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Longo V, Pesola F, Lacalamita R, Catino A, Montrone M, Marech I, Pizzutilo P, Montagna ES, Tommasi S, Galetta D. Successful treatment of a non-small-cell lung cancer patient harboring HIP1-ALK (H28:A20) and CTNNB1 p.S45del with alectinib. Thorac Cancer 2024. [PMID: 39318178 DOI: 10.1111/1759-7714.15397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/28/2024] [Accepted: 06/14/2024] [Indexed: 09/26/2024] Open
Abstract
This is the first case report of a non-small-cell lung cancer (NSCLC) patient harboring HIP1-ALK (H28:A20) and CTNNB1 p.S45del treated with first-line alectinib. Approximately 5% of NSCLC patients are reported to have anaplastic lymphoma kinase (ALK) rearrangements, and among these EML4-ALK is the most frequent fusion variant. However, in recent years the use of next-generation sequencing (NGS) in clinical laboratories has become increasingly widespread, identifying a lot of new ALK fusion partners as well as a large quantity of co-occurring genomic alterations. Unfortunately, the growing number of genomic alterations detected by NGS does not always correspond to adequate knowledge of their clinical significance, often resulting in an empiric treatment of patients harboring uncommon mutations.
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Affiliation(s)
- Vito Longo
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Francesco Pesola
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Rosanna Lacalamita
- Molecular Diagnostics and Pharmacogenetics Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Annamaria Catino
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Michele Montrone
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Ilaria Marech
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Pamela Pizzutilo
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | | | - Stefania Tommasi
- Molecular Diagnostics and Pharmacogenetics Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Domenico Galetta
- Thoracic Oncology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
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The Impact of YRNAs on HNSCC and HPV Infection. Biomedicines 2023; 11:biomedicines11030681. [PMID: 36979661 PMCID: PMC10045647 DOI: 10.3390/biomedicines11030681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/20/2023] [Accepted: 02/17/2023] [Indexed: 02/27/2023] Open
Abstract
HPV infection is one of the most important risk factors for head and neck squamous cell carcinoma among younger patients. YRNAs are short non-coding RNAs involved in DNA replication. YRNAs have been found to be dysregulated in many cancers, including head and neck squamous cell carcinoma (HNSCC). In this study, we investigated the role of YRNAs in HPV-positive HNSCC using publicly available gene expression datasets from HNSCC tissue, where expression patterns of YRNAs in HPV(+) and HPV(−) HNSCC samples significantly differed. Additionally, HNSCC cell lines were treated with YRNA1-overexpressing plasmid and RNA derived from these cell lines was used to perform a NGS analysis. Additionally, a deconvolution analysis was performed to determine YRNA1’s impact on immune cells. YRNA expression levels varied according to cancer pathological and clinical stages, and correlated with more aggressive subtypes. YRNAs were mostly associated with more advanced cancer stages in the HPV(+) group, and YRNA3 and YRNA1 expression levels were found to be correlated with more advanced clinical stages despite HPV infection status, showing that they may function as potential biomarkers of more advanced stages of the disease. YRNA5 was associated with less-advanced cancer stages in the HPV(−) group. Overall survival and progression-free survival analyses showed opposite results between the HPV groups. The expression of YRNAs, especially YRNA1, correlated with a vast number of proteins and cellular processes associated with viral infections and immunologic responses to viruses. HNSCC-derived cell lines overexpressing YRNA1 were then used to determine the correlation of YRNA1 and the expression of genes associated with HPV infections. Taken together, our results highlight the potential of YRNAs as possible HNSCC biomarkers and new molecular targets.
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Zhang X, Liu H, Wang H, Zhao R, Lu Q, Liu Y, Han Y, LuluRen, Pan H, Han W. B3galt5 deficiency attenuates hepatocellular carcinoma by suppressing mTOR/p70s6k-mediated glycolysis. Cell Mol Life Sci 2022; 80:8. [PMID: 36495345 PMCID: PMC11072394 DOI: 10.1007/s00018-022-04601-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 12/13/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies with high morbidity and mortality. Beta-1,3-galactosyltransferase 5 (b3galt5) plays crucial roles in protein glycosylation, but its function in HCC remains unclear. Here, we investigated the role and underlying mechanism of b3galt5 in HCC. We found that b3galt5 is highly expressed and associated with a poor prognosis in HCC patients. In vitro studies showed that b3galt5 promoted the proliferation and survival of HCC cells. We also demonstrated that b3galt5 deficiency suppressed hepatocarcinogenesis in DEN/TCPOBOP-induced HCC. Further investigation confirmed that b3galt5 promoted aerobic glycolysis in HCC. Mechanistically, b3galt5 promoted glycolysis by activating the mTOR/p70s6k pathway through O-linked glycosylation modification on mTOR. Moreover, p70s6k inhibition reduced the expression of key glycolytic enzymes and the glycolysis rate in b3galt5-overexpressing cells. Our study uncovers a novel mechanism by which b3galt5 mediates glycolysis in HCC and highlights the b3galt5-mTOR/p70s6k axis as a potential target for HCC therapy.
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Affiliation(s)
- Xiaoling Zhang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
- Department of Medical Oncology, Hangzhou First People's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hao Liu
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
- Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Haidong Wang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Rongjie Zhao
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Qian Lu
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Yunlong Liu
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
- Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yicheng Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - LuluRen
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China
| | - Hongming Pan
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China.
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3# East Qingchun Road, Hangzhou, 310016, Zhejiang, China.
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Therapeutic Advances of Rare ALK Fusions in Non-Small Cell Lung Cancer. Curr Oncol 2022; 29:7816-7831. [PMID: 36290895 PMCID: PMC9601201 DOI: 10.3390/curroncol29100618] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/05/2022] [Accepted: 10/13/2022] [Indexed: 01/11/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) accounts for approximately 85% of all lung cancer cases and is the leading cause of cancer-related death. Despite advances in chemotherapy and immunotherapy, the prognosis for advanced patients remains poor. The discovery of oncogenic driver mutations, such as anaplastic lymphoma kinase (ALK) mutations, means that a subset of patients has opportunities for targeted therapy. With the improvement of genetic testing coverage, more and more ALK fusion subtypes and ALK partners have been discovered, and more than 90 rare ALK fusion subtypes have been found in NSCLC. However, unlike the common fusion, echinoderm microtubule-associated protein-like 4 (EML4)-ALK, some rare ALK fusions such as striatin (STRN)-ALK and huntingtin interacting protein 1 (HIP1)-ALK, etc., the large-scale clinical data related to its efficacy are still immature. The clinical application of ALK-tyrosine kinase inhibitors (ALK-TKIs) mainly depends on the positivity of the ALK gene, regardless of the molecular characteristics of the fusion partner. Recent clinical studies in the ALK-positive NSCLC population have demonstrated differences in progression-free survival (PFS) among patients based on different ALK fusion subtypes. This article will introduce the biological characteristics of ALK fusion kinase and common detection methods of ALK fusion and focus on summarizing the differential responses of several rare ALK fusions to ALK-TKIs, and propose corresponding treatment strategies, so as to better guide the application of ALK-TKIs in rare ALK fusion population.
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RNA-sequencing of myxoinflammatory fibroblastic sarcomas reveals a novel SND1::BRAF fusion and 3 different molecular aberrations with the potential to upregulate the TEAD1 gene including SEC23IP::VGLL3 and TEAD1::MRTFB gene fusions. Virchows Arch 2022; 481:613-620. [PMID: 35776191 DOI: 10.1007/s00428-022-03368-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 10/17/2022]
Abstract
Myxoinflammatory fibroblastic sarcoma (MIFS) has been shown to harbor various recurrent molecular aberrations; most of which, however, seem to be present in only a minority of cases. In order to better characterize the molecular underpinnings of MIFS, fourteen cases were analyzed by targeted RNA-sequencing (RNA-seq), VGLL3 enumeration FISH probe, and BRAF break-apart and enumeration probes. Neither t(1;10)(p22;q24) nor BRAF gene amplifications were found. However, VGLL3 gene amplification was detected in 5 cases by FISH which corresponded with an increase in VGLL3 expression detected by RNA-seq. In 1 of these cases, RNA-seq additionally revealed a novel SND1::BRAF fusion. Two of the 9 cases lacking VGLL3 amplification harbored either a SEC23IP::VGLL3 or a TEAD1::MRTFB rearrangement by RNA-seq, both confirmed by RT-PCR and Sanger sequencing. The detected molecular aberrations have a potential to either activate the expression of genes regulated by the transcription factors of the TEAD family, which are involved in tumor initiation and progression, or switch on the MEK/ERK signaling cascade, which plays an important role in cell cycle progression. Our results broaden the molecular genetic spectrum of MIFS and point toward the importance of the VGLL3-TEAD interaction, as well as the deregulation of the MEK/ERK pathway in the pathogenesis of MIFS, and may represent a potential target for therapy of recurrent or advanced disease.
