1
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Parker K, Zhang Y, Anchondo G, Smith A, Guerrero Pacheco S, Kondo T, Su L. Combination of HDAC and FYN inhibitors in synovial sarcoma treatment. Front Cell Dev Biol 2024; 12:1422452. [PMID: 39045458 PMCID: PMC11264242 DOI: 10.3389/fcell.2024.1422452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/17/2024] [Indexed: 07/25/2024] Open
Abstract
The SS18-SSX fusion protein is an oncogenic driver in synovial sarcoma. At the molecular level, SS18-SSX functions as both an activator and a repressor to coordinate transcription of different genes responsible for tumorigenesis. Here, we identify the proto-oncogene FYN as a new SS18-SSX target gene and examine its relation to synovial sarcoma therapy. FYN is a tyrosine kinase that promotes cancer growth, metastasis and therapeutic resistance, but SS18-SSX appears to negatively regulate FYN expression in synovial sarcoma cells. Using both genetic and histone deacetylase inhibitor (HDACi)-based pharmacologic approaches, we show that suppression of SS18-SSX leads to FYN reactivation. In support of this notion, we find that blockade of FYN activity synergistically enhances HDACi action to reduce synovial sarcoma cell proliferation and migration. Our results support a role for FYN in attenuation of anti-cancer activity upon inhibition of SS18-SSX function and demonstrate the feasibility of targeting FYN to improve the effectiveness of HDACi treatment against synovial sarcoma.
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Affiliation(s)
- Kyra Parker
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | - Yanfeng Zhang
- Department of Genetics, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Gavin Anchondo
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | - Ashlyn Smith
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | | | | | - Le Su
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
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2
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Mukherjee S, Mukherjee SB, Frenkel-Morgenstern M. Functional and regulatory impact of chimeric RNAs in human normal and cancer cells. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1777. [PMID: 36633099 DOI: 10.1002/wrna.1777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 01/13/2023]
Abstract
Fusions of two genes can lead to the generation of chimeric RNAs, which may have a distinct functional role from their original molecules. Chimeric RNAs could encode novel functional proteins or serve as novel long noncoding RNAs (lncRNAs). The appearance of chimeric RNAs in a cell could help to generate new functionality and phenotypic diversity that might facilitate this cell to survive against new environmental stress. Several recent studies have demonstrated the functional roles of various chimeric RNAs in cancer progression and are considered as biomarkers for cancer diagnosis and sometimes even drug targets. Further, the growing evidence demonstrated the potential functional association of chimeric RNAs with cancer heterogeneity and drug resistance cancer evolution. Recent studies highlighted that chimeric RNAs also have functional potentiality in normal physiological processes. Several functionally potential chimeric RNAs were discovered in human cancer and normal cells in the last two decades. This could indicate that chimeric RNAs are the hidden layer of the human transcriptome that should be explored from the functional insights to better understand the functional evolution of the genome and disease development that could facilitate clinical practice improvements. This review summarizes the current knowledge of chimeric RNAs and highlights their functional, regulatory, and evolutionary impact on different cancers and normal physiological processes. Further, we will discuss the potential functional roles of a recently discovered novel class of chimeric RNAs named sense-antisense/cross-strand chimeric RNAs generated by the fusion of the bi-directional transcripts of the same gene. This article is categorized under: Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs.
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Affiliation(s)
- Sumit Mukherjee
- Cancer Genomics and BioComputing of Complex Diseases Lab, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- Department of Computer Science, Ben-Gurion University, Beer-Sheva, Israel
- Cancer Data Science Laboratory (CDSL), National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Sunanda Biswas Mukherjee
- Cancer Genomics and BioComputing of Complex Diseases Lab, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Milana Frenkel-Morgenstern
- Cancer Genomics and BioComputing of Complex Diseases Lab, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
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3
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Ferdous Z, Clément JE, Gong JP, Tanaka S, Komatsuzaki T, Tsuda M. Geometrical analysis identified morphological features of hydrogel-induced cancer stem cells in synovial sarcoma model cells. Biochem Biophys Res Commun 2023; 642:41-49. [PMID: 36549099 DOI: 10.1016/j.bbrc.2022.12.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Cancer stem cells (CSCs) has been a key target to cure cancer patients completely. Although many CSC markers have been identified, they are frequently cancer type-specific and those expressions are occasionally variable, which becomes an obstacle to elucidate the characteristics of the CSCs. Here we scrutinized the relationship between stemness elevation and geometrical features of single cells. The PAMPS hydrogel was utilized to create the CSCs from mouse myoblast C2C12 and its synovial sarcoma model cells. qRT-PCR analysis confirmed the significant increase in expression levels of Sox2, Nanog, and Oct3/4 on the PAMPS gel, which was higher in the synovial sarcoma model cells. Of note, the morphological heterogeneity was appeared on the PAMPS gel, mainly including flat spreading, elongated spindle, and small round cells, and the Sox2 expression was highest in the small round cells. To examine the role of morphological differences in the elevation of stemness, over 6,400 cells were segmented along with the Sox2 intensity, and 12 geometrical features were extracted at single cell level. A nonlinear mapping of the geometrical features by using uniform manifold approximation and projection (UMAP) clearly revealed the existence of relationship between morphological differences and the stemness elevation, especially for C2C12 and its synovial sarcoma model on the PAMPS gel in which the small round cells possess relatively high Sox2 expression on the PAMPS gel, which supports the strong relationship between morphological changes and the stemness elevation. Taken together, these geometrical features can be useful for morphological profiling of CSCs to classify and distinguish them for understanding of their role in disease progression and drug discovery.
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Affiliation(s)
- Zannatul Ferdous
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan; Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Jean-Emmanuel Clément
- Research Center of Mathematics for Social Creativity, Research Institute for Electronic Science, Hokkaido University, Sapporo, Japan; World Premier International Research Center Initiative, Institute for Chemical Reaction, Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan
| | - Jian Ping Gong
- World Premier International Research Center Initiative, Institute for Chemical Reaction, Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan; Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan; World Premier International Research Center Initiative, Institute for Chemical Reaction, Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan
| | - Tamiki Komatsuzaki
- Research Center of Mathematics for Social Creativity, Research Institute for Electronic Science, Hokkaido University, Sapporo, Japan; World Premier International Research Center Initiative, Institute for Chemical Reaction, Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan; Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
| | - Masumi Tsuda
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan; Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Sapporo, Japan; World Premier International Research Center Initiative, Institute for Chemical Reaction, Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Japan.
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4
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Brashears CB, Prudner BC, Rathore R, Caldwell KE, Dehner CA, Buchanan JL, Lange SE, Poulin N, Sehn JK, Roszik J, Spitzer D, Jones KB, O'Keefe R, Nielsen TO, Taylor EB, Held JM, Hawkins W, Van Tine BA. Malic Enzyme 1 Absence in Synovial Sarcoma Shifts Antioxidant System Dependence and Increases Sensitivity to Ferroptosis Induction with ACXT-3102. Clin Cancer Res 2022; 28:3573-3589. [PMID: 35421237 PMCID: PMC9378556 DOI: 10.1158/1078-0432.ccr-22-0470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/29/2022] [Accepted: 04/12/2022] [Indexed: 01/09/2023]
Abstract
PURPOSE To investigate the metabolism of synovial sarcoma (SS) and elucidate the effect of malic enzyme 1 absence on SS redox homeostasis. EXPERIMENTAL DESIGN ME1 expression was measured in SS clinical samples, SS cell lines, and tumors from an SS mouse model. The effect of ME1 absence on glucose metabolism was evaluated utilizing Seahorse assays, metabolomics, and C13 tracings. The impact of ME1 absence on SS redox homeostasis was evaluated by metabolomics, cell death assays with inhibitors of antioxidant systems, and measurements of intracellular reactive oxygen species (ROS). The susceptibility of ME1-null SS to ferroptosis induction was interrogated in vitro and in vivo. RESULTS ME1 absence in SS was confirmed in clinical samples, SS cell lines, and an SS tumor model. Investigation of SS glucose metabolism revealed that ME1-null cells exhibit higher rates of glycolysis and higher flux of glucose into the pentose phosphate pathway (PPP), which is necessary to produce NADPH. Evaluation of cellular redox homeostasis demonstrated that ME1 absence shifts dependence from the glutathione system to the thioredoxin system. Concomitantly, ME1 absence drives the accumulation of ROS and labile iron. ROS and iron accumulation enhances the susceptibility of ME1-null cells to ferroptosis induction with inhibitors of xCT (erastin and ACXT-3102). In vivo xenograft models of ME1-null SS demonstrate significantly increased tumor response to ACXT-3102 compared with ME1-expressing controls. CONCLUSIONS These findings demonstrate the translational potential of targeting redox homeostasis in ME1-null cancers and establish the preclinical rationale for a phase I trial of ACXT-3102 in SS patients. See related commentary by Subbiah and Gan, p. 3408.
