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Mlakar V, Dupanloup I, Gonzales F, Papangelopoulou D, Ansari M, Gumy-Pause F. 17q Gain in Neuroblastoma: A Review of Clinical and Biological Implications. Cancers (Basel) 2024; 16:338. [PMID: 38254827 PMCID: PMC10814316 DOI: 10.3390/cancers16020338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Neuroblastoma (NB) is the most frequent extracranial solid childhood tumor. Despite advances in the understanding and treatment of this disease, the prognosis in cases of high-risk NB is still poor. 17q gain has been shown to be the most frequent genomic alteration in NB. However, the significance of this remains unclear because of its high frequency and association with other genetic modifications, particularly segmental chromosomal aberrations, 1p and 11q deletions, and MYCN amplification, all of which are also associated with a poor clinical prognosis. This work reviewed the evidence on the clinical and biological significance of 17q gain. It strongly supports the significance of 17q gain in the development of NB and its importance as a clinically relevant marker. However, it is crucial to distinguish between whole and partial chromosome 17q gains. The most important breakpoints appear to be at 17q12 and 17q21. The former distinguishes between whole and partial chromosome 17q gain; the latter is a site of IGF2BP1 and NME1 genes that appear to be the main oncogenes responsible for the functional effects of 17q gain.
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Affiliation(s)
- Vid Mlakar
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
| | - Isabelle Dupanloup
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
- Swiss Institute of Bioinformatics, Amphipôle, Quartier UNIL-Sorge, 1015 Lausanne, Switzerland
| | - Fanny Gonzales
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
- Division of Pediatric Oncology and Hematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Rue Willy-Donzé 6, 1205 Geneva, Switzerland
| | - Danai Papangelopoulou
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
- Division of Pediatric Oncology and Hematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Rue Willy-Donzé 6, 1205 Geneva, Switzerland
| | - Marc Ansari
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
- Division of Pediatric Oncology and Hematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Rue Willy-Donzé 6, 1205 Geneva, Switzerland
| | - Fabienne Gumy-Pause
- Cansearch Research Platform for Pediatric Oncology and Hematology, Faculty of Medicine, Department of Pediatrics, Gynecology and Obstetrics, University of Geneva, Rue Michel Servet 1, 1211 Geneva, Switzerland; (I.D.); (F.G.); (D.P.); (M.A.); (F.G.-P.)
- Division of Pediatric Oncology and Hematology, Department of Women, Child and Adolescent, University Geneva Hospitals, Rue Willy-Donzé 6, 1205 Geneva, Switzerland
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2
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Zhang Y, Chen M, Huang D, Gu H, Yi Y, Meng X. Correlation between ARID1B gene mutation (p.A460, p.V215G) and prognosis of high-risk refractory neuroblastoma. Cell Biol Int 2023. [PMID: 36883912 DOI: 10.1002/cbin.12013] [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: 09/18/2022] [Revised: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 03/09/2023]
Abstract
In a few reports, ARID1B/A mutation was found in neuroblastoma. We analyzed the clinical characteristics, clinical efficacy, and prognosis of three children with high-risk refractory neuroblastoma (NB) with somatic ARID1B gene mutation. The whole exon sequencing results showed that there were involved in transcription, DNA synthesis, and repair of ARID1B gene mutations. All mutation sites were located in the promoter region of the exon: ARID1B (p.A460) mutation was found in cases 1 and 2, and ARID1B (p.V215G) mutation was found in cases 1 and 3. The nucleic acid site of ARID1B (p.A460) mutation was c.1379 (exon1) C > G, and the nucleic acid site of ARID1B (p.V215G) mutation was c.644 (exon1) T > G. The meningeal metastasis in case 1 turned negative after 4 cycles of intrathecal injection combined with chemotherapy. However, the child died of agranulocytosis combined with sepsis during the 5th cycle of chemotherapy. Case 2 achieved complete remission (CR). Case 3 achieved CR after chemotherapy, surgery, metaiodobenzylguanidine, and 3F-8 (Naxitamab) immunotherapy after the initial diagnosis. The mediastinum and lymph node metastasis occurred during the 6-month observation period after stopping treatment. He achieved very good partial remission after individualized chemotherapy and surgical treatment. ARID1B is a component protein of the SWI/SNF chromatin-remodeling complex that participates in the occurrence of a variety of tumors by regulating DNA repair and synthesis. ARID1B nucleic acid mutation (p.A460, p.V215G) in the promoter region of three children may contribute to the poor prognosis of NB children.
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Affiliation(s)
- Yi Zhang
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Moyi Chen
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Dongsheng Huang
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Huali Gu
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - You Yi
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xue Meng
- Department of Pediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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3
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Gomez RL, Ibragimova S, Ramachandran R, Philpott A, Ali FR. Tumoral heterogeneity in neuroblastoma. Biochim Biophys Acta Rev Cancer 2022; 1877:188805. [PMID: 36162542 DOI: 10.1016/j.bbcan.2022.188805] [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: 04/06/2022] [Revised: 08/28/2022] [Accepted: 09/17/2022] [Indexed: 10/31/2022]
Abstract
Neuroblastoma is a solid, neuroendocrine tumor with divergent clinical behavior ranging from asymptomatic to fatal. The diverse clinical presentations of neuroblastoma are directly linked to the high intra- and inter-tumoral heterogeneity it presents. This heterogeneity is strongly associated with therapeutic resistance and continuous relapses, often leading to fatal outcomes. The development of successful risk assessment and tailored treatment strategies lies in evaluating the extent of heterogeneity via the accurate genetic and epigenetic profiling of distinct cell subpopulations present in the tumor. Recent studies have focused on understanding the molecular mechanisms that drive tumoral heterogeneity in pursuing better therapeutic and diagnostic approaches. This review describes the cellular, genetic, and epigenetic aspects of neuroblastoma heterogeneity. In addition, we summarize the recent findings on three crucial factors that can lead to heterogeneity in solid tumors: the inherent diversity of the progenitor cells, the presence of cancer stem cells, and the influence of the tumor microenvironment.
