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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] [What about the content of this article? (0)] [Affiliation(s)] [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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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Tauziède-Espariat A, Tartar A, Mehdi L, Pucelle N, Lacombe J, Berthaud C, Brigot E, Massé J, Métais A, Benzakoun J, Hasty L, Chrétien F, Varlet P. [Contributions and limitations of FISH analysis for the diagnosis of central nervous system tumors according to the 2021 WHO classification: Feedback from Sainte-Anne Hospital's Department of Neuropathology]. Ann Pathol 2023; 43:443-451. [PMID: 37385935 DOI: 10.1016/j.annpat.2023.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 05/31/2023] [Accepted: 06/08/2023] [Indexed: 07/01/2023]
Abstract
The fifth edition of the World Health Organization (WHO) Classification of Tumors of the Central Nervous System has identified many new tumor types and has established, for the first time, essential and desirable diagnostic criteria for each of them. Among these, genetic alterations play an important role associated with morphology. For the first time, epigenetic data can also constitute essential and/or desirable criteria. These genetic abnormalities can be fusions, deletions or gains/amplifications and can thus be detected by fluorescence in situ hybridization techniques. The purpose of this article is to present the advantages and limitations of this technique in reference to its specific use within neuro-oncopathology in light of the 2021 WHO classification.
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Affiliation(s)
- Arnault Tauziède-Espariat
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France.
| | - Amélie Tartar
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Leïla Mehdi
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Noémie Pucelle
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Joëlle Lacombe
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Charlotte Berthaud
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Enola Brigot
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Joëlle Massé
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Alice Métais
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Joseph Benzakoun
- Service de neuroradiologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 75014 Paris, France
| | - Lauren Hasty
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Fabrice Chrétien
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - Pascale Varlet
- Service de neuropathologie, GHU de Paris-psychiatrie et neurosciences, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
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Guillard M, Caumont C, Marcorelles P, Merlio JP, Cappellen D, Uguen A. Performances of the Idylla GeneFusion Assay: contribution to a rapid diagnosis of targetable gene fusions in tumour samples. J Clin Pathol 2023:jcp-2023-208798. [PMID: 37185257 DOI: 10.1136/jcp-2023-208798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023]
Abstract
AIMS We aimed to evaluate the performances of the Idylla GeneFusion Assay (IGFA) designed to detect, in a single, rapid and fully automated assay, ALK, ROS1, RET, NTRK1, NTRK2 and NTRK3 gene fusions and MET exon 14 skipping in cancer samples. METHODS Based on a set of tumours enriched in cases with gene fusions, we applied the IGFA to tumour areas of various sizes and tumour cell contents. IGFA results were compared with those obtained with other methods (immunohistochemistry, fluorescent in situ hybridisation, DNA and RNA next-generation sequencing). RESULTS We selected 68 tumours: 49 cases with known gene fusions (8 ALK, 8 ROS1, 5 RET, 7 NTRK1, 3 NTRK2 and 6 NTRK3 ones) or MET exon 14 skipping mutations (12 cases) and 19 cases with no fusion and no MET mutation. We performed 128 IGFA tests on distinct tissue areas. The global sensitivity and specificity of the IGFA were, respectively, 62.82% and 99.2% with variations between molecular targets and tissue areas. Of note, 72.5% sensitivity and 98.79% specificity were obtained in 37 tissue areas fulfilling the manufacturer's recommendations (ie, at least 10% of tumour cells in at least 20 mm² of tissue area). The rate of non-conclusive results was higher in small samples with low percentages of tumour cells. CONCLUSIONS The IGFA could contribute to the rapid detection of targetable gene fusions and mutations, especially in context of rapidly growing cancers requiring urgent therapeutic choices.