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Sharma S, Mishra SK, Bhardwaj M, Jha S, Geller M, Dewan A, Jain E, Dixit M, Jain D, Munjal G, Kumar S, Mohanty SK. Correlation of ROS1 (D4D6) Immunohistochemistry with ROS1 Fluorescence In Situ Hybridization Assay in a Contemporary Cohort of Pulmonary Adenocarcinomas. South Asian J Cancer 2022; 11:249-255. [PMID: 36588618 PMCID: PMC9803544 DOI: 10.1055/s-0042-1750187] [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] [Indexed: 01/04/2023] Open
Abstract
Sambit K. MohantyObjective Repressor of Silencing ( ROS1 ) gene rearrangement in the lung adenocarcinomas is one of the targetable mutually exclusive genomic alteration. Fluorescence in situ hybridization (FISH), immunohistochemistry (IHC), next-generation sequencing, and reverse transcriptase polymerase chain reaction assays are generally used to detect ROS1 gene alterations. We evaluated the correlation between ROS1 IHC and FISH analysis considering FISH as the gold standard method to determine the utility of IHC as a screening method for lung adenocarcinoma. Materials and Methods A total of 374 advanced pulmonary adenocarcinoma patients were analyzed for ROS1 IHC on Ventana Benchmark XT platform using D4D6 rabbit monoclonal antibody. FISH assay was performed in parallel in all these cases using the Vysis ROS1 Break Apart FISH probe. Statistical Analysis The sensitivity, specificity, positive and negative likelihood ratios, positive and negative predictive values, and accuracy were evaluated. Results A total of 17 tumors were positive either by IHC or FISH analysis or both (true positive). Four tumors were positive by IHC (H-score range: 120-270), while negative on FISH analysis (false positive by IHC). One tumor was IHC negative, but positive by FISH analysis (false negative). The sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, positive predictive value, negative predictive value, and accuracy were 94.4% (confidence interval [CI]: 72.71-99.86%), 63.6% (CI: 30.79-89.07%), 2.6 (CI: 1.18-5.72), 0.09 (CI: 0.01-0.62), 80.95% (CI: 65.86-90.35%), 87.5% (CI: 49.74-98.02%), and 82.76%, respectively. Conclusion ROS1 IHC has high sensitivity at a cost of lower specificity for the detection of ROS1 gene rearrangement. All IHC positive cases should undergo a confirmatory FISH test as this testing algorithm stands as a reliable and economic tool to screen ROS1 rearrangement in lung adenocarcinomas.
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Affiliation(s)
- Shivani Sharma
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Sourav K. Mishra
- Department of Medical Oncology, SUM Hospital, Bhubaneswar, Odisha, India
| | - Mohit Bhardwaj
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Shilpy Jha
- Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, Odisha, India
| | - Matthew Geller
- Department of Pathology and Laboratory Medicine, Washington County Pathologists, PC Hillsboro, Oregon, United States
| | - Aditi Dewan
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Ekta Jain
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Mallika Dixit
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Deepika Jain
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Gauri Munjal
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Shivmurti Kumar
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Sambit K. Mohanty
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India,Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, Odisha, India,Address for correspondence Sambit K. Mohanty, MD Director, Oncologic Surgical and Molecular Pathology, Advanced Medical Research Institute, Senior Oncologic Surgical and Molecular Pathologist, CORE Diagnostics406, Udyog Vihar III, Gurgaon, Haryana, 122001India
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Conde E, Rojo F, Gómez J, Enguita AB, Abdulkader I, González A, Lozano D, Mancheño N, Salas C, Salido M, Salido-Ruiz E, de Álava E. Molecular diagnosis in non-small-cell lung cancer: expert opinion on ALK and ROS1 testing. J Clin Pathol 2022; 75:145-153. [PMID: 33875457 PMCID: PMC8862096 DOI: 10.1136/jclinpath-2021-207490] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 01/09/2023]
Abstract
The effectiveness of targeted therapies with tyrosine kinase inhibitors in non-small-cell lung cancer (NSCLC) depends on the accurate determination of the genomic status of the tumour. For this reason, molecular analyses to detect genetic rearrangements in some genes (ie, ALK, ROS1, RET and NTRK) have become standard in patients with advanced disease. Since immunohistochemistry is easier to implement and interpret, it is normally used as the screening procedure, while fluorescence in situ hybridisation (FISH) is used to confirm the rearrangement and decide on ambiguous immunostainings. Although FISH is considered the most sensitive method for the detection of ALK and ROS1 rearrangements, the interpretation of results requires detailed guidelines. In this review, we discuss the various technologies available to evaluate ALK and ROS1 genomic rearrangements using these techniques. Other techniques such as real-time PCR and next-generation sequencing have been developed recently to evaluate ALK and ROS1 gene rearrangements, but some limitations prevent their full implementation in the clinical setting. Similarly, liquid biopsies have the potential to change the treatment of patients with advanced lung cancer, but further research is required before this technology can be applied in routine clinical practice. We discuss the technical requirements of laboratories in the light of quality assurance programmes. Finally, we review the recent updates made to the guidelines for the determination of molecular biomarkers in patients with NSCLC.
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Affiliation(s)
- Esther Conde
- Department of Pathology and Laboratory of Therapeutic Targets & CIBERONC, HM Hospitales, Madrid, Spain
| | - Federico Rojo
- Department of Pathology, Hospital Universitario Fundacion Jiménez Díaz, Madrid, Spain
| | - Javier Gómez
- Department of Pathology, Hospital Universitario Marques de Valdecilla, Santander, Cantabria, Spain
- Instituto de Investigación Sanitaria Valdecilla IDIVAL, Universidad de Cantabria, Santander, Cantabria, Spain
| | - Ana Belén Enguita
- Department of Pathology, Clínica Dermatológica Internacional, Madrid, Spain
| | - Ihab Abdulkader
- Department of Pathology, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Galicia, Spain
| | - Ana González
- Department of Pathology, Hospital Álvaro Cunqueiro, Vigo, Spain
| | - Dolores Lozano
- Department of Pathology, Clinica Universidad de Navarra, Pamplona, Navarra, Spain
| | - Nuria Mancheño
- Department of Pathology, La Fe University and Polytechnic Hospital, Valencia, Comunidad Valenciana, Spain
| | - Clara Salas
- Department of Pathology, Hospital Universitario Puerta del Hierro Majadahonda, Majadahonda, Madrid, Spain
| | - Marta Salido
- Department of Pathology, Hospital del Mar, Barcelona, Spain
| | - Eduardo Salido-Ruiz
- Department of Pathology, Hospital Universitario de Canarias, La Laguna, Canarias, Spain
| | - Enrique de Álava
- Department of Pathology, Hospital Universitario Virgen del Rocío, Sevilla, Spain
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Direct identification of ALK and ROS1 fusions in non-small cell lung cancer from hematoxylin and eosin-stained slides using deep learning algorithms. Mod Pathol 2022; 35:1882-1887. [PMID: 36057739 PMCID: PMC9708557 DOI: 10.1038/s41379-022-01141-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 12/24/2022]
Abstract
Anaplastic lymphoma kinase (ALK) and ROS oncogene 1 (ROS1) gene fusions are well-established key players in non-small cell lung cancer (NSCLC). Although their frequency is relatively low, their detection is important for patient care and guides therapeutic decisions. The accepted methods used for their detection are immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) assay, as well as DNA and RNA-based sequencing methodologies. These assays are expensive, time-consuming, and require technical expertise and specialized equipment as well as biological specimens that are not always available. Here we present an alternative detection method using a computer vision deep learning approach. An advanced convolutional neural network (CNN) was used to generate classifier models to detect ALK and ROS1-fusions directly from scanned hematoxylin and eosin (H&E) whole slide images prepared from NSCLC tumors of patients. A two-step training approach was applied, with an initial unsupervised training step performed on a pan-cancer sample cohort followed by a semi-supervised fine-tuning step, which supported the development of a classifier with performances equal to those accepted for diagnostic tests. Validation of the ALK/ROS1 classifier on a cohort of 72 lung cancer cases who underwent ALK and ROS1-fusion testing at the pathology department at Sheba Medical Center displayed sensitivities of 100% for both genes (six ALK-positive and two ROS1-positive cases) and specificities of 100% and 98.6% respectively for ALK and ROS1, with only one false-positive result for ROS1-alteration. These results demonstrate the potential advantages that machine learning solutions may have in the molecular pathology domain, by allowing fast, standardized, accurate, and robust biomarker detection overcoming many limitations encountered when using current techniques. The integration of such novel solutions into the routine pathology workflow can support and improve the current clinical pipeline.
