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Synovial cell sarcoma

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https://www.readbyqxmd.com/read/29225052/supersulfated-low-molecular-weight-heparin-synergizes-with-igf1r-ir-inhibitor-to-suppress-synovial-sarcoma-growth-and-metastases
#1
Giuliana Cassinelli, Laura Dal Bo, Enrica Favini, Denis Cominetti, Sabina Pozzi, Monica Tortoreto, Michelandrea De Cesare, Daniele Lecis, Eugenio Scanziani, Lucia Minoli, Annamaria Naggi, Israel Vlodavsky, Nadia Zaffaroni, Cinzia Lanzi
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...
December 7, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29209034/na-entry-through-heteromeric-trpc4-c1-channels-mediates-englerin-a-induced-cytotoxicity-in-synovial-sarcoma-cells
#2
Katsuhiko Muraki, Kaori Ohnishi, Akiho Takezawa, Hiroka Suzuki, Noriyuki Hatano, Yukiko Muraki, Nurasyikin Hamzah, Richard Foster, Herbert Waldmann, Peter Nussbaumer, Mathias Christmann, Robin S Bon, David J Beech
The sesquiterpene (-)Englerin A (EA) is an organic compound from the plant Phyllanthus engleri which acts via heteromeric TRPC4/C1 channels to cause cytotoxicity in some types of cancer cell but not normal cells. Here we identified selective cytotoxicity of EA in human synovial sarcoma cells (SW982 cells) and investigated the mechanism. EA induced cation channel current (Icat) in SW982 cells with biophysical characteristics of heteromeric TRPC4/C1 channels. Inhibitors of homomeric TRPC4 channels were weak inhibitors of the Icat and EA-induced cytotoxicity whereas a potent inhibitor of TRPC4/C1 channels (Pico145) strongly inhibited Icat and cytotoxicity...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29202462/paracrine-osteoprotegerin-and-%C3%AE-catenin-stabilization-support-synovial-sarcomagenesis-in-periosteal-cells
#3
Jared J Barrott, Benjamin E Illum, Huifeng Jin, Matthew L Hedberg, Yanliang Wang, Allie Grossmann, Malay Haldar, Mario R Capecchi, Kevin B Jones
Synovial sarcoma (SS) is an aggressive soft-tissue sarcoma that is often discovered during adolescence and young adulthood. Despite the name, synovial sarcoma does not typically arise from a synoviocyte but instead arises in close proximity to bones. Previous work demonstrated that mice expressing the characteristic SS18-SSX fusion oncogene in myogenic factor 5-expressing (Myf5-expressing) cells develop fully penetrant sarcomagenesis, suggesting skeletal muscle progenitor cell origin. However, Myf5 is not restricted to committed myoblasts in embryos but is also expressed in multipotent mesenchymal progenitors...
November 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29200688/round-cell-tumors-classification-and-immunohistochemistry
#4
REVIEW
Shweta Sharma, R Kamala, Divya Nair, T Raju Ragavendra, Swapnil Mhatre, Robin Sabharwal, Basanta Kumar Choudhury, Vivek Rana
Round cell tumors as the name suggest are comprised round cells with increased nuclear-cytoplasmic ratio. This group of tumor includes entities such as peripheral neuroectodermal tumor, rhabdomyosarcoma, synovial sarcoma, non-Hodgkin's lymphoma, neuroblastoma, hepatoblastoma, Wilms' tumor, and desmoplastic small round cell tumor. These round cells tumors are characterized by typical histological pattern, immunohistochemical, and electron microscopic features that can help in differential diagnosis. The present article describes the classification and explains the histopathology and immunohistochemistry of some important round cell tumors...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29191657/extracellular-vesicle-encapsulated-microrna-761-enhances-pazopanib-resistance-in-synovial-sarcoma
#5
Kumiko Shiozawa, Ji Shuting, Yusuke Yoshioka, Takahiro Ochiya, Tadashi Kondo
The development of drug resistance in tumor cells leads to relapse and distant metastasis. Secreted microRNAs (miRNAs) enclosed in extracellular vesicles (EVs) can act as intercellular messengers. The objective of our study was to elucidate the role of secreted miRNAs to better understand the regulatory network underlying pazopanib-resistance in synovial sarcoma cells. We performed a comprehensive analysis of secreted miRNA abundance in pazopanib treated/untreated synovial sarcoma cells from four different cell lines (SYO-1, HS-SYII, 1273/99, and YaFuSS) using microarray technology, and discovered miR-761 in EVs as a potential biomarker of pazopanib-resistance in synovial sarcoma...