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Affiliation(s)
- Matthieu Guillard
- Service d'Anatomie et Cytologie Pathologiques, CHRU Brest, Brest, France
| | - Charline Caumont
- Service de Biologie des Tumeurs, CHU Bordeaux, Pessac, France
- BRIC (BoRdeaux Institute of onCology), UMR1312, INSERM, Université de Bordeaux, Pessac, France
| | - Pascale Marcorelles
- Service d'Anatomie et Cytologie Pathologiques, CHRU Brest, Brest, France
- LBAI, UMR1227 INSERM, Université de Bretagne Occidentale, Brest, France
| | - Jean-Philippe Merlio
- Service de Biologie des Tumeurs, CHU Bordeaux, Pessac, France
- BRIC (BoRdeaux Institute of onCology), UMR1312, INSERM, Université de Bordeaux, Pessac, France
| | - David Cappellen
- Service de Biologie des Tumeurs, CHU Bordeaux, Pessac, France
- BRIC (BoRdeaux Institute of onCology), UMR1312, INSERM, Université de Bordeaux, Pessac, France
| | - Arnaud Uguen
- Service d'Anatomie et Cytologie Pathologiques, CHRU Brest, Brest, France
- LBAI, UMR1227 INSERM, Université de Bretagne Occidentale, Brest, France
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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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: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Bourhis A, Caumont C, Quintin-Roué I, Magro E, Dissaux G, Remoué A, Le Noac'h P, Douet-Guilbert N, Seizeur R, Tyulyandina A, Schick U, Merlio JP, Marcorelles P, Cappellen D, Uguen A. Detection of NTRK fusions in glioblastoma: fluorescent in situ hybridisation is more useful than pan-TRK immunohistochemistry as a screening tool prior to RNA sequencing. Pathology 2021:S0031-3025(21)00429-3. [PMID: 34518039 DOI: 10.1016/j.pathol.2021.05.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 11/22/2022]
Abstract
Glioblastomas are frequent malignant brain tumours with a very poor prognosis and a need for new and efficient therapeutic strategies. With the approval of anti-TRK targeted therapies to treat patients with advanced NTRK-rearranged cancers, independent of the type of cancer, potential new treatment opportunities are available for the 0.5-5% of patients with NTRK-rearranged glioblastomas. Identification of these rare NTRK-rearranged glioblastomas requires efficient diagnostic tools and strategies which are evaluated in this study. We compared the results of NTRK1, NTRK2 and NTRK3 fluorescent in situ hybridisation (FISH) assays to those of pan-TRK immunohistochemistry (IHC) using two EPR17341 and A7H6R clones in a set of 196 patients with glioblastomas. Cases with at least 15% of positive nuclei using FISH analyses were further analysed using RNA sequencing. Above the 15% threshold, seven positive glioblastomas (3.57%) were identified by FISH assays (4 NTRK1, 3 NTRK2, no NTRK3). NTRK rearrangements were confirmed by RNA sequencing analyses in four cases [1 LMNA-NTRK1, 1 PRKAR2A-NTRK2, 1 SPECC1L-NTRK2 and 1 NACC2-NTRK2 fusions, i.e., 4/196 (2%) of NTRK-rearranged tumours in our series] but no rearrangement was detected in three samples with less than 30% of positive tumour nuclei as determined by NTRK1 FISH. Pan-TRK immunostaining showed major discrepancies when using either the EPR17341 or the A7H6R clones for the following criteria: main intensity, H-Score based scoring and homogeneity/heterogeneity of staining (Kappa values <0.2). This led to defining adequate criteria to identify NTRK-rearranged gliomas exhibiting strong and diffuse immunostaining contrasting to the variable and heterogeneous staining in non-NTRK-rearranged gliomas (p<0.0001). As assessing NTRK rearrangements has become crucial for glioma therapy, FISH seems to be a valuable tool to maximise access to TRK testing in patients with glioblastomas. In contrast to other cancers, pan-TRK IHC appears of limited interest in this field because there is no 'on/off' IHC positivity criterion to distinguish between NTRK-rearranged and non-NTRK-rearranged gliomas. RNA sequencing analyses are necessary in FISH positive cases with less than 30% positive nuclei, to avoid false positivity when scoring is close to the detection threshold.
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Bocciarelli C, Caumont C, Samaison L, Cariou M, Aline-Fardin A, Doucet L, Roudié J, Terris B, Merlio JP, Marcorelles P, Cappellen D, Uguen A. MSI-High RAS-BRAF wild-type colorectal adenocarcinomas with MLH1 loss have a high frequency of targetable oncogenic gene fusions whose diagnoses are feasible using methods easy-to-implement in pathology laboratories. Hum Pathol 2021; 114:99-109. [PMID: 34019865 DOI: 10.1016/j.humpath.2021.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 12/17/2022]
Abstract
Targetable kinase fusions are extremely rare (<1%) in colorectal cancers (CRCs), making their diagnosis challenging and often underinvestigated. They have been shown particularly frequently among MSI-High, BRAF/KRAS/NRAS wild-type CRCs with MLH1 loss (MLH1loss MSI-High wild-type). We searched for NTRK1, NTRK2, NTRK3, ALK, ROS1, BRAF, RET, and NRG1 kinase fusions in CRCs using methods easy-to-implement in pathology laboratories: immunohistochemistry (IHC), fluorescent in situ hybridization (FISH), and fully automated real-time PCR targeted analyses. RNA-sequencing analyses were used for confirmation. Among 84 selected MLH1 deficient (IHC) CRCs cases, MLH1loss MSI-High wild-type CRCs consisted first in 19 cases after Idylla™ analyses and finally in 18 cases (21%) after RNA-sequencing (detection of one additional KRASG12D mutation). FISH (and when relevant, IHC) analyses concluded in 5 NTRK1, 3 NTRK3, 1 ALK, 2 BRAF, and 2 RET FISH positive tumors. ALK and NTRK1 rearranged tumors were IHC positive, but pan-TRK IHC was negative in the 3 NTRK3 FISH positive tumors. RNA-sequencing analyses confirmed 12 of 13 fusions with only one false positive RET FISH result. Finally, 12/18 (67%) of MLH1loss MSI-High wild-type CRCs contained targetable kinase fusions. Our study demonstrates the feasibility, but also the cost-effectiveness, of a multistep but rapid diagnostic strategy based on nonsequencing methods to identify rare and targetable kinase fusions in patients with advanced CRCs, as well as the high prevalence of these kinase fusions in MLH1loss MSI-High wild-type CRCs. Nevertheless, confirmatory RNA-sequencing analyses are necessary in case of low FISH positive nuclei percentage to rule out FISH false-positive results.