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9
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Pan R, Wang Z, Wang X, Fang R, Xia Q, Rao Q. CRTC1-SS18 Fusion Sarcoma With Aberrant Anaplastic Lymphoma Kinase Expression. Int J Surg Pathol 2021; 30:99-105. [PMID: 34057377 DOI: 10.1177/10668969211021997] [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: 11/15/2022]
Abstract
Undifferentiated small round cell sarcoma (USRCS) represents a highly heterogeneous group of tumors. A variety of specific gene fusions of USRCS have been reported, including CIC-FOXO4, CIC-NUTM1, BCOR-MAML3, and ZC3H7B-BCOR. Here we report a case of sarcoma harboring a rare recurrent CRTC1-SS18 gene fusion, which was considered as USRCS previously. This sarcoma was composed of nests of small round cells encapsulated in a fibrous stroma. Foci of necrosis and hemorrhage were observed in the tumor. Immunohistochemistry for anaplastic lymphoma kinase showed diffuse positivity. RNA-seq results revealed a chromosomal translocation of CRTC1 gene exon 1 on chromosome 19 with SS18 gene exon 2 on chromosome 18. Thereafter, fluorescence in-situ hybridization confirmed the presence of SS18 gene and CRTC1 gene break-apart, which manifested as the splitting of red and green signals into 2 parts. A previous study showed that CRTC1-SS18 fusion sarcoma and EWSR1-CREB1 fusion angiomatoid fibrous histiocytoma were clustered close in the expression profile. However, whether CRTC1-SS18 fusion sarcomas represent a high malignancy has been a matter of debate. Our study is a worthy addition to the series of rare rearrangements associated with sarcomas and may be of therapeutic relevance.
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Affiliation(s)
- Rui Pan
- Jinling Hospital, 144990Medical School of Nanjing University, Nanjing, China
| | - Ziyu Wang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Traditional Chinese Medicine, Nanjing, China
| | - Xiaotong Wang
- Jinling Hospital, 144990Medical School of Nanjing University, Nanjing, China
| | - Ru Fang
- Jinling Hospital, 144990Medical School of Nanjing University, Nanjing, China
| | - Qiuyuan Xia
- Jinling Hospital, 144990Medical School of Nanjing University, Nanjing, China
| | - Qiu Rao
- Jinling Hospital, 144990Medical School of Nanjing University, Nanjing, China
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Wang B, Chen R, Wang C, Guo J, Yuan M, Chen H, Xia X, Zhong D. Identification of novel ALK fusions using DNA/RNA sequencing in immunohistochemistry / RT-PCR discordant NSCLC patients. Hum Pathol 2021; 114:90-98. [PMID: 34019866 DOI: 10.1016/j.humpath.2021.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 12/25/2022]
Abstract
Anaplastic lymphocyte kinase (ALK) rearrangement, a key oncogenic driver promoting the expression of ALK protein in tumor cells, is found in 2%-7% of patients with nonsmall cell lung cancer (NSCLC). ALK fusion is routinely determined with immunohistochemistry (IHC) or RT-PCR in many laboratories. However, there were discordant cases. In this study, we employed a hybridization-based next-generation sequencing (NGS) of DNA and RNA to explore the underlying mechanisms. FFPE tissues of 302 NSCLC tumors, which had been ALK tested with IHC and RT-PCR, were retrospectively studied, of which 18 were IHC positive, and 14 were RT-PCR positive. This resulted in 4 discordant cases, which were further analyzed with NGS. One sample failed the RNA quality control due to extensive RNA degradation. Three non-EML4-ALK fusions were identified in the 4 cases with DNA sequencing, including a CLTC-ALK fusion (EX31:EX19), a WDPCP-ALK fusion (EX14:EX20), and a novel PLB1-ALK fusion (EX6:EX20). Interestingly, two additional fusions: STRN-ALK fusion (EX3:EX20) and DCTN1-ALK fusion (EX20:EX20), were identified with RNA sequencing. The discordance of IHC/RT-PCR was mainly due to limited coverage of non-EML4-ALK fusions in the RT-PCR assay. NGS-based DNA/RNA sequencing appears to be a promising rescue technique for nonclear-cut IHC/RT-PCR cases and also offers a unique opportunity to identify novel ALK fusions.
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Affiliation(s)
- Bei Wang
- Department of Pathology, China-Japan Friendship Hospital, Beijing, 100029, China.
| | | | | | - Jia Guo
- Department of Pathology, China-Japan Friendship Hospital, Beijing, 100029, China.
| | | | - Huang Chen
- Department of Pathology, China-Japan Friendship Hospital, Beijing, 100029, China.
| | | | - Dingrong Zhong
- Department of Pathology, China-Japan Friendship Hospital, Beijing, 100029, China.
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Tang Z, Chen H, Hong L, Tang G, Toruner GA, Wang W, Roy Chowdhuri S, Yin W, Jung HS, Gu J, Routbort MJ, Zhang J, Khoury JD, Medeiros LJ. Inconsistent Intersample ALK FISH Results in Patients with Lung Cancer: Analysis of Potential Causes. Cancers (Basel) 2020; 12:cancers12071903. [PMID: 32674491 PMCID: PMC7409019 DOI: 10.3390/cancers12071903] [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: 05/22/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022] Open
Abstract
ALK FISH analyses of multiple specimens occasionally yield inconsistent intersample results in lung cancer patients, posing clinical challenges requiring intensive analysis of all potential causative pre- and post- analytic factors. In this study, 19 patients (8M/11F) with inconsistent intersample ALK FISH results were analyzed, representing 4.9% of patients assessed ≥ twice in our institution. Fifteen patients received ALK tyrosine kinase inhibitor(s) (TKIs). Nine patients died, and ten were alive for 8 to 74-month follow-ups (median, 40 months). Through strict and stringent laboratory and case-review policies, all postanalytic factors were excluded. Correlating clinical information, ALK results obtained by RNA sequencing (RNA-seq) and other concurrent tests, several pre-analytic factors were determined. A suboptimal specimen was likely the cause in three patients, supported by the failure of one or more concurrent tests or discrepant results between FISH and RNA-seq. ALK inhibition by TKIs might have been responsible for the change of ALK status from positive to negative in eight patients. Other potential explanations include the existence of multiple primary lung cancer lesions, tumor heterogeneity, and the clonal evolution of tumor cells, related or not to ALK TKI therapy. This study is helpful for both pathologists and clinicians encountering inconsistent and/or discrepant intersample results.
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12
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Tachon G, Cortes U, Richard S, Martin S, Milin S, Evrard C, Lamour C, Karayan-Tapon L. Targeted RNA-sequencing assays: a step forward compared to FISH and IHC techniques? Cancer Med 2019; 8:7556-7566. [PMID: 31651105 PMCID: PMC6912030 DOI: 10.1002/cam4.2599] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/20/2019] [Accepted: 09/28/2019] [Indexed: 11/11/2022] Open
Abstract
Introduction ALK and ROS1 rearrangements are molecular targets of several tyrosine kinase inhibitors. RNA‐sequencing approaches are regarded as the new standard for fusion gene detection, representing an alternative to standard immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) techniques. Patients and Methods We aimed to compare two recent amplicon‐based RNA‐sequencing techniques: FusionPlex® Alk Ret Ros1 v2 Kit (Archer®) with FHS‐003Z‐12—Human Lung Cancer Panel (Qiagen®) and assessed the accuracy of the data for therapy management. Thirty‐seven formalin‐fixed paraffin‐embedded non‐small cell carcinoma (NSCC) lesions initially explored by IHC and FISH were selected for RNA‐sequencing analysis. Results Qiagen® and Archer® kits produced similar results and correctly identified 85.1% (23/27) and 81.5% (22/27) of IHC/FISH ALK‐ and ROS1‐positive samples, respectively, and 100% (6/6) of the negative samples. With regard to the ambiguous IHC‐positive/FISH‐negative cases, RNA‐sequencing confirmed 75% (3/4) of the FISH conclusion. Although not statistically significant, patients with common EML4‐ALK variants presented shorter overall survival and progression‐free survival compared with patients harboring rare variants. Conclusion Our findings assessed the implementation of RNA‐sequencing approaches to explore ALK and ROS1 rearrangements from formalin‐fixed paraffin‐embedded samples. We highlighted the similarities between Qiagen® and Archer® kits in terms of handling time, cost, and outcomes. We confirmed the feasibility of molecular testing in routine organization and its possible use not only as an alternative for standard IHC and FISH techniques, but as a supplementary technique helping to classify discrepant cases.