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Affiliation(s)
- Caitlyn B. Brashears
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri
| | - Bethany C. Prudner
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri
| | - Richa Rathore
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri
| | - Katharine E. Caldwell
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| | - Carina A. Dehner
- Department of Pathology and Immunology, Division of Anatomic and Molecular Pathology, Washington University in St. Louis, St. Louis, Missouri
| | - Jane L. Buchanan
- Department of Molecular Physiology and Biophysics, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Sara E.S. Lange
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri
| | - Neal Poulin
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jennifer K. Sehn
- Department of Pathology and Immunology, Division of Anatomic and Molecular Pathology, Washington University in St. Louis, St. Louis, Missouri
| | - Jason Roszik
- Departments of Melanoma Medical Oncology and Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dirk Spitzer
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, Missouri.,Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri
| | - 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
| | - Regis O'Keefe
- Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri.,Department of Orthopedics, Washington University in St. Louis, St. Louis, Missouri
| | - Torsten O. Nielsen
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Eric B. Taylor
- Department of Molecular Physiology and Biophysics, Carver College of Medicine, University of Iowa, Iowa City, Iowa.,Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa.,Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, Iowa
| | - Jason M. Held
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri.,Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri.,Department of Anesthesiology, Washington University in St. Louis, St. Louis, Missouri
| | - William Hawkins
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, Missouri.,Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri
| | - Brian A. Van Tine
- Division of Medical Oncology, Washington University in St. Louis, St. Louis, Missouri.,Siteman Cancer Center, Washington University in St. Louis, St. Louis, Missouri.,Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri.,Corresponding Author: Brian A. Van Tine, Division of Medical Oncology, Washington University in St. Louis, 660 South Euclid, Campus Box 8007, St. Louis, MO 63110. Phone: 314-747-3096: E-mail:
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5
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Lanzi C, Cassinelli G. Combinatorial strategies to potentiate the efficacy of HDAC inhibitors in fusion-positive sarcomas. Biochem Pharmacol 2022; 198:114944. [DOI: 10.1016/j.bcp.2022.114944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/02/2022] [Accepted: 02/02/2022] [Indexed: 12/12/2022]
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Lanzi C, Favini E, Dal Bo L, Tortoreto M, Arrighetti N, Zaffaroni N, Cassinelli G. Upregulation of ERK-EGR1-heparanase axis by HDAC inhibitors provides targets for rational therapeutic intervention in synovial sarcoma. J Exp Clin Cancer Res 2021; 40:381. [PMID: 34857011 PMCID: PMC8638516 DOI: 10.1186/s13046-021-02150-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Synovial sarcoma (SS) is an aggressive soft tissue tumor with limited therapeutic options in advanced stage. SS18-SSX fusion oncogenes, which are the hallmarks of SS, cause epigenetic rewiring involving histone deacetylases (HDACs). Promising preclinical studies supporting HDAC targeting for SS treatment were not reflected in clinical trials with HDAC inhibitor (HDACi) monotherapies. We investigated pathways implicated in SS cell response to HDACi to identify vulnerabilities exploitable in combination treatments and improve the therapeutic efficacy of HDACi-based regimens. METHODS Antiproliferative and proapoptotic effects of the HDACi SAHA and FK228 were examined in SS cell lines in parallel with biochemical and molecular analyses to bring out cytoprotective pathways. Treatments combining HDACi with drugs targeting HDACi-activated prosurvival pathways were tested in functional assays in vitro and in a SS orthotopic xenograft model. Molecular mechanisms underlying synergisms were investigated in SS cells through pharmacological and gene silencing approaches and validated by qRT-PCR and Western blotting. RESULTS SS cell response to HDACi was consistently characterized by activation of a cytoprotective and auto-sustaining axis involving ERKs, EGR1, and the β-endoglycosidase heparanase, a well recognized pleiotropic player in tumorigenesis and disease progression. HDAC inhibition was shown to upregulate heparanase by inducing expression of the positive regulator EGR1 and by hampering negative regulation by p53 through its acetylation. Interception of HDACi-induced ERK-EGR1-heparanase pathway by cell co-treatment with a MEK inhibitor (trametinib) or a heparanase inhibitor (SST0001/roneparstat) enhanced antiproliferative and pro-apoptotic effects. HDAC and heparanase inhibitors had opposite effects on histone acetylation and nuclear heparanase levels. The combination of SAHA with SST0001 prevented the upregulation of ERK-EGR1-heparanase induced by the HDACi and promoted caspase-dependent cell death. In vivo, the combined treatment with SAHA and SST0001 potentiated the antitumor efficacy against the CME-1 orthotopic SS model as compared to single agent administration. CONCLUSIONS The present study provides preclinical rationale and mechanistic insights into drug combinatory strategies based on the use of ERK pathway and heparanase inhibitors to improve the efficacy of HDACi-based antitumor therapies in SS. The involvement of classes of agents already clinically available, or under clinical evaluation, indicates the transferability potential of the proposed approaches.
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Affiliation(s)
- Cinzia Lanzi
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Enrica Favini
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Laura Dal Bo
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Monica Tortoreto
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Noemi Arrighetti
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Nadia Zaffaroni
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy
| | - Giuliana Cassinelli
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133, Milan, Italy.
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7
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Fiore M, Sambri A, Spinnato P, Zucchini R, Giannini C, Caldari E, Pirini MG, De Paolis M. The Biology of Synovial Sarcoma: State-of-the-Art and Future Perspectives. Curr Treat Options Oncol 2021; 22:109. [PMID: 34687366 PMCID: PMC8541977 DOI: 10.1007/s11864-021-00914-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2021] [Indexed: 12/22/2022]
Abstract
New molecular insights are being achieved in synovial sarcoma (SS) that can provide new potential diagnostic and prognostic markers as well as therapeutic targets. In particular, the advancement of research on epigenomics and gene regulation is promising. The concrete hypothesis that the pathogenesis of SS might mainly depend on the disruption of the balance of the complex interaction between epigenomic regulatory complexes and the consequences on gene expression opens interesting new perspectives. The standard of care for primary SS is wide surgical resection combined with radiation in selected cases. The role of chemotherapy is still under refinement and can be considered in patients at high risk of metastasis or in those with advanced disease. Cytotoxic chemotherapy (anthracyclines, ifosfamide, trabectedin, and pazopanib) is the treatment of choice, despite several possible side effects. Many possible drug-able targets have been identified. However, the impact of these strategies in improving SS outcome is still limited, thus making current and future research strongly needed to improve the survival of patients with SS.
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Affiliation(s)
- Michele Fiore
- Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Andrea Sambri
- Alma Mater Studiorum - University of Bologna, Bologna, Italy. .,IRCCS Azienda Ospedaliero Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy.
| | | | | | | | - Emilia Caldari
- IRCCS Azienda Ospedaliero Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Maria Giulia Pirini
- IRCCS Azienda Ospedaliero Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Massimiliano De Paolis
- IRCCS Azienda Ospedaliero Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
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8
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Primary gastric synovial sarcoma resected by laparoscopic endoscopic cooperative surgery of the stomach: a case report. Surg Case Rep 2021; 7:225. [PMID: 34669095 PMCID: PMC8528932 DOI: 10.1186/s40792-021-01310-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/12/2021] [Indexed: 11/10/2022] Open
Abstract
Background Primary gastric synovial sarcoma is extremely rare, only 44 cases have been reported so far, and there have been no reports of laparoscopic endoscopic cooperative surgery for this condition. Case presentation A 45-year-old male patient presented with gastric pain. Esophagogastroduodenoscopy was performed that led to the identification of an 8-mm submucosal tumor in the anterior wall of the antrum, and a kit-negative gastrointestinal stromal tumor was suspected following biopsy. On endoscopic ultrasonography, the boundary of the tumor, mainly composed of the second layer, was depicted as a slightly unclear low-echo region, and a pointless no echo region was scattered inside. A boring biopsy revealed synovial sarcoma. Positron emission tomography did not reveal fluorodeoxyglucose (18F-FDG) accumulation in the stomach or other organs. Thus, the patient was diagnosed with a primary gastric synovial sarcoma, and laparoscopic endoscopic cooperative surgery was performed. The tumor of the antrum could not be confirmed laparoscopically from the serosa, and under intraoperative endoscopy, it had delle on the mucosal surface, which was removed by a method that does not involve releasing the gastric wall. Immunohistochemistry showed that the spindle cells were positive for EMA, BCL-2 protein, TLE-1, and SS18-SSX fusion-specific antibodies but negative for KIT and DOG-1. The final pathological diagnosis was synovial sarcoma of the stomach. The postoperative course was good, and the patient was discharged from the hospital on the 11th postoperative day. Conclusion Resection with laparoscopic endoscopic cooperative surgery (LECS), which has not been reported before, was effective for small synovial sarcomas that could not be confirmed laparoscopically. With the combination of laparoscopic and endoscopic approaches to neoplasia with a non-exposure technique (CLEAN-NET) procedure, it was possible to excise the tumor with the minimum excision range of the gastric serosa without opening the stomach. Supplementary Information The online version contains supplementary material available at 10.1186/s40792-021-01310-8.
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9
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Mukherjee S, Heng HH, Frenkel-Morgenstern M. Emerging Role of Chimeric RNAs in Cell Plasticity and Adaptive Evolution of Cancer Cells. Cancers (Basel) 2021; 13:4328. [PMID: 34503137 PMCID: PMC8431553 DOI: 10.3390/cancers13174328] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Gene fusions can give rise to somatic alterations in cancers. Fusion genes have the potential to create chimeric RNAs, which can generate the phenotypic diversity of cancer cells, and could be associated with novel molecular functions related to cancer cell survival and proliferation. The expression of chimeric RNAs in cancer cells might impact diverse cancer-related functions, including loss of apoptosis and cancer cell plasticity, and promote oncogenesis. Due to their recurrence in cancers and functional association with oncogenic processes, chimeric RNAs are considered biomarkers for cancer diagnosis. Several recent studies demonstrated that chimeric RNAs could lead to the generation of new functionality for the resistance of cancer cells against drug therapy. Therefore, targeting chimeric RNAs in drug resistance cancer could be useful for developing precision medicine. So, understanding the functional impact of chimeric RNAs in cancer cells from an evolutionary perspective will be helpful to elucidate cancer evolution, which could provide a new insight to design more effective therapies for cancer patients in a personalized manner.
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Affiliation(s)
- Sumit Mukherjee
- Cancer Genomics and BioComputing of Complex Diseases Lab, Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel;
| | - Henry H. Heng
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI 48201, USA;
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Milana Frenkel-Morgenstern
- Cancer Genomics and BioComputing of Complex Diseases Lab, Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel;
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10
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Unraveling the IGF System Interactome in Sarcomas Exploits Novel Therapeutic Options. Cells 2021; 10:cells10082075. [PMID: 34440844 PMCID: PMC8392407 DOI: 10.3390/cells10082075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 12/15/2022] Open
Abstract
Aberrant bioactivity of the insulin-like growth factor (IGF) system results in the development and progression of several pathologic conditions including cancer. Preclinical studies have shown promising anti-cancer therapeutic potentials for anti-IGF targeted therapies. However, a clear but limited clinical benefit was observed only in a minority of patients with sarcomas. The molecular complexity of the IGF system, which comprises multiple regulators and interactions with other cancer-related pathways, poses a major limitation in the use of anti-IGF agents and supports the need of combinatorial therapeutic strategies to better tackle this axis. In this review, we will initially highlight multiple mechanisms underlying IGF dysregulation in cancer and then focus on the impact of the IGF system and its complexity in sarcoma development and progression as well as response to anti-IGF therapies. We will also discuss the role of Ephrin receptors, Hippo pathway, BET proteins and CXCR4 signaling, as mediators of sarcoma malignancy and relevant interactors with the IGF system in tumor cells. A deeper understanding of these molecular interactions might provide the rationale for novel and more effective therapeutic combinations to treat sarcomas.
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11
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Hickson M, McHugh K, McCarville B. Primary synovial sarcomas in the paediatric and young adult population: A pictorial review. Eur J Radiol 2020; 133:109376. [PMID: 33166832 DOI: 10.1016/j.ejrad.2020.109376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/14/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE To present a pictorial essay of paediatric primary synovial sarcomas from common and less documented anatomical locations. To review the literature for the imaging characteristics and prognostic factors of this rare but important childhood malignancy. METHOD 24 primary synovial sarcoma cases (17 male, 7 female with an age range 4-21 years) were reviewed in a collaborative effort between St Jude Children's Research Hospital and Great Ormond Street Hospital for Children. Images from 19 cases were selected for inclusion, to demonstrate the spectrum of appearances across imaging modalities, in a range of different anatomical locations (upper limb, lower limb, chest/abdomen/pelvis, and head and neck). A literature review depicting the typical radiological features and the prognostic significance of these features, was also conducted. RESULTS AND CONCLUSIONS Primary synovial sarcoma can occur in any anatomical location, but typically within the extremities and often in close association with joints. Rarer anatomical locations described in our essay include the gastrohepatic ligament and femoral nerve sheath. We detail the salient imaging characteristics, including the T2 'triple signal' pattern which is believed to be highly specific for this particular sarcoma and in many cases predicts a poor outcome. Other poor prognostic factors include haemorrhage, lack of calcification and tumour size >10 cm. A broad range of radiological appearances are described, and in some cases related to anatomical position and size, however the presence of a soft tissue mass close to a joint in a young patient are suggestive of this diagnosis.