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Affiliation(s)
- Roshna Lawrence Gomez
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Healthcare City, Dubai, United Arab Emirates
| | - Shakhzada Ibragimova
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Healthcare City, Dubai, United Arab Emirates
| | - Revathy Ramachandran
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Healthcare City, Dubai, United Arab Emirates
| | - Anna Philpott
- Department of Oncology, University of Cambridge, Cambridge, United Kingdom; Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Center, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | - Fahad R Ali
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Healthcare City, Dubai, United Arab Emirates.
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4
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Jiménez C, Antonelli R, Nadal-Ribelles M, Devis-Jauregui L, Latorre P, Solé C, Masanas M, Molero-Valenzuela A, Soriano A, Sánchez de Toledo J, Llobet-Navas D, Roma J, Posas F, de Nadal E, Gallego S, Moreno L, Segura MF. Structural disruption of BAF chromatin remodeller impairs neuroblastoma metastasis by reverting an invasiveness epigenomic program. Mol Cancer 2022; 21:175. [PMID: 36057593 PMCID: PMC9440539 DOI: 10.1186/s12943-022-01643-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/24/2022] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND Epigenetic programming during development is essential for determining cell lineages, and alterations in this programming contribute to the initiation of embryonal tumour development. In neuroblastoma, neural crest progenitors block their course of natural differentiation into sympathoadrenergic cells, leading to the development of aggressive and metastatic paediatric cancer. Research of the epigenetic regulators responsible for oncogenic epigenomic networks is crucial for developing new epigenetic-based therapies against these tumours. Mammalian switch/sucrose non-fermenting (mSWI/SNF) ATP-dependent chromatin remodelling complexes act genome-wide translating epigenetic signals into open chromatin states. The present study aimed to understand the contribution of mSWI/SNF to the oncogenic epigenomes of neuroblastoma and its potential as a therapeutic target. METHODS Functional characterisation of the mSWI/SNF complexes was performed in neuroblastoma cells using proteomic approaches, loss-of-function experiments, transcriptome and chromatin accessibility analyses, and in vitro and in vivo assays. RESULTS Neuroblastoma cells contain three main mSWI/SNF subtypes, but only BRG1-associated factor (BAF) complex disruption through silencing of its key structural subunits, ARID1A and ARID1B, impairs cell proliferation by promoting cell cycle blockade. Genome-wide chromatin remodelling and transcriptomic analyses revealed that BAF disruption results in the epigenetic repression of an extensive invasiveness-related expression program involving integrins, cadherins, and key mesenchymal regulators, thereby reducing adhesion to the extracellular matrix and the subsequent invasion in vitro and drastically inhibiting the initiation and growth of neuroblastoma metastasis in vivo. CONCLUSIONS We report a novel ATPase-independent role for the BAF complex in maintaining an epigenomic program that allows neuroblastoma invasiveness and metastasis, urging for the development of new BAF pharmacological structural disruptors for therapeutic exploitation in metastatic neuroblastoma.
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Affiliation(s)
- Carlos Jiménez
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Roberta Antonelli
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Mariona Nadal-Ribelles
- Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Laura Devis-Jauregui
- Molecular Mechanisms and Experimental Therapy in Oncology-Oncobell Program, Bellvitge Biomedical Research Institute, L'Hospitalet de Llobregat, Spain
| | - Pablo Latorre
- Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Carme Solé
- Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Marc Masanas
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Adrià Molero-Valenzuela
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Aroa Soriano
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Josep Sánchez de Toledo
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.,Catalan Institute of Oncology, L'Hospitalet de Llobregat, Spain
| | - David Llobet-Navas
- Molecular Mechanisms and Experimental Therapy in Oncology-Oncobell Program, Bellvitge Biomedical Research Institute, L'Hospitalet de Llobregat, Spain.,Low Prevalence Tumors. Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Josep Roma
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Francesc Posas
- Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Eulàlia de Nadal
- Institute for Research in Biomedicine, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Soledad Gallego
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.,Paediatric Oncology and Haematology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Lucas Moreno
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.,Paediatric Oncology and Haematology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Miguel F Segura
- Group of Childhood Cancer and Blood Disorders, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.