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Affiliation(s)
- Gaëlle Tachon
- Laboratoire de Neurosciences Expérimentales et Cliniques, Inserm U1084, Poitiers, France.,Université de Poitiers, Poitiers, France.,Laboratoire de Cancérologie Biologique, CHU de Poitiers, Poitiers, France
| | - Ulrich Cortes
- Laboratoire de Cancérologie Biologique, CHU de Poitiers, Poitiers, France
| | - Sophie Richard
- Université de Poitiers, Poitiers, France.,Service d'Anatomo-Cytopathologie, CHU de Poitiers, Poitiers, France
| | - Sébastien Martin
- Laboratoire de Cancérologie Biologique, CHU de Poitiers, Poitiers, France
| | - Serge Milin
- Service d'Anatomo-Cytopathologie, CHU de Poitiers, Poitiers, France
| | | | | | - Lucie Karayan-Tapon
- Laboratoire de Neurosciences Expérimentales et Cliniques, Inserm U1084, Poitiers, France.,Université de Poitiers, Poitiers, France.,Laboratoire de Cancérologie Biologique, CHU de Poitiers, Poitiers, France
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ALK immunohistochemistry positive, FISH negative NSCLC is infrequent, but associated with impaired survival following treatment with crizotinib. Lung Cancer 2019; 138:13-18. [PMID: 31630043 DOI: 10.1016/j.lungcan.2019.09.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Metastasized non-small cell lung cancer (NSCLC) with an anaplastic lymphoma kinase (ALK) rearrangement is usually sensitive to a range of ALK-tyrosine kinase inhibitors. ALK-positive NSCLC have been identified in pivotal phase III trials with fluorescence in situ hybridization (ALK FISH+). These tumors are also expressing the fusion product (ALK immunohistochemistry (IHC)+). However, discrepant cases occur, including ALK IHC + FISH-. The aim of this study was to collect ALK IHC + cases and compare within this group response to crizotinib treatment of ALK FISH + cases with ALK FISH- cases. MATERIALS AND METHODS In this European prospective multicenter research study patients with Stage IV ALK IHC + NSCLC treated with crizotinib were enrolled. Tumor slides were validated centrally for ALK IHC and ALK FISH. RESULTS Registration of 3523 ALK IHC tests revealed a prevalence of 2.7% (n = 94) ALK IHC + cases. Local ALK FISH analysis resulted in 48 concordant (ALK IHC+/FISH+) and 16 discordant (ALK IHC+/FISH-) cases. Central validation revealed 37 concordant and 7 discordant cases, 5 of which had follow-up. Validation was hampered by limited amount of tissue in biopsy samples. The PFS at 1 year for ALK concordant and discordant was 58% and 20%, respectively (HR = 2.4; 95% CI: 0.78-7.3; p = 0.11). Overall survival was significantly better for concordant cases than discordant cases after central validation (HR=4.5; 95% CI= 1.2-15.9; p=0.010. CONCLUSION ALK IHC + FISH- NSCLC is infrequent and associated with a worse outcome on personalized treatment. A suitable predictive testing strategy may be to screen first with IHC and then confirm with FISH instead of considering ALK IHC equivalent to ALK FISH according to the current guidelines.
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Fluorescence in Situ Hybridization (FISH) for Detecting Anaplastic Lymphoma Kinase ( ALK) Rearrangement in Lung Cancer: Clinically Relevant Technical Aspects. Int J Mol Sci 2019; 20:ijms20163939. [PMID: 31412611 PMCID: PMC6720438 DOI: 10.3390/ijms20163939] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/08/2019] [Accepted: 08/11/2019] [Indexed: 02/06/2023] Open
Abstract
In 2011, the Vysis Break Apart ALK fluorescence in situ hybridization (FISH) assay was approved by the United States Food and Drug Administration as a companion diagnostic for detecting ALK rearrangement in lung cancer patients who may benefit from treatment of tyrosine kinase inhibitor therapy. This assay is the current “gold standard”. According to updated ALK testing guidelines from the College of American Pathologists, the International Association for the Study of Lung Cancer and the Association for Molecular Pathology published in 2018, ALK immunohistochemistry is formally an alternative to ALK FISH, and simultaneous detection of multiple hot spots, including, at least, ALK, ROS1, RET, MET, ERBB2, BRAF and KRAS genes is also recommended while performing next generation sequencing (NGS)-based testing. Therefore, ALK status in a specimen can be tested by different methods and platforms, even in the same institution or laboratory. In this review, we discuss several clinically relevant technical aspects of ALK FISH, including pros and cons of the unique two-step (50- to 100-cell) analysis approach employed in the Vysis Break Apart ALK FISH assay, including: the preset cutoff value of ≥15% for a positive result; technical aspects and biology of discordant results obtained by different methods; and incidental findings, such as ALK copy number gain or amplification and co-existent driver mutations. These issues have practical implications for ALK testing in the clinical laboratory following the updated guidelines.
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15
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Liu HY, Lu SR, Guo ZH, Zhang ZS, Ye X, Du Q, Li H, Wu Q, Yu B, Zhai Q, Liu JL. lncRNA SLC16A1-AS1 as a novel prognostic biomarker in non-small cell lung cancer. J Investig Med 2019; 68:52-59. [PMID: 31371390 PMCID: PMC6996107 DOI: 10.1136/jim-2019-001080] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2019] [Indexed: 12/29/2022]
Abstract
Long non-coding RNAs (lncRNAs) have proved to act as crucial biomarkers in tumors. Novel biomarkers in non-small cell lung cancer (NSCLC) need to be investigated badly. To identify the differentially expressed lncRNAs between NSCLC tissue and adjacent tissue, microarray analysis was performed. lncRNA SLC16A1-AS1 was significantly less expressed in NSCLC tissue than that in adjacent tissue. Gain-of-function experiments was performed to determine the biological functions of SLC16A1-AS. In situhybridization and survival analysis were applied in lung cancer tissue samples to determine the prognostic role of SLC16A1-AS1. It was showed that SLC16A1-AS1 was remarkably downregulated in NSCLC tissues and cell lines. Functionally, SLC16A1-AS1 overexpression could inhibit the viability and proliferation of lung cancer cell, block the cell cycle and promote cell apoptosis in vitro which may result from reduced phosphorylation of rat sarcoma (RAS)/ proto-oncogene serine/threonine-protein kinase (RAF)/ mitogen-activated protein kinase kinase (MEK)/ extracellular regulated protein kinases (ERK) pathway caused by elevated expression of SLC16A1-AS1. Clinical sample analysis showed that SLC16A1-AS1 had a favorable impact on the overall survival and progression-free survival of patients with NSCLC. Our results suggested that SLC16A1-AS1 may act as a potential biomarker for patients with NSCLC.
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Affiliation(s)
- Hong Yue Liu
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Sheng Rong Lu
- Department of Pharmacy, The Central Hospital of Min-Hang District, Shanghai, China
| | - Zi Han Guo
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhi Sheng Zhang
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xuan Ye
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qiong Du
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Huan Li
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qiang Wu
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Bo Yu
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qing Zhai
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jin Long Liu
- Department of Biotechnology and Pathology, School of Medical Technology, Shanghai University of Medicine & Health Sciences, Shanghai, China
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Ji X, Che N, lin R, Chen J, Wu X. Efficient ten-gene analysis of NSCLC tissue samples by next-generation sequencing. Pathol Res Pract 2019; 215:1066-1070. [DOI: 10.1016/j.prp.2019.02.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/04/2019] [Accepted: 02/26/2019] [Indexed: 12/29/2022]
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17
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Lin C, Shi X, Yang S, Zhao J, He Q, Jin Y, Yu X. Comparison of ALK detection by FISH, IHC and NGS to predict benefit from crizotinib in advanced non-small-cell lung cancer. Lung Cancer 2019; 131:62-68. [PMID: 31027700 DOI: 10.1016/j.lungcan.2019.03.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 10/28/2018] [Accepted: 03/19/2019] [Indexed: 01/06/2023]
Abstract
PURPOSE Anaplastic lymphoma kinase (ALK) is now a validated kinase target in non-small cell lung cancer (NSCLC). We implemented three ALK laboratory methodologies: fluorescence in situ hybridization (FISH), immunohistochemistry (IHC) and next-generation sequencing (NGS) to detect EML4-ALK fusions and compared the predictive value for Crizotinib efficacy in ALK-positive patients. METHODS 55 ALK positive patients confirmed by at least one method were enrolled in the present study, of whom 45 cases were assessed by FISH, IHC and NGS concurrently, and another 10 cases only received IHC and NGS assessment for ALK status. RESULTS IHC presented the uppermost positive rate (94.5%), followed by NGS (92.7%) and FISH(82.4%), among which IHC and NGS had the highest concordance rate of 87.3%. No difference was detected in ORR, DCR and PFS of ALK positive cases defined in three groups. Notably, NGS positive patients were correlated with a higher DCR and longer PFS compared to NGS negative cases (P = 0.02 and P = 0.09), while FISH and IHC status were not distinguishing in predicting the outcome of Crizotinib. TP53 concurrent mutation might reduce responsiveness to Crizotinib and worsen prognosis in ALK-rearranged NSCLC. CONCLUSION FISH present a certain false-negative rate although considered the gold standard. Ventana-D5F3 IHC is qualified as a screening tool, while NGS positive may predict clinical benefit of Crizotinib more accurately, allowing efficient test for specific variants and concurrent genomic alterations.
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Affiliation(s)
- Chen Lin
- Department of Medical Oncology, Zhejiang Cancer Hospital, China
| | - Xun Shi
- Department of Medical Oncology, Zhejiang Cancer Hospital, China
| | - Shao Yang
- Nanjing Geneseeq Technology Inc., Nangjing, China
| | - Jun Zhao
- Department of Medical Oncology, Zhejiang Cancer Hospital, China
| | - Qiong He
- Department of Medical Oncology, Zhejiang Cancer Hospital, China
| | - Ying Jin
- Department of Medical Oncology, Zhejiang Cancer Hospital, China; Zhejiang Key Laboratory of Radiation Oncology, China.
| | - Xinmin Yu
- Department of Medical Oncology, Zhejiang Cancer Hospital, China; Zhejiang Key Laboratory of Diagnosis and Treatment Technology of Thoracic Oncology, China.
