- Pathology Unit, Monaldi Hospital, Via Leonardo Bianchi, 80131, Avellino, Italy
| | - Anna De Chiara
- Pathology Unit, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Via Mariano Semmola, Naples, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania "L Vanvitelli", Via Luciano Armanni, 5, 80138, Naples, Italy.
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15
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Siemanowski J, Heydt C, Merkelbach-Bruse S. Predictive molecular pathology of lung cancer in Germany with focus on gene fusion testing: Methods and quality assurance. Cancer Cytopathol 2021; 128:611-621. [PMID: 32885916 DOI: 10.1002/cncy.22293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/18/2022]
Abstract
Predictive molecular testing has become an important part of the diagnosis of any patient with lung cancer. Using reliable methods to ensure timely and accurate results is inevitable for guiding treatment decisions. In the past few years, parallel sequencing has been established for mutation testing, and its use is currently broadened for the detection of other genetic alterations, such as gene fusion and copy number variations. In addition, conventional methods such as immunohistochemistry and in situ hybridization are still being used, either for formalin-fixed, paraffin-embedded tissue or for cytological specimens. For the development and broad implementation of such complex technologies, interdisciplinary and regional networks are needed. The Network Genomic Medicine (NGM) has served as a model of centralized testing and decentralized treatment of patients and incorporates all German comprehensive cancer centers. Internal quality control, laboratory accreditation, and participation in external quality assessment is mandatory for the delivery of reliable results. Here, we provide a summary of current technologies used to identify patients who have lung cancer with gene fusions, briefly describe the structures of NGM and the national NGM (nNGM), and provide recommendations for quality assurance.
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Affiliation(s)
- Janna Siemanowski
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
| | - Carina Heydt
- Institute of Pathology, University Hospital Cologne, Cologne, Germany
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16
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Zito Marino F, Brunelli M, Rossi G, Calabrese G, Caliò A, Nardiello P, Martignoni G, Squire JA, Cheng L, Massi D, Franco R. Multitarget fluorescence in situ hybridization diagnostic applications in solid and hematological tumors. Expert Rev Mol Diagn 2021; 21:161-173. [PMID: 33593207 DOI: 10.1080/14737159.2021.1887733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Introduction: Multitarget FISH (mFISH) is a technique allowing for simultaneous detection of multiple targets sequences on the same slide through the choice of spectrally distinct fluorophore labels. The mFISH could represent a useful tool in the field of precision oncology.Areas covered: This review discusses the potential applications of mFISH technology in the molecular diagnosis of different solid and hematological tumors, including non-small cell lung cancers, melanomas, renal cell carcinomas, bladder carcinomas, germ cell tumors, and multiple myeloma, as commonly required in the clinical practice.Expert Opinion: In this emerging era of the tailored therapies and newer histo-molecular classifications, there are increasing numbers of predictive and diagnostic biomarkers required for effective clinical care. The mFISH approach may have several applications in the common clinical practice, improving the molecular diagnosis in terms of time, cost and preservation of biomaterial for tumors with a limited amount of tumor available. The mFISH provides several advantages compared to other high-throughput technologies; however, it requires high level of expertise required to interpret complex results.
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Affiliation(s)
- Federica Zito Marino
- Department of Mental and Physic Health and Preventive Medicine, Pathology Unit, University of Campania Luigi Vanvitelli, Napoli, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Verona, Italy
| | - Giulio Rossi
- Pathology Unit, Ospedale Santa Maria Delle Croci, Ravenna, Italy
| | | | - Anna Caliò
- Department of Pathology, University of Verona, Verona, Italy
| | - Pamela Nardiello
- Section of Pathology, Department of Health Sciences, University of Florence Florence, Italy
| | - Guido Martignoni
- Pathology Unit, Department of Pathology and Diagnostics, University and Hospital Trust of Verona, Verona, Italy
| | - Jeremy A Squire
- Departments of Genetics, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Daniela Massi
- Section of Pathology, Department of Health Sciences, University of Florence Florence, Italy
| | - Renato Franco
- Department of Mental and Physic Health and Preventive Medicine, Pathology Unit, University of Campania Luigi Vanvitelli, Napoli, Italy
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17
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Shen H, Lou L, Chen T, Zou Y, Wang B, Xu Z, Ye Q, Shen H, Li W, Xia Y. Comparison of transbronchial needle aspiration with and without ultrasound guidance for diagnosing benign lymph node adenopathy. Diagn Pathol 2020; 15:36. [PMID: 32293480 PMCID: PMC7158000 DOI: 10.1186/s13000-020-00958-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 04/08/2020] [Indexed: 12/25/2022] Open
Abstract
Background Transbronchial needle aspiration (TBNA) is a minimally invasive procedure performed to diagnose lymph node (LN) adenopathy. TBNA with and without endobronchial ultrasound (EBUS) guidance has a high diagnostic yield for malignant LN enlargement, but the value for diagnosing benign LN enlargement has been less thoroughly investigated. Methods We retrospectively evaluated 3540 patients with mediastinal LN enlargement who received TBNA. One hundred sixty-six patients with benign mediastinal lymphadenopathy were included and 293 LNs were biopsied. A positive result was defined as a specific histological abnormality. Conventional TBNA (cTBNA) and EBUS-TBNA, as well as cTBNA and transbronchial forceps biopsy (TBFB), were compared. The subgroup analysis was stratified by disease type and LN size. Results A diagnosis was made in 76.84% of the EBUS-TBNA and 61.31% of the cTBNA (P < 0.05). EBUS-TBNA was superior to cTBNA for both granulomatous (65.18% vs. 45.45%, P < 0.05) and non-granulomatous disease (96.92% vs. 84.06%, P < 0.05). In contrast, the diagnostic yield of EBUS-TBNA was higher than that of cTBNA for LNs < 20 mm (79.44% vs. 64.29%, P < 0.05), but for LNs > 20 mm the difference was marginal. These findings were confirmed in a group of independent patients who received cTBNA plus EBUS-TBNA. The diagnostic yield did not differ between cTBNA and TBFB, but significantly increased to 76.67% when both modalities were employed. Conclusions EBUS-TBNA is the preferred minimally invasive diagnostic method for benign mediastinal LN disease. Combined cTBNA and TBFB is a safe and feasible alternative when EBUS is unavailable.
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Affiliation(s)
- Hui Shen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.,Department of Respiratory and Critical Care Medicine, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China
| | - Lingyun Lou
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.,Department of Respiratory and Critical Care Medicine, Fouth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, 322000, China
| | - Ting Chen
- Department of Endoscopic Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yi Zou
- Department of Pathology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Bin Wang
- Department of Respiratory and Critical Care Medicine, Huzhou Central Hospital, Huzhou, Zhejiang, 313000, China
| | - Zhihao Xu
- Department of Respiratory and Critical Care Medicine, Fouth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, 322000, China
| | - Qin Ye
- Department of Pathology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Huahao Shen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Wen Li
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yang Xia
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.
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