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5
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Varkhedi M, Barker VR, Eakins RA, Blanck G. CNV assessments associated with outcome distinctions for adult and pediatric cancers: Loss of BRCA1 in neuroblastoma associates with a lower survival probability. Gene 2022; 836:146673. [PMID: 35714795 DOI: 10.1016/j.gene.2022.146673] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022]
Abstract
DNA copy number variations (CNV) are common in cancer development, however, CNV detection approaches that include assessments of small CNVs, for example, due to locally misaligned sister chromatid exchanges, have not been substantially applied. Using such approaches, CNVs have been detected, in the cancer setting, for regulatory elements common to both proliferation and apoptosis effector genes, but no linkage has yet been made to cancer patient clinical data. Thus, we hypothesized that copy number losses, including local copy number losses, of specific apoptosis effector genes would be associated with reduced survival. Both whole genome and whole exome files were processed for validations and consistency. Results indicated lower late-stage survival for multiple myeloma cases representing reduced BAD and CASP3 copies, as well as for lung adenocarcinoma cases representing reduced BAX and CASP3 copies. Results also indicated that neuroblastoma (NBL) cases representing reduced copies of CASP9 and BRCA1 had reduced overall survival probabilities, with the BRCA1 results being particularly notable due to previous reports of BRCA1 inactivating mutations in NBL. Overall, novel approaches to assessing CNVs offers the promise of establishing patient risk stratifications and of identifying single genes or other small spaces in the genome where a CNV may be linked to specific outcomes.
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Affiliation(s)
- Mallika Varkhedi
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, United States
| | - Vayda R Barker
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, United States
| | - Rachel A Eakins
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, United States
| | - George Blanck
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, United States; Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, United States.
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6
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Wong RLY, Wong MRE, Kuick CH, Saffari SE, Wong MK, Tan SH, Merchant K, Chang KTE, Thangavelu M, Periyasamy G, Chen ZX, Iyer P, Tan EEK, Soh SY, Iyer NG, Fan Q, Loh AHP. Integrated Genomic Profiling and Drug Screening of Patient-Derived Cultures Identifies Individualized Copy Number-Dependent Susceptibilities Involving PI3K Pathway and 17q Genes in Neuroblastoma. Front Oncol 2021; 11:709525. [PMID: 34722256 PMCID: PMC8551924 DOI: 10.3389/fonc.2021.709525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022] Open
Abstract
Neuroblastoma is the commonest extracranial pediatric malignancy. With few recurrent single nucleotide variations (SNVs), mutation-based precision oncology approaches have limited utility, but its frequent and heterogenous copy number variations (CNVs) could represent genomic dependencies that may be exploited for personalized therapy. Patient-derived cell culture (PDC) models can facilitate rapid testing of multiple agents to determine such individualized drug-responses. Thus, to study the relationship between individual genomic aberrations and therapeutic susceptibilities, we integrated comprehensive genomic profiling of neuroblastoma tumors with drug screening of corresponding PDCs against 418 targeted inhibitors. We quantified the strength of association between copy number and cytotoxicity, and validated significantly correlated gene-drug pairs in public data and using machine learning models. Somatic mutations were infrequent (3.1 per case), but copy number losses in 1p (31%) and 11q (38%), and gains in 17q (69%) were prevalent. Critically, in-vitro cytotoxicity significantly correlated only with CNVs, but not SNVs. Among 1278 significantly correlated gene-drug pairs, copy number of GNA13 and DNA damage response genes CBL, DNMT3A, and PPM1D were most significantly correlated with cytotoxicity; the drugs most commonly associated with these genes were PI3K/mTOR inhibitor PIK-75, and CDK inhibitors P276-00, SNS-032, AT7519, flavopiridol and dinaciclib. Predictive Markov random field models constructed from CNVs alone recapitulated the true z-score-weighted associations, with the strongest gene-drug functional interactions in subnetworks involving PI3K and JAK-STAT pathways. Together, our data defined individualized dose-dependent relationships between copy number gains of PI3K and STAT family genes particularly on 17q and susceptibility to PI3K and cell cycle agents in neuroblastoma. Integration of genomic profiling and drug screening of patient-derived models of neuroblastoma can quantitatively define copy number-dependent sensitivities to targeted inhibitors, which can guide personalized therapy for such mutationally quiet cancers.
