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Kazansky Y, Cameron D, Mueller HS, Demarest P, Zaffaroni N, Arrighetti N, Zuco V, Kuwahara Y, Somwar R, Ladanyi M, Qu R, de Stanchina E, Dela Cruz FS, Kung AL, Gounder MM, Kentsis A. Overcoming Clinical Resistance to EZH2 Inhibition Using Rational Epigenetic Combination Therapy. Cancer Discov 2024; 14:965-981. [PMID: 38315003 PMCID: PMC11147720 DOI: 10.1158/2159-8290.cd-23-0110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 11/30/2023] [Accepted: 01/25/2024] [Indexed: 02/07/2024]
Abstract
Epigenetic dependencies have become evident in many cancers. On the basis of antagonism between BAF/SWI-SNF and PRC2 in SMARCB1-deficient sarcomas, we recently completed the clinical trial of the EZH2 inhibitor tazemetostat. However, the principles of tumor response to epigenetic therapy in general, and tazemetostat in particular, remain unknown. Using functional genomics and diverse experimental models, we define molecular mechanisms of tazemetostat resistance in SMARCB1-deficient tumors. We found distinct acquired mutations that converge on the RB1/E2F axis and decouple EZH2-dependent differentiation and cell-cycle control. This allows tumor cells to escape tazemetostat-induced G1 arrest, suggests a general mechanism for effective therapy, and provides prospective biomarkers for therapy stratification, including PRICKLE1. On the basis of this, we develop a combination strategy to circumvent tazemetostat resistance using bypass targeting of AURKB. This offers a paradigm for rational epigenetic combination therapy suitable for translation to clinical trials for epithelioid sarcomas, rhabdoid tumors, and other epigenetically dysregulated cancers. SIGNIFICANCE Genomic studies of patient epithelioid sarcomas and rhabdoid tumors identify mutations converging on a common pathway for response to EZH2 inhibition. Resistance mutations decouple drug-induced differentiation from cell-cycle control. We identify an epigenetic combination strategy to overcome resistance and improve durability of response, supporting its investigation in clinical trials. See related commentary by Paolini and Souroullas, p. 903. This article is featured in Selected Articles from This Issue, p. 897.
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Affiliation(s)
- Yaniv Kazansky
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
- Tow Center for Developmental Oncology, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daniel Cameron
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
- Tow Center for Developmental Oncology, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Helen S Mueller
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
- Tow Center for Developmental Oncology, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Phillip Demarest
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
- Tow Center for Developmental Oncology, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Noemi Arrighetti
- Molecular Pharmacology Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Valentina Zuco
- Molecular Pharmacology Unit, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Yasumichi Kuwahara
- Department of Biochemistry and Molecular Biology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Romel Somwar
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Rui Qu
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Elisa de Stanchina
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Filemon S Dela Cruz
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andrew L Kung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mrinal M Gounder
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Alex Kentsis
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
- Tow Center for Developmental Oncology, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
- Departments of Pediatrics, Pharmacology, and Physiology & Biophysics, Weill Medical College of Cornell University, New York, New York
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2
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Grunewald TGP, Postel-Vinay S, Nakayama RT, Berlow NE, Bolzicco A, Cerullo V, Dermawan JK, Frezza AM, Italiano A, Jin JX, Loarer FL, Martin-Broto J, Pecora A, Perez-Martinez A, Tam YB, Tirode F, Trama A, Pasquali S, Vescia M, ortmann L, Wortmann M, Yoshida A, Webb K, Huang PH, Keller C, Antonescu CR. Translational Aspects of Epithelioid Sarcoma: Current Consensus. Clin Cancer Res 2024; 30:1079-1092. [PMID: 37916971 PMCID: PMC10947972 DOI: 10.1158/1078-0432.ccr-23-2174] [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: 07/19/2023] [Revised: 09/12/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023]
Abstract
Epithelioid sarcoma (EpS) is an ultra-rare malignant soft-tissue cancer mostly affecting adolescents and young adults. EpS often exhibits an unfavorable clinical course with fatal outcome in ∼50% of cases despite aggressive multimodal therapies combining surgery, chemotherapy, and irradiation. EpS is traditionally classified in a more common, less aggressive distal (classic) type and a rarer aggressive proximal type. Both subtypes are characterized by a loss of nuclear INI1 expression, most often following homozygous deletion of its encoding gene, SMARCB1-a core subunit of the SWI/SNF chromatin remodeling complex. In 2020, the EZH2 inhibitor tazemetostat was the first targeted therapy approved for EpS, raising new hopes. Still, the vast majority of patients did not benefit from this drug or relapsed rapidly. Further, other recent therapeutic modalities, including immunotherapy, are only effective in a fraction of patients. Thus, novel strategies, specifically targeted to EpS, are urgently needed. To accelerate translational research on EpS and eventually boost the discovery and development of new diagnostic tools and therapeutic options, a vibrant translational research community has formed in past years and held two international EpS digital expert meetings in 2021 and 2023. This review summarizes our current understanding of EpS from the translational research perspective and points to innovative research directions to address the most pressing questions in the field, as defined by expert consensus and patient advocacy groups.
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Affiliation(s)
- Thomas G. P. Grunewald
- Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
- Hopp Children’s Cancer Center (KiTZ), Heidelberg, Germany
- Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany
| | - Sophie Postel-Vinay
- Département d’Innovation Thérapeutique et d’Essais Précoces (DITEP), Gustave Roussy, Université Paris Saclay, Villejuif, France
- U981 INSERM, ERC StG team, Gustave Roussy, Villejuif, France
| | - Robert T. Nakayama
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Noah E. Berlow
- Children’s Cancer Therapy Development Institute, Hillsboro, Oregon
| | - Andrea Bolzicco
- Patients association ‘Orchestra per la vita’ Aps, Rome, Italy
- Patients association: ‘MC4 in corsa per la vita!’ ETS, Milan, Italy
| | - Vincenzo Cerullo
- Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Josephine K. Dermawan
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio
| | - Anna Maria Frezza
- Department of Medical Oncology 2, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Antoine Italiano
- Early Phase Trials and Sarcoma Units, Institut Bergonie, Bordeaux, France
- Faculty of Medicine, University of Bordeaux, Bordeaux, France
| | - Jia xiang Jin
- Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
- Hopp Children’s Cancer Center (KiTZ), Heidelberg, Germany
| | - Francois Le Loarer
- Faculty of Medicine, University of Bordeaux, Bordeaux, France
- Department of Pathology, Institut Bergonie, Bordeaux, France
| | - Javier Martin-Broto
- Medical Oncology Department, Fundacion Jimenez Diaz University Hospital; University Hospital General de Villalba, and Instituto de Investigacion Sanitaria Fundacion Jimenez Diaz (IIS/FJD; UAM), Madrid, Spain
| | - Andrew Pecora
- John Theurer Cancer Center, Georgetown Lombardi Comprehensive Cancer Center, Washington, DC
| | - Antonio Perez-Martinez
- Patients association: ‘MC4 in corsa per la vita!’ ETS, Milan, Italy
- Department of Pediatric Hemato-Oncology, Autonomous University of Madrid, Institute for Health Research, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Yuen Bun Tam
- Division of Molecular Pathology, Institute of Cancer Research, London, United Kingdom
| | - Franck Tirode
- Universite Claude Bernard, INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, Centre Leon Berard, Lyon, France
| | - Annalisa Trama
- Department of Epidemiology and Data Science; Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sandro Pasquali
- Molecular Pharmacology, Department of Experimental Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | - Lukas ortmann
- Patients association “Smarcb1” e.V., Bergisch Gladbach, Germany
| | | | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Kim Webb
- Patients association “Smarcb1” e.V., Bergisch Gladbach, Germany
| | - Paul H. Huang
- Division of Molecular Pathology, Institute of Cancer Research, London, United Kingdom
- Sarcoma Unit, Royal Marsden Hospital, Belmont, United Kingdom
| | - Charles Keller
- Children’s Cancer Therapy Development Institute, Hillsboro, Oregon
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Haefliger S, Chervova O, Davies C, Nottley S, Hargreaves S, Sumathi VP, Amary F, Tirabosco R, Pillay N, Beck S, Flanagan AM, Lyskjær I. Subclassification of epithelioid sarcoma with potential therapeutic impact. J Pathol 2023; 260:368-375. [PMID: 37316954 PMCID: PMC10952852 DOI: 10.1002/path.6135] [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: 01/08/2023] [Revised: 04/15/2023] [Accepted: 05/07/2023] [Indexed: 06/16/2023]
Abstract
Epithelioid sarcoma is a rare and aggressive mesenchymal tumour, the genetic hallmark of which is the loss of expression of SMARCB1, a key member of the SWItch/Sucrose Non-Fermentable (SWI/SNF) chromatin remodelling complex. Hampered by its rarity, epithelioid sarcoma has received little research attention and therapeutic options for this disease remain limited. SMARCB1-deficient tumours also include malignant rhabdoid tumour, atypical teratoid and rhabdoid tumour, epithelioid malignant peripheral nerve sheath tumour, and poorly differentiated chordoma. Histologically, it can be challenging to distinguish epithelioid sarcoma from malignant rhabdoid tumour and other SMARCB1-deficient tumours, whereas methylation profiling shows that they represent distinct entities and facilitates their classification. Methylation studies on SMARCB1-deficient tumours, although not including epithelioid sarcomas, reported methylation subgroups which resulted in new clinical stratification and therapeutic approaches. In addition, emerging evidence indicates that immunotherapy, including immune checkpoint inhibitors, represents a promising therapeutic strategy for SMARCB1-deficient tumours. Here, we show that some epithelioid sarcomas share methylation patterns of malignant rhabdoid tumours indicating that this could help to distinguish these entities and guide treatment. Using gene expression data, we also showed that the immune environment of epithelioid sarcoma is characterised by a predominance of CD8+ lymphocytes and M2 macrophages. These findings have potential implications for the management of patients with epithelioid sarcoma. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Simon Haefliger
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
- Institute of Medical Genetics and PathologyUniversity Hospital BaselBaselSwitzerland
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Olga Chervova
- Medical Genomics Research GroupUniversity College London, UCL Cancer InstituteLondonUK
| | - Christopher Davies
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Steven Nottley
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
| | - Steven Hargreaves
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
| | | | - Fernanda Amary
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Roberto Tirabosco
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Nischalan Pillay
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Stephan Beck
- Medical Genomics Research GroupUniversity College London, UCL Cancer InstituteLondonUK
| | - Adrienne M Flanagan
- Research Department of PathologyUniversity College London, UCL Cancer InstituteLondonUK
- Department of HistopathologyRoyal National Orthopaedic HospitalStanmoreUK
| | - Iben Lyskjær
- Department of Molecular MedicineAarhus University HospitalAarhusDenmark
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Andrei V, Haefliger S, Baumhoer D. Superficial mesenchymal tumours expressing epithelial markers on immunohistochemistry: Diagnostic clues and pitfalls. Semin Diagn Pathol 2023:S0740-2570(23)00044-8. [PMID: 37147159 DOI: 10.1053/j.semdp.2023.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/24/2023] [Indexed: 05/07/2023]
Abstract
The diagnosis of mesenchymal neoplasms arising in the superficial soft tissue can be challenging as some entities are rare and show overlapping features. Moreover, the spectrum of mesenchymal tumours has expanded recently to include potential new entities, some of which have been described after the 5th edition of the World Health Organisation (WHO) classification of soft tissue and bone tumours published in 2020. In the skin and superficial soft tissue, tumours of epidermal, melanocytic and appendageal origin are more commonly encountered than mesenchymal neoplasms. However, specific entities from the latter category can occasionally express epithelial markers on immunohistochemistry, some of them in a strong and diffuse manner. It is therefore crucial to be aware of diagnostic pitfalls when encountering cytokeratin positivity in superficial soft tissue neoplasms. This article provides an overview on the differential diagnosis of these mesenchymal tumours that can sporadically occur also in the skin, including myoepithelial neoplasms, epithelioid sarcoma, keratin positive giant cell tumour of soft tissue / xanthogranulomatous epithelial tumour, superficial CD34-positive fibroblastic tumour / PRDM10-rearranged soft tissue tumour, and perineurioma.