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Ren H, Hou X, Eiken PW, Zhang J, Pierson KE, Nair AA, Davila JI, Kovarikova H, Jang JS, Johnson SH, Molina JR, Marks RS, Yang P, Yi JE, Mansfield AS, Jen J. Identification and Development of a Lung Adenocarcinoma PDX Model With STRN-ALK Fusion. Clin Lung Cancer 2019; 20:e142-e147. [PMID: 30581091 DOI: 10.1016/j.cllc.2018.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/29/2018] [Accepted: 11/12/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Hongzheng Ren
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; Biomarker Discovery Program, Mayo Clinic, Rochester, MN; Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Xiaonan Hou
- Department of Medical Oncology, Mayo Clinic, Rochester, MN
| | | | - Jin Zhang
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | | | - Asha A Nair
- Department of Health Science Research, Mayo Clinic, Rochester, MN
| | - Jaime I Davila
- Department of Health Science Research, Mayo Clinic, Rochester, MN
| | - Helena Kovarikova
- Institute of Clinical Biochemistry and Diagnostics, Charles University, Faculty of Medicine, Hradec Kralove, Czech Republic; Institute of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jin Sung Jang
- The Genome Analysis Core, Center for Individualized Medicine, Mayo Clinic, Rochester, MN
| | | | | | | | - Ping Yang
- Department of Health Science Research, Mayo Clinic, Rochester, MN
| | - Joanne E Yi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | - Jin Jen
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; Biomarker Discovery Program, Mayo Clinic, Rochester, MN; The Genome Analysis Core, Center for Individualized Medicine, Mayo Clinic, Rochester, MN.
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19
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Wang H, Sun L, Sang Y, Yang X, Tian G, Wang Z, Fang J, Sun W, Zhou L, Jia L, Tsao MS, Shi H, Lin D. A study of ALK-positive pulmonary squamous-cell carcinoma: From diagnostic methodologies to clinical efficacy. Lung Cancer 2019; 130:135-142. [PMID: 30885334 DOI: 10.1016/j.lungcan.2019.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/03/2019] [Accepted: 02/16/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND High concordance has been observed between Ventana D5F3 ALK immunohistochemistry (IHC) and fluorescence in-situ hybridization (FISH) in lung adenocarcinoma (LADC). However, whether a similar conclusion can be applied to lung squamous-cell carcinoma (LSCC) has remained unclear. We therefore evaluated the ALK (anaplastic lymphoma kinase) status and the therapeutic effect of an ALK tyrosine kinase inhibitor (TKI) in IHC- or FISH-positive LSCC. MATERIALS AND METHODS A total of 2403 LSCC patients from three institutions were screened for ALK aberration by IHC. All IHC-positive cases were subjected to FISH (with an approximately equal number of negative cases as a control group) and next-generation sequencing (NGS). Clinical efficacy was evaluated for the patients who received TKI therapy. RESULTS In 2403 cases of LSCC, 37 cases were identified as ALK-positive by IHC. After quality control, 28 cases were succeeded by FISH (six with insufficient tissue, three with lack of signals) and 13 by NGS (24 failed due to insufficient samples or poor DNA quality); the percentage of non-diagnostic tests was 24.3% (9/37) and 64.9% (24/37), respectively. Four cases (4/2394, 0.17%) analyzed by FISH were determined as ALK-positive. For the control group (40 ALK IHC), FISH demonstrated no samples with ALK gene fusion. The concordance between ALK IHC- and ALK FISH-positive results was 14.3% (4/28). In the 13 cases studied by NGS, two cases showed ALK-EML4 fusion (consistent with two FISH-positive results), and two cases were interpreted as harboring an ALK-association gene mutation. Among four patients (two FISH-positive and two IHC-positive only cases) receiving TKI therapy, two patients had stable disease and the other two had progressive disease. CONCLUSIONS The positive concordance rate of ALK IHC and FISH in LSCC is far less than that reported for LADC. Therefore, ALK IHC detection in LSCC cannot be used as a diagnostic method for ALK rearrangement.
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Affiliation(s)
- Haiyue Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Leina Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Yaxiong Sang
- Oncology Business Division, Beijing Novogene Bioinformatics Technology Co., Ltd, Beijing, People's Republic of China
| | - Xin Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Guangming Tian
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic OncologyⅡ, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Ziping Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic OncologyⅠ, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Jian Fang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic OncologyⅡ, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Wei Sun
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Lixin Zhou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Ling Jia
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Ming-Sound Tsao
- University Health Network/Princess Margaret Cancer Centre and University of Toronto, Toronto, Canada
| | - Huaiyin Shi
- Pathology Department, Chinese PLA General Hospital and Chinese PLA Medical School, Beijing, People's Republic of China.
| | - Dongmei Lin
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China.
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Herbreteau G, Vallée A, Charpentier S, Normanno N, Hofman P, Denis MG. Circulating free tumor DNA in non-small cell lung cancer (NSCLC): clinical application and future perspectives. J Thorac Dis 2019; 11:S113-S126. [PMID: 30775034 DOI: 10.21037/jtd.2018.12.18] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Major advances in the treatment of non-small cell lung cancer (NSCLC) patients have been obtained during the last decade. Molecular testing of tumor samples is therefore mandatory in routine clinical practice. Tumor DNA is also present as cell-free molecules in blood, which is therefore a very useful and convenient source of tumor DNA. In this review, we discuss pre-analytical and analytical aspects of circulating tumor DNA (ctDNA) analysis. We also describe the use of ctDNA analysis in routine clinical practice, and discuss the potential use of ctDNA monitoring both to identify minimal residual disease and as a potential tool to early identify patients' response to treatment.
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Affiliation(s)
- Guillaume Herbreteau
- Department of Biochemistry, Nantes University Hospital, 9 quai Moncousu, F-44093 Nantes Cedex, France
| | - Audrey Vallée
- Department of Biochemistry, Nantes University Hospital, 9 quai Moncousu, F-44093 Nantes Cedex, France
| | - Sandrine Charpentier
- Department of Biochemistry, Nantes University Hospital, 9 quai Moncousu, F-44093 Nantes Cedex, France
| | - Nicola Normanno
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori, IRCCS, "Fondazione G. Pascale", Naples, Italy
| | - Paul Hofman
- Laboratory of Clinical and Experimental Pathology, Inserm U1081/CNRS 7284, Université Côte d'Azur, CHU Nice and FHU OncoAge, and Hospital-Integrated Biobank (BB-0033-00025), Pasteur Hospital, Nice, France
| | - Marc G Denis
- Department of Biochemistry, Nantes University Hospital, 9 quai Moncousu, F-44093 Nantes Cedex, France
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Abstract
INTRODUCTION Anaplastic lymphoma kinase (ALK) is one of the most attractive molecular targets for the treatment of patients with non-small-cell lung cancer. Treatment with ALK inhibitors is recognized as the standard-of-care for patients with ALK gene rearrangements, but it is important to appropriately select patients who will benefit from such treatment. Areas covered: In this article, we review the evidence regarding ALK testing. Immunohistochemistry (IHC), fluorescence in situ hybridization (FISH), and reverse transcription polymerase chain reaction (RT-PCR) are the representative methods for detecting ALK gene fusions. Among these diagnostic modalities, IHC in particular exhibits high sensitivity and specificity for the detection of ALK fusions when appropriately applied and interpreted. Expert commentary: Discrepancies have been reported between the results of IHC and FISH. However, it was revealed that patients with IHC-positivity and FISH-negativity may respond to alectinib, indicating that IHC can be used as a stand-alone method from a clinical standpoint for the identification of patients eligible for treatment with ALK inhibitors. In addition, differences between ALK variants have been reported to affect the prognosis and efficacy of ALK inhibitor-based treatments, and RT-PCR will likely increase in importance as a complementary tool.
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Affiliation(s)
- Yuka Kozuma
- a Department of Thoracic Oncology , National Kyushu Cancer Center , Fukuoka , Japan.,b Department of Surgery and Sciences, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Gouji Toyokawa
- b Department of Surgery and Sciences, Graduate School of Medical Sciences , Kyushu University , Fukuoka , Japan
| | - Takashi Seto
- a Department of Thoracic Oncology , National Kyushu Cancer Center , Fukuoka , Japan
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22
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Gu X, Xue J, Ai L, Sun L, Zhu X, Wang Y, Liu C. SND1 expression in breast cancer tumors is associated with poor prognosis. Ann N Y Acad Sci 2018; 1433:53-60. [PMID: 30216461 DOI: 10.1111/nyas.13970] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/16/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022]
Abstract
Staphylococcal nuclease domain-containing 1 (SND1) expression is crucial for breast cancer metastasis; however, the clinical implications of SND1 expression in breast cancer remain unclear. This study investigated the relationship of SND1 protein expression both with metastasis and the prognoses of 144 breast cancer patients over a 10-year follow-up. Chi-square tests revealed that the percentages of positive SND1 expression in breast cancer tumors were significantly associated with larger tumor size (>2 cm, P = 0.043), higher clinical TNM stage (P = 0.003), and positive lymph node metastasis (P = 0.001). Breast cancer patients with positive SND1 expression had a significantly shorter overall survival and disease-free survival than those with negative SND1 expression (P < 0.01). Multiple Cox regression analysis indicated that SND1 expression is an independent risk factor for shorter disease-free survival (hazard ratio = 1.97, P = 0.014). The percentages of SND1 expression in metastatic breast cancers were significantly higher than that in primary tumors in 30 patients with advanced breast cancer (P = 0.016). Therefore, SND1 protein expression is significantly associated with breast cancer metastasis and may serve as a biomarker for prognosis of breast cancer patients.