November 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29191397/the-inhibitory-effect-of-aconiti-sinomontani-radix-extracts-on-the-proliferation-and-migration-of-human-synovial-fibroblast-cell-line-sw982
#6
Xue Deng, Lu-Ping Zheng, Zhen-Qiang Mu, Rui Lai, Guo-Ping Niu, Liang-Ping Tu, Di Zhu, Yan-Qiu Liu
ETHNOPHARMACOLOGICAL RELEVANCE: Aconiti Sinomontani Radix is frequently used in the treatment of Bi syndrome in traditional Chinese medicine. Several reports indicate that Aconiti Sinomontani Radix has therapeutic effects for rheumatoid arthritis (RA). However, the cellular mode of action is still unclear. To investigate the effect of alkaloid extracts of Aconiti Sinomontani Radix on proliferation and migration of human synovial sarcoma SW982 cells as well as the molecular mechanism underlying...
November 27, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29116117/circulating-microrna-92b-3p-as-a-novel-biomarker-for-monitoring-of-synovial-sarcoma
#7
Koji Uotani, Tomohiro Fujiwara, Aki Yoshida, Shintaro Iwata, Takuya Morita, Masahiro Kiyono, Suguru Yokoo, Toshiyuki Kunisada, Ken Takeda, Joe Hasei, Kunihiko Numoto, Yutaka Nezu, Tsukasa Yonemoto, Takeshi Ishii, Akira Kawai, Takahiro Ochiya, Toshifumi Ozaki
The lack of useful biomarkers is a crucial problem for patients with soft tissue sarcomas (STSs). Emerging evidence has suggested that circulating microRNAs (miRNAs) in body fluids have novel impact as biomarkers for patients with malignant diseases, but their significance in synovial sarcoma (SS) patients remains unknown. Initial global miRNA screening using SS patient serum and SS cell culture media identified a signature of four upregulated miRNAs. Among these candidates, miR-92b-3p secretion from SS cells was confirmed, which was embedded within tumour-derived exosomes rather than argonaute-2...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29100385/histone-deacetylase-inhibitors-vorinostat-and-panobinostat-induce-g1-cell-cycle-arrest-and-apoptosis-in-multidrug-resistant-sarcoma-cell-lines
#8
Eva Bernhart, Nicole Stuendl, Heike Kaltenegger, Christian Windpassinger, Nicholas Donohue, Andreas Leithner, Birgit Lohberger
Synovial sarcoma and high grade chondrosarcoma are characterized by their lack of response to conventional cytotoxic chemotherapy, the tendency to develop lung metastases, and low survival rates. Research within the field prioritizes the development and expansion of new treatment options for dealing with unresectable or metastatic diseases. Numerous clinical trials using histone deacetylases inhibitors (HDACi) have shown specific efficacy as an active antitumor agent for treating a variety of solid tumors. However, as of yet the effect of different HDACi on synovial- and chondrosarcoma cells has not been investigated...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29084055/satb2-and-tle1-expression-in-bcor-ccnb3-ewing-like-sarcoma-mimicking-small-cell-osteosarcoma-and-poorly-differentiated-synovial-sarcoma
#9
David Creytens
No abstract text is available yet for this article.
October 27, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29050367/expression-and-clinical-association-of-programmed-cell-death-1-programmed-death-ligand-1-and-cd8-lymphocytes-in-primary-sarcomas-is-subtype-dependent
#10
Anke E M van Erp, Yvonne M H Versleijen-Jonkers, Melissa H S Hillebrandt-Roeffen, Laurens van Houdt, Mark A J Gorris, Laura S van Dam, Thomas Mentzel, Marije E Weidema, C Dilara Savci-Heijink, Ingrid M E Desar, Hans H M Merks, Max M van Noesel, Janet Shipley, Winette T A van der Graaf, Uta E Flucke, Friederike A G Meyer-Wentrup
In order to explore the potential of immune checkpoint blockade in sarcoma, we investigated expression and clinical relevance of programmed cell death-1 (PD-1), programmed death ligand-1 (PD-L1) and CD8 in tumors of 208 sarcoma patients. Primary untreated osteosarcoma (n = 46), Ewing sarcoma (n = 32), alveolar rhabdomyosarcoma (n = 20), embryonal rhabdomyosarcoma (n = 77), synovial sarcoma (n = 22) and desmoplastic small round cell tumors (DSRCT) (n = 11) were examined immunohistochemically. PD-L1 expression was predominantly detected in alveolar and embryonal rhabdomyosarcomas (15% and 16%, respectively)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29039456/construction-of-a-bcl-2-shrna-expression-vector-and-its-effect-on-the-mitochondrial-apoptosis-pathway-in-sw982-cells
#11
Weidong Zhang, Xinjie Xue, Teng Fu
Apoptosis is considered to serve an important role in the pathogenesis of rheumatoid arthritis. The aim of the present study was to construct Bcl-2-short hairpin (sh)RNA expression vectors and transfect them into human synovial sarcoma SW982 cells, in order to screen for an effective interference sequence and analyze the effects of this interference on the expression levels of Bcl-2 and other molecules associated with the mitochondrial apoptosis pathway. Three different shRNAs (Bcl-2-sh1, 2 and 3) were designed according to the human Bcl-2 mRNA target sequence and were transformed into competent DH5α Escherichia coli cells following the construction of an expression vector, which was then transfected into SW982 cells...