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Affiliation(s)
- Vanghelita Andrei
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Schoenbeinstrasse 40, 4031 Basel, Switzerland
| | - Simon Haefliger
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Schoenbeinstrasse 40, 4031 Basel, Switzerland
| | - Daniel Baumhoer
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Schoenbeinstrasse 40, 4031 Basel, Switzerland.
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5
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Dermawan JK, Singer S, Tap WD, Nacev BA, Chi P, Wexler LH, Ortiz MV, Gounder M, Antonescu CR. The genetic landscape of SMARCB1 alterations in SMARCB1-deficient spectrum of mesenchymal neoplasms. Mod Pathol 2022; 35:1900-1909. [PMID: 36088476 PMCID: PMC9712236 DOI: 10.1038/s41379-022-01148-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 02/01/2023]
Abstract
SMARCB1 biallelic inactivation resulting in SMARCB1/INI1 deficiency drives a wide range of malignancies, including many mesenchymal tumors. However, the specific types of SMARCB1 alterations and spectrum of cooperating mutations among various types of sarcomas has not been well investigated. We profiled SMARCB1 genetic alterations by targeted DNA sequencing and fluorescence in situ hybridization (FISH) in a large cohort of 118 soft tissue and bone tumors, including SMARCB1-deficient sarcomas (78, 66%): epithelioid sarcomas, epithelioid peripheral nerve sheath tumors, poorly differentiated chordomas, malignant rhabdoid tumors, and soft tissue myoepithelial tumors, as well as non-SMARCB1-deficient sarcomas (40, 34%) with various SMARCB1 genetic alterations (mutations, copy number alterations). SMARCB1 loss by immunohistochemistry was present in 94% SMARCB1 pathogenic cases. By combined sequencing and FISH assays, 80% of SMARCB1-deficient tumors harbored homozygous (biallelic) SMARCB1 loss, while 14% demonstrated heterozygous SMARCB1 loss-of-function (LOF) alterations, and 6% showed no demonstrable SMARCB1 alterations. FISH and sequencing were concordant in the ability to detect SMARCB1 loss in 48% of cases. Epithelioid sarcomas most commonly (75%) harbored homozygous deletions, while a subset showed focal intragenic deletions or LOF mutations (nonsense, frameshift). In contrast, most soft tissue myoepithelial tumors (83%) harbored SMARCB1 nonsense point mutations without copy number losses. Additionally, clinically significant, recurrent co-occurring genetic events were rare regardless of histotype. By sequencing, extended 22q copy number loss in genes flanking the SMARCB1 locus (22q11.23) occurred in one-third of epithelioid sarcomas and the majority of poorly differentiated chordomas. Poorly differentiated chordomas and soft tissue myoepithelial tumors showed significantly worse overall and disease-free survival compared to epithelioid sarcomas. Overall, SMARCB1 LOF alterations predominate and account for SMARCB1 protein loss in most cases: majority being biallelic but a subset were heterozygous. In contrast, SMARCB1 alterations of uncertain significance can be seen in diverse sarcomas types and does not indicate a SMARCB1-deficient entity.
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Affiliation(s)
- Josephine K Dermawan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samuel Singer
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - William D Tap
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin A Nacev
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ping Chi
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael V Ortiz
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mrinal Gounder
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cristina R Antonescu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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Esperança-Martins M, F.Duarte I, Rodrigues M, Soares do Brito J, López-Presa D, Costa L, Fernandes I, Dias S. On the Relevance of Soft Tissue Sarcomas Metabolic Landscape Mapping. Int J Mol Sci 2022; 23:11430. [PMID: 36232732 PMCID: PMC9570318 DOI: 10.3390/ijms231911430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022] Open
Abstract
Soft tissue sarcomas (STS) prognosis is disappointing, with current treatment strategies being based on a "fit for all" principle and not taking distinct sarcoma subtypes specificities and genetic/metabolic differences into consideration. The paucity of precision therapies in STS reflects the shortage of studies that seek to decipher the sarcomagenesis mechanisms. There is an urge to improve STS diagnosis precision, refine STS classification criteria, and increase the capability of identifying STS prognostic biomarkers. Single-omics and multi-omics studies may play a key role on decodifying sarcomagenesis. Metabolomics provides a singular insight, either as a single-omics approach or as part of a multi-omics strategy, into the metabolic adaptations that support sarcomagenesis. Although STS metabolome is scarcely characterized, untargeted and targeted metabolomics approaches employing different data acquisition methods such as mass spectrometry (MS), MS imaging, and nuclear magnetic resonance (NMR) spectroscopy provided important information, warranting further studies. New chromatographic, MS, NMR-based, and flow cytometry-based methods will offer opportunities to therapeutically target metabolic pathways and to monitorize the response to such metabolic targeting therapies. Here we provide a comprehensive review of STS omics applications, comprising a detailed analysis of studies focused on the metabolic landscape of these tumors.
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Affiliation(s)
- Miguel Esperança-Martins
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal
- Vascular Biology & Cancer Microenvironment Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Translational Oncobiology Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Iola F.Duarte
- CICECO-Aveiro Institute of Materials, Department of Chemistry, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Mara Rodrigues
- Vascular Biology & Cancer Microenvironment Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Joaquim Soares do Brito
- Orthopedics Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal
| | - Dolores López-Presa
- Pathology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal
| | - Luís Costa
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal
- Translational Oncobiology Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Clínica Universitária de Oncologia Médica, 1649-028 Lisboa, Portugal
| | - Isabel Fernandes
- Medical Oncology Department, Centro Hospitalar Universitário Lisboa Norte, 1649-028 Lisboa, Portugal
- Translational Oncobiology Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Clínica Universitária de Oncologia Médica, 1649-028 Lisboa, Portugal
| | - Sérgio Dias
- Vascular Biology & Cancer Microenvironment Lab, Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Clínica Universitária de Oncologia Médica, 1649-028 Lisboa, Portugal
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Del Savio E, Maestro R. Beyond SMARCB1 Loss: Recent Insights into the Pathobiology of Epithelioid Sarcoma. Cells 2022; 11:cells11172626. [PMID: 36078034 PMCID: PMC9454995 DOI: 10.3390/cells11172626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Epithelioid sarcoma (ES) is a very rare and aggressive mesenchymal tumor of unclear origin and uncertain lineage characterized by a prevalent epithelioid morphology. The only recurrent genetic alteration reported in ES as yet is the functional inactivation of SMARCB1 (SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily B member 1), a key component of the SWI/SNF (SWItch/Sucrose Non-Fermentable) chromatin remodeling complexes. How SMARCB1 deficiency dictates the clinicopathological characteristics of ES and what other molecular defects concur to its malignant progression is still poorly understood. This review summarizes the recent findings about ES pathobiology, including defects in chromatin remodeling and other signaling pathways and their role as therapeutic vulnerabilities.
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Cooper GW, Hong AL. SMARCB1-Deficient Cancers: Novel Molecular Insights and Therapeutic Vulnerabilities. Cancers (Basel) 2022; 14:cancers14153645. [PMID: 35892904 PMCID: PMC9332782 DOI: 10.3390/cancers14153645] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Loss of SMARCB1 has been identified as the sole mutation in a number of rare pediatric and adult cancers, most of which have a poor prognosis despite intensive therapies including surgery, radiation, and chemotherapy. Thus, a more robust understanding of the mechanisms driving this set of cancers is vital to improving patient treatment and outcomes. This review outlines recent advances made in our understanding of the function of SMARCB1 and how these advances have been used to discover putative therapeutic vulnerabilities. Abstract SMARCB1 is a critical component of the BAF complex that is responsible for global chromatin remodeling. Loss of SMARCB1 has been implicated in the initiation of cancers such as malignant rhabdoid tumor (MRT), atypical teratoid rhabdoid tumor (ATRT), and, more recently, renal medullary carcinoma (RMC). These SMARCB1-deficient tumors have remarkably stable genomes, offering unique insights into the epigenetic mechanisms in cancer biology. Given the lack of druggable targets and the high mortality associated with SMARCB1-deficient tumors, a significant research effort has been directed toward understanding the mechanisms of tumor transformation and proliferation. Accumulating evidence suggests that tumorigenicity arises from aberrant enhancer and promoter regulation followed by dysfunctional transcriptional control. In this review, we outline key mechanisms by which loss of SMARCB1 may lead to tumor formation and cover how these mechanisms have been used for the design of targeted therapy.
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Affiliation(s)
- Garrett W. Cooper
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
| | - Andrew L. Hong
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, USA
- Correspondence:
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Zou Z, Sun W, Xu Y, Liu W, Zhong J, Lin X, Chen Y. Application of Multi-Omics Approach in Sarcomas: A Tool for Studying Mechanism, Biomarkers, and Therapeutic Targets. Front Oncol 2022; 12:946022. [PMID: 35875106 PMCID: PMC9304858 DOI: 10.3389/fonc.2022.946022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/16/2022] [Indexed: 12/18/2022] Open
Abstract
Sarcomas are rare, heterogeneous mesenchymal neoplasms with various subtypes, each exhibiting unique genetic characteristics. Although studies have been conducted to improve the treatment for sarcomas, the specific development from normal somatic cells to sarcoma cells is still unclear and needs further research. The diagnosis of sarcomas depends heavily on the pathological examination, which is yet a difficult work and requires expert analysis. Advanced treatment like precise medicine optimizes the efficacy of treatment and the prognosis of sarcoma patients, yet, in sarcomas, more studies should be done to put such methods in clinical practice. The revolution of advanced technology has pushed the multi-omics approach to the front, and more could be learnt in sarcomas with such methods. Multi-omics combines the character of each omics techniques, analyzes the mechanism of tumor cells from different levels, which makes up for the shortage of single-omics, and gives us an integrated picture of bioactivities inside tumor cells. Multi-omics research of sarcomas has reached appreciable progress in recent years, leading to a better understanding of the mutation, proliferation, and metastasis of sarcomas. With the help of multi-omics approach, novel biomarkers were found, with promising effects in improving the process of diagnosis, prognosis anticipation, and treatment decision. By analyzing large amounts of biological features, subtype clustering could be done in a better precision, which may be useful in the clinical procedure. In this review, we summarized recent discoveries using multi-omics approach in sarcomas, discussed their merits and challenges, and concluded with future perspectives of the sarcoma research.