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Affiliation(s)
| | - Megan R E Wong
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore
| | - Chik Hong Kuick
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Seyed Ehsan Saffari
- Centre for Quantitative Medicine, Duke NUS Medical School, Singapore, Singapore
| | - Meng Kang Wong
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore
| | - Sheng Hui Tan
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore
| | - Khurshid Merchant
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Kenneth T E Chang
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Matan Thangavelu
- Centre for High Throughput Phenomics (CHiP-GIS), Genome Institute of Singapore, Singapore, Singapore
| | - Giridharan Periyasamy
- Centre for High Throughput Phenomics (CHiP-GIS), Genome Institute of Singapore, Singapore, Singapore
| | - Zhi Xiong Chen
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Physiology, National University of Singapore, Singapore, Singapore
| | - Prasad Iyer
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Paediatric Subspecialties Haematology Oncology Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Enrica E K Tan
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Paediatric Subspecialties Haematology Oncology Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Shui Yen Soh
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Paediatric Subspecialties Haematology Oncology Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - N Gopalakrishna Iyer
- Duke NUS Medical School, Singapore, Singapore.,Division of Medical Sciences, National Cancer Centre, Singapore, Singapore
| | - Qiao Fan
- Centre for Quantitative Medicine, Duke NUS Medical School, Singapore, Singapore
| | - Amos H P Loh
- Duke NUS Medical School, Singapore, Singapore.,VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore, Singapore.,Department of Paediatric Surgery, KK Women's and Children's Hospital, Singapore, Singapore
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7
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Musolf AM, Simpson CL, Moiz BA, Pikielny CW, Middlebrooks CD, Mandal D, de Andrade M, Cole MD, Gaba C, Yang P, You M, Li Y, Kupert EY, Anderson MW, Schwartz AG, Pinney SM, Amos CI, Bailey-Wilson JE. Genetic Variation and Recurrent Haplotypes on Chromosome 6q23-25 Risk Locus in Familial Lung Cancer. Cancer Res 2021; 81:3162-3173. [PMID: 33853833 PMCID: PMC8409178 DOI: 10.1158/0008-5472.can-20-3196] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/01/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
Although lung cancer is known to be caused by environmental factors, it has also been shown to have genetic components, and the genetic etiology of lung cancer remains understudied. We previously identified a lung cancer risk locus on 6q23-25 using microsatellite data in families with a history of lung cancer. To further elucidate that signal, we performed targeted sequencing on nine of our most strongly linked families. Two-point linkage analysis of the sequencing data revealed that the signal was heterogeneous and that different families likely had different risk variants. Three specific haplotypes were shared by some of the families: 6q25.3-26 in families 42 and 44, 6q25.2-25.3 in families 47 and 59, and 6q24.2-25.1 in families 30, 33, and 35. Region-based logarithm of the odds scores and expression data identified the likely candidate genes for each haplotype overlap: ARID1B at 6q25.3, MAP3K4 at 6q26, and UTRN (6q24.1) and PHACTR2 (6q24.2). Further annotation was used to zero in on potential risk variants in those genes. All four genes are good candidate genes for lung cancer risk, having been linked to either lung cancer specifically or other cancers. However, this is the first time any of these genes has been implicated in germline risk. Functional analysis of these four genes is planned for future work. SIGNIFICANCE: This study identifies four genes associated with lung cancer risk, which could help guide future lung cancer prevention and treatment approaches.
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Affiliation(s)
- Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Claire L Simpson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
- Department of Genetics, Genomics and Informatics and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Bilal A Moiz
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | | | - Candace D Middlebrooks
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland
| | - Diptasri Mandal
- Department of Genetics, Louisiana State University Health Science Center, New Orleans, Louisiana
| | | | - Michael D Cole
- Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Colette Gaba
- Department of Medicine, University of Toledo Dana Cancer Center, Toledo, Ohio
| | | | - Ming You
- Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Yafang Li
- Baylor College of Medicine, Houston, Texas
| | | | | | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Susan M Pinney
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, Maryland.
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8
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Han JZR, Hastings JF, Phimmachanh M, Fey D, Kolch W, Croucher DR. Personalized Medicine for Neuroblastoma: Moving from Static Genotypes to Dynamic Simulations of Drug Response. J Pers Med 2021; 11:395. [PMID: 34064704 PMCID: PMC8151552 DOI: 10.3390/jpm11050395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/30/2021] [Indexed: 12/21/2022] Open
Abstract
High-risk neuroblastoma is an aggressive childhood cancer that is characterized by high rates of chemoresistance and frequent metastatic relapse. A number of studies have characterized the genetic and epigenetic landscape of neuroblastoma, but due to a generally low mutational burden and paucity of actionable mutations, there are few options for applying a comprehensive personalized medicine approach through the use of targeted therapies. Therefore, the use of multi-agent chemotherapy remains the current standard of care for neuroblastoma, which also conceptually limits the opportunities for developing an effective and widely applicable personalized medicine approach for this disease. However, in this review we outline potential approaches for tailoring the use of chemotherapy agents to the specific molecular characteristics of individual tumours by performing patient-specific simulations of drug-induced apoptotic signalling. By incorporating multiple layers of information about tumour-specific aberrations, including expression as well as mutation data, these models have the potential to rationalize the selection of chemotherapeutics contained within multi-agent treatment regimens and ensure the optimum response is achieved for each individual patient.
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Affiliation(s)
- Jeremy Z. R. Han
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (J.Z.R.H.); (J.F.H.); (M.P.)
| | - Jordan F. Hastings
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (J.Z.R.H.); (J.F.H.); (M.P.)
| | - Monica Phimmachanh
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (J.Z.R.H.); (J.F.H.); (M.P.)
| | - Dirk Fey
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland; (D.F.); (W.K.)
- Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Walter Kolch
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland; (D.F.); (W.K.)
- Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - David R. Croucher
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia; (J.Z.R.H.); (J.F.H.); (M.P.)
