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Synovial sarcoma

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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
#1
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
#2
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
#3
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
#4
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
#5
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/29022281/isolated-limb-perfusion-and-infusion-for-extremity-soft-tissue-sarcoma-a-contemporary-systematic-review-and-meta-analysis
#6
Madalyn G Neuwirth, Yun Song, Andrew J Sinnamon, Douglas L Fraker, Jonathan S Zager, Giorgos C Karakousis
BACKGROUND: Isolated limb perfusion (ILP) and isolated limb infusion (ILI) have been variably used in recent years for the treatment of locally advanced or marginally resectable extremity soft tissue sarcomas (STSs). We performed a systematic review and meta-analysis of contemporary studies to further characterize treatment patterns and outcomes. METHODS: PubMed was queried for articles published in or after the year 2000, in the English language, with > 10 patients, and with adequate outcome data following ILP/ILI...
October 11, 2017: Annals of Surgical Oncology
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
#7
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/28988646/pembrolizumab-in-advanced-soft-tissue-sarcoma-and-bone-sarcoma-sarc028-a-multicentre-two-cohort-single-arm-open-label-phase-2-trial
#8
Hussein A Tawbi, Melissa Burgess, Vanessa Bolejack, Brian A Van Tine, Scott M Schuetze, James Hu, Sandra D'Angelo, Steven Attia, Richard F Riedel, Dennis A Priebat, Sujana Movva, Lara E Davis, Scott H Okuno, Damon R Reed, John Crowley, Lisa H Butterfield, Ruth Salazar, Jaime Rodriguez-Canales, Alexander J Lazar, Ignacio I Wistuba, Laurence H Baker, Robert G Maki, Denise Reinke, Shreyaskumar Patel
BACKGROUND: Patients with advanced sarcomas have a poor prognosis and few treatment options that improve overall survival. Chemotherapy and targeted therapies offer short-lived disease control. We assessed pembrolizumab, an anti-PD-1 antibody, for safety and activity in patients with advanced soft-tissue sarcoma or bone sarcoma. METHODS: In this two-cohort, single-arm, open-label, phase 2 study, we enrolled patients with soft-tissue sarcoma or bone sarcoma from 12 academic centres in the USA that were members of the Sarcoma Alliance for Research through Collaboration (SARC)...
October 4, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28984347/tumorous-conditions-of-the-hand-a-retrospective-review-of-402-cases
#9
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/28948118/primary-synovial-sarcoma-of-external-auditory-canal-a-case-report
#10
Aarani Devi, Krishnannair L L Jayakumar
Synovial sarcoma is a rare malignant tumor of mesenchymal origin. Primary synovial sarcoma of the ear is extremely rare and to date only two cases have been published in English medical literature. Though the tumor is reported to have an aggressive nature, early diagnosis and treatment may improve the outcome. Here, we report a rare case of synovial sarcoma of the external auditory canal in an 18-year-old male who was managed by chemotherapy and referred for palliation due to tumor progression.
July 20, 2017: Curēus
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
#11
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/28905190/primary-synovial-sarcoma-of-the-left-heart-with-large-amount-of-necrotic-tissue
#12
Shusaku Maeda, Hiroshi Takano, Takashi Yamauchi, Kenji Tanaka, Kohta Suzuki, Hiroaki Fushimi, Kohki Shimazu, Yukitoshi Shirakawa
We present a case of primary synovial sarcoma arising from the left heart, an extremely rare occurrence, with a large amount of necrotic tissue, which suggested a poor prognosis. After incomplete tumor resection, chemotherapy and radiation therapy were performed; however, PET/CT findings at 26 months after the operation revealed local recurrence. Although we performed two additional operations following chemotherapy, the patient died from local recurrence at 36 months after the initial operation. In this case of synovial sarcoma arising from the left heart, even though aggressive multimodality therapy was performed, the prognosis was still poor...