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Affiliation(s)
- Zijian Zou
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wei Sun
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Xu
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wanlin Liu
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jingqin Zhong
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xinyi Lin
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yong Chen
- Department of Musculoskeletal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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10
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Rasmussen SV, Jin JX, Bickford LR, Woods AD, Sahm F, Crawford KA, Nagamori K, Goto H, Torres KE, Sidoni A, Rudzinski ER, Thway K, Jones RL, Ciulli A, Wright H, Lathara M, Srinivasa G, Kannan K, Huang PH, Grünewald TGP, Berlow NE, Keller C. Functional genomic analysis of epithelioid sarcoma reveals distinct proximal and distal subtype biology. Clin Transl Med 2022; 12:e961. [PMID: 35839307 PMCID: PMC9286527 DOI: 10.1002/ctm2.961] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Metastatic epithelioid sarcoma (EPS) remains a largely unmet clinical need in children, adolescents and young adults despite the advent of EZH2 inhibitor tazemetostat. METHODS In order to realise consistently effective drug therapies, a functional genomics approach was used to identify key signalling pathway vulnerabilities in a spectrum of EPS patient samples. EPS biopsies/surgical resections and cell lines were studied by next-generation DNA exome and RNA deep sequencing, then EPS cell cultures were tested against a panel of chemical probes to discover signalling pathway targets with the most significant contributions to EPS tumour cell maintenance. RESULTS Other biologically inspired functional interrogations of EPS cultures using gene knockdown or chemical probes demonstrated only limited to modest efficacy in vitro. However, our molecular studies uncovered distinguishing features (including retained dysfunctional SMARCB1 expression and elevated GLI3, FYN and CXCL12 expression) of distal, paediatric/young adult-associated EPS versus proximal, adult-associated EPS. CONCLUSIONS Overall results highlight the complexity of the disease and a limited chemical space for therapeutic advancement. However, subtle differences between the two EPS subtypes highlight the biological disparities between younger and older EPS patients and emphasise the need to approach the two subtypes as molecularly and clinically distinct diseases.
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Affiliation(s)
| | - Jia Xiang Jin
- Division of Translational Pediatric Sarcoma Research, Hopp Children's Cancer Center (KiTZ), German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany
| | | | - Andrew D Woods
- Children's Cancer Therapy Development Institute, Beaverton, Oregon, USA
| | - Felix Sahm
- Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany.,Clinical Cooperation Unit Neuropathology, German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.,Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
| | | | - Kiyo Nagamori
- Children's Cancer Therapy Development Institute, Beaverton, Oregon, USA
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Keila E Torres
- Sarcoma Surgical Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Angelo Sidoni
- Section of Pathology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Erin R Rudzinski
- Department of Pathology, Seattle Children's Hospital, Seattle, Washington, USA
| | - Khin Thway
- Sarcoma Unit, Royal Marsden Hospital, Belmont, UK.,Division of Molecular Pathology, Institute of Cancer Research, London, UK
| | - Robin L Jones
- Sarcoma Unit, Royal Marsden Hospital, Belmont, UK.,Division of Clinical Studies, Institute of Cancer Research, London, UK
| | - Alessio Ciulli
- School of Life Sciences, University of Dundee, Dundee, UK
| | | | | | | | | | - Paul H Huang
- Sarcoma Unit, Royal Marsden Hospital, Belmont, UK.,Division of Molecular Pathology, Institute of Cancer Research, London, UK
| | - Thomas G P Grünewald
- Division of Translational Pediatric Sarcoma Research, Hopp Children's Cancer Center (KiTZ), German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany.,Department of Neuropathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Noah E Berlow
- Children's Cancer Therapy Development Institute, Beaverton, Oregon, USA
| | - Charles Keller
- Children's Cancer Therapy Development Institute, Beaverton, Oregon, USA
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11
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Hammer PM, Kolin DL, Charville GW, McCluggage WG, Howitt BE. A Subset of SMARCB1 (INI-1)-deficient vulvar neoplasms express germ cell markers. Histopathology 2022; 81:342-351. [PMID: 35758187 DOI: 10.1111/his.14709] [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: 04/07/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022]
Abstract
AIMS SMARCB1 (INI-1)-deficient vulvar neoplasms comprise a group of rare tumours that include epithelioid sarcoma (ES), myoepithelial carcinoma (MEC), the recently described myoepithelioma-like tumour of the vulvar region (MELTVR), and sarcomas that are difficult to classify. It has been suggested that so-called vulvar yolk sac tumours (YST) may represent morphologic variants of SMARCB1-deficient tumours; thus, we investigated the immunoreactivity of germ cell markers in SMARCB1-deficient vulvar neoplasms. METHODS AND RESULTS Ten SMARCB1-deficient vulvar neoplasms were stained with germ cell tumour markers (SALL4, glypican-3, OCT3/4, and AFP) and re-reviewed for morphologic features. The tumours occurred in adult females (median age 41 years) and included ES (n = 7), MELTVR (n = 2), and MEC (n = 1). All cases showed loss of SMARCB1 expression. Four cases (40%) were focally positive for SALL4 in areas with morphology of typical-appearing ES. One of these cases also showed focal staining for OCT3/4. One ES showed a transition from typical-appearing ES to YST-like morphology, with diffuse expression of SALL4 and glypican-3, and focal expression of AFP, in these latter areas. All other tested cases were negative for AFP. CONCLUSION Our study reveals that SALL4, glypican-3, and OCT3/4 are positive in a subset of SMARCB1-deficient vulvar neoplasms, which may pose a diagnostic challenge and result in consideration of a germ cell tumour. We also highlight a case with transition from ES to YST-like morphology, lending further support that YSTs of the vulva are somatically derived SMARCB1-deficient neoplasms and do not represent true germ-cell neoplasia.
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Affiliation(s)
- Phoebe M Hammer
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - David L Kolin
- Division of Women's and Perinatal Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gregory W Charville
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, UK
| | - Brooke E Howitt
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
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12
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Wakamatsu T, Ogawa H, Yoshida K, Matsuoka Y, Shizuma K, Imura Y, Tamiya H, Nakai S, Yagi T, Nagata S, Yui Y, Sasagawa S, Takenaka S. Establishment of Organoids From Human Epithelioid Sarcoma With the Air-Liquid Interface Organoid Cultures. Front Oncol 2022; 12:893592. [PMID: 35677170 PMCID: PMC9169059 DOI: 10.3389/fonc.2022.893592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/20/2022] [Indexed: 01/02/2023] Open
Abstract
Background Although biological resources are essential for basic and preclinical research in the oncological field, those of sarcoma are not sufficient for rapid development of the treatment. So far, some sarcoma cell lines have been established, however, the success rate was low and the established sarcoma types were frequently biased. Therefore, an efficient culture method is needed to determine the various types of sarcomas. Organoid culture is a 3-dimentional culture method that enables the recapitulation of the tumor microenvironment and the success rate reported is higher than the 2-dimentional culture. The purpose of this study was to report our newly established organoids from human epithelioid sarcoma using the air-liquid interface organoid culture method. Methods We treated 2 patients with epithelioid sarcoma in our institute. The remaining sarcoma specimens after surgical resection were embedded in collagen type 1 gels according to the air-liquid interface organoid culture method. After serial passages, we xenografted the organoids to NOD-scid IL2Rgnull (NSG) mice. Using the developed tumors, we performed histological and genomic analyses to compare the similarities and differences with the original epithelioid sarcoma from the patient. Results Organoids from the epithelioid sarcoma could be serially cultured and maintained in collagen type 1 gels for more than 3 passages. Developed orthotopic tumor xenografts were detected in the NSG mice. After the process was repeated severally, the patient derived organoid lines from the epithelioid sarcoma were established. The established organoids showed loss of integrase interactor 1 expression with polymerase chain reaction and immunohistochemical analyses. The xenografted organoids of the epithelioid sarcoma had histologically similar phenotypes with the original tumor and genetically resembled it to some degree. Conclusions The present study demonstrated 2 novel established organoid models of epithelioid sarcoma, and our organoid models could be used to investigate the molecular pathogenesis and develop a novel treatment.
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Affiliation(s)
- Toru Wakamatsu
- Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, Osaka, Japan.,Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hisataka Ogawa
- Nitto joint Research Department for Nucleic Acid Medicine, Research Center, Osaka International Cancer Institute, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiichi Yoshida
- Next-generation Precision Medicine Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Yukiko Matsuoka
- Next-generation Precision Medicine Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Kazuko Shizuma
- Nitto joint Research Department for Nucleic Acid Medicine, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Yoshinori Imura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hironari Tamiya
- Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, Osaka, Japan.,Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Sho Nakai
- Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, Osaka, Japan.,Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Toshinari Yagi
- Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, Osaka, Japan
| | - Shigenori Nagata
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoshihiro Yui
- Sarcoma Treatment Laboratory, Research Institute, Nozaki Tokushukai Hospital, Osaka, Japan
| | - Satoru Sasagawa
- Molecular Biology Laboratory, Research Institute, Nozaki Tokushukai Hospital, Osaka, Japan
| | - Satoshi Takenaka
- Department of Musculoskeletal Oncology Service, Osaka International Cancer Institute, Osaka, Japan.,Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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13
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Drabent P, Fraitag S. Malignant Superficial Mesenchymal Tumors in Children. Cancers (Basel) 2022; 14:cancers14092160. [PMID: 35565289 PMCID: PMC9104419 DOI: 10.3390/cancers14092160] [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: 03/19/2022] [Revised: 04/12/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022] Open
Abstract
Malignant superficial mesenchymal tumors are a very diverse group of neoplasms with few clinical and radiological discriminatory factors. Hence, some of these cancers are rarely suspected based on clinical and radiological grounds, others may be easily misdiagnosed, and the histological analysis of a biopsy or resection is central in the diagnostic process. In children, the age at presentation is a major element of the differential diagnosis. Some tumors have a very distinct epidemiology, while others may be seen at any age. More recently, the advances in molecular biology have greatly improved the diagnosis of mesenchymal tumors and new entities are still being described. In the present review, we provide an overview of the diversity of malignant superficial mesenchymal tumors in children, including new and/or rare entities. We discuss the important diagnostic features, be they clinical, histological, or molecular. Special attention was given to the genetic features of these tumors, particularly when they were helpful for the diagnosis or treatment.
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Affiliation(s)
- Philippe Drabent
- Department of Pathology, Necker-Enfants Malades Hospital, APHP, 75015 Paris, France;
- Faculté de Médecine, Université de Paris, 75005 Paris, France
| | - Sylvie Fraitag
- Department of Pathology, Necker-Enfants Malades Hospital, APHP, 75015 Paris, France;
- Faculté de Médecine, Université de Paris, 75005 Paris, France
- Correspondence:
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14
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Immunotherapy for SMARCB1-Deficient Sarcomas: Current Evidence and Future Developments. Biomedicines 2022; 10:biomedicines10030650. [PMID: 35327458 PMCID: PMC8945563 DOI: 10.3390/biomedicines10030650] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/03/2022] [Accepted: 03/10/2022] [Indexed: 12/13/2022] Open
Abstract
Mutations in subunits of the SWItch Sucrose Non-Fermentable (SWI/SNF) complex occur in 20% of all human tumors. Among these, the core subunit SMARCB1 is the most frequently mutated, and SMARCB1 loss represents a founder driver event in several malignancies, such as malignant rhabdoid tumors (MRT), epithelioid sarcoma, poorly differentiated chordoma, and renal medullary carcinoma (RMC). Intriguingly, SMARCB1-deficient pediatric MRT and RMC have recently been reported to be immunogenic, despite their very simple genome and low tumor mutational burden. Responses to immune checkpoint inhibitors have further been reported in some SMARCB1-deficient diseases. Here, we will review the preclinical data and clinical data that suggest that immunotherapy, including immune checkpoint inhibitors, may represent a promising therapeutic strategy for SMARCB1-defective tumors. We notably discuss the heterogeneity that exists among the spectrum of malignancies driven by SMARCB1-loss, and highlight challenges that are at stake for developing a personalized immunotherapy for these tumors, notably using molecular profiling of the tumor and of its microenvironment.
