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Synovial cell sarcoma

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https://www.readbyqxmd.com/read/28056055/hdac-and-proteasome-inhibitors-synergize-to-activate-pro-apoptotic-factors-in-synovial-sarcoma
#1
Aimée N Laporte, Jared J Barrott, Ren Jie Yao, Neal M Poulin, Bertha A Brodin, Kevin B Jones, T Michael Underhill, Torsten O Nielsen
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...
2017: PloS One
https://www.readbyqxmd.com/read/28045549/curcumin-and-viscum-album-extract-decrease-proliferation-and-cell-viability-of-soft-tissue-sarcoma-cells-an-in-vitro-analysis-of-eight-cell-lines-using-real-time-monitoring-and-colorimetric-assays
#2
K Harati, B Behr, A Daigeler, T Hirsch, F Jacobsen, M Renner, A Harati, C Wallner, M Lehnhardt, M Becerikli
BACKGROUND: The cytostatic effects of the polyphenol curcumin and Viscum album extract (VAE) were assessed in soft-tissue sarcoma (STS) cells. METHODS: Eight human STS cell lines were used: fibrosarcoma (HT1080), liposarcoma (SW872, T778, MLS-402), synovial sarcoma (SW982, SYO1, 1273), and malignant fibrous histiocytoma (U2197). Primary human fibroblasts served as control cells. Cell proliferation, viability, and cell index (CI) were analyzed by BrdU assay, MTT assay, and real-time cell analysis (RTCA)...
January 3, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28039162/infiltration-of-cd8-t-cells-and-expression-of-pd-1-and-pd-l1-in-synovial-sarcoma
#3
Theodore S Nowicki, Ryan Akiyama, Rong Rong Huang, I Peter Shintaku, Xiaoyan Wang, Paul C Tumeh, Arun S Singh, Bartosz Chmielowski, Christopher T Denny, Noah Federman, Antoni Ribas
Tumors expressing programmed death ligand 1 (PD-L1) interact with the corresponding negative-signal generating immune receptor on the surface of CD8 T cells, PD-1, thereby suppressing antitumor activity. Therapeutics blocking this interaction have shown promise in various cancers by restoring functional antitumor T-cell activity. We explored the degree of PD-L1, PD-1, and CD8 expression in a retrospective analysis of 29 clinical synovial sarcoma samples. Quantitative immunohistochemistry and multiplex immunofluorescence were used to determine relative quantification of CD8(+) and PD-1(+) T cells and PD-L1 expression within the intratumor area and the interface between the tumor and the surrounding nontumor tissue (i...
December 30, 2016: Cancer Immunology Research
https://www.readbyqxmd.com/read/28002805/expression-of-psma-in-tumor-neovasculature-of-high-grade-sarcomas-including-synovial-sarcoma-rhabdomyosarcoma-undifferentiated-sarcoma-and-mpnst
#4
Birthe Heitkötter, Marcel Trautmann, Inga Grünewald, Martin Bögemann, Kambiz Rahbar, Heidrun Gevensleben, Eva Wardelmann, Wolfgang Hartmann, Konrad Steinestel, Sebastian Huss
AIMS: PSMA (prostate specific membrane antigen) is physiologically expressed in normal prostate tissue. It is overexpressed in prostate cancer cells and has been suggested as a target for antibody-based radioligand therapy. As PSMA expression so far has not been systematically analyzed in soft tissue tumors, the current study aims at investigating a large cohort of different subtypes. METHODS AND RESULTS: Immunohistochemistry was used to detect PSMA expression in 779 samples of soft tissue tumors and Ewing sarcoma as a primary bone malignancy...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27956588/modeling-synovial-sarcoma-metastasis-in-the-mouse-pi3-lipid-signaling-and-inflammation
#5
Jared J Barrott, Lisa A Kafchinski, Huifeng Jin, Jared W Potter, Sarmishta D Kannan, Robert Kennedy, Tim Mosbruger, Wei-Lien Wang, Jen-Wei Tsai, Dejka M Araujo, Ting Liu, Mario R Capecchi, Alexander J Lazar, Kevin B Jones
Solid tumor metastasis is a complex biology, impinged upon by a variety of dysregulated signaling pathways. PI3'-lipid signaling has been associated with metastasis and inflammation in many cancers, but the relationship between tumor cell-intrinsic PI3'-lipid signaling and inflammatory cell recruitment has remained enigmatic. Elevated PI3'-lipid signaling associates with progression of synovial sarcoma, a deadly soft tissue malignancy initiated by a t(X;18) chromosomal translocation that generates an SS18-SSX fusion oncoprotein...