September 27, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29038346/atr-is-a-therapeutic-target-in-synovial-sarcoma
#12
Samuel E Jones, Emmy D G Fleuren, Jessica Frankum, Asha Konde, Chris T Williamson, Dragomir B Krastev, Helen N Pemberton, James Campbell, Aditi Gulati, Richard Elliott, Malini Menon, Joanna L Selfe, Rachel Brough, Stephen J Pettitt, Wojciech Niedzwiedz, Winette T A van der Graaf, Janet Shipley, Alan Ashworth, Christopher J Lord
Synovial sarcoma (SS) is an aggressive soft-tissue malignancy characterised by expression of SS18-SSX fusions, where treatment options are limited. To identify therapeutically actionable genetic dependencies in SS, we performed a series of parallel, high-throughput small interfering RNA (siRNA) screens and compared genetic dependencies in SS tumor cells to those in >130 non-SS tumour cell lines. This approach revealed a reliance of SS tumor cells upon the DNA damage response serine/threonine protein kinase ATR...
October 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/29033534/multicellular-tumor-spheroids-of-human-uveal-melanoma-induce-genes-associated-with-anoikis-resistance-lipogenesis-and-ssxs
#13
Charlotte Ness, Øystein Garred, Nils A Eide, Theresa Kumar, Ole K Olstad, Thomas P Bærland, Goran Petrovski, Morten C Moe, Agate Noer
PURPOSE: Uveal melanoma (UM) has a high propensity for metastatic spread, and approximately 40-50% of patients die of metastatic disease. Metastases can be found at the time of diagnosis but also several years after the tumor has been removed. The survival of disseminated cancer cells is known to be linked to anchorage independence, anoikis resistance, and an adaptive cellular metabolism. The cultivation of cancer cells as multicellular tumor spheroids (MCTS) by anchorage-independent growth enriches for a more aggressive phenotype...
2017: Molecular Vision
https://www.readbyqxmd.com/read/29025595/first-cloned-human-immortalized-adipose-derived-mesenchymal-stem-cell-line-with-chimeric-ss18-ssx1-gene-ss-iasc
#14
Dóra Mihály, Zsolt Matula, Yi-Che Changchien, Gergő Papp, Péter Tátrai, Zoltán Sápi
The SS18-SSX chimeric gene is unique to synovial sarcoma. Multiple model systems including mouse cell lines expressing SS18-SSX, and genetically engineered mouse models of synovial sarcoma have been developed to elucidate the role of the chimeric gene in synovial sarcomagenesis. Although several cell lines stably expressing human SS18-SSX exist, there is an ongoing need for cell culture models enabling researchers to investigate the molecular mechanism of SS18-SSX action in a relevant cellular context. Here we report the establishment of a novel SS18-SSX1-expressing cell line created from immortalized human adipose tissue-derived mesenchymal stem cells via lentiviral transduction of the chimeric gene...
October 2017: Cancer Genetics
https://www.readbyqxmd.com/read/29020987/shcbp1-promotes-synovial-sarcoma-cell-metastasis-via-targeting-tgf-%C3%AE-1-smad-signaling-pathway-and-is-associated-with-poor-prognosis
#15
Changliang Peng, Hui Zhao, Yan Song, Wei Chen, Xiaoying Wang, Xiaoli Liu, Cheng Zhang, Jie Zhao, Ji Li, Guanghui Cheng, Dongjin Wu, Chunzheng Gao, Xiuwen Wang
BACKGROUND: Our previous studies reported that SHC SH2-domain binding protein 1 (SHCBP1) functions as an oncogene via promoting cell proliferations in synovial sarcoma (SS) cells. However, whether SHCBP1 has any effect on tumor metastasis remains unexplored. METHODS: The expression of SHCBP1 was analyzed in 76 SS tissues and two SS cell lines by immunohistochemistry and real-time RT-PCR. The relationship between SHCBP1 expression and the clinicopathological features of SS was investigated...