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15
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"Adult rhabdoid tumors-a riddle inside an enigma?". Mod Pathol 2022; 35:1757-1758. [PMID: 36127393 PMCID: PMC9708543 DOI: 10.1038/s41379-022-01144-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/03/2022] [Accepted: 07/15/2022] [Indexed: 12/24/2022]
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16
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Haberecker M, Bühler MM, Mendieta AP, Guggenberger R, Arnold F, Markert E, Rechsteiner M, Zoche M, Britschgi C, Pauli C. Molecular and immunophenotypic characterization of SMARCB1 (INI1) - deficient intrathoracic Neoplasms. Mod Pathol 2022; 35:1860-1869. [PMID: 35864317 PMCID: PMC9708576 DOI: 10.1038/s41379-022-01133-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 12/24/2022]
Abstract
The switch/sucrose-non-fermenting (SWI/SNF) complex is an ATP-dependent chromatin remodeling complex that plays important roles in DNA repair, transcription and cell differentiation. This complex consists of multiple subunits and is of particular interest in thoracic malignancies due to frequent subunit alteration of SMARCA4 (BRG1). Much less is known about SMARCB1 (INI1) deficient intrathoracic neoplasms, which are rare, often misclassified and understudied. In a retrospective analysis of 1479 intrathoracic malignant neoplasms using immunohistochemistry for INI1 (SMARCB1) on tissue micro arrays (TMA) and a search through our hospital sarcoma database, we identified in total nine intrathoracic, INI1 deficient cases (n = 9). We characterized these cases further by additional immunohistochemistry, broad targeted genomic analysis, methylation profiling and correlated them with clinical and radiological data. This showed that genomic SMARCB1 together with tumor suppressor alterations drive tumorigenesis in some of these cases, rather than epigenetic changes such as DNA methylation. A proper diagnostic classification, however, remains challenging. Intrathoracic tumors with loss or alteration of SMARCB1 (INI1) are highly aggressive and remain often underdiagnosed due to their rarity, which leads to false diagnostic interpretations. A better understanding of these tumors and proper diagnosis is important for better patient care as clinical trials and more targeted therapeutic options are emerging.
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Affiliation(s)
- Martina Haberecker
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Marco Matteo Bühler
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Alicia Pliego Mendieta
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Roman Guggenberger
- grid.412004.30000 0004 0478 9977Department of Radiology, University Hospital Zurich, Zurich, Switzerland
| | - Fabian Arnold
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Eva Markert
- grid.413349.80000 0001 2294 4705Institute of Pathology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Markus Rechsteiner
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Martin Zoche
- grid.412004.30000 0004 0478 9977Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Christian Britschgi
- grid.412004.30000 0004 0478 9977Department of Medical Oncology and Hematology, University Hospital Zurich, Comprehensive Cancer Center Zurich, Zurich, Switzerland
| | - Chantal Pauli
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland. .,University Zurich, Zurich, Switzerland.
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17
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Li J, Mulvihill TS, Li L, Barrott JJ, Nelson ML, Wagner L, Lock IC, Pozner A, Lambert SL, Ozenberger BB, Ward MB, Grossmann AH, Liu T, Banito A, Cairns BR, Jones KB. A Role for SMARCB1 in Synovial Sarcomagenesis Reveals That SS18-SSX Induces Canonical BAF Destruction. Cancer Discov 2021; 11:2620-2637. [PMID: 34078620 PMCID: PMC8567602 DOI: 10.1158/2159-8290.cd-20-1219] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 04/06/2021] [Accepted: 05/14/2021] [Indexed: 01/09/2023]
Abstract
Reduced protein levels of SMARCB1 (also known as BAF47, INI1, SNF5) have long been observed in synovial sarcoma. Here, we show that combined Smarcb1 genetic loss with SS18-SSX expression in mice synergized to produce aggressive tumors with histomorphology, transcriptomes, and genome-wide BAF-family complex distributions distinct from SS18-SSX alone, indicating a defining role for SMARCB1 in synovial sarcoma. Smarcb1 silencing alone in mesenchyme modeled epithelioid sarcomagenesis. In mouse and human synovial sarcoma cells, SMARCB1 was identified within PBAF and canonical BAF (CBAF) complexes, coincorporated with SS18-SSX in the latter. Recombinant expression of CBAF components in human cells reconstituted CBAF subcomplexes that contained equal levels of SMARCB1 regardless of SS18 or SS18-SSX inclusion. In vivo, SS18-SSX expression led to whole-complex CBAF degradation, rendering increases in the relative prevalence of other BAF-family subtypes, PBAF and GBAF complexes, over time. Thus, SS18-SSX alters BAF subtypes levels/balance and genome distribution, driving synovial sarcomagenesis. SIGNIFICANCE: The protein level of BAF component SMARCB1 is reduced in synovial sarcoma but plays a defining role, incorporating into PBAF and SS18-SSX-containing canonical BAF complexes. Reduced levels of SMARCB1 derive from whole-complex degradation of canonical BAF driven by SS18-SSX, with relative increases in the abundance of other BAF-family subtypes.See related commentary by Maxwell and Hargreaves, p. 2375.This article is highlighted in the In This Issue feature, p. 2355.
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Affiliation(s)
- Jinxiu Li
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Timothy S. Mulvihill
- Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Li Li
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Jared J. Barrott
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Mary L. Nelson
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Lena Wagner
- Hopp Children's Cancer Center (KiTZ), German Cancer Research Center (DFKZ), Heidelberg, Germany
| | - Ian C. Lock
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Amir Pozner
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Sydney Lynn Lambert
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Benjamin B. Ozenberger
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Michael B. Ward
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.,Department of Pathology, University of Utah, Salt Lake City, Utah
| | - Allie H. Grossmann
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.,Department of Pathology, University of Utah, Salt Lake City, Utah
| | - Ting Liu
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.,Department of Pathology, University of Utah, Salt Lake City, Utah
| | - Ana Banito
- Hopp Children's Cancer Center (KiTZ), German Cancer Research Center (DFKZ), Heidelberg, Germany
| | - Bradley R. Cairns
- Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.,Howard Hughes Medical Institute, University of Utah, Salt Lake City, Utah.,Corresponding Authors: Kevin B. Jones, University of Utah, Huntsman Cancer Institute, 2000 Circle of Hope Drive, Salt Lake City, UT 84112. Phone: 801-585-0300; Fax: 801-585-7084; E-mail: ; and Bradley R. Cairns,
| | - Kevin B. Jones
- Department of Orthopedics, University of Utah, Salt Lake City, Utah.,Department of Oncological Sciences, University of Utah, Salt Lake City, Utah.,Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.,Corresponding Authors: Kevin B. Jones, University of Utah, Huntsman Cancer Institute, 2000 Circle of Hope Drive, Salt Lake City, UT 84112. Phone: 801-585-0300; Fax: 801-585-7084; E-mail: ; and Bradley R. Cairns,
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18
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Clemente O, Ottaiano A, Di Lorenzo G, Bracigliano A, Lamia S, Cannella L, Pizzolorusso A, Di Marzo M, Santorsola M, De Chiara A, Fazioli F, Tafuto S. Is immunotherapy in the future of therapeutic management of sarcomas? J Transl Med 2021; 19:173. [PMID: 33902630 PMCID: PMC8077947 DOI: 10.1186/s12967-021-02829-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/12/2021] [Indexed: 12/19/2022] Open
Abstract
Sarcomas are rare, ubiquitous and heterogeneous tumors usually treated with surgery, chemotherapy, target therapy, and radiotherapy. However, 25-50% of patients experience local relapses and/or distant metastases after chemotherapy with an overall survival about 12-18 months. Recently, immuno-therapy has revolutionized the cancer treatments with initial indications for non-small cell lung cancer (NSCLC) and melanoma (immune-checkpoint inhibitors).Here, we provide a narrative review on the topic as well as a critical description of the currently available trials on immunotherapy treatments in patients with sarcoma. Given the promising results obtained with anti-PD-1 monoclonal antibodies (pembrolizumab and nivolumab) and CAR-T cells, we strongly believe that these new immunotherapeutic approaches, along with an innovative characterization of tumor genetics, will provide an exciting opportunity to ameliorate the therapeutic management of sarcomas.
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Affiliation(s)
- Ottavia Clemente
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Alessandro Ottaiano
- Division of Innovative Therapies, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Giuseppe Di Lorenzo
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Alessandra Bracigliano
- Nuclear Medicine Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale, 80131, Naples, Italy
| | - Sabrina Lamia
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Lucia Cannella
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Antonio Pizzolorusso
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Massimiliano Di Marzo
- Department of Abdominal Oncology, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Mariachiara Santorsola
- Division of Innovative Therapies, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Annarosaria De Chiara
- Histopathology of Lymphomas and Sarcomas SSD, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Flavio Fazioli
- Orthopedic Oncology Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy
| | - Salvatore Tafuto
- Sarcomas and Rare Tumors Unit, Istituto Nazionale Tumori, IRCCS - Fondazione "G. Pascale", 80131, Naples, Italy.
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19
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Baker TG, Lyons MJ, Leddy L, Parham DM, Welsh CT. Epithelioid Sarcoma Arising in a Long-Term Survivor of an Atypical Teratoid/Rhabdoid Tumor in a Patient With Rhabdoid Tumor Predisposition Syndrome. Pediatr Dev Pathol 2021; 24:164-168. [PMID: 33470921 DOI: 10.1177/1093526620986492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Rhabdoid tumor predisposition syndrome (RTPS) is defined as the presence of a SMARCB1 or SMARCA4 genetic aberration in a patient with malignant rhabdoid tumor. Patients with RTPS are more likely to present with synchronous or metachronous rhabdoid tumors. Based on the current state of rhabdoid tumor taxonomy, these diagnoses are based largely on patient demographics, anatomic location of disease, and immunohistochemistry, despite their nearly identical histologic and immunohistochemical profiles. Thus, the true distinction between such tumors remains a diagnostic challenge. Central nervous system atypical teratoid/rhabdoid tumor (AT/RT) is a rare, aggressive, primarily pediatric malignancy with variable histologic features and a well documented association with loss of SMARCB1 expression. Epithelioid sarcoma (ES) is a rare soft tissue tumor arising in patients of all ages and characteristically staining for both mesenchymal and epithelial immunohistochemical markers while usually demonstrating loss of SMARCB1 expression. To our knowledge we herein present the first documented case of a patient with RTPS who presented with metachronous AT/RT and ES.