- St Vincent’s Hospital Clinical School, UNSW Sydney, Sydney, NSW 2052, Australia
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9
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Shi Y, Yuan J, Rraklli V, Maxymovitz E, Cipullo M, Liu M, Li S, Westerlund I, Bedoya-Reina OC, Bullova P, Rorbach J, Juhlin CC, Stenman A, Larsson C, Kogner P, O’Sullivan MJ, Schlisio S, Holmberg J. Aberrant splicing in neuroblastoma generates RNA-fusion transcripts and provides vulnerability to spliceosome inhibitors. Nucleic Acids Res 2021; 49:2509-2521. [PMID: 33555349 PMCID: PMC7969022 DOI: 10.1093/nar/gkab054] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 01/14/2021] [Accepted: 01/21/2021] [Indexed: 11/12/2022] Open
Abstract
The paucity of recurrent mutations has hampered efforts to understand and treat neuroblastoma. Alternative splicing and splicing-dependent RNA-fusions represent mechanisms able to increase the gene product repertoire but their role in neuroblastoma remains largely unexplored. Here we investigate the presence and possible roles of aberrant splicing and splicing-dependent RNA-fusion transcripts in neuroblastoma. In addition, we attend to establish whether the spliceosome can be targeted to treat neuroblastoma. Through analysis of RNA-sequenced neuroblastoma we show that elevated expression of splicing factors is a strong predictor of poor clinical outcome. Furthermore, we identified >900 primarily intrachromosomal fusions containing canonical splicing sites. Fusions included transcripts from well-known oncogenes, were enriched for proximal genes and in chromosomal regions commonly gained or lost in neuroblastoma. As a proof-of-principle that these fusions can generate altered gene products, we characterized a ZNF451-BAG2 fusion, producing a truncated BAG2-protein which inhibited retinoic acid induced differentiation. Spliceosome inhibition impeded neuroblastoma fusion expression, induced apoptosis and inhibited xenograft tumor growth. Our findings elucidate a splicing-dependent mechanism generating altered gene products in neuroblastoma and show that the spliceosome is a potential target for clinical intervention.
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Affiliation(s)
- Yao Shi
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Juan Yuan
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Vilma Rraklli
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Eva Maxymovitz
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Miriam Cipullo
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Solnavägen 9, SE-171-65 Solna, Sweden
| | - Mingzhi Liu
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Shuijie Li
- Department of Microbiology, Tumor- and Cellbiology, Karolinska Institutet, Solnavägen 9, SE-171 65 Solna, Sweden
| | - Isabelle Westerlund
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
| | - Oscar C Bedoya-Reina
- Department of Microbiology, Tumor- and Cellbiology, Karolinska Institutet, Solnavägen 9, SE-171 65 Solna, Sweden
| | - Petra Bullova
- Department of Microbiology, Tumor- and Cellbiology, Karolinska Institutet, Solnavägen 9, SE-171 65 Solna, Sweden
| | - Joanna Rorbach
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Solnavägen 9, SE-171-65 Solna, Sweden
| | - C Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska (CCK), Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Adam Stenman
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska (CCK), Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Catharina Larsson
- Department of Oncology-Pathology, Karolinska Institutet, Cancer Center Karolinska (CCK), Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Per Kogner
- Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Maureen J O’Sullivan
- Department of Histopathology, Our Lady's Children's Hospital, Dublin, Ireland
- Trinity Translational Medicine Institute, Trinity College, Dublin, Ireland
| | - Susanne Schlisio
- Department of Microbiology, Tumor- and Cellbiology, Karolinska Institutet, Solnavägen 9, SE-171 65 Solna, Sweden
| | - Johan Holmberg
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-171 65 Stockholm, Sweden
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10
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Pagliaroli L, Trizzino M. The Evolutionary Conserved SWI/SNF Subunits ARID1A and ARID1B Are Key Modulators of Pluripotency and Cell-Fate Determination. Front Cell Dev Biol 2021; 9:643361. [PMID: 33748136 PMCID: PMC7969888 DOI: 10.3389/fcell.2021.643361] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/15/2021] [Indexed: 12/15/2022] Open
Abstract
Organismal development is a process that requires a fine-tuned control of cell fate and identity, through timely regulation of lineage-specific genes. These processes are mediated by the concerted action of transcription factors and protein complexes that orchestrate the interaction between cis-regulatory elements (enhancers, promoters) and RNA Polymerase II to elicit transcription. A proper understanding of these dynamics is essential to elucidate the mechanisms underlying developmental diseases. Many developmental disorders, such as Coffin-Siris Syndrome, characterized by growth impairment and intellectual disability are associated with mutations in subunits of the SWI/SNF chromatin remodeler complex, which is an essential regulator of transcription. ARID1B and its paralog ARID1A encode for the two largest, mutually exclusive, subunits of the complex. Mutations in ARID1A and, especially, ARID1B are recurrently associated with a very wide array of developmental disorders, suggesting that these two SWI/SNF subunits play an important role in cell fate decision. In this mini-review we therefore discuss the available scientific literature linking ARID1A and ARID1B to cell fate determination, pluripotency maintenance, and organismal development.
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Affiliation(s)
- Luca Pagliaroli
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
| | - Marco Trizzino
- Department of Biochemistry and Molecular Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
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11
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Johann PD. Invited Review: Dysregulation of chromatin remodellers in paediatric brain tumours - SMARCB1 and beyond. Neuropathol Appl Neurobiol 2021; 46:57-72. [PMID: 32307752 DOI: 10.1111/nan.12616] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/21/2020] [Indexed: 12/13/2022]
Abstract
Mutations in chromatin remodelling genes occur in approximately 25% of all human tumours (Kadoch et al. Nat Genet 45: 592-601, 2013). The spectrum of alterations is broad and comprises single nucleotide variants, insertion/deletions and more complex structural variations. The single most often affected remodelling complex is the SWI/SNF complex (SWItch/sucrose non-fermentable). In the field of paediatric neuro-oncology, the spectrum of affected genes implicated in epigenetic remodelling is narrower with SMARCB1 and SMARCA4 being the most frequent. The low mutation frequencies in many of the SWI/SNF mutant entities underline the fact that perturbed chromatin remodelling is the most salient factor in tumourigenesis and could thus be a potential therapeutic opportunity. Here, I review the genetic basis of aberrant chromatin remodelling in paediatric brain tumours and discuss their impact on the epigenome in the respective entities, mainly medulloblastomas and rhabdoid tumours.