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Affiliation(s)
- Melissa Hickson
- The Whittington Hospital, Magdala Avenue, London N19 5NF, UK.
| | - Kieran McHugh
- Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK.
| | - Beth McCarville
- St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105-3678, USA.
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12
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Synovial Sarcoma: A Complex Disease with Multifaceted Signaling and Epigenetic Landscapes. Curr Oncol Rep 2020; 22:124. [PMID: 33025259 DOI: 10.1007/s11912-020-00985-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE OF REVIEW Aside from a characteristic SS18-SSX translocation identified in almost all cases, no genetic anomalies have been reliably isolated yet to drive the pathogenesis of synovial sarcoma. In the following review, we explore the structural units of wild-type SS18 and SSX, particularly as they relate to the transcriptional alterations and cellular pathway changes imposed by SS18-SSX. RECENT FINDINGS Native SS18 and SSX contribute recognizable domains to the SS18-SSX chimeric proteins, which inflict transcriptional and epigenetic changes through selective protein interactions involving the SWI/SNF and Polycomb chromatin remodeling complexes. Multiple oncogenic and developmental pathways become altered, collectively reprogramming the cellular origin of synovial sarcoma and promoting its malignant transformation. Synovial sarcoma is characterized by complex epigenetic and signaling landscapes. Identifying the operational pathways and concomitant genetic changes induced by SS18-SSX fusions could help develop tailored therapeutic strategies to ultimately improve disease control and patient survivorship.
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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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Hale R, Sandakly S, Shipley J, Walters Z. Epigenetic Targets in Synovial Sarcoma: A Mini-Review. Front Oncol 2019; 9:1078. [PMID: 31681608 PMCID: PMC6813544 DOI: 10.3389/fonc.2019.01078] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 09/30/2019] [Indexed: 01/25/2023] Open
Abstract
Synovial Sarcomas (SS) are a type of Soft Tissue Sarcoma (STS) and represent 8-10% of all STS cases. Although SS can arise at any age, it typically affects younger individuals aged 15-35 and is therefore part of both pediatric and adult clinical practices. SS occurs primarily in the limbs, often near joints, but can present anywhere. It is characterized by the recurrent pathognomonic chromosomal translocation t(X;18)(p11.2;q11.2) that most frequently fuses SSX1 or SSX2 genes with SS18. This leads to the expression of the SS18-SSX fusion protein, which causes disturbances in several interacting multiprotein complexes such as the SWItch/Sucrose Non-Fermentable (SWI/SNF) complex, also known as the BAF complex and the Polycomb Repressive Complex 1 and 2 (PRC1 and PRC2). Furthermore, this promotes widespread epigenetic rewiring, leading to aberrant gene expression that drives the pathogenesis of SS. Good prognoses are characterized predominantly by small tumor size and young patient age. Whereas, high tumor grade and an increased genomic complexity of the tumor constitute poor prognostic factors. The current therapeutic strategy relies on chemotherapy and radiotherapy, the latter of which can lead to chronic side effects for pediatric patients. We will focus on the known roles of SWI/SNF, PRC1, and PRC2 as the main effectors of the SS18-SSX-mediated genome modifications and we present existing biological rationale for potential therapeutic targets and treatment strategies.
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Affiliation(s)
- Ryland Hale
- Translational Epigenomics Team, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Sami Sandakly
- Sarcoma Molecular Pathology Team, Divisions of Molecular Pathology and Cancer Therapeutics, The Institute of Cancer Research, London, United Kingdom
| | - Janet Shipley
- Sarcoma Molecular Pathology Team, Divisions of Molecular Pathology and Cancer Therapeutics, The Institute of Cancer Research, London, United Kingdom
| | - Zoë Walters
- Translational Epigenomics Team, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
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Lanzi C, Dal Bo L, Favini E, Tortoreto M, Beretta GL, Arrighetti N, Zaffaroni N, Cassinelli G. Overactive IGF1/Insulin Receptors and NRASQ61R Mutation Drive Mechanisms of Resistance to Pazopanib and Define Rational Combination Strategies to Treat Synovial Sarcoma. Cancers (Basel) 2019; 11:cancers11030408. [PMID: 30909453 PMCID: PMC6468361 DOI: 10.3390/cancers11030408] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/08/2019] [Accepted: 03/18/2019] [Indexed: 12/15/2022] Open
Abstract
Pazopanib is approved for treatment of advanced soft tissue sarcomas, but primary and secondary drug resistance limits its clinical utility. We investigated the molecular mechanisms mediating pazopanib resistance in human synovial sarcoma (SS) models. We found reduced cell sensitivity to pazopanib associated with inefficient inhibition of the two critical signaling nodes, AKT and ERKs, despite strong inhibition of the main drug target, PDGFRα. In the CME-1 cell line, overactivation of IGF1 and Insulin receptors (IGF1R/InsR) sustained AKT activation and pazopanib resistance, which was overcome by a combination treatment with the double IGF1R/InsR inhibitor BMS754807. In the highly pazopanib resistant MoJo cell line, NRASQ61R mutation sustained constitutive ERK activation. Transfection of the NRAS mutant in the pazopanib sensitive SYO-1 cell line increased the drug IC50. MoJo cells treatment with pazopanib in combination with the MEK inhibitor trametinib restored ERK inhibition, synergistically inhibited cell growth, and induced apoptosis. The combination significantly enhanced the antitumor efficacy against MoJo orthotopic xenograft abrogating growth in 38% of mice. These findings identified two different mechanisms of intrinsic pazopanib resistance in SS cells, supporting molecular/immunohistochemical profiling of tumor specimens as a valuable approach to selecting patients who may benefit from rational drug combinations.
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Affiliation(s)
- Cinzia Lanzi
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Laura Dal Bo
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Enrica Favini
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Monica Tortoreto
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Giovanni Luca Beretta
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Noemi Arrighetti
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Nadia Zaffaroni
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Giuliana Cassinelli
- Department of Applied Research and Technological Development, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
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Isfort I, Cyra M, Elges S, Kailayangiri S, Altvater B, Rossig C, Steinestel K, Grünewald I, Huss S, Eßeling E, Mikesch JH, Hafner S, Simmet T, Wozniak A, Schöffski P, Larsson O, Wardelmann E, Trautmann M, Hartmann W. SS18-SSX–Dependent YAP/TAZ Signaling in Synovial Sarcoma. Clin Cancer Res 2019; 25:3718-3731. [DOI: 10.1158/1078-0432.ccr-17-3553] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/02/2018] [Accepted: 02/21/2019] [Indexed: 11/16/2022]
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17
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Natarajan V, Ramanathan P, Gopisetty G, Ramachandran B, Thangarajan R, Kesavan S. In silico and in vitro screening of small molecule Inhibitors against SYT-SSX1 fusion protein in synovial sarcoma. Comput Biol Chem 2018; 77:36-43. [PMID: 30219714 DOI: 10.1016/j.compbiolchem.2018.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 12/30/2022]
Abstract
Synovial sarcoma (SS) is characterized by a tumour specific chromosomal translocation t(X;18) (p11;q11) which results in the formation of SYT-SSX1 fusion protein. This fusion protein represents a clear therapeutic target and molecules specifically targeting SYT-SSX1 fusion protein are currently not available. In this study, SYT-SSX1 fusion protein sequence was retrieved from Uniprot and 3D structure was generated using I-TASSER modeling program. A structure based computational screening approach has been employed using Glide docking software to identify potential SYT-SSX1 small molecule inhibitors that bind to the junction region of the fusion protein. The obtained inhibitors were further filtered based on the docking score and ADME/T properties. Ten best fit compounds were chosen for in vitro studies. The anti-proliferative activities of these 10 compounds were screened in Yamato, ASKA (carries SYT-SSX1 fusion protein) and other sarcoma cell lines such as A673, 143B to understand the specificity of inhibition of the chosen compounds. The in vitro activity was compared against HEK293 cell lines. The compound 5-fluoro-3-(1-phenyl-1H-tetraazol-5-yl)-1H-indole (FPTI) was found to be selectively cytotoxic in synovial sarcoma cell lines (Yamato and ASKA) and this compound also showed insignificant anti proliferative activity on other cell lines. Further, target gene expression study confirmed that FPTI treatment down-regulated SYT-SSX1 and modulated its downstream target genes. Cell cycle analysis revealed the involvement of an apoptotic mechanism of cell death. Further experimental validations may elucidate the therapeutic potentials of FPTI against SYT-SSX1 fusion protein.
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Affiliation(s)
- Valliyammai Natarajan
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India
| | - Priya Ramanathan
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India
| | - Gopal Gopisetty
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India
| | - Balaji Ramachandran
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India
| | - Rajkumar Thangarajan
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India
| | - Sabitha Kesavan
- Dept of Molecular Oncology, Dr. S. Krishnamurthi Campus, Cancer Institute (WIA), Guindy, Chennai, 600036, India.
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Abstract
OPINION STATEMENT Synovial sarcoma (SS) is a rare, yet highly malignant, type of soft tissue sarcoma (STS), for which survival has not improved significantly during the past years. In this review, we focus on systemic treatment in adults. Compared to other STS, SS are relatively chemosensitive. Ifosfamide and ifosfamide combinations are active in different lines of treatment. In high-risk extremity and chest wall STS, neoadjuvant doxorubicin and ifosfamide has shown as much activity as high-dose ifosfamide. There are indications that combination chemotherapy with doxorubicin and ifosfamide in this setting improves outcome. In the first-line metastatic setting, combination treatment with doxorubicin and ifosfamide is a preferred option in fit patients, while in other patients, sequential doxorubicin and ifosfamide can be considered. In second and later lines, pazopanib and trabectedin have shown activity. Many new approaches to treat metastatic SS are currently under investigation, both preclinical as well as clinical, including other receptor tyrosine kinase inhibitors, epigenetic modulators, compounds interfering with DNA damage response (DDR), and immunotherapy.
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Affiliation(s)
- Ingrid M E Desar
- Department of Medical Oncology, Radboud University Medical Centre Nijmegen, Nijmegen, The Netherlands
| | | | - Winette T A van der Graaf
- Department of Medical Oncology, Radboud University Medical Centre Nijmegen, Nijmegen, The Netherlands.
- The Institute of Cancer Research and the Royal Marsden NHS Foundation Trust, London, UK.