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Affiliation(s)
- Tiffany G Baker
- Department of Pathology and Laboratory, Medical University of South Carolina, Charleston, South Carolina
| | | | - Lee Leddy
- Department of Orthopaedics and Physical Medicine, Medical University of South Carolina, Charleston, South Carolina
| | | | - Cynthia T Welsh
- Department of Pathology and Laboratory, Medical University of South Carolina, Charleston, South Carolina
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20
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Simeone N, Frezza AM, Zaffaroni N, Stacchiotti S. Tazemetostat for advanced epithelioid sarcoma: current status and future perspectives. Future Oncol 2020; 17:1253-1263. [PMID: 33289402 DOI: 10.2217/fon-2020-0781] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Epithelioid sarcoma (ES) is an aggressive ultra-rare soft-tissue sarcoma marked by SMARCB1/INI1 deficiency. SMARCB1/INI1 deficiency leads to elevated expression of EZH2, a component of polycomb repressive complex 2, which mediates gene silencing by catalyzing H3K27me3. Tazemetostat is an oral, SAM-competitive inhibitor of EZH2, whose blockade prevents the methylation of histone H3K27, thus decreasing the growth of EZH2 mutated or over-expressing cancer cells. Tazemetostat has been approved for the treatment of patients aged 16 years and older with metastatic or advanced ES not eligible for complete resection, based on the positive results of a single-arm Phase II basket study. Tazemetostat though represents a new treatment option for ES patients, although clinical/molecular predictors of response are still to be identified. The combination of tazemetostat with other drugs like doxorubicin and immunotherapeutic agents is currently under investigation in ES patients.
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Affiliation(s)
- Noemi Simeone
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, 20133, Italy
| | - Anna Maria Frezza
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, 20133, Italy
| | - Nadia Zaffaroni
- Department of Experimental Oncology & Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, 20133, Italy
| | - Silvia Stacchiotti
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, 20133, Italy
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21
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Nacev BA, Jones KB, Intlekofer AM, Yu JSE, Allis CD, Tap WD, Ladanyi M, Nielsen TO. The epigenomics of sarcoma. Nat Rev Cancer 2020; 20:608-623. [PMID: 32782366 PMCID: PMC8380451 DOI: 10.1038/s41568-020-0288-4] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/26/2020] [Indexed: 12/11/2022]
Abstract
Epigenetic regulation is critical to physiological control of development, cell fate, cell proliferation, genomic integrity and, fundamentally, transcriptional regulation. This epigenetic control occurs at multiple levels including through DNA methylation, histone modification, nucleosome remodelling and modulation of the 3D chromatin structure. Alterations in genes that encode chromatin regulators are common among mesenchymal neoplasms, a collection of more than 160 tumour types including over 60 malignant variants (sarcomas) that have unique and varied genetic, biological and clinical characteristics. Herein, we review those sarcomas in which chromatin pathway alterations drive disease biology. Specifically, we emphasize examples of dysregulation of each level of epigenetic control though mechanisms that include alterations in metabolic enzymes that regulate DNA methylation and histone post-translational modifications, mutations in histone genes, subunit loss or fusions in chromatin remodelling and modifying complexes, and disruption of higher-order chromatin structure. Epigenetic mechanisms of tumorigenesis have been implicated in mesenchymal tumours ranging from chondroblastoma and giant cell tumour of bone to chondrosarcoma, malignant peripheral nerve sheath tumour, synovial sarcoma, epithelioid sarcoma and Ewing sarcoma - all diseases that present in a younger patient population than most cancers. Finally, we review current and potential future approaches for the development of sarcoma therapies based on this emerging understanding of chromatin dysregulation.
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Affiliation(s)
- Benjamin A Nacev
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- The Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY, USA
| | - Kevin B Jones
- Department of Orthopaedics, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT, USA
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Andrew M Intlekofer
- Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jamie S E Yu
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - C David Allis
- The Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY, USA
| | - William D Tap
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Torsten O Nielsen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
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22
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Wang Z, Zhang S, Yang H, Zhuang R, Guo X, Tong H, Zhang Y, Lu W, Zhou Y. Efficacy and safety of anlotinib, a multikinase angiogenesis inhibitor, in combination with epirubicin in preclinical models of soft tissue sarcoma. Cancer Med 2020; 9:3344-3352. [PMID: 32181596 PMCID: PMC7221313 DOI: 10.1002/cam4.2941] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 01/05/2020] [Accepted: 01/31/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Anlotinib is a novel, orally administered, multitarget receptor tyrosine kinase inhibitor. It functions by inhibiting tumor angiogenesis and proliferative signaling pathways. In this study, we aimed to investigate the efficacy and safety of anlotinib plus epirubicin in a sarcoma patient-derived xenografts (PDX) model. METHODS We firstly established a PDX model using fresh tumor tissues that were surgically removed from a patient diagnosed with malignant fibrous histiocytoma. Thirty-six PDX models were divided into six groups and treated with anlotinib alone (low-dose, 1.5 or high-dose, 3.0 mg/kg/day, oral gavage), or with anlotinib plus epirubicin (3.0 mg/kg/once weekly, i.p.) when the tumors grew to 150-200 mm3 . After 5 weeks of treatment, the mice were sacrificed, and the tumors were measured by weight and processed for IHC and H&E staining. IHC staining was performed to detect CD31, EGFR, MVD, and Ki-67 on paraffin sections. H&E stainings were performed to examine the microcosmic changes that occurred in the tumor tissues and myocardium, respectively. RESULTS After 5 weeks, treatment with anlotinib or epirubicin alone significantly inhibited tumor growth in the sarcoma PDX model compared with the vehicle control. Tumor volume in the high-dose anlotinib group was significantly smaller than the low-dose anlotinib group (P < .001). Combined high-dose anlotinib and epirubicin treatment resulted in the most pronounced tumor inhibition. In the groups treated with the anlotinib-containing regimen, the expression levels of CD31, EGFR, MVD, and Ki-67 were significantly low. The weight in each group had no statistical differences; the same applied to the hepatic function, cardiac function, and toxicity. CONCLUSIONS High-dose anlotinib combined with epirubicin was an effective and safe therapy for STS.
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Affiliation(s)
- Zhi‐Ming Wang
- Department of Medical OncologyZhongshan HospitalFudan UniversityShanghaiChina
- Xiamen BranchZhongshan HospitalFudan UniversityXiamenChina
| | - Shi‐Long Zhang
- Minhang HospitalFudan UniversityShanghaiChina
- Minhang HospitalFudan UniversityInstitute of Fudan‐Minhang Academic Health SystemShanghaiChina
| | - Hua Yang
- Department of General SurgeryShanghai Public Health Clinical CenterZhongshan Hospital (South Branch)Fudan UniversityShanghaiChina
| | - Rong‐Yuan Zhuang
- Department of Medical OncologyZhongshan HospitalFudan UniversityShanghaiChina
| | - Xi Guo
- Department of Medical OncologyZhongshan HospitalFudan UniversityShanghaiChina
| | - Han‐Xing Tong
- Department of General SurgeryShanghai Public Health Clinical CenterZhongshan Hospital (South Branch)Fudan UniversityShanghaiChina
- Department of General SurgeryZhongshan HospitalFudan UniversityShanghaiChina
| | - Yong Zhang
- Department of General SurgeryShanghai Public Health Clinical CenterZhongshan Hospital (South Branch)Fudan UniversityShanghaiChina
- Department of General SurgeryZhongshan HospitalFudan UniversityShanghaiChina
| | - Wei‐Qi Lu
- Department of General SurgeryShanghai Public Health Clinical CenterZhongshan Hospital (South Branch)Fudan UniversityShanghaiChina
- Department of General SurgeryZhongshan HospitalFudan UniversityShanghaiChina
| | - Yu‐Hong Zhou
- Department of Medical OncologyZhongshan HospitalFudan UniversityShanghaiChina
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23
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Chen L, Wang L, Zhang X, Yao M, Fu P. Ipsilateral breast metastasis after axillary dissection caused by epithelioid sarcoma: a case report and pathological investigation. Diagn Pathol 2019; 14:111. [PMID: 31615564 PMCID: PMC6792219 DOI: 10.1186/s13000-019-0888-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/11/2019] [Indexed: 11/13/2022] Open
Abstract
Background Epithelioid sarcoma (ES) is a rare malignant soft tissue tumor, commonly occurring in distal extremities, such as fingers, hands and wrists. For oncologists and surgeons, a female patient with enlarged axillary lymph node on one side only is easily diagnosed with an occult breast carcinoma rather than ES. Besides, whole breast metastasis of ES has not been reported yet. Case presentation A 47-year-old Chinese woman came to the outpatient clinic of First Affiliated Hospital of Zhejiang University (FAHZU) with a complaint of an asymptomatic right axillary mass for 3 months. Then she received surgical resection of the right axillary lymph nodes and right supraclavicular lymph nodes. According to the clinical tumor site and routine immunohistochemistry (IHC), suspicion of metastatic epithelial sarcoma and metastatic breast cancer could not be ruled out. Subsequently, with more detailed medical history review and physical examination, a mass on the right forearm was found, which was considered as the primary lesion. Further IHC and Molecular Genetics revealed that all the neoplastic cells exhibited loss of INI1 protein and were negative for ERG gene rearrangement yet positive for epithelial membrane antigen (EMA), cytokeratin (CK) 8, CK19, Vimentin, CD34. The final diagnosis was ES. She received postoperative chemotherapy, without radiotherapy. Unexpectedly, an ipsilateral breast metastasis was developed at ten months after surgery. Regrettably, there was no positive result of the metastatic breast sample, based on a genome sequencing by a 381-cancer-gene panel in a lab. Therefore, she went through another round of chemotherapy and took Apatinib for maintenance treatment. During the last follow-up (26 months after diagnosis), the disease was under control. Conclusion This rare but interesting case enables breast surgeons and pathologists to accumulate more experience of differential diagnosis of axillary mass for personalized treatment in clinical practice. Meanwhile, ipsilateral breast metastasis of ES we reported in the case urges that clinicians attach greater importance to the tumor metastasis mechanism.
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Affiliation(s)
- Luyan Chen
- Department of Breast Center, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310009, China
| | - Li Wang
- Department of Pathology, Shaoxing People's Hospital, School of Medicine, Zhejiang University, Shaoxing, 312000, China
| | - Xiaochen Zhang
- Department of Oncology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Minya Yao
- Department of Breast Center, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310009, China
| | - Peifen Fu
- Department of Breast Center, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310009, China.
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24
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Jia L, Carlo MI, Khan H, Nanjangud GJ, Rana S, Cimera R, Zhang Y, Hakimi AA, Verma AK, Al-Ahmadie HA, Fine SW, Gopalan A, Sirintrapun SJ, Tickoo SK, Reuter VE, Gartrell BA, Chen YB. Distinctive mechanisms underlie the loss of SMARCB1 protein expression in renal medullary carcinoma: morphologic and molecular analysis of 20 cases. Mod Pathol 2019; 32:1329-1343. [PMID: 30980040 PMCID: PMC6731129 DOI: 10.1038/s41379-019-0273-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 01/12/2023]
Abstract
Renal medullary carcinoma is a rare but highly aggressive type of renal cancer occurring in patients with sickle cell trait or rarely with other hemoglobinopathies. Loss of SMARCB1 protein expression, a core subunit of the switch/sucrose nonfermentable (SWI/SNF) chromatin remodeling complex, has emerged as a key diagnostic feature of these tumors. However, the molecular mechanism underlying this loss remains unclear. We retrospectively identified 20 patients diagnosed with renal medullary carcinoma at two institutions from 1996 to 2017. All patients were confirmed to have sickle cell trait, and all tumors exhibited a loss of SMARCB1 protein expression by immunohistochemistry. The status of SMARCB1 locus was examined by fluorescence in situ hybridization (FISH) using 3-color probes, and somatic alterations were detected by targeted next-generation sequencing platforms. FISH analysis of all 20 cases revealed 11 (55%) with concurrent hemizygous loss and translocation of SMARCB1, 6 (30%) with homozygous loss of SMARCB1, and 3 (15%) without structural or copy number alterations of SMARCB1 despite protein loss. Targeted sequencing revealed a pathogenic somatic mutation of SMARCB1 in one of these 3 cases that were negative by FISH. Tumors in the 3 subsets with different FISH findings largely exhibited similar clinicopathologic features, however, homozygous SMARCB1 deletion was found to show a significant association with the solid growth pattern, whereas tumors dominated by reticular/cribriform growth were enriched for SMARCB1 translocation. Taken together, we demonstrate that different molecular mechanisms underlie the loss of SMARCB1 expression in renal medullary carcinoma. Biallelic inactivation of SMARCB1 occurs in a large majority of cases either via concurrent hemizygous loss and translocation disrupting SMARCB1 or by homozygous loss.