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Affiliation(s)
- Claire Bocciarelli
- CHU de la Martinique, Service d'anatomie et Cytologie Pathologiques, Fort-de-France, F-97261, France.
| | - Charline Caumont
- CHU Bordeaux, Department of Tumor Biology, Pessac, F-33600, France; Inserm U1053 BaRITOn, Univ Bordeaux, Bordeaux, F-33000, France.
| | | | - Mélanie Cariou
- Registre des Cancers Digestifs du Finistère EA7479 SPURBO, Université de Bretagne Occidentale Brest, F-29200, France.
| | - Aude Aline-Fardin
- CHU de la Martinique, Service d'anatomie et Cytologie Pathologiques, Fort-de-France, F-97261, France.
| | - Laurent Doucet
- CHRU Brest, Service d'anatomie et Cytologie Pathologiques, Brest, F-29200, France.
| | - Jean Roudié
- CHU de la Martinique, Service de Chirurgie Digestive, Fort-de-France, F-97261, France.
| | - Benoît Terris
- Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux Universitaires Paris Centre, Hôpital Cochin, Service d'anatomie et Cytologie Pathologiques, Paris, F-75014, France.
| | - Jean-Philippe Merlio
- CHU Bordeaux, Department of Tumor Biology, Pessac, F-33600, France; Inserm U1053 BaRITOn, Univ Bordeaux, Bordeaux, F-33000, France.
| | - Pascale Marcorelles
- CHRU Brest, Service d'anatomie et Cytologie Pathologiques, Brest, F-29200, France.
| | - David Cappellen
- CHU Bordeaux, Department of Tumor Biology, Pessac, F-33600, France; Inserm U1053 BaRITOn, Univ Bordeaux, Bordeaux, F-33000, France.
| | - Arnaud Uguen
- CHU de la Martinique, Service d'anatomie et Cytologie Pathologiques, Fort-de-France, F-97261, France; Univ Brest, Inserm, CHU de Brest, LBAI, UMR1227, Brest, 29200, France.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Fujii T, Uchiyama T, Matsuoka M, Myojin T, Sugimoto S, Nitta Y, Okabe F, Sugimoto A, Sekita-Hatakeyama Y, Morita K, Itami H, Hatakeyama K, Ohbayashi C. Evaluation of DNA and RNA quality from archival formalin-fixed paraffin-embedded tissue for next-generation sequencing - Retrospective study in Japanese single institution. Pathol Int 2020; 70:602-611. [PMID: 32542983 DOI: 10.1111/pin.12969] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 12/21/2022]
Abstract
Genetic analysis on formalin-fixed paraffin-embedded (FFPE) tissue specimens has become a mainstream method, from conventional direct sequencing to comprehensive analysis using next-generation sequencing (NGS). In this study, we evaluated the quality of DNA and RNA extracted from FFPE sections, derived from surgical specimens of different tumor types. Electrophoresis was performed using a 4200 TapeStation to evaluate DNA and RNA fragmentation. DNA Ct values were higher and significantly increased over a period of 4 years compared with those from cell lines or frozen tissues. The RNA integrity number equivalent (RIN) ranged from 1 to 4.1 and DV200 ranged from 7.3 to 81%. Twelve of the 108 cases were analyzed by NGS using the AmpliSeq Cancer HotSpot Panel v2 on a Miniseq system. A sufficient number of reads and coverage were obtained in all cases. Our results revealed that NGS analysis was sufficient for FFPE-derived DNA within 4 years of preservation. Conversely, approximately 20% of the RNA derived from FFPE within 4 years from the collection could be inappropriate for gene analysis based on RIN and DV200. It was suggested that FFPE would be adequate for genetic analysis, although it is desirable to store frozen specimens for the tumor tissues to be subjected to genetic analysis.