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Dominant-negative SMARCA4 mutants alter the accessibility landscape of tissue-unrestricted enhancers. Nat Struct Mol Biol 2017; 25:61-72. [PMID: 29323272 PMCID: PMC5909405 DOI: 10.1038/s41594-017-0007-3] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 11/09/2017] [Indexed: 01/03/2023]
Abstract
Mutation of SMARCA4 (BRG1), the ATPase of BAF (mSWI/SNF) and PBAF complexes, contributes to a range of malignancies and neurologic disorders. Unfortunately, the effects of SMARCA4 missense mutations have remained uncertain. Here we show that SMARCA4 cancer missense mutations target conserved ATPase surfaces and disrupt the mechanochemical cycle of remodeling. We find that heterozygous expression of mutants alters the open chromatin landscape at thousands of sites across the genome. Loss of DNA accessibility does not directly overlap with Polycomb accumulation, but is enriched in 'A compartments' at active enhancers, which lose H3K27ac but not H3K4me1. Affected positions include hundreds of sites identified as superenhancers in many tissues. Dominant-negative mutation induces pro-oncogenic expression changes, including increased expression of Myc and its target genes. Together, our data suggest that disruption of enhancer accessibility represents a key source of altered function in disorders with SMARCA4 mutations in a wide variety of tissues.
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20
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Cassinelli G, Dal Bo L, Favini E, Cominetti D, Pozzi S, Tortoreto M, De Cesare M, Lecis D, Scanziani E, Minoli L, Naggi A, Vlodavsky I, Zaffaroni N, Lanzi C. Supersulfated low-molecular weight heparin synergizes with IGF1R/IR inhibitor to suppress synovial sarcoma growth and metastases. Cancer Lett 2017; 415:187-197. [PMID: 29225052 DOI: 10.1016/j.canlet.2017.12.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 01/26/2023]
Abstract
Synovial sarcoma (SS) is an aggressive tumor with propensity for lung metastases which significantly impact patients' prognosis. New therapeutic approaches are needed to improve treatment outcome. Targeting the heparanase/heparan sulfate proteoglycan system by heparin derivatives which act as heparanase inhibitors/heparan sulfate mimetics is emerging as a therapeutic approach that can sensitize the tumor response to chemotherapy. We investigated the therapeutic potential of a supersulfated low molecular weight heparin (ssLMWH) in preclinical models of SS. ssLMWH showed a potent anti-heparanase activity, dose-dependently inhibited SS colony growth and cell invasion, and downregulated the activation of receptor tyrosine kinases including IGF1R and IR. The combination of ssLMWH and the IGF1R/IR inhibitor BMS754807 synergistically inhibited proliferation of cells exhibiting IGF1R hyperactivation, also abrogating cell motility and promoting apoptosis in association with PI3K/AKT pathway inhibition. The drug combination strongly enhanced the antitumor effect against the CME-1 model, as compared to single agent treatment, abrogating orthotopic tumor growth and significantly repressing spontaneous lung metastatic dissemination in treated mice. These findings provide a strong preclinical rationale for developing drug regimens combining heparanase inhibitors/HS mimetics with IGF1R antagonists for treatment of metastatic SS.
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MESH Headings
- Animals
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Apoptosis/drug effects
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Drug Synergism
- Glucuronidase/antagonists & inhibitors
- Glucuronidase/metabolism
- Heparin, Low-Molecular-Weight/administration & dosage
- Heparin, Low-Molecular-Weight/metabolism
- Heparin, Low-Molecular-Weight/pharmacology
- Humans
- Mice, SCID
- Neoplasm Metastasis
- Pyrazoles/administration & dosage
- Pyrazoles/pharmacology
- Receptor, IGF Type 1
- Receptors, Somatomedin/antagonists & inhibitors
- Receptors, Somatomedin/metabolism
- Sarcoma, Synovial/drug therapy
- Sarcoma, Synovial/metabolism
- Sarcoma, Synovial/pathology
- Sulfates
- Triazines/administration & dosage
- Triazines/pharmacology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Giuliana Cassinelli
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
| | - Laura Dal Bo
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Enrica Favini
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Denis Cominetti
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Sabina Pozzi
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Monica Tortoreto
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Michelandrea De Cesare
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Daniele Lecis
- Research Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Eugenio Scanziani
- Department of Veterinary Medicine, Università Degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; Mouse and Animal Pathology Laboratory, Fondazione Filarete, Viale Ortles 22/4, 20139 Milan, Italy
| | - Lucia Minoli
- Department of Veterinary Medicine, Università Degli Studi di Milano, Via Celoria 10, 20133 Milan, Italy; Mouse and Animal Pathology Laboratory, Fondazione Filarete, Viale Ortles 22/4, 20139 Milan, Italy
| | - Annamaria Naggi
- G. Ronzoni Institute for Chemical and Biochemical Research, Via G. Colombo 81, 20133 Milan, Italy
| | - Israel Vlodavsky
- Cancer and Vascular Biology Research Center, Bruce Rappaport Faculty of Medicine, Technion, P.O. Box 9649, Haifa 31096, Israel
| | - Nadia Zaffaroni
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy
| | - Cinzia Lanzi
- Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42, 20133 Milan, Italy.
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21
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Cheng L, Han Y, Zhao X, Xu X, Wang J. Identifying pathway modules of tuberculosis in children by analyzing multiple different networks. Exp Ther Med 2017; 15:755-760. [PMID: 29399082 PMCID: PMC5769296 DOI: 10.3892/etm.2017.5434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 10/13/2017] [Indexed: 02/02/2023] Open
Abstract
Tuberculosis (TB), which is caused by the mycobacterium TB, is the major cause of human death worldwide. The aim of this study was to identify the biomarkers involved in child TB. Gene expression data were obtained from the Array Express Archive of Functional Genomics Data. Gene expression data and protein-protein interaction (PPI) data were downloaded to construct differential gene co-expression networks (DCNs). The Benjamini-Hochberg algorithm was used to correct the P-value. In total, 3,820 edges (PPIs) and 1,359 nodes (genes) were obtained from the human-related PPIs data and gene expression data at the criteria of absolute value of Pearson's correlation coefficient >0.8. The DCNs were formed by these edges and nodes. Thirteen seed genes were obtained by ranging z-scores. Eight significant multiple different modules were identified from DCNs using the statistical significant test. In conclusion, the seed genes and significant modules constitute potential biomarkers that reveal the underlying mechanisms in child TB. The new identified biomarkers may contribute to an understanding of TB and provide a new therapeutic method for the treatment of TB.
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Affiliation(s)
- Lu Cheng
- Department of Respiratory Medicine, Qilu Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
| | - Yuling Han
- Department of Respiratory Medicine, Qilu Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
| | - Xiuxia Zhao
- Department of Respiratory Medicine, Qilu Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
| | - Xiaoli Xu
- Department of Respiratory Medicine, Qilu Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
| | - Jing Wang
- Department of Respiratory Medicine, Qilu Children's Hospital of Shandong University, Jinan, Shandong 250022, P.R. China
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FUS–DDIT3 Fusion Protein-Driven IGF-IR Signaling is a Therapeutic Target in Myxoid Liposarcoma. Clin Cancer Res 2017. [DOI: 10.1158/1078-0432.ccr-17-0130] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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El Beaino M, Araujo DM, Lazar AJ, Lin PP. Synovial Sarcoma: Advances in Diagnosis and Treatment Identification of New Biologic Targets to Improve Multimodal Therapy. Ann Surg Oncol 2017; 24:2145-2154. [PMID: 28397189 DOI: 10.1245/s10434-017-5855-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Indexed: 12/14/2022]
Abstract
Synovial sarcoma is a translocation-associated soft-tissue malignancy that frequently affects adolescents and young adults. It is driven by one of the fusion oncoproteins SS18-SSX1, SS18-SSX2, or rarely, SS18-SSX4. Prognosis of patients with recurrent or metastatic disease is generally poor, and newer therapeutic strategies are needed. In this review, we present recent discoveries in the pathogenesis, diagnosis, and treatment of synovial sarcoma. We discuss potential therapeutic strategies to improve clinical outcomes in this disease.
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Affiliation(s)
- Marc El Beaino
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, Houston, TX, USA
| | - Dejka M Araujo
- Department of Sarcoma Medical Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Alexander J Lazar
- Department of Pathology, MD Anderson Cancer Center, Houston, TX, USA
| | - Patrick P Lin
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, Houston, TX, USA.
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24
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Laporte AN, Barrott JJ, Yao RJ, Poulin NM, Brodin BA, Jones KB, Underhill TM, Nielsen TO. HDAC and Proteasome Inhibitors Synergize to Activate Pro-Apoptotic Factors in Synovial Sarcoma. PLoS One 2017; 12:e0169407. [PMID: 28056055 PMCID: PMC5215898 DOI: 10.1371/journal.pone.0169407] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 12/16/2016] [Indexed: 12/29/2022] Open
Abstract
Conventional cytotoxic therapies for synovial sarcoma provide limited benefit, and no drugs specifically targeting its driving SS18-SSX fusion oncoprotein are currently available. Patients remain at high risk for early and late metastasis. A high-throughput drug screen consisting of over 900 tool compounds and epigenetic modifiers, representing over 100 drug classes, was undertaken in a panel of synovial sarcoma cell lines to uncover novel sensitizing agents and targetable pathways. Top scoring drug categories were found to be HDAC inhibitors and proteasomal targeting agents. We find that the HDAC inhibitor quisinostat disrupts the SS18-SSX driving protein complex, thereby reestablishing expression of EGR1 and CDKN2A tumor suppressors. In combination with proteasome inhibition, HDAC inhibitors synergize to decrease cell viability and elicit apoptosis. Quisinostat inhibits aggresome formation in response to proteasome inhibition, and combination treatment leads to elevated endoplasmic reticulum stress, activation of pro-apoptotic effector proteins BIM and BIK, phosphorylation of BCL-2, increased levels of reactive oxygen species, and suppression of tumor growth in a murine model of synovial sarcoma. This study identifies and provides mechanistic support for a particular susceptibility of synovial sarcoma to the combination of quisinostat and proteasome inhibition.