December 12, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27938592/-clinical-analysis-of-51-cases-with-rare-childhood-soft-tissue-sarcomas
#6
M X Cai, C Pan, Q D Ye, M Zhou, Y J Gao, W T Hu, J Y Tang
Objective: To analyze the clinical characteristics and prognosis of rare soft tissue sarcomas. Method: Clinical data of 51 patients with rare soft tissue sarcomas including fibrosarcoma, synovial sarcoma, extrarenal rhabdoid tumor, alveolar soft part sarcoma, desmoplastic small round cell tumor and undifferentiated sarcoma in children and adolescents, diagnosed at Shanghai Children's Medical Center from June 1998 to December 2013, were retrospectively analyzed. All types were treated with the same strategy and chemotherapy regimens...
December 2, 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/27928465/gene-expression-and-pathway-analysis-of-ctnnb1-in-cancer-and-stem-cells
#7
Shihori Tanabe, Takeshi Kawabata, Kazuhiko Aoyagi, Hiroshi Yokozaki, Hiroki Sasaki
AIM: To investigate β-catenin (CTNNB1) signaling in cancer and stem cells, the gene expression and pathway were analyzed using bioinformatics. METHODS: The expression of the catenin β 1 (CTNNB1) gene, which codes for β-catenin, was analyzed in mesenchymal stem cells (MSCs) and gastric cancer (GC) cells. Beta-catenin signaling and the mutation of related proteins were also analyzed using the cBioPortal for Cancer Genomics and HOMology modeling of Complex Structure (HOMCOS) databases...
November 26, 2016: World Journal of Stem Cells
https://www.readbyqxmd.com/read/27914109/bcor-upregulation-in-a-poorly-differentiated-synovial-sarcoma-with-ss18l1-ssx1-fusion-a-pathologic-and-molecular-pitfall
#8
Yu-Chien Kao, Yun-Shao Sung, Lei Zhang, Samuel Kenan, Samuel Singer, William D Tap, David Swanson, Brendan C Dickson, Cristina R Antonescu
The diagnosis of poorly differentiated synovial sarcoma (PD-SS) may be challenging due to overlapping morphologic features with other undifferentiated round cell sarcomas (URCS). Particularly relevant is the histologic overlap and shared BCOR overexpression between a subset of SS and URCS with various BCOR genetic abnormalities. Here we report a case of PD-SS lacking the canonical SS18-SSX gene fusion, but showing strong BCOR immunoreactivity and BCOR gene abnormalities by FISH which were misinterpreted as a URCS with BCOR gene rearrangements...
December 3, 2016: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/27909727/anti%C3%A2-proliferative-activity-of-epigallocatechin%C3%A2-3%C3%A2-gallate-and-silibinin-on-soft-tissue-sarcoma-cells
#9
Kamran Harati, Björn Behr, Christoph Wallner, Adrien Daigeler, Tobias Hirsch, Frank Jacobsen, Marcus Renner, Ali Harati, Marcus Lehnhardt, Mustafa Becerikli
Disseminated soft tissue sarcomas (STS) present a therapeutic dilemma. The first-line cytostatic doxorubicin demonstrates a response rate of 30% and is not suitable for elderly patients with underlying cardiac disease, due to its cardiotoxicity. Well‑tolerated alternative treatment options, particularly in palliative situations, are rare. Therefore, the present study assessed the anti‑proliferative effects of the natural compounds epigallocatechin-3-gallate (EGCG), silibinin and noscapine on STS cells. A total of eight different human STS cell lines were used in the study: Fibrosarcoma (HT1080), liposarcoma (SW872, T778 and MLS‑402), synovial sarcoma (SW982, SYO1 and 1273) and pleomorphic sarcoma (U2197)...