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Affiliation(s)
- Tomomi Fujii
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Tomoko Uchiyama
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Minami Matsuoka
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Tomoya Myojin
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Sumire Sugimoto
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Yuji Nitta
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Fumi Okabe
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Aya Sugimoto
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Yoko Sekita-Hatakeyama
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Kohei Morita
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Hiroe Itami
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Kinta Hatakeyama
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
| | - Chiho Ohbayashi
- Department of Diagnostic Pathology, Nara Medical University School of Medicine, Nara, Japan
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Zito Marino F, Rossi G, Cozzolino I, Montella M, Micheli M, Bogina G, Munari E, Brunelli M, Franco R. Multiplex fluorescence in situ hybridisation to detect anaplastic lymphoma kinase and ROS proto-oncogene 1 receptor tyrosine kinase rearrangements in lung cancer cytological samples. J Clin Pathol 2019; 73:96-101. [PMID: 31562206 DOI: 10.1136/jclinpath-2019-206152] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/06/2019] [Accepted: 09/11/2019] [Indexed: 01/17/2023]
Abstract
AIMS Several predictive biomarkers of response to specific inhibitors have become mandatory for the therapeutic choice in non-small-cell lung cancer (NSCLC). In most lung cancer patients, the biological materials available to morphological and molecular diagnosis are exclusively cytological samples and minimum tumour wastage is necessary. Multiplex fluorescence in situ hybridisation (mFISH) to detect simultaneously ALK-rearrangement and ROS1-rearrangement on a single slide could be useful in clinical practice to save cytological samples for further molecular analysis. In this study, we aim to validate diagnostic performance of multiplex ALK/ROS1 fluorescence in situ hybridisation (FISH) approach in lung adenocarcinoma cytological series compared with classic single break apart probes. METHODS We collected a series of 61 lung adenocarcinoma cytological specimens enriched in tumours harbouring ALK-rearrangement and ROS1-rearrangement. ALK and ROS1 status were previously assessed by classic FISH test using single break apart probes and immunohistochemistry. Study population was composed of 6 ALK-positive, 2 ROS1-positive and 53 ALK/ROS1-wild type. All specimens were analysed by multiplex FISH assay using FlexISH ALK/ROS1 DistinguISH Probe Zytovision. RESULTS The dual ALK/ROS1 FISH probe test results were fully concordant with the results of previous single ALK and ROS1 FISH tests on two different slides. 6 ALK-positive and 2 ROS1-positive were confirmed through multiplex FISH test, without false-positive and false-negative results. Multiplex ALK/ROS1 FISH test results agreed with immunohistochemistry assay staining results. CONCLUSION Multiplex ALK/ROS1 FISH probe test is a useful tool to detect simultaneously ALK-rearrangement and ROS1-rearrangement on a single slide in cytological specimens with a small amount of biomaterial.
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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
| | - Giulio Rossi
- Pathology Unit, Ospedale Santa Maria delle Croci, Ravenna, Italy
| | - Immacolata Cozzolino
- Department of Mental and Physic Health and Preventive Medicine, Pathology Unit, University of Campania Luigi Vanvitelli, Napoli, Italy
| | - Marco Montella
- Department of Mental and Physic Health and Preventive Medicine, Pathology Unit, University of Campania Luigi Vanvitelli, Napoli, Italy
| | | | - Giuseppe Bogina
- Department of Pathology, Sacro Cuore Don Calabria Hospital, Negrar, Italy, Negrar, Italy
| | - Enrico Munari
- Department of Pathology, Sacro Cuore Don Calabria Hospital, Negrar, Italy, Negrar, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Verona, 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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Lambros L, Uguen A. NanoString System Versus Multiplex Fluorescent In Situ Hybridization for Gene Fusion Diagnosis in Lung Cancer Cytology Samples: Competing or Complementary Methods? Arch Pathol Lab Med 2018; 142:1451-1452. [PMID: 30500277 DOI: 10.5858/arpa.2018-0251-le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Laetitia Lambros
- 1 Department of Pathology, Centre Hospitalier Régional et Universitaire de Brest, Brest, France
| | - Arnaud Uguen
- 1 Department of Pathology, Centre Hospitalier Régional et Universitaire de Brest, Brest, France.,2 Inserm U1053 BaRITOn, Bordeaux, France
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