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Affiliation(s)
- Aimée N. Laporte
- Faculty of Medicine, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jared J. Barrott
- Department of Orthopaedics, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, United States of America
| | - Ren Jie Yao
- Faculty of Medicine, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Neal M. Poulin
- Faculty of Medicine, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bertha A. Brodin
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Kevin B. Jones
- Department of Orthopaedics, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, United States of America
| | - T. Michael Underhill
- Department of Cellular and Physiological Sciences, Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Torsten O. Nielsen
- Faculty of Medicine, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
- * E-mail:
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Next generation sequencing in synovial sarcoma reveals novel gene mutations. Oncotarget 2016; 6:34680-90. [PMID: 26415226 PMCID: PMC4741482 DOI: 10.18632/oncotarget.5786] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 08/31/2015] [Indexed: 01/05/2023] Open
Abstract
Over 95% of all synovial sarcomas (SS) share a unique translocation, t(X;18), however, they show heterogeneous clinical behavior. We analyzed multiple SS to reveal additional genetic alterations besides the translocation. Twenty-six SS from 22 patients were sequenced for 409 cancer-related genes using the Comprehensive Cancer Panel (Life Technologies, USA) on an Ion Torrent platform. The detected variants were verified by Sanger sequencing and compared to matched normal DNAs. Copy number variation was assessed in six tumors using the Oncoscan array (Affymetrix, USA). In total, eight somatic mutations were detected in eight samples. These mutations have not been reported previously in SS. Two of these, in KRAS and CCND1, represent known oncogenic mutations in other malignancies. Additional mutations were detected in RNF213, SEPT9, KDR, CSMD3, MLH1 and ERBB4. DNA alterations occurred more often in adult tumors. A distinctive loss of 6q was found in a metastatic lesion progressing under pazopanib, but not in the responding lesion. Our results emphasize t(X;18) as a single initiating event in SS and as the main oncogenic driver. Our results also show the occurrence of additional genetic events, mutations or chromosomal aberrations, occurring more frequently in SS with an onset in adults.
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Shen JK, Cote GM, Gao Y, Choy E, Mankin HJ, Hornicek FJ, Duan Z. Targeting EZH2-mediated methylation of H3K27 inhibits proliferation and migration of Synovial Sarcoma in vitro. Sci Rep 2016; 6:25239. [PMID: 27125524 PMCID: PMC4850444 DOI: 10.1038/srep25239] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/13/2016] [Indexed: 02/02/2023] Open
Abstract
Synovial sarcoma is an aggressive soft tissue sarcoma genetically defined by the fusion oncogene SS18-SSX. It is hypothesized that either SS18-SSX disrupts SWI/SNF complex inhibition of the polycomb complex 2 (PRC2) methyltransferase Enhancer of Zeste Homologue 2 (EZH2), or that SS18-SSX is able to directly recruit PRC2 to aberrantly silence target genes. This is of potential therapeutic value as several EZH2 small molecule inhibitors are entering early phase clinical trials. In this study, we first confirmed EZH2 expression in the 76% of human synovial sarcoma samples. We subsequently investigated EZH2 as a therapeutic target in synovial sarcoma in vitro. Knockdown of EZH2 by shRNA or siRNA resulted in inhibition of cell growth and migration across a series of synovial sarcoma cell lines. The EZH2 selective small-molecule inhibitor EPZ005687 similarly suppressed cell proliferation and migration. These data support the hypothesis that targeting EZH2 may be a promising therapeutic strategy in the treatment of synovial sarcoma; clinical trials are initiating enrollment currently.
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Affiliation(s)
- Jacson K. Shen
- Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, United States
| | - Gregory M. Cote
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, United States
| | - Yan Gao
- Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, United States
| | - Edwin Choy
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, United States
| | - Henry J. Mankin
- Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, United States
| | - Francis J. Hornicek
- Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, United States
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital, Boston, United States
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Tamaki S, Fukuta M, Sekiguchi K, Jin Y, Nagata S, Hayakawa K, Hineno S, Okamoto T, Watanabe M, Woltjen K, Ikeya M, Kato T, Toguchida J. SS18-SSX, the Oncogenic Fusion Protein in Synovial Sarcoma, Is a Cellular Context-Dependent Epigenetic Modifier. PLoS One 2015; 10:e0142991. [PMID: 26571495 PMCID: PMC4646489 DOI: 10.1371/journal.pone.0142991] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 10/29/2015] [Indexed: 12/18/2022] Open
Abstract
The prevalence and specificity of unique fusion oncogenes are high in a number of soft tissue sarcomas (STSs). The close relationship between fusion genes and clinicopathological features suggests that a correlation may exist between the function of fusion proteins and cellular context of the cell-of-origin of each tumor. However, most STSs are origin-unknown tumors and this issue has not yet been investigated in detail. In the present study, we examined the effects of the cellular context on the function of the synovial sarcoma (SS)-specific fusion protein, SS18-SSX, using human pluripotent stem cells (hPSCs) containing the drug-inducible SS18-SSX gene. We selected the neural crest cell (NCC) lineage for the first trial of this system, induced SS18-SSX at various differentiation stages from PSCs to NCC-derived mesenchymal stromal cells (MSCs), and compared its biological effects on each cell type. We found that the expression of FZD10, identified as an SS-specific gene, was induced by SS18-SSX at the PSC and NCC stages, but not at the MSC stage. This stage-specific induction of FZD10 correlated with stage-specific changes in histone marks associated with the FZD10 locus and also with the loss of the BAF47 protein, a member of the SWI/SNF chromatin-remodeling complex. Furthermore, the global gene expression profile of hPSC-derived NCCs was the closest to that of SS cell lines after the induction of SS18-SSX. These results clearly demonstrated that the cellular context is an important factor in the function of SS18-SSX as an epigenetic modifier.
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Affiliation(s)
- Sakura Tamaki
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Makoto Fukuta
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Kazuya Sekiguchi
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yonghui Jin
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Sanae Nagata
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Kazuo Hayakawa
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Sho Hineno
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Takeshi Okamoto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Makoto Watanabe
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Life Science Research Center, Technology Research Laboratory, Shimadzu Corporation, Kyoto, Japan
| | - Knut Woltjen
- Department of Life Science Frontiers, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Makoto Ikeya
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Tomohisa Kato
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Junya Toguchida
- Department of Tissue Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- * E-mail:
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28
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Chen Q, Zhou Z, Shan L, Zeng H, Hua Y, Cai Z. The importance of Src signaling in sarcoma. Oncol Lett 2015; 10:17-22. [PMID: 26170970 DOI: 10.3892/ol.2015.3184] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/22/2015] [Indexed: 12/23/2022] Open
Abstract
Src is a tyrosine kinase that is of significance in tumor biology. The present review focuses on Src, its molecular structure, and role in cancer, in addition to its expression and function in sarcoma. In addition, the feasibility of Src as a potential drug target for the treatment of sarcoma is also discussed. Previous studies have suggested that Src has essential functions in cell proliferation, apoptosis, invasion, metastasis and the tumor microenvironment. Thus, it may be a potential target for cancer therapy. Src has been found to enhance proliferation, reduce apoptosis and promote metastasis in certain subtypes of sarcoma, including osteosarcoma, chondrosarcoma and Ewing's sarcoma. Furthermore, a number of novel effective therapeutic agents, such as SI-83, which target Src have been investigated in vitro and in vivo. Bosutinib and dasatinib, which inhibit Src, have been approved by the U.S. Food and Drug Administration for the treatment of chronic myelogenous leukemia. In addition, vandetanib is approved for the treatment of medullary thyroid cancer. Furthermore, the Src inhibitor, saracatinib, is currently in clinical trials for the treatment of a variety of solid tumors, including breast and lung cancers. Thus, Src is considered to be an important factor in sarcoma progression and may present a novel clinical therapeutic target. This review demonstrates the importance and clinical relevance of Src in sarcoma, and discusses a number of small molecular inhibitors of src kinase, such as dasatinib and sarcatinib, which are currently in clinical trials for the treatment of sarcoma patients.
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Affiliation(s)
- Quanchi Chen
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Zifei Zhou
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Liancheng Shan
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Hui Zeng
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Yingqi Hua
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Zhengdong Cai
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
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Roberts SB, Wootton E, De Ferrari L, Albagha OM, Salter DM. Epigenetics of osteoarticular diseases: recent developments. Rheumatol Int 2015; 35:1293-305. [PMID: 25812537 DOI: 10.1007/s00296-015-3260-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/20/2015] [Indexed: 01/08/2023]
Abstract
A variety of osteoarticular conditions possess an underlying genetic aetiology. Large-scale genome-wide association studies have identified several genetic loci associated with osteoarticular conditions, but were unable to fully account for their estimated heritability. Epigenetic modifications including DNA methylation, histone modification, nucleosome positioning, and microRNA expression may help account for this incomplete heritability. This articles reviews insights from epigenetic studies in osteoarticular diseases, focusing on osteoarthritis, but also examines recent advances in rheumatoid arthritis, osteoporosis, systemic lupus erythematosus (SLE), ankylosing spondylitis, and sarcoma. Genome-wide methylation studies are permitting identification of novel candidate genes and molecular pathways, and the pathogenic mechanisms with altered methylation status are beginning to be elucidated. These findings are gradually translating into improved understanding of disease pathogenesis and clinical applications. Functional studies in osteoarthritis, rheumatoid arthritis, and SLE are now identifying downstream molecular alterations that may confer disease susceptibility. Epigenetic markers are being validated as prognostic and therapeutic disease biomarkers in sarcoma, and clinical trials of hypomethylating agents as treatments for sarcoma are being conducted. In concert with advances in throughput and cost-efficiency of available technologies, future epigenetic research will enable greater characterisation and treatment for both common and rare osteoarticular diseases.
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Affiliation(s)
- S B Roberts
- Bone Research Group, Centre for Genomics and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK,
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30
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Palmerini E, Benassi MS, Quattrini I, Pazzaglia L, Donati D, Benini S, Gamberi G, Gambarotti M, Picci P, Ferrari S. Prognostic and predictive role of CXCR4, IGF-1R and Ezrin expression in localized synovial sarcoma: is chemotaxis important to tumor response? Orphanet J Rare Dis 2015; 10:6. [PMID: 25613038 PMCID: PMC4320838 DOI: 10.1186/s13023-014-0222-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 12/30/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Synovial sarcoma (SS) is a rare tumor, with dismal survival when metastatic. The role of adjuvant chemotherapy is debated. New prognostic and predictive factors are needed. METHODS We reviewed patients with localized SS; SS18-SSX fusion transcript presence was confirmed by FISH and RT-PCR. Expression of CXCR4, IGF-1R and Ezrin were evaluated by immunohistochemistry. RESULTS Tumor samples from 88 SS patients (45 female; 43 male) with median age 37 years (range 11-63) were selected. The size of the lesion was > 5 cm in 68% of patients and 34% of cases presented biphasic histotype. All patients underwent surgery, 56% adjuvant radiotherapy (RT), 65% adjuvant chemotherapy. A positive stain for IGF-1R was detected in 55 patients, with nucleus expression in 21 patients. CXCR4 was expressed in 74 patients, nuclear pattern in 31 patients. 80 SS were positive to Ezrin, 48 had cytoplasmatic location, 32 membrane location. With a median follow-up of 6 years (1-30 years), the 5-year overall survival (OS) was 70% (95% CI 60-81). 5-year OS was 63% (95% CI 41-85%) for patients with positive IGF-1R/nuclear expression, and 73% (95% CI 61-85%; P = 0.05) in negative patients. 5-year OS was 47% (95% CI 27-66%) in patients with positive CXCR4/nuclear staining, and 86% (95% CI 76-96%, P = 0.0003) in negative cases. No survival difference was found according to Ezrin expression. By multivariate analysis, nuclear expression of CXCR4 and IGF-1R was confirmed independent adverse prognostic factor for SS patient survival linked to the use of chemotherapy. CONCLUSIONS Our findings have important potential implications demonstrating that together with clinical prognostic factors such as radiotherapy and age, CXCR4 and IGF-1R negatively influences survival in patients with localized SS. We believe that further studies addressed to the effects of CXCR4 and IGF-1R inhibitors on cell viability and function are needed to plan new and more appropriate SS treatments.