October 11, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28984347/tumorous-conditions-of-the-hand-a-retrospective-review-of-402-cases
#16
Ali Cavit, Haluk Özcanli, Mesut Sançmiş, Güzide Ayşe Ocak, Elif İnanç Gürer
OBJECTIVE: Knowledge concerning treatment and care of hand lesions is often based on small case series, case reports and a few large general case series. The aim of this study is to present our experience with hand tumors' and tumor-like lesions' incidence, age range and localizations. MATERIAL AND METHOD: Between 2006-2016, 402 patients operated and histopathologically diagnosed with bone and soft tissue tumorous conditions of the hand were evaluated retrospectively...
October 6, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28926357/first-in-human-treatment-with-a-dendritic-cell-targeting-lentiviral-vector-expressing-ny-eso-1-lv305-induces-deep-durable-response-in-refractory-metastatic-synovial-sarcoma-patient
#17
Seth M Pollack, Hailing Lu, Sacha Gnjatic, Neeta Somaiah, Ryan B O'Malley, Robin L Jones, Frank J Hsu, Jan Ter Meulen
Effective induction of antitumor T cells is a pivotal goal of cancer immunotherapy. To this end, lentiviral vectors (LV) are uniquely poised to directly prime CD8 T-cell responses via transduction of dendritic cells in vivo and have shown promise as active cancer therapeutics in preclinical tumor models. However, until now, significant barriers related to production and regulation have prevented their widespread use in the clinic. We developed LV305, a dendritic cell-targeting, integration-deficient, replication incompetent LV from the ZVex platform, encoding the full-length cancer-testis antigen NY-ESO-1...
September 18, 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/28898989/role-of-histone-h3k27-trimethylation-loss-as-a-marker-for-malignant-peripheral-nerve-sheath-tumor-in-fine-needle-aspiration-and-small-biopsy-specimens
#18
Jeffrey K Mito, Xiaohua Qian, Leona A Doyle, Jason L Hornick, Vickie Y Jo
Objectives: Accurate diagnosis of malignant peripheral nerve sheath tumor (MPNST) is often challenging on fine-needle aspiration (FNA) or core needle biopsy. Recurrent mutations in EED and SUZ12, which encode subunits of polycomb repressive complex 2 (PRC2), have been identified in 70% to 92% of MPNSTs; PRC2 inactivation leads to loss of trimethylation of lysine 27 of histone H3 (H3K27me3). We evaluated the utility of H3K27me3 immunohistochemistry for distinguishing MPNST from its cytomorphologic mimics...
August 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28892972/renal-synovial-sarcoma-in-a-young-pregnant-lady-a-case-report-and-clinico-pathological-profile
#19
Gregory Pathrose, Nirmal Thampi John, Pradeep Hariharan
Synovial sarcoma is a soft tissue neoplasm with clearly defined histologic, immunohistochemical and molecular features. These tumours usually arise in the extremities of young adults. Their occurrence in the kidney is extremely rare. A 25-year-old pregnant lady in her first trimester was incidentally found to have a left renal mass on perinatal ultrasonography. MRI showed a well encapsulated, heterointense mass replacing the left kidney. Following medical termination of her pregnancy, a radical nephrectomy was performed...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891906/first-in-human-treatment-with-a-dendritic-cell-targeting-lentiviral-vector-expressing-ny-eso-1-lv305-induces-deep-durable-response-in-refractory-metastatic-synovial-sarcoma-patient
#20
Seth M Pollack, Hailing Lu, Sacha Gnjatic, Neeta Somaiah, Ryan B O'Malley, Robin L Jones, Frank J Hsu, Jan Ter Meulen
Effective induction of antitumor T cells is a pivotal goal of cancer immunotherapy. To this end, lentiviral vectors (LV) are uniquely poised to directly prime CD8 T-cell responses via transduction of dendritic cells in vivo and have shown promise as active cancer therapeutics in preclinical tumor models. However, until now, significant barriers related to production and regulation have prevented their widespread use in the clinic. We developed LV305, a dendritic cell-targeting, integration-deficient, replication incompetent LV from the ZVex platform, encoding the full-length cancer-testis antigen NY-ESO-1...
October 2017: Journal of Immunotherapy
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