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Affiliation(s)
- Xi Gu
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jinqi Xue
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Liping Ai
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Lisha Sun
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xudong Zhu
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yulun Wang
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Caigang Liu
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Grocholski S, Banerji S, Qing G, Dawe DE. Benefit of crizotinib in a lung cancer patient with discordant ALK testing results. Cancer Treat Res Commun 2018; 15:13-16. [PMID: 30207282 DOI: 10.1016/j.ctarc.2018.02.002] [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: 04/23/2017] [Revised: 02/12/2018] [Accepted: 02/19/2018] [Indexed: 11/16/2022]
Abstract
Crizotinib is a first line treatment for patients with non-small cell lung cancer (NSCLC) harboring translocations in anaplastic lymphoma kinase (ALK). The current gold standard for determining ALK status is fluorescence in-situ hybridisation (FISH), but immunohistochemistry (IHC) is becoming increasingly popular due to lower cost. There are currently few reports on clinical outcomes with crizotinib therapy in patients who have tested negative by FISH and positive by IHC. A 53 year old lifelong non-smoking, physically active male with newly diagnosed Stage IV NSCLC presented with shortness of breath on exertion one month prior to referral. Staging CT scan failed to show a discreet lung lesion, but the left lower lobe was collapsed due to pleural effusion. Pleural fluid showed adenocarcinoma and IHC was positive for an ALK mutation, while FISH was negative. Pre-treatment PET-CT showed hypermetabolic, enlarged lymph nodes in the mediastinum and retroperitoneum. Partially due to patient concerns about cytotoxic chemotherapy toxicity, crizotinib therapy was instituted. Repeat CT conducted two months after crizotinib initiation showed a decrease in lymphadenopathy at all sites compared to the PET-CT. Furthermore, the patient showed clinical improvement, with less drainage through his PleurX catheter and stability of his excellent performance status. After 12 months on crizotinib CT showed ongoing improvement in lymphadenopathy. His bloodwork has been stable, and he denies significant drug toxicity. This case illustrates a sustained response to crizotinib therapy in a patient with an ALK translocation identified by IHC, but with negative FISH testing. The literature suggests that the population with these discordant results could be up to 19% of ALK positive NSCLC. Patients in this subgroup who are receiving crizotinib should be identified and outcome data pooled. However, in the interim, oncologists may wish to consider targeted therapy for these discordant patients.
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Affiliation(s)
- Steven Grocholski
- Rady Faculty of Health Sciences, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Shantanu Banerji
- Rady Faculty of Health Sciences, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada; Cancer Care Manitoba, Department of Hematology and Medical Oncology, Winnipeg, MB, Canada
| | - Gefei Qing
- Rady Faculty of Health Sciences, Department of Pathology, University of Manitoba, Winnipeg, MB, Canada
| | - David E Dawe
- Rady Faculty of Health Sciences, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada; Cancer Care Manitoba, Department of Hematology and Medical Oncology, Winnipeg, MB, Canada.
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24
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Velizheva NP, Rechsteiner MP, Valtcheva N, Freiberger SN, Wong CE, Vrugt B, Zhong Q, Wagner U, Moch H, Hillinger S, Schmitt-Opitz I, Soltermann A, Wild PJ, Tischler V. Targeted next-generation-sequencing for reliable detection of targetable rearrangements in lung adenocarcinoma-a single center retrospective study. Pathol Res Pract 2018; 214:572-578. [PMID: 29580750 PMCID: PMC5899763 DOI: 10.1016/j.prp.2018.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 11/05/2022]
Abstract
Oncogenic rearrangements leading to targetable gene fusions are well-established cancer driver events in lung adenocarcinoma. Accurate and reliable detection of these gene fusions is crucial to select the appropriate targeted therapy for each patient. We compared the targeted next-generation-sequencing Oncomine Focus Assay (OFA; Thermo Fisher Scientific) with conventional ALK FISH and anti-Alk immunohistochemistry in a cohort of 52 lung adenocarcinomas (10 ALK rearranged, 18 non-ALK rearranged, and 24 untested cases). We found a sensitivity and specificity of 100% for detection of ALK rearrangements using the OFA panel. In addition, targeted next generation sequencing allowed us to analyze a set of 23 driver genes in a single assay. Besides EML4-ALK (11/52 cases), we detected EZR-ROS1 (1/52 cases), KIF5B-RET (1/52 cases) and MET-MET (4/52 cases) fusions. All EML4-ALK, EZR-ROS1 and KIF5B-RET fusions were confirmed by multiplexed targeted next generation sequencing assay (Oncomine Solid Tumor Fusion Transcript Kit, Thermo Fisher Scientific). All cases with EML4-ALK rearrangement were confirmed by Alk immunohistochemistry and all but one by ALK FISH. In our experience, targeted next-generation sequencing is a reliable and timesaving tool for multiplexed detection of targetable rearrangements. Therefore, targeted next-generation sequencing represents an efficient alternative to time-consuming single target assays currently used in molecular pathology.
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Affiliation(s)
- Nadezda P Velizheva
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Markus P Rechsteiner
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Nadejda Valtcheva
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Sandra N Freiberger
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Christine E Wong
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Bart Vrugt
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Qing Zhong
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Ulrich Wagner
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Holger Moch
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Sven Hillinger
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | | | - Alex Soltermann
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Peter J Wild
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland; Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Verena Tischler
- Institute of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland.
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25
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Vlajnic T, Savic S, Barascud A, Baschiera B, Bihl M, Grilli B, Herzog M, Rebetez J, Bubendorf L. Detection of ROS1-positive non-small cell lung cancer on cytological specimens using immunocytochemistry. Cancer Cytopathol 2018; 126:421-429. [DOI: 10.1002/cncy.21983] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Tatjana Vlajnic
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Spasenija Savic
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Audrey Barascud
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Betty Baschiera
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Michel Bihl
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Bruno Grilli
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Michelle Herzog
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Julien Rebetez
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - Lukas Bubendorf
- Institute of Pathology; University Hospital Basel; Basel Switzerland
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26
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Alì G, Bruno R, Savino M, Giannini R, Pelliccioni S, Menghi M, Boldrini L, Proietti A, Chella A, Ribechini A, Fontanini G. Analysis of Fusion Genes by NanoString System: A Role in Lung Cytology? Arch Pathol Lab Med 2018; 142:480-489. [PMID: 29372843 DOI: 10.5858/arpa.2017-0135-ra] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - Patients with non-small cell lung cancer harboring ALK receptor tyrosine kinase ( ALK), ROS proto-oncogene 1 ( ROS1), and ret proto-oncogene ( RET) gene rearrangements can benefit from specific kinase inhibitors. Detection of fusion genes is critical for determining the best treatment. Assessing rearrangements in non-small cell lung cancer remains challenging, particularly for lung cytology. OBJECTIVE - To examine the possible application of the multiplex, transcript-based NanoString system (NanoString Technologies, Seattle, Washington) in the evaluation of fusion genes in lung adenocarcinoma samples. DATA SOURCES - This study is a narrative literature review. Studies about NanoString, gene fusions, and lung adenocarcinoma were collected from PubMed (National Center for Biotechnology Information, Bethesda, Maryland). We found 7 articles about the application of the NanoString system to detect fusion genes on formalin-fixed, paraffin-embedded tumor tissues and one article evaluating the adequacy of lung cytologic specimens for NanoString gene expression analysis. CONCLUSIONS - To maximize the yield of molecular tests on small lung biopsies, the NanoString nCounter system has been suggested to detect fusion genes. NanoString fusion gene assays have been successfully applied on formalin-fixed, paraffin-embedded tissues. Although there are only a few studies available, the application of NanoString assays may also be feasible in lung cytology. According to available data, the NanoString system could strengthen the routine molecular characterization of lung adenocarcinoma.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Gabriella Fontanini
- From the Unit of Pathological Anatomy (Drs Alì and Proietti and Ms Pelliccioni) and Pneumology (Dr Chella), the Endoscopic Section of Pneumology (Dr Ribechini), and the Program of Pleuropulmonary Pathology (Dr Fontanini), Azienda Ospedaliero Universitaria Pisana, Pisa, Italy; the Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy (Drs Bruno, Giannini, and Boldrini); and Diatech Pharmacogenetics srl, Jesi, Italy (Drs Savino and Menghi)
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27
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Christopoulos P, Endris V, Bozorgmehr F, Elsayed M, Kirchner M, Ristau J, Buchhalter I, Penzel R, Herth FJ, Heussel CP, Eichhorn M, Muley T, Meister M, Fischer JR, Rieken S, Warth A, Bischoff H, Schirmacher P, Stenzinger A, Thomas M. EML4-ALK fusion variant V3 is a high-risk feature conferring accelerated metastatic spread, early treatment failure and worse overall survival in ALK + non-small cell lung cancer. Int J Cancer 2018; 142:2589-2598. [PMID: 29363116 DOI: 10.1002/ijc.31275] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/17/2017] [Accepted: 01/10/2018] [Indexed: 02/04/2023]
Abstract
In order to identify anaplastic lymphoma kinase-driven non-small cell lung cancer (ALK+ NSCLC) patients with a worse outcome, who might require alternative therapeutic approaches, we retrospectively analyzed all stage IV cases treated at our institutions with one of the main echinoderm microtubule-associated protein-like 4 (EML4)-ALK fusion variants V1, V2 and V3 as detected by next-generation sequencing or reverse transcription-polymerase chain reaction (n = 67). Progression under tyrosine kinase inhibitor (TKI) treatment was evaluated both according to Response Evaluation Criteria in Solid Tumors (RECIST) and by the need to change systemic therapy. EML4-ALK fusion variants V1, V2 and V3 were found in 39%, 10% and 51% of cases, respectively. Patients with V3-driven tumors had more metastatic sites at diagnosis than cases with the V1 and V2 variants (mean 3.3 vs. 1.9 and 1.6, p = 0.005), which suggests increased disease aggressiveness. Furthermore, V3-positive status was associated with earlier failure after treatment with first and second-generation ALK TKI (median progression-free survival [PFS] by RECIST in the first line 7.3 vs. 39.3 months, p = 0.01), platinum-based combination chemotherapy (median PFS 5.4 vs. 15.2 months for the first line, p = 0.008) and cerebral radiotherapy (median brain PFS 6.1 months vs. not reached for cerebral radiotherapy during first-line treatment, p = 0.028), and with inferior overall survival (39.8 vs. 59.6 months in median, p = 0.017). Thus, EML4-ALK fusion variant V3 is a high-risk feature for ALK+ NSCLC. Determination of V3 status should be considered as part of the initial workup for this entity in order to select patients for more aggressive surveillance and treatment strategies.