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Affiliation(s)
- Liwei Jia
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria I Carlo
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hina Khan
- Department of Hematology and Oncology, Lifespan Cancer Institute at the Rhode Island Hospital, Providence, RI, USA
| | - Gouri J Nanjangud
- Molecular Cytogenetics Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Satshil Rana
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Robert Cimera
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yanming Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - A Ari Hakimi
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Amit K Verma
- Albert Einstein College of Medicine, New York, NY, USA
| | - Hikmat A Al-Ahmadie
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samson W Fine
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Anuradha Gopalan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - S Joseph Sirintrapun
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Victor E Reuter
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin A Gartrell
- Departments of Medical Oncology and Urology, Montefiore Medical Center, Bronx, NY, USA
| | - Ying-Bei Chen
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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25
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[Pathological and molecular features of malignancies underlined by BAF complexes inactivation]. Ann Pathol 2019; 39:399-413. [PMID: 31255411 DOI: 10.1016/j.annpat.2019.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/25/2019] [Accepted: 05/09/2019] [Indexed: 12/20/2022]
Abstract
BAF complexes are chromatin remodelling complexes made up of 15 subunits which overview transcription regulation. A subset of their subunits are notoriously linked to cancer, with the examples of SMARCB1, SMARCA4, ARID1A/1B and PBRM1. The complexes act as tumor suppressor genes, commonly mutated in a wide array of malignancies with an overrepresentation of sarcomas and tumors of the central nervous system. The recurrent inactivation of their genes points towards their driving role in the tumorigenesis of SMARCB1 in malignant rhabdoid tumors and SMARCA4 in small cell carcinoma of the ovary, hypercalcemic type. These tumors are morphologically similar composed of solid sheets of cells displaying vesicular nuclei dotted with clear chromatin and conspicuous nucleoli. Genomically, they share simple diploid profiles with no other alterations than in the culprit gene. Other mesenchymal tumors, distinct from malignant rhabdoid tumors are associated with BAF alterations, namely epithelioid sarcomas, SMARCA4-deficient thoracic sarcomas. BAF subunits are mostly inactivated through mutations or deletions but also occur through translocations in medullary carcinoma of the kidney and synovial sarcomas. Apart from tumors displaying recurrent alterations of the complexes, some variants or tumor variants display BAF alterations, including epithelioid malignant peripheral nerve sheet tumors and poorly differentiated chordomas. Lastly, some malignancies display low frequency of BAF alterations, in keeping with their passenger role in tumorigenesis with the example of dedifferentiated carcinomas, especially in colon, lung and uterus. BAF complexes alterations correlate with morphological features recognizable by microscopy, paving the way for their routine diagnosis and potential therapeutic prospects.
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Orlando KA, Nguyen V, Raab JR, Walhart T, Weissman BE. Remodeling the cancer epigenome: mutations in the SWI/SNF complex offer new therapeutic opportunities. Expert Rev Anticancer Ther 2019; 19:375-391. [PMID: 30986130 DOI: 10.1080/14737140.2019.1605905] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Cancer genome sequencing studies have discovered mutations in members of the SWItch/Sucrose Non-Fermentable (SWI/SNF) chromatin-remodeling complex in nearly 25% of human cancers. The SWI/SNF complex, first discovered in S. cerevisiae, shows strong conservation from yeast to Drosophila to mammals, contains approximately 10-12 subunits and regulates nucleosome positioning through the energy generated by its ATPase subunits. The unexpected finding of frequent mutations in the complex has fueled studies to identify the mechanisms that drive tumor development and the accompanying therapeutic vulnerabilities. Areas covered: In the review, we focus upon the potential roles different SWI/SNF subunit mutations play in human oncogenesis, their common and unique mechanisms of transformation and the potential for translating these mechanisms into targeted therapies for SWI/SNF-mutant tumors. Expert opinion: We currently have limited insights into how mutations in different SWI/SNF subunits drive the development of human tumors. Because the SWI/SNF complex participates in a broad range of normal cellular functions, defining specific oncogenic pathways has proved difficult. In addition, therapeutic options for SWI/SNF-mutant cancers have mainly evolved from high-throughput screens of cell lines with mutations in different subunits. Future studies should follow a more coherent plan to pinpoint common vulnerabilities among these tumors.
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Affiliation(s)
- Krystal A Orlando
- a Department of Pathology and Laboratory Medicine , University of North Carolina , Chapel Hill , NC , USA
| | - Vinh Nguyen
- b Curriculum in Toxicology and Environmental Medicine , University of North Carolina , Chapel Hill , NC , USA
| | - Jesse R Raab
- c Department of Genetics , University of North Carolina , Chapel Hill , NC , USA
| | - Tara Walhart
- d Lineberger Comprehensive Cancer Center , University of North Carolina , Chapel Hill , NC , USA
| | - Bernard E Weissman
- a Department of Pathology and Laboratory Medicine , University of North Carolina , Chapel Hill , NC , USA.,b Curriculum in Toxicology and Environmental Medicine , University of North Carolina , Chapel Hill , NC , USA.,d Lineberger Comprehensive Cancer Center , University of North Carolina , Chapel Hill , NC , USA
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Alfert A, Moreno N, Kerl K. The BAF complex in development and disease. Epigenetics Chromatin 2019; 12:19. [PMID: 30898143 PMCID: PMC6427853 DOI: 10.1186/s13072-019-0264-y] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/13/2019] [Indexed: 01/16/2023] Open
Abstract
The ATP-dependent chromatin remodelling complex BAF (= mammalian SWI/SNF complex) is crucial for the regulation of gene expression and differentiation. In the course of evolution from yeast to mammals, the BAF complex evolved an immense complexity with a high number of subunits encoded by gene families. In this way, tissue-specific BAF function and regulation of development begin with the combinatorial assembly of distinct BAF complexes such as esBAF, npBAF and nBAF. Furthermore, whole-genome sequencing reveals the tremendous role BAF complex mutations have in both neurodevelopmental disorders and human malignancies. Therefore, gaining a more elaborate insight into how BAF complex assembly influences its function and which role distinct subunits play, will hopefully give rise to a better understanding of disease pathogenesis and ultimately to new treatments for many human diseases.
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Affiliation(s)
- Amelie Alfert
- Department of Paediatric Haematology and Oncology, University Children’s Hospital Muenster, Domagkstraße 24, 48149 Muenster, Germany
| | - Natalia Moreno
- Department of Paediatric Haematology and Oncology, University Children’s Hospital Muenster, Domagkstraße 24, 48149 Muenster, Germany
| | - Kornelius Kerl
- Department of Paediatric Haematology and Oncology, University Children’s Hospital Muenster, Domagkstraße 24, 48149 Muenster, Germany
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28
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Trieu V, Aulet RM, Ciolino A, Rimash T. SMARCB1-Deficient Sinonasal Carcinoma: A Case Report and Discussion of the Clinical Implications. Ann Otol Rhinol Laryngol 2019; 128:676-680. [PMID: 30873845 DOI: 10.1177/0003489419836668] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE SMARCB1-deficient sinonasal tract carcinomas are an emerging subset of rare tumors recently described in the literature, with less than 100 reported cases. Given the aggressive nature of this tumor, timely diagnosis is especially important. We present a case report of a SMARCB1-deficient carcinoma of the sinonasal tract. METHODS Case report with review of the literature. RESULTS The patient was a 53-year-old male with computed tomography (CT)-proven mass of the right ethmoid and sphenoid sinuses. Rigid nasal endoscopy revealed a purple mass completely obstructing the right nasal cavity that extended inferiorly from the posterior ethmoids and sphenoid sinuses. Initial biopsy in the emergency room was nondiagnostic due to extensive tumor necrosis. Magnetic resonance imaging (MRI) revealed T2 hypointense enhancing mass centered in the right posterior ethmoids with invasion into the right orbital apex, classifying it as a T4b tumor. The patient underwent repeat biopsy with frozen section and tumor debulking. Immunohistochemical analysis of subsequent biopsy revealed complete loss of INI-1 and negative staining for other pertinent markers, alluding to the diagnosis of SMARCB1-deficient sinonasal tract carcinoma. CONCLUSION Tumor necrosis may be problematic in obtaining a diagnosis for SMARCB1-deficient sinonasal carcinomas. Thus, sampling various regions of the tumor during initial biopsy can prevent delays in diagnosis and treatment.
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Affiliation(s)
- Vanessa Trieu
- 1 Larner College of Medicine at the University of Vermont, Burlington, VT, USA
| | - Ricardo Mario Aulet
- 2 Division of Otolaryngology, University of Vermont Medical Center, Burlington, VT, USA
| | - Allison Ciolino
- 3 Department of Pathology and Laboratory Medicine, University of Vermont Medical Center, Burlington, VT, USA
| | - Tamara Rimash
- 2 Division of Otolaryngology, University of Vermont Medical Center, Burlington, VT, USA
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29
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Wang Y, Chen SY, Colborne S, Lambert G, Shin CY, Santos ND, Orlando KA, Lang JD, Hendricks WPD, Bally MB, Karnezis AN, Hass R, Underhill TM, Morin GB, Trent JM, Weissman BE, Huntsman DG. Histone Deacetylase Inhibitors Synergize with Catalytic Inhibitors of EZH2 to Exhibit Antitumor Activity in Small Cell Carcinoma of the Ovary, Hypercalcemic Type. Mol Cancer Ther 2018; 17:2767-2779. [PMID: 30232145 DOI: 10.1158/1535-7163.mct-18-0348] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 08/13/2018] [Accepted: 09/12/2018] [Indexed: 11/16/2022]
Abstract
Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT) is a rare but extremely lethal malignancy that mainly impacts young women. SCCOHT is characterized by a diploid genome with loss of SMARCA4 and lack of SMARCA2 expression, two mutually exclusive ATPases of the SWI/SNF chromatin-remodeling complex. We and others have identified the histone methyltransferase EZH2 as a promising therapeutic target for SCCOHT, suggesting that SCCOHT cells depend on the alternation of epigenetic pathways for survival. In this study, we found that SCCOHT cells were more sensitive to pan-HDAC inhibitors compared with other ovarian cancer lines or immortalized cell lines tested. Pan-HDAC inhibitors, such as quisinostat, reversed the expression of a group of proteins that were deregulated in SCCOHT cells due to SMARCA4 loss, leading to growth arrest, apoptosis, and differentiation in vitro and suppressed tumor growth of xenografted tumors of SCCOHT cells. Moreover, combined treatment of HDAC inhibitors and EZH2 inhibitors at sublethal doses synergistically induced histone H3K27 acetylation and target gene expression, leading to rapid induction of apoptosis and growth suppression of SCCOHT cells and xenografted tumors. Therefore, our preclinical study highlighted the therapeutic potential of combined treatment of HDAC inhibitors with EZH2 catalytic inhibitors to treat SCCOHT.