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Affiliation(s)
- P D Johann
- Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany.,Division of Paediatric Neurooncology, German Cancer Research Center (DKFZ) and German Cancer Research Consortium (DKTK), Heidelberg, Germany.,Department of Paediatric Haematology and Oncology, University Hospital Heidelberg, Heidelberg, Germany
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12
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Abstract
Neuroblastoma (NB) is a pediatric cancer of the sympathetic nervous system and one of the most common solid tumors in infancy. Amplification of MYCN, copy number alterations, numerical and segmental chromosomal aberrations, mutations, and rearrangements on a handful of genes, such as ALK, ATRX, TP53, RAS/MAPK pathway genes, and TERT, are attributed as underlying causes that give rise to NB. However, the heterogeneous nature of the disease-along with the relative paucity of recurrent somatic mutations-reinforces the need to understand the interplay of genetic factors and epigenetic alterations in the context of NB. Epigenetic mechanisms tightly control gene expression, embryogenesis, imprinting, chromosomal stability, and tumorigenesis, thereby playing a pivotal role in physio- and pathological settings. The main epigenetic alterations include aberrant DNA methylation, disrupted patterns of posttranslational histone modifications, alterations in chromatin composition and/or architecture, and aberrant expression of non-coding RNAs. DNA methylation and demethylation are mediated by DNA methyltransferases (DNMTs) and ten-eleven translocation (TET) proteins, respectively, while histone modifications are coordinated by histone acetyltransferases and deacetylases (HATs, HDACs), and histone methyltransferases and demethylases (HMTs, HDMs). This article focuses predominately on the crosstalk between the epigenome and NB, and the implications it has on disease diagnosis and treatment.
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13
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Pearson AD, Stegmaier K, Bourdeaut F, Reaman G, Heenen D, Meyers ML, Armstrong SA, Brown P, De Carvalho D, Jabado N, Marshall L, Rivera M, Smith M, Adamson PC, Barone A, Baumann C, Blackman S, Buenger V, Donoghue M, Duncan AD, Fox E, Gadbaw B, Hattersley M, Ho P, Jacobs I, Kelly MJ, Kieran M, Lesa G, Ligas F, Ludwinski D, McDonough J, Nikolova Z, Norga K, Senderowicz A, Taube T, Weiner S, Karres D, Vassal G. Paediatric Strategy Forum for medicinal product development of epigenetic modifiers for children: ACCELERATE in collaboration with the European Medicines Agency with participation of the Food and Drug Administration. Eur J Cancer 2020; 139:135-148. [PMID: 32992153 DOI: 10.1016/j.ejca.2020.08.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/27/2022]
Abstract
The fifth multistakeholder Paediatric Strategy Forum focussed on epigenetic modifier therapies for children and adolescents with cancer. As most mutations in paediatric malignancies influence chromatin-associated proteins or transcription and paediatric cancers are driven by developmental gene expression programs, targeting epigenetic mechanisms is predicted to be a very important therapeutic approach in paediatric cancer. The Research to Accelerate Cures and Equity (RACE) for Children Act FDARA amendments to section 505B of the FD&C Act was implemented in August 2020, and as there are many epigenetic targets on the FDA Paediatric Molecular Targets List, clinical evaluation of epigenetic modifiers in paediatric cancers should be considered early in drug development. Companies are also required to submit to the EMA paediatric investigation plans aiming to ensure that the necessary data to support the authorisation of a medicine for children in EU are of high quality and ethically researched. The specific aims of the forum were i) to identify epigenetic targets or mechanisms of action associated with epigenetic modification relevant to paediatric cancers and ii) to define the landscape for paediatric drug development of epigenetic modifier therapies. DNA methyltransferase inhibitors/hypomethylating agents and histone deacetylase inhibitors were largely excluded from discussion as the aim was to discuss those targets for which therapeutic agents are currently in early paediatric and adult development. Epigenetics is an evolving field and could be highly relevant to many paediatric cancers; the biology is multifaceted and new targets are frequently emerging. Targeting epigenetic mechanisms in paediatric malignancy has in most circumstances yet to reach or extend beyond clinical proof of concept, as many targets do not yet have available investigational drugs developed. Eight classes of medicinal products were discussed and prioritised based on the existing level of science to support early evaluation in children: inhibitors of menin, DOT1L, EZH2, EED, BET, PRMT5 and LSD1 and a retinoic acid receptor alpha agonist. Menin inhibitors should be moved rapidly into paediatric development, in view of their biological rationale, strong preclinical activity and ability to fulfil an unmet clinical need. A combination approach is critical for successful utilisation of any epigenetic modifiers (e.g. EZH2 and EED) and exploration of the optimum combination(s) should be supported by preclinical research and, where possible, molecular biomarker validation in advance of clinical translation. A follow-up multistakeholder meeting focussing on BET inhibitors will be held to define how to prioritise the multiple compounds in clinical development that could be evaluated in children with cancer. As epigenetic modifiers are relatively early in development in paediatrics, there is a clear opportunity to shape the landscape of therapies targeting the epigenome in order that efficient and optimum plans for their evaluation in children and adolescents are developed in a timely manner.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Lynley Marshall
- Royal Marsden NHS Foundation Trust/Institute of Cancer Research, UK
| | | | | | - Peter C Adamson