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Affiliation(s)
- Petros Christopoulos
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL)
| | - Volker Endris
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Farastuk Bozorgmehr
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL)
| | - Mei Elsayed
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL)
| | - Martina Kirchner
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jonas Ristau
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Ivo Buchhalter
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Roland Penzel
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Felix J Herth
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Department of Pneumology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Claus P Heussel
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Department of diagnostic and interventional Radiology with Nuclear Medicine, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Martin Eichhorn
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Department of Surgery, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Muley
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Michael Meister
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Jürgen R Fischer
- Department of Thoracic Oncology, Lungenklinik Löwenstein, Löwenstein, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Arne Warth
- Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL).,Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Helge Bischoff
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - Peter Schirmacher
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Michael Thomas
- Department of Thoracic Oncology, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Heidelberg, Germany, member of the German Center for Lung Research (DZL)
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28
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Johnson SH, Smadbeck JB, Smoley SA, Gaitatzes A, Murphy SJ, Harris FR, Drucker TM, Zenka RM, Pitel BA, Rowsey RA, Hoppman NL, Aypar U, Sukov WR, Jenkins RB, Feldman AL, Kearney HM, Vasmatzis G. SVAtools for junction detection of genome-wide chromosomal rearrangements by mate-pair sequencing (MPseq). Cancer Genet 2017; 221:1-18. [PMID: 29405991 DOI: 10.1016/j.cancergen.2017.11.009] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 10/12/2017] [Accepted: 11/27/2017] [Indexed: 01/04/2023]
Abstract
Mate-pair sequencing (MPseq), using long-insert, paired-end genomic libraries, is a powerful next-generation sequencing-based approach for the detection of genomic structural variants. SVAtools is a set of algorithms to detect both chromosomal rearrangements and large (>10 kb) copy number variants (CNVs) in genome-wide MPseq data. SVAtools can also predict gene disruptions and gene fusions, and characterize the genomic structure of complex rearrangements. To illustrate the power of SVAtools' junction detection methods to provide comprehensive molecular karyotypes, MPseq data were compared against a set of samples previously characterized by traditional cytogenetic methods. Karyotype, FISH and chromosomal microarray (CMA), performed for 29 patients in a clinical laboratory setting, collectively revealed 285 breakpoints in 87 rearrangements. The junction detection methods of SVAtools detected 87% of these breakpoints compared to 48%, 42% and 57% for karyotype, FISH and CMA respectively. Breakpoint resolution was also reported to 1 kb or less and additional genomic rearrangement complexities not appreciable by standard cytogenetic techniques were revealed. For example, 63% of CNVs detected by CMA were shown by SVAtools' junction detection to occur secondary to a rearrangement other than a simple deletion or tandem duplication. SVAtools with MPseq provides comprehensive and accurate whole-genome junction detection with improved breakpoint resolution, compared to karyotype, FISH, and CMA combined. This approach to molecular karyotyping offers considerable diagnostic potential for the simultaneous detection of both novel and recurrent genomic rearrangements in hereditary and neoplastic disorders.
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Affiliation(s)
- Sarah H Johnson
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester MN, USA
| | - James B Smadbeck
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester MN, USA
| | - Stephanie A Smoley
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Stephen J Murphy
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester MN, USA
| | - Faye R Harris
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester MN, USA
| | | | - Roman M Zenka
- Bioinformatics Systems, Mayo Clinic Rochester, MN, USA
| | - Beth A Pitel
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Ross A Rowsey
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Nicole L Hoppman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Umut Aypar
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - William R Sukov
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Robert B Jenkins
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Andrew L Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Hutton M Kearney
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - George Vasmatzis
- Center for Individualized Medicine-Biomarker Discovery, Mayo Clinic, Rochester MN, USA; Department of Molecular Medicine, Mayo Clinic, Rochester MN, USA.
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29
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Pisapia P, Lozano MD, Vigliar E, Bellevicine C, Pepe F, Malapelle U, Troncone G. ALK and ROS1 testing on lung cancer cytologic samples: Perspectives. Cancer Cytopathol 2017; 125:817-830. [DOI: 10.1002/cncy.21899] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Pasquale Pisapia
- Department of Public Health; University of Naples Federico II; Naples Italy
| | - Maria D. Lozano
- Department of Pathology; University Clinic of Navarra; Pamplona Spain
| | - Elena Vigliar
- Department of Public Health; University of Naples Federico II; Naples Italy
| | | | - Francesco Pepe
- Department of Public Health; University of Naples Federico II; Naples Italy
| | - Umberto Malapelle
- Department of Public Health; University of Naples Federico II; Naples Italy
| | - Giancarlo Troncone
- Department of Public Health; University of Naples Federico II; Naples Italy
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30
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Peng R, Zhang R, Lin G, Yang X, Li Z, Zhang K, Zhang J, Li J. CRISPR/Cas9 Technology-Based Xenograft Tumors as Candidate Reference Materials for Multiple EML4-ALK Rearrangements Testing. J Mol Diagn 2017; 19:766-775. [PMID: 28732214 DOI: 10.1016/j.jmoldx.2017.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/27/2017] [Accepted: 06/01/2017] [Indexed: 12/17/2022] Open
Abstract
The echinoderm microtubule-associated protein-like 4 and anaplastic lymphoma kinase (ALK) receptor tyrosine kinase (EML4-ALK) rearrangement is an important biomarker that plays a pivotal role in therapeutic decision making for non-small-cell lung cancer (NSCLC) patients. Ensuring accuracy and reproducibility of EML4-ALK testing by fluorescence in situ hybridization, immunohistochemistry, RT-PCR, and next-generation sequencing requires reliable reference materials for monitoring assay sensitivity and specificity. Herein, we developed novel reference materials for various kinds of EML4-ALK testing. CRISPR/Cas9 was used to edit various NSCLC cell lines containing EML4-ALK rearrangement variants 1, 2, and 3a/b. After s.c. inoculation, the formalin-fixed, paraffin-embedded (FFPE) samples from xenografts were prepared and tested for suitability as candidate reference materials by fluorescence in situ hybridization, immunohistochemistry, RT-PCR, and next-generation sequencing. Sample validation and commutability assessments showed that all types of FFPE samples derived from xenograft tumors have typical histological structures, and EML4-ALK testing results were similar to the clinical ALK-positive NSCLC specimens. Among the four methods for EML4-ALK detection, the validation test showed 100% concordance. Furthermore, these novel FFPE reference materials showed good stability and homogeneity. Without limitations on variant types and production, our novel FFPE samples based on CRISPR/Cas9 editing and xenografts are suitable as candidate reference materials for the validation, verification, internal quality control, and proficiency testing of EML4-ALK detection.
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Affiliation(s)
- Rongxue Peng
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Rui Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Guigao Lin
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Xin Yang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Ziyang Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Kuo Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Jiawei Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Jinming Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China.