January 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27897164/hmgb1-mediated-autophagy-decreases-sensitivity-to-oxymatrine-in-sw982-human-synovial-sarcoma-cells
#10
Yongsong Cai, Peng Xu, Le Yang, Ke Xu, Jialin Zhu, Xiaoqing Wu, Congshan Jiang, Qiling Yuan, Bo Wang, Yuanbo Li, Yusheng Qiu
Oxymatrine (OMT) is a type of alkaloid extracted from a traditional Chinese medicinal herb, Sophora flavescens. Although the antitumor activities of OMT have been observed in various cancers, there are no reports regarding the effects of OMT on human synovial sarcoma. In the present study, we analyzed the antitumor activities of OMT in SW982 human synovial sarcoma cells and determine whether high mobility group box protein 1 (HMGB1)-mediated autophagy was associated with its therapeutic effects. We found that OMT exhibited antitumor activity in SW982 cells and facilitated increases in autophagy...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895882/primary-pleural-synovial-sarcoma-with-metastatic-cardiac-involvement-a-case-report
#11
Ji-Hye Won, Susie Chin, Jai Soung Park, Sang Hyun Paik, Heon Lee, Jang Gyu Cha, Hwa Kyoon Shin, Eun Suk Koh
Primary pleuropulmonary synovial sarcomas are rare soft tissue malignancies; combined metastatic involvement of the heart is extremely rare. In this case report, a 17-year-old female presented with a history of chest pain. Chest radiographs revealed a round mass in the left upper hemithorax, and computed tomography (CT) showed a well-defined heterogeneous enhancing mass abutting the pleura. A core needle biopsy revealed malignant spindle cells. Surgical resection was performed, and a final diagnosis of primary pleural synovial sarcoma, monophasic fibrous type, was made...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27879517/dux4-immunohistochemistry-is-a-highly-sensitive-and-specific-marker-for-cic-dux4-fusion-positive-round-cell-tumor
#12
Bradford Siegele, Jon Roberts, Jennifer O Black, Erin Rudzinski, Sara O Vargas, Csaba Galambos
The histologic differential diagnosis of pediatric and adult round cell tumors is vast and includes the recently recognized entity CIC-DUX4 fusion-positive round cell tumor. The diagnosis of CIC-DUX4 tumor can be suggested by light microscopic and immunohistochemical features, but currently, definitive diagnosis requires ancillary genetic testing such as conventional karyotyping, fluorescence in situ hybridization, or molecular methods. We sought to determine whether DUX4 expression would serve as a fusion-specific immunohistochemical marker distinguishing CIC-DUX4 tumor from potential histologic mimics...
November 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27779808/functional-and-therapeutic-relevance-of-hepatocyte-growth-factor-c-met-signaling-in-synovial-sarcoma
#13
Yoshinori Imura, Takaaki Nakai, Shutaro Yamada, Hidetatsu Outani, Satoshi Takenaka, Kenichiro Hamada, Nobuhito Araki, Kazuyuki Itoh, Hideki Yoshikawa, Norifumi Naka
Synovial sarcoma (SS) is an aggressive soft tissue sarcoma with a poor prognosis and, thus, novel therapeutic strategies for SS are urgently required. In the present study, we investigated the functional and therapeutic relevance of hepatocyte growth factor (HGF)/c-MET signaling in SS. Both HGF and c-MET were highly expressed in Yamato-SS cells, resulting in activation of c-MET and its downstream AKT and extracellular signal-regulated kinase signaling pathways, whereas c-MET was expressed but not activated in SYO-1 or HS-SY-II cells...