September 13, 2017: General Thoracic and Cardiovascular Surgery
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
#13
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/28893028/synovial-sarcoma-of-palmar-aspect-of-hand-and-survival-a-rare-case-report
#14
Tapan Kumar Sahoo, Ipsita Dhal, Saroj Kumar Das, Saroj Kumar Das Majumdar, Dillip Kumar Parida
Synovial sarcomas of the hand are extremely rare entities than most soft tissue sarcomas. The location at finger is further rarer than carpus of the hand. Synovial sarcoma of the hand/finger initially confused with many diagnoses such as myositis, haematoma, synovitis, tendonitis, bursitis, and other inflammatory lesions and therefore needs careful handling of the case with proper evaluation. We report a case of synovial sarcoma of the palmar surface of the right hand at interface of thumb and index finger in a 22-year-old female...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892972/renal-synovial-sarcoma-in-a-young-pregnant-lady-a-case-report-and-clinico-pathological-profile
#15
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
#16
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
https://www.readbyqxmd.com/read/28878027/death-by-hdac%C3%A2-inhibition-in-synovial-sarcoma-cells
#17
Aimée N Laporte, Neal M Poulin, Jared J Barrott, Xiu Qing Wang, Alireza Lorzadeh, Ryan Vander Werff, Kevin B Jones, T Michael Underhill, Torsten O Nielsen
Conventional cytotoxic therapies for synovial sarcoma provide limited benefit, and no drugs specifically targeting the causative SS18-SSX fusion oncoprotein are currently available. Histone deacetylase (HDAC) inhibition has been shown in previous studies to disrupt the synovial sarcoma oncoprotein complex, resulting in apoptosis. To understand the molecular effects of HDAC inhibition, RNA-Seq transcriptome analysis was undertaken in six human synovial sarcoma cell lines. HDAC inhibition induced pathways of cell cycle arrest, neuronal differentiation and response to oxygen-containing species, effects also observed in other cancers treated with this class of drugs...
September 6, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28871588/primary-pleuropulmonary-synovial-sarcoma-with-brain-metastases-in-a-paediatric-patient-an-unusual-presentation
#18
Pushpak Chandrakant Chirmade, Sonia Parikh, Asha Anand, Harsha Panchal, Apurva Patel, Sandip Shah
Primary lung neoplasms are rare in children. The most common primary lung malignancies in children are pleuropulmonary blastoma and carcinoid tumour. Synovial sarcoma (SS) accounts for approximately 1% of all childhood malignancies. In absolute terms, the SS of the lungs and pleura are extremely rare and pose a diagnostic difficulty. Soft tissue sarcomas usually have a high potential for metastases, however, metastasis to the brain is rare, even in widely disseminated disease, and it has been described only in 3 case reports previously...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28869107/molecular-characterization-of-a-series-of-solitary-fibrous-tumors-including-immunohistochemical-expression-of-stat6-and-natb2-stat6-fusion-transcripts-using-reverse-transcriptase-rt-polymerase-chain-reaction-pcr-technique-an-indian-experience
#19
Bharat Rekhi, Omshree Shetty, Parul Tripathi, Prachi Bapat, Mukta Ramadwar, Jyoti Bajpai, Ajay Puri
A solitary fibrous tumor (SFT) is characterized by a diverse clinicopathologic spectrum. Recent studies have unraveled STAT6 as a useful diagnostic immunohistochemical (IHC) marker for a SFT and NAB2-STAT6 as its specific gene fusion transcript. Thirty-three SFTs were tested for STAT6 immunostaining by polymer detection technique. STAT6 immunoexpression was further graded, based on intensity (mild, moderate and strong) and percentage of immunopositive tumor cells, ranging from 1 to 25%(1+); 26-50%(2+); 51-75%(3+) and in more than 75%(4+) tumor nuclei...
August 26, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28868028/primary-cystic-pleuropulmonary-synovial-sarcoma-presenting-as-recurrent-pneumothorax
#20
Eric D Johnson, Erinn Downs-Kelly, David A Bull, H Evin Gulbahce
Primary pleuropulmonary synovial sarcomas are quite rare, representing 0.1-0.5% of all pulmonary malignancies. We report an entirely cystic monophasic synovial sarcoma in a 25-year-old male who presented with recurrent pneumothorax and no evidence of a mass lesion on imaging. The purpose of this case report is to increase awareness of neoplasms clinically presenting as a pneumothorax with no imagining evidence of a mass-forming lesion and emphasize the significance of fluorescent in situ hybridization testing in nontypical synovial sarcoma cases...
May 2017: Case Reports in Oncology
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