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31
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Dugay F, Llamas-Gutierrez F, Gournay M, Medane S, Mazet F, Chiforeanu DC, Becker E, Lamy R, Léna H, Rioux-Leclercq N, Belaud-Rotureau MA, Cabillic F. Clinicopathological characteristics of ROS1- and RET-rearranged NSCLC in caucasian patients: Data from a cohort of 713 non-squamous NSCLC lacking KRAS/EGFR/HER2/BRAF/PIK3CA/ALK alterations. Oncotarget 2017; 8:53336-53351. [PMID: 28881815 PMCID: PMC5581114 DOI: 10.18632/oncotarget.18408] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 05/13/2017] [Indexed: 01/16/2023] Open
Abstract
Targeted therapies have substantially changed the management of non-small cell lung cancer (NSCLC) patients with driver oncogenes. Given the high frequency, EGFR and ALK aberrations were the first to be detected and paved the way for tyrosine kinase inhibitor (TKI) treatments. Other kinases such as ROS1 and more recently RET have emerged as promising targets, and ROS1 and RET TKIs are already available for precision medicine. We screened a large cohort of 713 Caucasian non-squamous NSCLC patients lacking EGFR/KRAS/BRAF/HER2/PI3KCA/ALK aberrations for ROS1 and RET rearrangements using fluorescence in situ hybridization to determine the frequency and clinicopathological characteristics of ROS1- and RET-positive patients. Frequencies of ROS1 and RET rearrangements were 2.1% and 2.52%, respectively. Contrary to common belief, both ROS1 and RET rearrangements were detected in patients with a history of smoking, and the RET-positive patients were not younger than the negative patients. Moreover, RET but not ROS1 rearrangement was associated with the female gender. Nearly half of the ROS1-rearranged patients were successfully treated with ROS1 TKIs. In contrast, only 5/18 RET-positive patients received off-label RET TKIs. Two patients had stable disease, and three experienced disease progression. In addition to the 18 RET-positive cases, 10 showed isolated 5' signals. The clinical relevance is unknown but if the frequency is confirmed by other groups, the question whether these patients are eligible to TKIs will arise. More potent RET TKIs are under development and may improve the response rate in RET-positive patients. Therefore, we recommend the routine implementation of RET testing in non-squamous NSCLC patients, including those with a history of smoking.
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Affiliation(s)
- Frédéric Dugay
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France.,IRSET UMR INSERM 1085, Faculté de Médecine, Université de Rennes 1, Rennes, France
| | | | - Marjory Gournay
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - Sarah Medane
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | - François Mazet
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France
| | | | - Emmanuelle Becker
- IRSET UMR INSERM 1085, Faculté de Médecine, Université de Rennes 1, Rennes, France
| | - Régine Lamy
- Department of Pneumology, CHU de Lorient, Lorient, France
| | - Hervé Léna
- Department of Pneumology, CHU de Rennes, Rennes, France
| | - Nathalie Rioux-Leclercq
- IRSET UMR INSERM 1085, Faculté de Médecine, Université de Rennes 1, Rennes, France.,Department of Pathology, CHU de Rennes, Rennes, France
| | - Marc-Antoine Belaud-Rotureau
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France.,IRSET UMR INSERM 1085, Faculté de Médecine, Université de Rennes 1, Rennes, France
| | - Florian Cabillic
- Department of Cytogenetics and Cell Biology, CHU de Rennes, Rennes, France.,INSERM, INRA, Université de Rennes 1, Université Bretagne Loire, Nutrition Metabolisms and Cancer, Rennes, France
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32
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Trejo Bittar HE, Luvison A, Miller C, Dacic S. A comparison of ALK gene rearrangement and ALK protein expression in primary lung carcinoma and matched metastasis. Histopathology 2017; 71:269-277. [PMID: 28316074 DOI: 10.1111/his.13215] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/15/2017] [Indexed: 11/28/2022]
Abstract
AIMS The 2013 College of American Pathologists, the Association for Molecular Pathology and the International Association for the Study of Lung Cancer guideline for EGFR and ALK testing in lung carcinoma indicates that either the primary tumour or the metastasis is suitable for testing. The heterogeneity of gene mutations has been studied extensively, while similar reports on gene rearrangements are limited. The aim of this study was to determine if ALK status between primary tumour and matched metastasis differs. METHODS AND RESULTS Fifteen ALK fluorescence in-situ hybridization (FISH) rearranged and 19 non-ALK FISH rearranged adenocarcinomas were collected retrospectively based on availability of tissue from a matched metastatic site. Sixty-eight samples were tested by ALK FISH (Vysis ALK break-apart FISH kit) and ALK immunohistochemistry (IHC) (Ventana ALK D5F3 CDx assay). Overall agreement of FISH and IHC was 88%, with IHC showing 100% specificity and 71% sensitivity. Concordance between primary site and metastasis by ALK FISH was seen in 30 cases (88%), and in 32 cases (94%) by ALK IHC. Five discordant cases were found (15%). Three ALK FISH discordant cases had low percentage of ALK FISH-positive tumour cells (average 23%, range: 18-31%) and all were negative by ALK IHC. One IHC discordant case had a high percentage of ALK FISH-positive tumour cells (67%), and was ALK IHC-negative. One FISH discordant case showed ALK FISH- and ALK IHC-positive primary tumour, but ALK FISH- and ALK IHC-negative metastasis. CONCLUSIONS ALK FISH results show more frequent discordances between primary tumour and matched metastases than ALK IHC, due probably to technical challenges and sample quality. This observation indicates that the quality of sample and technical expertise of the laboratory should guide the decision about ALK testing in clinical practice.
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Affiliation(s)
| | - Alyssa Luvison
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Caitlyn Miller
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Sanja Dacic
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Palmirotta R, Quaresmini D, Lovero D, Silvestris F. ALK gene alterations in cancer: biological aspects and therapeutic implications. Pharmacogenomics 2017; 18:277-292. [PMID: 28112990 DOI: 10.2217/pgs-2016-0166] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
ALK was first reported in 1994 as a translocation in anaplastic large cell lymphoma and then described with different abnormalities in a number of tumors. Recently, a shortly accumulated biomedical research clarified the numerous biological processes underlying its ability to support cancer development, growth and progression. Advent of precision medicine has finally provided unexpected advances, leading to the development of ALK-targeting inhibitors with superior efficacy as compared with standard chemotherapy regimens, as well as the identification of resistance mechanisms and the creation of ‘next-generation’ treatments. This review summarizes the current understanding of ALK-driven cancers from the oncogenesis and mutation frequency by The Cancer Genome Atlas database through the diagnostic approach, to an updated portrait of available tyrosine kinase inhibitors, considering their effectiveness in cancer treatment, the molecular reasons of therapeutic failure, and the actual and future ways to overcome resistances.
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Affiliation(s)
- Raffaele Palmirotta
- Department of Biomedical Sciences & Human Oncology, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Davide Quaresmini
- Department of Biomedical Sciences & Human Oncology, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Domenica Lovero
- Department of Biomedical Sciences & Human Oncology, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Franco Silvestris
- Department of Biomedical Sciences & Human Oncology, University of Bari ‘Aldo Moro’, Bari, Italy
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Hiley CT, Le Quesne J, Santis G, Sharpe R, de Castro DG, Middleton G, Swanton C. Challenges in molecular testing in non-small-cell lung cancer patients with advanced disease. Lancet 2016; 388:1002-11. [PMID: 27598680 DOI: 10.1016/s0140-6736(16)31340-x] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/15/2016] [Accepted: 07/25/2016] [Indexed: 12/18/2022]
Abstract
Lung cancer diagnostics have progressed greatly in the previous decade. Development of molecular testing to identify an increasing number of potentially clinically actionable genetic variants, using smaller samples obtained via minimally invasive techniques, is a huge challenge. Tumour heterogeneity and cancer evolution in response to therapy means that repeat biopsies or circulating biomarkers are likely to be increasingly useful to adapt treatment as resistance develops. We highlight some of the current challenges faced in clinical practice for molecular testing of EGFR, ALK, and new biomarkers such as PDL1. Implementation of next generation sequencing platforms for molecular diagnostics in non-small-cell lung cancer is increasingly common, allowing testing of multiple genetic variants from a single sample. The use of next generation sequencing to recruit for molecularly stratified clinical trials is discussed in the context of the UK Stratified Medicine Programme and The UK National Lung Matrix Trial.
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Affiliation(s)
- Crispin T Hiley
- Translational Cancer Therapeutics Laboratory, The Francis Crick Institute, London, UK; Division of Cancer Studies, King's College London, London, UK
| | - John Le Quesne
- Department of Cancer Studies, University of Leicester, Leicester, UK
| | - George Santis
- Department of Respiratory Medicine and Allergy, King's College London, UK
| | | | - David Gonzalez de Castro
- Centre for Molecular Pathology, Royal Marsden Hospital, Sutton, UK; School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast, UK
| | - Gary Middleton
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK; University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Charles Swanton
- Translational Cancer Therapeutics Laboratory, The Francis Crick Institute, London, UK; CRUK Lung Cancer Centre of Excellence, UCL Cancer Institute, London, UK.
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