- Sanofi US, Emeritus Professor of Paediatrics and Pharmacology, Perelman School of Medicine, University of Pennsylvania, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Giovanni Lesa
- Paediatric Medicines Office, Scientific Evidence Generation Department, Human Medicines Division, European Medicines Agency (EMA), Amsterdam, Netherlands
| | - Franca Ligas
- Paediatric Medicines Office, Scientific Evidence Generation Department, Human Medicines Division, European Medicines Agency (EMA), Amsterdam, Netherlands
| | | | | | | | - Koen Norga
- Antwerp University Hospital, Paediatric Committee of the European Medicines Agency, Federal Agency for Medicines and Health Products, Belgium
| | | | | | | | - Dominik Karres
- Paediatric Medicines Office, Scientific Evidence Generation Department, Human Medicines Division, European Medicines Agency (EMA), Amsterdam, Netherlands
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14
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Ribeiro ML, Reyes-Garau D, Armengol M, Fernández-Serrano M, Roué G. Recent Advances in the Targeting of Epigenetic Regulators in B-Cell Non-Hodgkin Lymphoma. Front Genet 2019; 10:986. [PMID: 31681423 PMCID: PMC6807552 DOI: 10.3389/fgene.2019.00986] [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: 06/11/2019] [Accepted: 09/17/2019] [Indexed: 12/13/2022] Open
Abstract
In the last 10 years, major advances have been made in the diagnosis and development of selective therapies for several blood cancers, including B-cell non-Hodgkin lymphoma (B-NHL), a heterogeneous group of malignancies arising from the mature B lymphocyte compartment. However, most of these entities remain incurable and current treatments are associated with variable efficacy, several adverse events, and frequent relapses. Thus, new diagnostic paradigms and novel therapeutic options are required to improve the prognosis of patients with B-NHL. With the recent deciphering of the mutational landscapes of B-cell disorders by high-throughput sequencing, it came out that different epigenetic deregulations might drive and/or promote B lymphomagenesis. Consistently, over the last decade, numerous epigenetic drugs (or epidrugs) have emerged in the clinical management of B-NHL patients. In this review, we will present an overview of the most relevant epidrugs tested and/or used so far for the treatment of different subtypes of B-NHL, from first-generation epigenetic therapies like histone acetyl transferases (HDACs) or DNA-methyl transferases (DNMTs) inhibitors to new agents showing selectivity for proteins that are mutated, translocated, and/or overexpressed in these diseases, including EZH2, BET, and PRMT. We will dissect the mechanisms of action of these epigenetic inhibitors, as well as the molecular processes underlying their lack of efficacy in refractory patients. This review will also provide a summary of the latest strategies being employed in preclinical and clinical settings, and will point out the most promising lines of investigation in the field.
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Affiliation(s)
- Marcelo L. Ribeiro
- Laboratory of Experimental Hematology, Department of Hematology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
- Laboratory of Immunopharmacology and Molecular Biology, Sao Francisco University Medical School, Braganca Paulista, São Paulo, Brazil
| | - Diana Reyes-Garau
- Laboratory of Experimental Hematology, Department of Hematology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Marc Armengol
- Laboratory of Experimental Hematology, Department of Hematology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Miranda Fernández-Serrano
- Laboratory of Experimental Hematology, Department of Hematology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
| | - Gaël Roué
- Laboratory of Experimental Hematology, Department of Hematology, Vall d’Hebron Institute of Oncology (VHIO), Vall d’Hebron University Hospital, Autonomous University of Barcelona, Barcelona, Spain
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15
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Zheng S, Alfaro-Munoz K, Wei W, Wang X, Wang F, Eterovic AK, Shaw KRM, Meric-Bernstam F, Fuller GN, Chen K, Verhaak RG, Mills GB, Yung WKA, Weathers SP, de Groot JF. Prospective Clinical Sequencing of Adult Glioma. Mol Cancer Ther 2019; 18:991-1000. [PMID: 30926639 DOI: 10.1158/1535-7163.mct-18-1122] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 12/18/2018] [Accepted: 03/12/2019] [Indexed: 11/16/2022]
Abstract
Malignant gliomas are a group of intracranial cancers associated with disproportionately high mortality and morbidity. Here, we report ultradeep targeted sequencing of a prospective cohort of 237 tumors from 234 patients consisting of both glioblastoma (GBM) and lower-grade glioma (LGG) using our customized gene panels. We identified 2,485 somatic mutations, including single-nucleotide substitutions and small indels, using a validated in-house protocol. Sixty-one percent of the mutations were contributed by 12 hypermutators. The hypermutators were enriched for recurrent tumors and had comparable outcome, and most were associated with temozolomide exposure. TP53 was the most frequently mutated gene in our cohort, followed by IDH1 and EGFR We detected at least one EGFR mutation in 23% of LGGs, which was significantly higher than 6% seen in The Cancer Genome Atlas, a pattern that can be partially explained by the different patient composition and sequencing depth. IDH hotspot mutations were found with higher frequencies in LGG (83%) and secondary GBM (77%) than primary GBM (9%). Multivariate analyses controlling for age, histology, and tumor grade confirm the prognostic value of IDH mutation. We predicted 1p/19q status using the panel sequencing data and received only modest performance by benchmarking the prediction to FISH results of 50 tumors. Targeted therapy based on the sequencing data resulted in three responders out of 14 participants. In conclusion, our study suggests ultradeep targeted sequencing can recapitulate previous findings and can be a useful approach in the clinical setting.