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Affiliation(s)
- Yemin Wang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. .,Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Shary Yuting Chen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Shane Colborne
- Michael Smith Genome Science Centre, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - Galen Lambert
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Chae Young Shin
- Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Nancy Dos Santos
- Department of Experimental Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Krystal A Orlando
- Department of Pathology and Laboratory Medicine and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina
| | - Jessica D Lang
- Division of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, Arizona
| | - William P D Hendricks
- Division of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, Arizona
| | - Marcel B Bally
- Department of Experimental Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Anthony N Karnezis
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Ralf Hass
- Department of Obstetrics and Gynecology, Hannover Medical School, D-30625 Hannover, Germany
| | - T Michael Underhill
- Department of Cellular and Physiological Sciences and Biomedical Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Gregg B Morin
- Michael Smith Genome Science Centre, British Columbia Cancer Agency, Vancouver, BC, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Jeffrey M Trent
- Division of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, Arizona
| | - Bernard E Weissman
- Department of Pathology and Laboratory Medicine and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina
| | - David G Huntsman
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. .,Department of Molecular Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada.,Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada
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30
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Chi Y, Fang Z, Hong X, Yao Y, Sun P, Wang G, Du F, Sun Y, Wu Q, Qu G, Wang S, Song J, Yu J, Lu Y, Zhu X, Niu X, He Z, Wang J, Yu H, Cai J. Safety and Efficacy of Anlotinib, a Multikinase Angiogenesis Inhibitor, in Patients with Refractory Metastatic Soft-Tissue Sarcoma. Clin Cancer Res 2018; 24:5233-5238. [PMID: 29895706 DOI: 10.1158/1078-0432.ccr-17-3766] [Citation(s) in RCA: 192] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/22/2018] [Accepted: 06/07/2018] [Indexed: 11/16/2022]
Affiliation(s)
- Yihebali Chi
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhiwei Fang
- Peking University Cancer Hospital, Beijing, China
| | - Xiaonan Hong
- Fudan University Shanghai Cancer Center, Shanghai, China
| | - Yang Yao
- Sixth People's Hospital, Shanghai, China
| | - Ping Sun
- Liaoning Cancer Hospital and Institute, Shenyang, China
| | - Guowen Wang
- Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Feng Du
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), the VIPII Gastrointestinal Cancer Division of Medical Department, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yongkun Sun
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiong Wu
- The first Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Guofan Qu
- Harbin Medical University Cancer Hospital, Harbin, China
| | - Shusen Wang
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jianmin Song
- Gansu Provincial Cancer Hospital, Lanzhou, China
| | - Jianchun Yu
- Peking Union Medical College Hospital, Beijing, China
| | - Yongkui Lu
- Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Xia Zhu
- First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | | | - Zhiyong He
- Fujian Provincial Cancer Hospital, Fuzhou, China
| | - Jinwan Wang
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Yu
- School of Public Health Nanjing Medical University, Nanjing, China
| | - Jianqiang Cai
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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31
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Richer W, Masliah-Planchon J, Clement N, Jimenez I, Maillot L, Gentien D, Albaud B, Chemlali W, Galant C, Larousserie F, Boudou-Rouquette P, Leruste A, Chauvin C, Han ZY, Coindre JM, Varlet P, Freneaux P, Ranchère-Vince D, Delattre O, Bourdeaut F. Embryonic signature distinguishes pediatric and adult rhabdoid tumors from other SMARCB1-deficient cancers. Oncotarget 2018; 8:34245-34257. [PMID: 28427232 PMCID: PMC5470964 DOI: 10.18632/oncotarget.15939] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 02/22/2017] [Indexed: 01/25/2023] Open
Abstract
Extra-cranial rhabdoid tumors (RT) are highly aggressive malignancies of infancy, characterized by undifferentiated histological features and loss of SMARCB1 expression. The diagnosis is all the more challenging that other poorly differentiated cancers lose SMARCB1 expression, such as epithelioid sarcomas (ES), renal medullary carcinomas (RMC) or undifferentiated chordomas (UC). Moreover, late cases occurring in adults are now increasingly reported, raising the question of differential diagnoses and emphasizing nosological issues. To address this issue, we have analyzed the expression profiles of a training set of 32 SMARCB1-deficient tumors (SDT), with ascertained diagnosis of RT (n = 16, all < 5 years of age), ES (n = 8, all > 10 years of age), UC (n = 3) and RMC (n = 5). As compared with other SDT, RT are characterized by an embryonic signature, and up-regulation of key-actors of de novo DNA methylation processes. Using this signature, we then analysed the expression profiling of 37 SDT to infer the appropriate diagnosis. Thirteen adult onset tumors showed strong similarity with pediatric RT, in spite of older age; by exome sequencing, these tumors also showed genomic features indistinguishable from pediatric RT. In contrary, 8 tumors were reclassified within carcinoma, ES or UC categories, while the remaining could not be related to any of those entities. Our results demonstrate that embryonic signature is shared by all RT, whatever the age at diagnosis; they also illustrate that many adult-onset SDT of ambiguous histological diagnosis are clearly different from RT. Finally, our study paves the way for the routine use of expression-based signatures to give accurate diagnosis of SDT.
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Affiliation(s)
- Wilfrid Richer
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France
| | - Julien Masliah-Planchon
- Paris-Sciences-Lettres, Institut Curie Hospital, Laboratory of Somatic Genetics, 75248 Paris Cedex 5, France
| | - Nathalie Clement
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France
| | - Irene Jimenez
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France.,Paris-Sciences-Lettres, Institut Curie Hospital, Department of Pediatric Oncology- Adolescents and Young Adults, 75248 Paris Cedex 5, France
| | - Laetitia Maillot
- Paris-Sciences-Lettres, Institut Curie Hospital, Laboratory of Somatic Genetics, 75248 Paris Cedex 5, France
| | - David Gentien
- Paris-Sciences-Lettres, Institut Curie Research Center, Department of Translational Research, Genomic Platform, 75248 Paris Cedex 5, France
| | - Benoît Albaud
- Paris-Sciences-Lettres, Institut Curie Research Center, Department of Translational Research, Genomic Platform, 75248 Paris Cedex 5, France
| | - Walid Chemlali
- Paris-Sciences-Lettres, Institut Curie Hospital, Laboratory of Somatic Genetics, 75248 Paris Cedex 5, France
| | - Christine Galant
- University Hospital of Leuven, Department of Pathology, 10-1200 Brussel-Belgium
| | - Frederique Larousserie
- Cochin University Hospital, Universite Rene Descartes, Sorbonne Paris Cite, Assistance Publique Hôpitaux de Paris, Department of Pathology, 75014 Paris, France
| | - Pascaline Boudou-Rouquette
- Cochin University Hospital, Assistance Publique Hôpitaux de Paris, Department of Oncology, 75014 Paris, France
| | - Amaury Leruste
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France
| | - Celine Chauvin
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France
| | - Zhi Yan Han
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France
| | | | | | - Paul Freneaux
- Paris-Sciences-Lettres, Institut Curie Hospital, Department of Pathology, 75248 Paris Cedex 5, France
| | | | - Olivier Delattre
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France.,Paris-Sciences-Lettres, Institut Curie Hospital, Laboratory of Somatic Genetics, 75248 Paris Cedex 5, France
| | - Franck Bourdeaut
- Paris-Sciences-Lettres, Institut Curie Research Center, INSERMU830 & SiRIC, Laboratory of Translational Research in Pediatric Oncology, 75248 Paris Cedex 5, France.,Paris-Sciences-Lettres, Institut Curie Hospital, Department of Pediatric Oncology- Adolescents and Young Adults, 75248 Paris Cedex 5, France
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32
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McBride MJ, Kadoch C. Disruption of mammalian SWI/SNF and polycomb complexes in human sarcomas: mechanisms and therapeutic opportunities. J Pathol 2018; 244:638-649. [PMID: 29359803 DOI: 10.1002/path.5042] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 01/01/2023]
Abstract
Soft-tissue sarcomas are increasingly characterized and subclassified by genetic abnormalities that represent underlying drivers of their pathology. Hallmark tumor suppressor gene mutations and pathognomonic gene fusions collectively account for approximately one-third of all sarcomas. These genetic abnormalities most often result in global transcriptional misregulation via disruption of protein regulatory complexes which govern chromatin architecture. Specifically, alterations to mammalian SWI/SNF (mSWI/SNF or BAF) ATP-dependent chromatin remodeling complexes and polycomb repressive complexes cause disease-specific changes in chromatin architecture and gene expression across a number of sarcoma subtypes. Understanding the functions of chromatin regulatory complexes and the mechanisms underpinning their roles in oncogenesis will be required for the design and development of new therapeutic strategies in sarcomas. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Matthew J McBride
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Chemical Biology Program, Harvard University, Cambridge, MA, USA
| | - Cigall Kadoch
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
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33
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Dancsok AR, Asleh-Aburaya K, Nielsen TO. Advances in sarcoma diagnostics and treatment. Oncotarget 2018; 8:7068-7093. [PMID: 27732970 PMCID: PMC5351692 DOI: 10.18632/oncotarget.12548] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/29/2016] [Indexed: 01/06/2023] Open
Abstract
The heterogeneity of sarcomas with regard to molecular genesis, histology, clinical characteristics, and response to treatment makes management of these rare yet diverse neoplasms particularly challenging. This review encompasses recent developments in sarcoma diagnostics and treatment, including cytotoxic, targeted, epigenetic, and immune therapy agents. In the past year, groups internationally explored the impact of adding mandatory molecular testing to histological diagnosis, reporting some changes in diagnosis and/or management; however, the impact on outcomes could not be adequately assessed. Transcriptome sequencing techniques have brought forward new diagnostic tools for identifying fusions and/or characterizing unclassified entities. Next-generation sequencing and advanced molecular techniques were also applied to identify potential targets for directed and epigenetic therapy, where preclinical studies reported results for agents active within the receptor tyrosine kinase, mTOR, Notch, Wnt, Hedgehog, Hsp90, and MDM2 signaling networks. At the level of clinical practice, modest developments were seen for some sarcoma subtypes in conventional chemotherapy and in therapies targeting the pathways activated by various receptor tyrosine kinases. In the burgeoning field of immune therapy, sarcoma work is in its infancy; however, elaborate protocols for immune stimulation are being explored, and checkpoint blockade agents advance from preclinical models to clinical studies.
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Affiliation(s)
- Amanda R Dancsok
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Karama Asleh-Aburaya
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Torsten O Nielsen
- Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Sarcoma Disease Site Committee, Canadian Cancer Trials Group
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34
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Veenstra R, Kostine M, Cleton-Jansen AM, de Miranda NF, Bovée JV. Immune checkpoint inhibitors in sarcomas: in quest of predictive biomarkers. J Transl Med 2018; 98:41-50. [PMID: 29155424 DOI: 10.1038/labinvest.2017.128] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/21/2017] [Accepted: 09/24/2017] [Indexed: 12/14/2022] Open
Abstract
Sarcomas are a rare group of tumors of mesenchymal origin. Metastatic sarcomas are often difficult to treat and unresponsive to standard radio- and chemotherapy, resulting in a poor survival rate for patients. Novel treatments with immune checkpoint inhibitors have been proven to prolong survival of patients with a variety of cancers, including metastatic melanoma, lung, and renal cell carcinoma. Since immune checkpoint inhibitors could provide a novel treatment option for patients with sarcomas, clinical trials investigating their efficacy in these group of tumors are ongoing. However, the discrimination of patients that are the most likely to respond to these treatments is still an obstacle in the design of clinical trials. In this review, we provide a brief overview of the mechanisms of action of immune checkpoint inhibitors and discuss the proposed biomarkers of therapy response, such as lymphocytic infiltration, intratumoral PD-L1 expression, and mutational load in sarcomas.