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MESH Headings
- Adolescent
- Adult
- Biomarkers, Tumor/biosynthesis
- Biomarkers, Tumor/genetics
- Chemotaxis
- Child
- Cytoskeletal Proteins/biosynthesis
- Cytoskeletal Proteins/genetics
- Female
- Follow-Up Studies
- Forecasting
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Male
- Middle Aged
- Prognosis
- RNA, Neoplasm
- Real-Time Polymerase Chain Reaction
- Receptor, IGF Type 1/biosynthesis
- Receptor, IGF Type 1/genetics
- Receptors, CXCR4/biosynthesis
- Receptors, CXCR4/genetics
- Retrospective Studies
- Sarcoma, Synovial/diagnosis
- Sarcoma, Synovial/genetics
- Sarcoma, Synovial/metabolism
- Signal Transduction
- Young Adult
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Affiliation(s)
- Emanuela Palmerini
- />PROMETEO Laboratory/Section of Chemotherapy, Research, Innovation & Technology (RIT) Department, Istituto Ortopedico Rizzoli, Via Pupilli, 1, 40136, Bologna, Italy
| | | | | | | | | | | | - Gabriella Gamberi
- />Surgical Pathology, Bologna, Italy
- />Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | | | - Piero Picci
- />Laboratory of Experimental Research, Bologna, Italy
| | - Stefano Ferrari
- />Section of Chemotherapy Musculoskeletal Oncology Department, Istituto Ortopedico Rizzoli, Bologna, Italy
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31
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Morgan SS, Cranmer LD. Vorinostat synergizes with ridaforolimus and abrogates the ridaforolimus-induced activation of AKT in synovial sarcoma cells. BMC Res Notes 2014; 7:812. [PMID: 25406429 PMCID: PMC4247709 DOI: 10.1186/1756-0500-7-812] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 10/31/2014] [Indexed: 11/13/2022] Open
Abstract
Background Curative treatments for patients with metastatic synovial sarcoma (SS) do not exist, and such patients have a poor prognosis. We explored combinations of molecularly-targeted and cytotoxic agents to identify synergistic treatment combinations in SS cells. Methods Two SS cell lines (HS-SY-II and SYO-I) were treated with single agents or combinations of molecularly targeted therapies (HDAC inhibitor, vorinostat; mTOR inhibitor, ridaforolimus) and cytotoxic agents. After 72 hours, cell viability was measured using the MTS cell proliferation assay. Combination Indices (CI) were calculated to determine whether each combination was synergistic, additive, or antagonistic. Western Blot analysis assessed alterations in total and phospho-AKT protein levels in response to drug treatment. Results We determined the single-agent IC50 for ridaforolimus, vorinostat, doxorubicin, and melphalan in HS-SY-II and SYO-I. Synergism was apparent in cells co-treated with ridaforolimus and vorinostat: CI was 0.28 and 0.63 in HS-SY-II and SYO-I, respectively. Ridaforolimus/doxorubicin and ridaforolimus/melphalan exhibited synergism in both cell lines. An additive effect was observed with combination of vorinostat/doxorubicin in both cell lines. Vorinostat/melphalan was synergistic in HS-SY-II and additive in SYO-I. Western blot analysis demonstrated that ridaforolimus increased pAKT-ser473 levels; this effect was abrogated by vorinostat co-treatment. Conclusions The combination of ridaforolimus and vorinostat demonstrates in vitro synergism in SS. Addition of vorinostat abrogated ridaforolimus-induced AKT activation. Since AKT activation is a possible mechanism of resistance to mTOR inhibitors, adding vorinostat (or another HDAC inhibitor) may be a route to circumvent AKT-mediated resistance to mTOR inhibitors.
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Affiliation(s)
| | - Lee D Cranmer
- The University of Arizona Cancer Center, 1515 N, Campbell Avenue, Tucson, AZ 85724-5024, USA.
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32
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Son EY, Crabtree GR. The role of BAF (mSWI/SNF) complexes in mammalian neural development. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2014; 166C:333-49. [PMID: 25195934 DOI: 10.1002/ajmg.c.31416] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The BAF (mammalian SWI/SNF) complexes are a family of multi-subunit ATP-dependent chromatin remodelers that use ATP hydrolysis to alter chromatin structure. Distinct BAF complex compositions are possible through combinatorial assembly of homologous subunit families and can serve non-redundant functions. In mammalian neural development, developmental stage-specific BAF assemblies are found in embryonic stem cells, neural progenitors and postmitotic neurons. In particular, the neural progenitor-specific BAF complexes are essential for controlling the kinetics and mode of neural progenitor cell division, while neuronal BAF function is necessary for the maturation of postmitotic neuronal phenotypes as well as long-term memory formation. The microRNA-mediated mechanism for transitioning from npBAF to nBAF complexes is instructive for the neuronal fate and can even convert fibroblasts into neurons. The high frequency of BAF subunit mutations in neurological disorders underscores the rate-determining role of BAF complexes in neural development, homeostasis, and plasticity.
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33
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Palmerini E, Paioli A, Ferrari S. Emerging therapeutic targets for synovial sarcoma. Expert Rev Anticancer Ther 2014; 14:791-806. [DOI: 10.1586/14737140.2014.901155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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34
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Trautmann M, Sievers E, Aretz S, Kindler D, Michels S, Friedrichs N, Renner M, Kirfel J, Steiner S, Huss S, Koch A, Penzel R, Larsson O, Kawai A, Tanaka S, Sonobe H, Waha A, Schirmacher P, Mechtersheimer G, Wardelmann E, Büttner R, Hartmann W. SS18-SSX fusion protein-induced Wnt/β-catenin signaling is a therapeutic target in synovial sarcoma. Oncogene 2013; 33:5006-16. [PMID: 24166495 DOI: 10.1038/onc.2013.443] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 09/11/2013] [Accepted: 09/16/2013] [Indexed: 12/11/2022]
Abstract
Synovial sarcoma is a high-grade soft tissue malignancy characterized by a specific reciprocal translocation t(X;18), which leads to the fusion of the SS18 (SYT) gene to one of three SSX genes (SSX1, SSX2 or SSX4). The resulting chimeric SS18-SSX protein is suggested to act as an oncogenic transcriptional regulator. Despite multimodal therapeutic approaches, metastatic disease is often lethal and the development of novel targeted therapeutic strategies is required. Several expression-profiling studies identified distinct gene expression signatures, implying a consistent role of Wnt/β-catenin signaling in synovial sarcoma tumorigenesis. Here we investigate the functional and therapeutic relevance of Wnt/β-catenin pathway activation in vitro and in vivo. Immunohistochemical analyses of nuclear β-catenin and Wnt downstream targets revealed activation of canonical Wnt signaling in a significant subset of 30 primary synovial sarcoma specimens. Functional aspects of Wnt signaling including dependence of Tcf/β-catenin complex activity on the SS18-SSX fusion proteins were analyzed. Efficient SS18-SSX-dependent activation of the Tcf/β-catenin transcriptional complex was confirmed by TOPflash reporter luciferase assays and immunoblotting. In five human synovial sarcoma cell lines, inhibition of the Tcf/β-catenin protein-protein interaction significantly blocked the canonical Wnt/β-catenin signaling cascade, accompanied by the effective downregulation of Wnt targets (AXIN2, CDC25A, c-MYC, DKK1, CyclinD1 and Survivin) and the specific suppression of cell viability associated with the induction of apoptosis. In SYO-1 synovial sarcoma xenografts, administration of small molecule Tcf/β-catenin complex inhibitors significantly reduced tumor growth, associated with diminished AXIN2 protein levels. In summary, SS18-SSX-induced Wnt/β-catenin signaling appears to be of crucial biological importance in synovial sarcoma tumorigenesis and progression, representing a potential molecular target for the development of novel therapeutic strategies.
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Affiliation(s)
- M Trautmann
- 1] Department of Pathology, University Hospital Cologne, Cologne, Germany [2] Department of Pathology, University Hospital Bonn, Bonn, Germany
| | - E Sievers
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - S Aretz
- Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - D Kindler
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - S Michels
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - N Friedrichs
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - M Renner
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - J Kirfel
- Department of Pathology, University Hospital Bonn, Bonn, Germany
| | - S Steiner
- Department of Pathology, University Hospital Bonn, Bonn, Germany
| | - S Huss
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - A Koch
- Department of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany
| | - R Penzel
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - O Larsson
- Departments of Oncology & Pathology, The Karolinska Institute, Stockholm, Sweden
| | - A Kawai
- Division of Orthopaedic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - S Tanaka
- Laboratory of Molecular & Cellular Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - H Sonobe
- Department of Laboratory Medicine, Chungoku Central Hospital, Fukuyama, Hiroshima, Japan
| | - A Waha
- Department of Neuropathology, University Hospital Bonn, Bonn, Germany
| | - P Schirmacher
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - G Mechtersheimer
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - E Wardelmann
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - R Büttner
- Department of Pathology, University Hospital Cologne, Cologne, Germany
| | - W Hartmann
- Department of Pathology, University Hospital Cologne, Cologne, Germany
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35
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Yoneda Y, Ito S, Kunisada T, Morimoto Y, Kanzaki H, Yoshida A, Shimizu K, Ozaki T, Ouchida M. Truncated SSX protein suppresses synovial sarcoma cell proliferation by inhibiting the localization of SS18-SSX fusion protein. PLoS One 2013; 8:e77564. [PMID: 24130893 PMCID: PMC3793959 DOI: 10.1371/journal.pone.0077564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 09/03/2013] [Indexed: 01/12/2023] Open
Abstract
Synovial sarcoma is a relatively rare high-grade soft tissue sarcoma that often develops in the limbs of young people and induces the lung and the lymph node metastasis resulting in poor prognosis. In patients with synovial sarcoma, specific chromosomal translocation of t(X; 18) (p11.2;q11.2) is observed, and SS18-SSX fusion protein expressed by this translocation is reported to be associated with pathogenesis. However, role of the fusion protein in the pathogenesis of synovial sarcoma has not yet been completely clarified. In this study, we focused on the localization patterns of SS18-SSX fusion protein. We constructed expression plasmids coding for the full length SS18-SSX, the truncated SS18 moiety (tSS18) and the truncated SSX moiety (tSSX) of SS18-SSX, tagged with fluorescent proteins. These plasmids were transfected in synovial sarcoma SYO-1 cells and we observed the expression of these proteins using a fluorescence microscope. The SS18-SSX fusion protein showed a characteristic speckle pattern in the nucleus. However, when SS18-SSX was co-expressed with tSSX, localization of SS18-SSX changed from speckle patterns to the diffused pattern similar to the localization pattern of tSSX and SSX. Furthermore, cell proliferation and colony formation of synovial sarcoma SYO-1 and YaFuSS cells were suppressed by exogenous tSSX expression. Our results suggest that the characteristic speckle localization pattern of SS18-SSX is strongly involved in the tumorigenesis through the SSX moiety of the SS18-SSX fusion protein. These findings could be applied to further understand the pathogenic mechanisms, and towards the development of molecular targeting approach for synovial sarcoma.