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Affiliation(s)
- Siyuan Zheng
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. .,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Epidemiology and Biostatistics, Greehey Children's Cancer Research Institute, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Kristin Alfaro-Munoz
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wei Wei
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xiaojing Wang
- Department of Epidemiology and Biostatistics, Greehey Children's Cancer Research Institute, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Fang Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Agda Karina Eterovic
- Institute of Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kenna R Mills Shaw
- Institute of Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Funda Meric-Bernstam
- Institute of Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gregory N Fuller
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Roel G Verhaak
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,The Jackson Lab for Genomic Medicine, Farmington, Connecticut
| | - Gordon B Mills
- Institute of Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - W K Alfred Yung
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Shiao-Pei Weathers
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John F de Groot
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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16
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Xing Z, Wei L, Jiang X, Conroy J, Glenn S, Bshara W, Yu T, Pao A, Tanaka S, Kawai A, Choi C, Wang J, Liu S, Morrison C, Yu YE. Analysis of mutations in primary and metastatic synovial sarcoma. Oncotarget 2018; 9:36878-36888. [PMID: 30627328 PMCID: PMC6305143 DOI: 10.18632/oncotarget.26416] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023] Open
Abstract
Synovial sarcoma is the most common pediatric non-rhabdomyosarcoma soft tissue sarcoma and accounts for about 8-10% of all soft tissue sarcoma in childhood and adolescence. The presence of a chromosomal translocation-associated SS18-SSX-fusion gene is causally linked to development of primary synovial sarcoma. Metastases occur in approximately 50-70% of synovial sarcoma cases with yet unknown mechanisms, which led to about 70-80% mortality rate in five years. To explore the possibilities to investigate metastatic mechanisms of synovial sarcoma, we carried out the first genome-wide search for potential genetic biomarkers and drivers associated with metastasis by comparative mutational profiling of 18 synovial sarcoma samples isolated from four patients carrying the primary tumors and another four patients carrying the metastatic tumors through whole exome sequencing. Selected from the candidates yielded from this effort, we examined the effect of the multiple missense mutations of ADAM17, which were identified solely in metastatic synovial sarcoma. The mutant alleles as well as the wild-type control were expressed in the mammalian cells harboring the SS18-SSX1 fusion gene. The ADAM17-P729H mutation was shown to enhance cell migration, a phenotype associated with metastasis. Therefore, like ADAM17-P729H, other mutations we identified solely in metastatic synovial sarcoma may also have the potential to serve as an entry point for unraveling the metastatic mechanisms of synovial sarcoma.
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Affiliation(s)
- Zhuo Xing
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Lei Wei
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Xiaoling Jiang
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Jeffrey Conroy
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA
| | - Sean Glenn
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA
| | - Wiam Bshara
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Tao Yu
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA.,Department of Medical Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Annie Pao
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Shinya Tanaka
- Department of Cancer Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Christopher Choi
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Jianmin Wang
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Carl Morrison
- Center for Personalized Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.,OmniSeq Inc., Buffalo, NY, USA.,Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Y Eugene Yu
- The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program, Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY, USA.,Genetics, Genomics and Bioinformatics Program, State University of New York at Buffalo, Buffalo, NY, USA
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17
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Durinck K, Speleman F. Epigenetic regulation of neuroblastoma development. Cell Tissue Res 2018; 372:309-324. [PMID: 29350283 DOI: 10.1007/s00441-017-2773-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/16/2017] [Indexed: 02/07/2023]
Abstract
In recent years, technological advances have enabled a detailed landscaping of the epigenome and the mechanisms of epigenetic regulation that drive normal cell function, development and cancer. Rather than merely a structural entity to support genome compaction, we now look at chromatin as a very dynamic and essential constellation that is actively participating in the tight orchestration of transcriptional regulation as well as DNA replication and repair. The unique feature of chromatin flexibility enabling fast switches towards more or less restricted epigenetic cellular states is, not surprisingly, intimately connected to cancer development and treatment resistance, and the central role of epigenetic alterations in cancer is illustrated by the finding that up to 50% of all mutations across cancer entities affect proteins controlling the chromatin status. We summarize recent insights into epigenetic rewiring underlying neuroblastoma (NB) tumor formation ranging from changes in DNA methylation patterns and mutations in epigenetic regulators to global effects on transcriptional regulatory circuits that involve key players in NB oncogenesis. Insights into the disruption of the homeostatic epigenetic balance contributing to developmental arrest of sympathetic progenitor cells and subsequent NB oncogenesis are rapidly growing and will be exploited towards the development of novel therapeutic strategies to increase current survival rates of patients with high-risk NB.
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Affiliation(s)
- Kaat Durinck
- Center for Medical Genetics, Ghent University, Ghent, Belgium.
| | - Frank Speleman
- Center for Medical Genetics, Ghent University, Ghent, Belgium
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