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Affiliation(s)
- Robin Veenstra
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marie Kostine
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Noel Fcc de Miranda
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Judith Vmg Bovée
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
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35
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Nakayama RT, Pulice JL, Valencia AM, McBride MJ, McKenzie ZM, Gillespie MA, Ku WL, Teng M, Cui K, Williams RT, Cassel SH, Qing H, Widmer CJ, Demetri GD, Irizarry RA, Zhao K, Ranish JA, Kadoch C. SMARCB1 is required for widespread BAF complex-mediated activation of enhancers and bivalent promoters. Nat Genet 2017; 49:1613-1623. [PMID: 28945250 PMCID: PMC5803080 DOI: 10.1038/ng.3958] [Citation(s) in RCA: 179] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 08/29/2017] [Indexed: 12/15/2022]
Abstract
Perturbations to mammalian SWI/SNF (BAF) complexes contribute to over 20% of human cancers, with driving roles first identified in malignant rhabdoid tumor (MRT), an aggressive pediatric cancer characterized by biallelic inactivation of the core BAF complex subunit SMARCB1 (BAF47). However, the mechanism by which this alteration contributes to tumorigenesis remains poorly understood. We find that BAF47 loss destabilizes BAF complexes on chromatin, absent significant changes in intra-complex integrity. Rescue of BAF47 in BAF47-deficient sarcoma cell lines results in increased genome-wide BAF complex occupancy, facilitating widespread enhancer activation and opposition of polycomb-mediated repression at bivalent promoters. We demonstrate differential regulation by BAF and PBAF complexes at enhancers and promoters, respectively, suggesting distinct functions of each complex which are perturbed upon BAF47 loss. Our results demonstrate collaborative mechanisms of mSWI/SNF-mediated gene activation, identifying functions that are coopted or abated to drive human cancers and developmental disorders.
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Affiliation(s)
- Robert T Nakayama
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Ludwig Center at Dana-Farber/Harvard and Center for Sarcoma and Bone Oncology, Department of Medical Oncology, Harvard Medical School, Boston, Massachusetts, USA
| | - John L Pulice
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Alfredo M Valencia
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Program in Chemical Biology, Harvard University, Cambridge, Massachusetts, USA
| | - Matthew J McBride
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Program in Chemical Biology, Harvard University, Cambridge, Massachusetts, USA
| | - Zachary M McKenzie
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Wai Lim Ku
- Systems Biology Center, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | - Mingxiang Teng
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Kairong Cui
- Systems Biology Center, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | - Robert T Williams
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - Seth H Cassel
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Medical Scientist Training Program, Harvard Medical School, Boston, Massachusetts, USA
| | - He Qing
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - Christian J Widmer
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - George D Demetri
- Ludwig Center at Dana-Farber/Harvard and Center for Sarcoma and Bone Oncology, Department of Medical Oncology, Harvard Medical School, Boston, Massachusetts, USA
| | - Rafael A Irizarry
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Keji Zhao
- Systems Biology Center, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Cigall Kadoch
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
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36
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37
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Kohashi K, Oda Y. Oncogenic roles of SMARCB1/INI1 and its deficient tumors. Cancer Sci 2017; 108:547-552. [PMID: 28109176 PMCID: PMC5406539 DOI: 10.1111/cas.13173] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 01/05/2017] [Accepted: 01/07/2017] [Indexed: 12/11/2022] Open
Abstract
SMARCB1/INI1 is one of the core subunit proteins of the ATP-dependent SWI/SNF chromatin remodeling complex, and is identified as a potent and bona fide tumor suppressor. Interactions have been demonstrated between SMARCB1/INI1 and key proteins in various pathways related to tumor proliferation and progression: the p16-RB pathway, WNT signaling pathway, sonic hedgehog signaling pathway and Polycomb pathway. Initially, no detectable SMARCB1/INI1 protein expression was found in malignant rhabdoid tumor cells, whereas all other kinds of tumor cells and non-tumorous tissue showed SMARCB1/INI1 protein expression. Therefore, immunohistochemical testing for the SMARCB1/INI1 antibody has been considered useful in confirming the histologic diagnosis of malignant rhabdoid tumors. However, recently, aberrant expression of SMARCB1/INI1 has been found in various tumors such as epithelioid sarcomas, schwannomatosis, synovial sarcomas, and so on. In addition, it has been reported that aberrant expression can be classified into three patterns: complete loss, mosaic expression and reduced expression. Although the various pathways related to mechanisms of tumorigenesis and tumor proliferation are complexly intertwined, the clarification of these mechanisms may contribute to therapeutic strategies in SMARCB1/INI1-deficient tumors. In terms of pathological classifications, SMARCB1/INI1-deficient tumors may be re-classified by genetic backgrounds.
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Affiliation(s)
- Kenichi Kohashi
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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38
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Morel D, Almouzni G, Soria JC, Postel-Vinay S. Targeting chromatin defects in selected solid tumors based on oncogene addiction, synthetic lethality and epigenetic antagonism. Ann Oncol 2017; 28:254-269. [DOI: 10.1093/annonc/mdw552] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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39
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Huang SC, Zhang L, Sung YS, Chen CL, Kao YC, Agaram NP, Antonescu CR. Secondary EWSR1 gene abnormalities in SMARCB1-deficient tumors with 22q11-12 regional deletions: Potential pitfalls in interpreting EWSR1 FISH results. Genes Chromosomes Cancer 2016; 55:767-76. [PMID: 27218413 DOI: 10.1002/gcc.22376] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/18/2016] [Accepted: 05/20/2016] [Indexed: 02/02/2023] Open
Abstract
SMARCB1 inactivation occurs in a variety of tumors, being caused by various genetic mechanisms. Since SMARCB1 and EWSR1 genes are located close to each other on chromosome 22, larger SMARCB1 deletions may encompass the EWSR1 locus. Herein, we report four cases with SMARCB1-deletions showing concurrent EWSR1 gene abnormalities by FISH, which lead initially to misinterpretations as EWSR1-rearranged tumors. Our study group included various morphologies: a poorly differentiated chordoma, an extrarenal rhabdoid tumor, a myoepithelial carcinoma, and a proximal-type epithelioid sarcoma. All cases showed loss of SMARCB1 (INI1) by immunohistochemistry (IHC) and displayed characteristic histologic features for the diagnoses. The SMARCB1 FISH revealed homozygous or heterozygous deletions in three and one case, respectively. The co-hybridized EWSR1 probes demonstrated either unbalanced split signals or heterozygous deletion in two cases each. The former suggested bona fide rearrangement, while the latter resembled an unbalanced translocation. However, all the FISH patterns were quite complex and distinct from the simple and uniform split signals seen in typical EWSR1 rearrangements. We conclude that in the context of 22q11-12 regional alterations present in SMARCB1-deleted tumors, simultaneous EWSR1 involvement may be misinterpreted as equivalent to EWSR1 rearrangement. A detailed clinicopathologic correlation and supplementing the EWSR1 FISH assay with complementary methodology is mandatory for correct diagnosis. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Shih-Chiang Huang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Lei Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Yun-Shao Sung
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Chun-Liang Chen
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Yu-Chien Kao
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Pathology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Narasimhan P Agaram
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
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40
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Sápi Z, Papp G, Szendrői M, Pápai Z, Plótár V, Krausz T, Fletcher CDM. Epigenetic regulation of SMARCB1 By miR-206, -381 and -671-5p is evident in a variety of SMARCB1 immunonegative soft tissue sarcomas, while miR-765 appears specific for epithelioid sarcoma. A miRNA study of 223 soft tissue sarcomas. Genes Chromosomes Cancer 2016; 55:786-802. [PMID: 27223121 DOI: 10.1002/gcc.22379] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/13/2016] [Accepted: 04/13/2016] [Indexed: 01/06/2023] Open
Abstract
Complete/partial loss of SMARCB1 nuclear-immunopositivity is characteristic of a certain subset of soft tissue sarcomas (STSs). Our previous work showed that oncomiRs-206,-381, and 671-5p could silence the SMARCB1 mRNA and protein expression and that they display significant overexpression in epithelioid sarcomas (ESs). MiR-765 was overexpressed too, but functionally was inactive in the silencing. In the current work, using quantitative PCR, we conducted a miRNA study of 51 ESs, 20 rhabdoid tumors (RTs), 20 synovial sarcomas (SSs), 15 malignant peripheral nerve sheath tumors (MPNSTs), 11 myoepithelial carcinomas (MECs), and 10 extraskeletal myxoid chondrosarcomas (EMCSs) with complete/partial loss of SMARCB1 nuclear immunostain, in contrast to controls (SMARCB1-immunopositive) of 96 STSs, 13 melanomas and 10 sarcomatoid carcinomas. The SMARCB1 genetic status of ESs was determined by MLPA and FISH. A subset of ESs (5/51) showed biallelic deletion of SMARCB1 with no overexpression of any miRNA, suggesting these tumors could be the counterpart of pediatric RT, at least genetically. Another subset (5/51) was genetically either intact or monoallelic deleted with at least threefold overexpression of one of miR-206,-381,-671-5p, suggesting epigenetic regulation only. 39/51 ESs had a biallelic deletion (>20% by FISH and/or by MLPA) but with overexpressed miR-206,-381, and 671-5p, suggesting intratumoral heterogeneity, i.e., both genetic and epigenetic regulation. At least threefold overexpression of one of miR-206,-381, and 671-5p was detected in all MPNSTs, EMCSs, SSs and 7 MCs. Except for ESs, four SSs and one MPNST, there was no event above threefold overexpression of miR-765 among all 195 tested tumors. Our results suggest a general role of miR-206,-381, and 671-5p in SMARCB1 gene silencing of ES, MC, EMCS, MPNST and SS. In the future, miR-765 could possibly be a diagnostic tool for ES because of its 97% specificity and 80% sensitivity. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Zoltán Sápi
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Gergő Papp
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Miklós Szendrői
- Department of Orthopedics, Semmelweis University, Budapest, Hungary
| | | | - Vanda Plótár
- Surgical and Molecular Tumor Pathology Centre, National Institute of Oncology, Budapest, Hungary
| | - Thomas Krausz
- Department of Pathology, University of Chicago Medicine, Chicago, IL
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Pulice JL, Kadoch C. Composition and Function of Mammalian SWI/SNF Chromatin Remodeling Complexes in Human Disease. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2016; 81:53-60. [PMID: 28408647 DOI: 10.1101/sqb.2016.81.031021] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Mammalian SWI/SNF (BAF) chromatin remodeling complexes play critical roles in maintaining chromatin architecture and gene expression. Genomic sequencing efforts over the past several years have unveiled a major role for these complexes in the development of human cancer as well as neurologic disease, prompting the need to interrogate underlying mechanisms and to develop new methods to comprehensively understand mSWI/SNF complex function. Here we discuss the emerging insights from genetic, biochemical, and functional genomic studies in the field and suggest approaches toward further basic investigations, as well as therapeutic targeting of chromatin remodeling machinery.
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Affiliation(s)
- John L Pulice
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts 02215
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142
| | - Cigall Kadoch
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts 02215
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142
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