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Affiliation(s)
- Yasushi Yoneda
- Department of Orthopedic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
- Department of Molecular Genetics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Sachio Ito
- Department of Molecular Genetics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Toshiyuki Kunisada
- Department of Medical Materials for Musculoskeletal Reconstruction, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yuki Morimoto
- Department of Orthopedic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hirotaka Kanzaki
- Department of Molecular Genetics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Aki Yoshida
- Department of Orthopedic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kenji Shimizu
- Department of Molecular Genetics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Mamoru Ouchida
- Department of Molecular Genetics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
- * E-mail:
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Lost miRNA surveillance of Notch, IGFR pathway—road to sarcomagenesis. Tumour Biol 2013; 35:483-92. [DOI: 10.1007/s13277-013-1068-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 07/29/2013] [Indexed: 12/16/2022] Open
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Michels S, Trautmann M, Sievers E, Kindler D, Huss S, Renner M, Friedrichs N, Kirfel J, Steiner S, Endl E, Wurst P, Heukamp L, Penzel R, Larsson O, Kawai A, Tanaka S, Sonobe H, Schirmacher P, Mechtersheimer G, Wardelmann E, Büttner R, Hartmann W. SRC signaling is crucial in the growth of synovial sarcoma cells. Cancer Res 2013; 73:2518-28. [PMID: 23580575 DOI: 10.1158/0008-5472.can-12-3023] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Synovial sarcoma is a soft-tissue malignancy characterized by a reciprocal t(X;18) translocation encoding a chimeric transcriptional modifier. Several receptor tyrosine kinases have been found activated in synovial sarcoma; however, no convincing therapeutic concept has emerged from these findings. On the basis of the results of phosphokinase screening arrays, we here investigate the functional and therapeutic relevance of the SRC kinase in synovial sarcoma. Immunohistochemistry of phosphorylated SRC and its regulators CSK and PTP1B (PTPN1) was conducted in 30 synovial sarcomas. Functional aspects of SRC, including dependence of SRC activation on the SS18/SSX fusion proteins, were analyzed in vitro. Eventually, synovial sarcoma xenografts were treated with the SRC inhibitor dasatinib in vivo. Activated phospho (p)-(Tyr416)-SRC was detected in the majority of tumors; dysregulation of CSK or PTP1B was excluded as the reason for the activation of the kinase. Expression of the SS18/SSX fusion proteins in T-REx-293 cells was associated with increased p-(Tyr416)-SRC levels, linked with an induction of the insulin-like growth factor pathway. Treatment of synovial sarcoma cells with dasatinib led to apoptosis and inhibition of cellular proliferation, associated with reduced phosphorylation of FAK (PTK2), STAT3, IGF-IR, and AKT. Concurrent exposure of cells to dasatinib and chemotherapeutic agents resulted in additive effects. Cellular migration and invasion were dependent on signals transmitted by SRC involving regulation of the Rho GTPases Rac and RhoA. Treatment of nude mice with SYO-1 xenografts with dasatinib significantly inhibited tumor growth in vivo. In summary, SRC is of crucial biologic importance and represents a promising therapeutic target in synovial sarcoma.
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Affiliation(s)
- Sebastian Michels
- Department of Pathology, University Hospital Cologne, Cologne, Germany
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Identification of target genes of synovial sarcoma-associated fusion oncoprotein using human pluripotent stem cells. Biochem Biophys Res Commun 2013; 432:713-9. [DOI: 10.1016/j.bbrc.2013.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 01/03/2013] [Indexed: 02/06/2023]
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Nylund C, Rappu P, Pakula E, Heino A, Laato L, Elo LL, Vihinen P, Pyrhönen S, Owen GR, Larjava H, Kallajoki M, Heino J. Melanoma-associated cancer-testis antigen 16 (CT16) regulates the expression of apoptotic and antiapoptotic genes and promotes cell survival. PLoS One 2012; 7:e45382. [PMID: 23028975 PMCID: PMC3448647 DOI: 10.1371/journal.pone.0045382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 08/17/2012] [Indexed: 01/21/2023] Open
Abstract
Cancer-testis (CT) antigens are predominantly expressed in testis or placenta, but absent in most adult tissues. During malignant transformation CT genes are often activated. CT antigen 16 (CT16, PAGE5) is frequently expressed in advanced melanoma but its biological function has been unknown. To examine the role of CT16 in cell survival we knocked it down in A2058 melanoma cells using specific siRNAs and exposed the cells to cancer drug cisplatin known to induce apoptosis. As a result, cell survival was markedly decreased. To study the effects of CT16 on cell survival in more detail, the cellular gene expression profiles were investigated after CT16 silencing in CT16 positive A2058 melanoma cells, as well as after CT16 overexpression in CT16 negative WM-266-4 melanoma cells. Among the 11 genes both upregulated by CT16 silencing and downregulated by CT16 overexpression or vice versa, 4 genes were potentially apoptotic or antiapoptotic genes. CT16 was recognized as a positive regulator of antiapoptotic metallothionein 2A and interleukin 8 genes, whereas it inhibited the expression of apoptosis inducing dickkopf 1 (DKK1) gene. In addition CT16 enhanced the expression of fatty acid binding protein 7, a known promoter of melanoma progression. The effect of CT16 on DKK1 expression was p53 independent. Furthermore, CT16 did not regulate apoptotic genes via DNA methylation. In twenty melanoma metastasis tissue samples average DKK1 mRNA level was shown to be significantly (p<0.05) lower in high CT16 expressing tumors (n = 3) when compared to the tumors with low CT16 expression (n = 17). Thus, our results indicate that CT16 promotes the survival of melanoma cells and is therefore a potential target for future drug development.
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Affiliation(s)
- Camilla Nylund
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
| | - Pekka Rappu
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
- * E-mail:
| | - Eveliina Pakula
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
| | - Aleksi Heino
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
| | - Laura Laato
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
| | - Laura L. Elo
- Department of Mathematics, University of Turku, Turku, Finland
| | - Pia Vihinen
- Department of Oncology and Radiotherapy, Turku University Hospital, Turku, Finland
| | - Seppo Pyrhönen
- Department of Oncology and Radiotherapy, Turku University Hospital, Turku, Finland
| | - Gethin R. Owen
- Department of Oral, Biological and Medical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hannu Larjava
- Department of Oral, Biological and Medical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Jyrki Heino
- Department of Biochemistry and Food Chemistry, University of Turku, Turku, Finland
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Pediatric sarcomas: translating molecular pathogenesis of disease to novel therapeutic possibilities. Pediatr Res 2012; 72:112-21. [PMID: 22546864 PMCID: PMC4283808 DOI: 10.1038/pr.2012.54] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Pediatric sarcomas represent a diverse group of rare bone and soft tissue malignancies. Although the molecular mechanisms that propel the development of these cancers are not well understood, identification of tumor-specific translocations in many sarcomas has provided significant insight into their tumorigenesis. Each fusion protein resulting from these chromosomal translocations is thought to act as a driving force in the tumor, either as an aberrant transcription factor (TF), constitutively active growth factor, or ligand-independent receptor tyrosine kinase. Identification of transcriptional targets or signaling pathways modulated by these oncogenic fusions has led to the discovery of potential therapeutic targets. Some of these targets have shown considerable promise in preclinical models and are currently being tested in clinical trials. This review summarizes the molecular pathology of a subset of pediatric sarcomas with tumor-associated translocations and how increased understanding at the molecular level is being translated to novel therapeutic advances.
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Martín Liberal J, Lagares-Tena L, Sáinz-Jaspeado M, Mateo-Lozano S, García del Muro X, Tirado OM. Targeted therapies in sarcomas: challenging the challenge. Sarcoma 2012; 2012:626094. [PMID: 22701332 PMCID: PMC3372278 DOI: 10.1155/2012/626094] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 03/27/2012] [Indexed: 12/16/2022] Open
Abstract
Sarcomas are a heterogeneous group of mesenchymal malignancies that very often lead to death. Nowadays, chemotherapy is the only available treatment for most sarcomas but there are few active drugs and clinical results still remain very poor. Thus, there is an imperious need to find new therapeutic alternatives in order to improve sarcoma patient's outcome. During the last years, there have been described a number of new molecular pathways that have allowed us to know more about cancer biology and tumorigenesis. Sarcomas are one of the tumors in which more advances have been made. Identification of specific chromosomal translocations, some important pathways characterization such as mTOR pathway or the insulin-like growth factor pathway, the stunning development in angiogenesis knowledge, and brand new agents like viruses have lead to the development of new therapeutic options with promising results. This paper makes an exhaustive review of preclinical and clinical evidence of the most recent targeted therapies in sarcomas and provides a future view of treatments that may lead to improve prognosis of patients affected with this disease.
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Affiliation(s)
- Juan Martín Liberal
- Laboratori d'Oncología Molecular, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain
| | - Laura Lagares-Tena
- Laboratori d'Oncología Molecular, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain
| | - Miguel Sáinz-Jaspeado
- Laboratori d'Oncología Molecular, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain
| | - Silvia Mateo-Lozano
- Nanomedicine Research Program, Molecular Biology and Biochemistry Research Center, CIBBIM-Nanomedicine, Vall d'Hebron Hospital Research Institute, 08035 Barcelona, Spain
| | - Xavier García del Muro
- Laboratori d'Oncología Molecular, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain
| | - Oscar M. Tirado
- Laboratori d'Oncología Molecular, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, 08908 Barcelona, Spain
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Bennani-Baiti IM. Epigenetic and epigenomic mechanisms shape sarcoma and other mesenchymal tumor pathogenesis. Epigenomics 2012; 3:715-32. [PMID: 22126291 DOI: 10.2217/epi.11.93] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Sarcomas comprise a large number of rare, histogenetically heterogeneous, mesenchymal tumors. Cancers such as Ewing's sarcoma, liposarcoma, rhabdomyosarcoma and synovial sarcoma can be generated by the transduction of mesenchymal stem cell progenitors with sarcoma-pathognomonic oncogenic fusions, a neoplastic transformation process accompanied by profound locus-specific and pangenomic epigenetic alterations. The epigenetic activities of histone-modifying and chromatin-remodeling enzymes such as SUV39H1/KMT1A, EZH2/KMT6A and BMI1 are central to epigenetic-regulated transformation, a property we coin oncoepigenic. Sarcoma-specific oncoepigenic aberrations modulate critical signaling pathways that control cell growth and differentiation including several miRNAs, Wnt, PI3K/AKT, Sav-RASSF1-Hpo and regulators of the G1 and G2/M checkpoints of the cell cycle. Herein an overview of the current knowledge of this rapidly evolving field that will undoubtedly uncover additional oncoepigenic mechanisms and yield druggable targets in the near future is discussed.
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Downstream and intermediate interactions of synovial sarcoma-associated fusion oncoproteins and their implication for targeted therapy. Sarcoma 2012; 2012:249219. [PMID: 22550415 PMCID: PMC3329658 DOI: 10.1155/2012/249219] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 01/09/2012] [Indexed: 12/14/2022] Open
Abstract
Synovial sarcoma (SS), an aggressive type of soft tissue tumor, occurs mostly in adolescents and young adults. The origin and molecular mechanism of the development of SS remain only partially known. Over 90% of SS cases are characterized by the t(X;18)(p11.2;q11.2) translocation, which results mainly in the formation of
SS18-SSX1 or SS18-SSX2 fusion genes. In recent years, several reports describing direct and indirect interactions of SS18-SSX1/SSX2 oncoproteins have been published. These reports suggest that the fusion proteins particularly affect the cell growth, cell proliferation, TP53 pathway, and chromatin remodeling mechanisms, contributing to SS oncogenesis. Additional research efforts are required to fully explore the protein-protein interactions of SS18-SSX oncoproteins and the pathways that are regulated by these partnerships for the development of effective targeted therapy.
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Su L, Sampaio AV, Jones KB, Pacheco M, Goytain A, Lin S, Poulin N, Yi L, Rossi FM, Kast J, Capecchi MR, Underhill TM, Nielsen TO. Deconstruction of the SS18-SSX fusion oncoprotein complex: insights into disease etiology and therapeutics. Cancer Cell 2012; 21:333-47. [PMID: 22439931 PMCID: PMC3734954 DOI: 10.1016/j.ccr.2012.01.010] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 11/23/2011] [Accepted: 01/24/2012] [Indexed: 01/27/2023]
Abstract
Synovial sarcoma is a translocation-associated sarcoma where the underlying chromosomal event generates SS18-SSX fusion transcripts. In vitro and in vivo studies have shown that the SS18-SSX fusion oncoprotein is both necessary and sufficient to support tumorigenesis; however, its mechanism of action remains poorly defined. We have purified a core SS18-SSX complex and discovered that SS18-SSX serves as a bridge between activating transcription factor 2 (ATF2) and transducin-like enhancer of split 1 (TLE1), resulting in repression of ATF2 target genes. Disruption of these components by siRNA knockdown or treatment with HDAC inhibitors rescues target gene expression, leading to growth suppression and apoptosis. Together, these studies define a fundamental role for aberrant ATF2 transcriptional dysregulation in the etiology of synovial sarcoma.
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Affiliation(s)
- Le Su
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Arthur V. Sampaio
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Kevin B. Jones
- Department of Orthopaedics and Center for Children’s Cancer Research, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, United States
- Department of Human Genetics and Howard Hughes Medical Institute, University of Utah, Salt Lake City, UT 84112, United States
| | - Marina Pacheco
- Department of Pathology and Laboratory Medicine, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Angela Goytain
- Department of Pathology and Laboratory Medicine, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Shujun Lin
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Neal Poulin
- Department of Pathology and Laboratory Medicine, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Lin Yi
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Fabio M. Rossi
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Juergen Kast
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Mario R. Capecchi
- Department of Human Genetics and Howard Hughes Medical Institute, University of Utah, Salt Lake City, UT 84112, United States
| | - T. Michael Underhill
- Biomedical Research Centre, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Torsten O. Nielsen
- Department of Pathology and Laboratory Medicine, 2222 Health Sciences Mall, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
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Kekeeva TV, Ryazantseva AA, Zavalishina LE, Andreeva YY, Babenko OV, Zaletaev DV, Frank GA. Analysis of SYT/SSX1 and SYT/SSX2 fusion genes in synovial sarcoma. Mol Biol 2011. [DOI: 10.1134/s0026893311040078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ciarapica R, Miele L, Giordano A, Locatelli F, Rota R. Enhancer of zeste homolog 2 (EZH2) in pediatric soft tissue sarcomas: first implications. BMC Med 2011; 9:63. [PMID: 21609503 PMCID: PMC3126730 DOI: 10.1186/1741-7015-9-63] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 05/25/2011] [Indexed: 01/02/2023] Open
Abstract
Soft tissue sarcomas of childhood are a group of heterogeneous tumors thought to be derived from mesenchymal stem cells. Surgical resection is effective only in about 50% of cases and resistance to conventional chemotherapy is often responsible for treatment failure. Therefore, investigations on novel therapeutic targets are of fundamental importance. Deregulation of epigenetic mechanisms underlying chromatin modifications during stem cell differentiation has been suggested to contribute to soft tissue sarcoma pathogenesis. One of the main elements in this scenario is enhancer of zeste homolog 2 (EZH2), a methyltransferase belonging to the Polycomb group proteins. EZH2 catalyzes histone H3 methylation on gene promoters, thus repressing genes that induce stem cell differentiation to maintain an embryonic stem cell signature. EZH2 deregulated expression/function in soft tissue sarcomas has been recently reported. In this review, an overview of the recently reported functions of EZH2 in soft tissue sarcomas is given and the hypothesis that its expression might be involved in soft tissue sarcomagenesis is discussed. Finally, the therapeutic potential of epigenetic therapies modulating EZH2-mediated gene repression is considered.
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Affiliation(s)
- Roberta Ciarapica
- Department of Oncohematology, IRCCS, Ospedale Pediatrico Bambino Gesù, Roma, Italy.
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Frequent methylation of RASSF1A in synovial sarcoma and the anti-tumor effects of 5-aza-2'-deoxycytidine against synovial sarcoma cell lines. J Cancer Res Clin Oncol 2011; 136:17-25. [PMID: 19578875 DOI: 10.1007/s00432-009-0632-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Accepted: 06/16/2009] [Indexed: 01/25/2023]
Abstract
PURPOSE In this study, the methylation status of RASSF1A in synovial sarcomas and the effect of demethylation on synovial sarcoma were examined. METHODS The methylation status in 74 soft tissue sarcomas (STSs) including 21 synovial sarcomas was determined by methylation specific PCR. The effect of the de-methylating agent 5-aza-20-deoxycytidine (5-Aza-dC) on synovial sarcoma was examined using synovial sarcoma cell lines (SYO-1 and HS-SY-II). RESULTS RASSF1A methylation was observed in 10 (47.6%) of 21 synovial sarcomas and in 10 (18.9%) of 53 the other STSs (P = 0.0295). De-methylation of the cells by treatment with 5-Aza-dC induced re-expression of RASSF1A and growth suppression of the cells. The calculated IC50 of 5-Aza-dC against the SYO-1 and the HS-SYII cells were 0.9 and 1.3 lM (96 h), respectively. With twice weekly administration of 1 or 10 mg/kg 5-Aza-dC, the growth of the mouse xenograft tumors of SYO-1 was significantly suppressed in comparison to the controls (P\0.01). CONCLUSION This is the first report showing the anti-tumor effect of 5-Aza-dC on synovial sarcoma. 5-Aza-dC is suggested to have a good therapeutic potential against synovial sarcoma.
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Friedrichs N, Trautmann M, Endl E, Sievers E, Kindler D, Wurst P, Czerwitzki J, Steiner S, Renner M, Penzel R, Koch A, Larsson O, Tanaka S, Kawai A, Schirmacher P, Mechtersheimer G, Wardelmann E, Buettner R, Hartmann W. Phosphatidylinositol-3′-kinase/AKT signaling is essential in synovial sarcoma. Int J Cancer 2011; 129:1564-75. [DOI: 10.1002/ijc.25829] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 11/11/2010] [Indexed: 11/11/2022]
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Mills J, Hricik T, Siddiqi S, Matushansky I. Chromatin structure predicts epigenetic therapy responsiveness in sarcoma. Mol Cancer Ther 2011; 10:313-24. [PMID: 21216937 DOI: 10.1158/1535-7163.mct-10-0724] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To formally explore the potential therapeutic effect of histone deacetylase inhibitors (HDACI) and DNA-methyltransferase inhibitors (DNA-MI) on sarcomas, we treated a large sarcoma cell line panel with five different HDACIs in the absence and presence of the DNA-MI decitabine. We observed that the IC(50) value of each HDACI was consistent for all cell lines whereas decitabine as a single agent showed no growth inhibition at standard doses. Combination HDACI/DNA-MI therapy showed a preferential synergism for specific sarcoma cell lines. Subsequently, we identified and validated (in vitro and in vivo) a two-gene set signature (high CUGBP2; low RHOJ) that associated with the synergistic phenotype. We further uncover that the epigenetic synergism leading to specific upregulation of CDKI p21 in specific cell lines is a function of the differences in the degree of baseline chromatin modification. Finally, we show that these chromatin and gene expression patterns are similarly present in the majority of high-grade primary sarcomas. Our results provide the first demonstration of a gene set that can predict responsiveness to HDACI/DNA-MI and links this responsiveness mechanistically to the baseline chromatin structure.
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Affiliation(s)
- Joslyn Mills
- Department of Pathology, Columbia University, New York, NY, USA
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Olmos D, Tan DSW, Jones RL, Judson IR. Biological rationale and current clinical experience with anti-insulin-like growth factor 1 receptor monoclonal antibodies in treating sarcoma: twenty years from the bench to the bedside. Cancer J 2010; 16:183-94. [PMID: 20526094 DOI: 10.1097/ppo.0b013e3181dbebf9] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Two decades have elapsed since insulin-like growth factor-1 receptor (IGF-1R) signaling was initially implicated in sarcoma biology to the first clinical experience of IGF-1R blockade in sarcoma. During these 21 years, the IGF pathway and its key mediator IGF-1R have been implicated in the genesis, growth, proliferation, metastasis, and resistance to conventional treatment in several sarcoma subtypes. In addition, IGF-1R has been validated, both in vitro and in vivo, as a target for the treatment of sarcoma. Several radiologic and clinical responses to IGF-1R monoclonal antibodies have been reported in Ewing sarcoma patients enrolled in early clinical studies. Furthermore, these therapies were well tolerated, and thus far severe toxicity has been rare. The early clinical evidence of antitumor activity has supported the initiation of various phase II clinical trials in Ewing and other sarcoma subtypes, the results of which are eagerly awaited, as well as studies assessing IGF-1R monoclonal antibodies in combination with traditional cytotoxics or other targeted therapies. Despite these encouraging results, not all patients benefit from IGF-1R inhibition and consequently there is an urgent need for the identification of predictive markers of response.
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Affiliation(s)
- David Olmos
- Sarcoma Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom.
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