December 2016: Cancer Science
https://www.readbyqxmd.com/read/27774755/fine-needle-aspiration-biopsy-of-prostate-synovial-sarcoma-a-case-report-and-review-of-the-literature
#14
Sara Maleki, Antonio Cajigas, Jason Moss, K H Ramesh, Samer Khader
We describe a case of synovial sarcoma originating from prostate gland. The diagnosis was confirmed by fluorescent in situ hybridization analysis (FISH) for SYT rearrangement on the cell block. Synovial sarcoma is a high grade soft tissue malignancy with exceedingly rare involvement of genitourinary tract. However this entity should be considered in the differential diagnosis when dealing with aspiration biopsies of particularly deep seated lesions with spindle cell or small round blue cell cytomorphology. Diagn...
October 24, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27753659/expression-of-tle-1-and-cd99-in-carcinoma-pitfalls-in-diagnosis-of-synovial-sarcoma
#15
Daniel J Zaccarini, Xiaobing Deng, Jamie Tull, Charlene Maciak, Alfredo L Valente, Shengle Zhang
The characteristic immunoprofile for the diagnosis of synovial sarcoma, a neoplasm of unclear tissue origin, is expression of transducer-like enhancer of split 1 (TLE-1), CD99, partial expression of cytokeratin, and epithelial membrane antigen by immunohistochemistry (IHC). Diagnostic dilemma or misdiagnosis can occur due to overlap in IHC and morphology with carcinomas, and particularly poorly differentiated and metastatic tumors. The frequency of TLE-1 and CD99 expression in carcinomas by IHC has not been previously assessed...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27697479/primary-orbital-synovial-sarcoma-a-clinicopathologic-review-with-a-differential-diagnosis-and-discussion-of-molecular-genetics
#16
Anna M Stagner, Frederick A Jakobiec, Aaron Fay
Synovial sarcoma (SS) is a soft tissue sarcoma of the extremities developing in young adults that has rarely been reported in the orbit. SS is associated with a unique translocation, resulting in an SYT-SSX fusion gene. We analyze seven published periocular cases, together with the current one, to gain a better appreciation of the features of the tumor in this location and to compare the findings with those derived from non-ophthalmic studies. A 31-year-old woman developed an inferior orbital mass after experiencing periorbital and hemifacial pain for more than a decade...
September 30, 2016: Survey of Ophthalmology
https://www.readbyqxmd.com/read/27684804/a-case-report-of-pancreatic-metastasis-from-synovial-sarcoma-successfully-treated-by-metastasectomy-with-adjuvant-chemotherapy
#17
Yuki Makino, Minoru Shigekawa, Tadashi Kegasawa, Takahiro Suda, Teppei Yoshioka, Kiyoshi Iwahashi, Kenji Ikezawa, Ryotaro Sakamori, Takayuki Yakushijin, Jun Kajihara, Yoshito Tomimaru, Hidetoshi Eguchi, Yoshinori Imura, Hidetatsu Outani, Norifumi Naka, Keiichiro Honma, Eiichi Morii, Tomohide Tatsumi, Naoki Hiramatsu, Tetsuo Takehara
INTRODUCTION: Synovial sarcoma is a malignant soft tissue sarcoma which arises near joints. The most frequent metastasis sites of synovial sarcoma are the lungs, lymph nodes, and bone. Pancreatic metastasis is quite rare; only 3 cases have been reported worldwide to date. We herein present the 4th case of pancreatic metastasis from synovial sarcoma. METHODS AND RESULTS: A 32-year-old man underwent extended excision of synovial sarcoma in the left pelvis and femur in 2009...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27666549/-interventional-bronchoscopy-for-the-treatment-of-pulmonary-sarcoma
#18
Hongwu Wang, Nan Zhang, Dongmei Li, Hang Zou, Jieli Zhang, Yunzhi Zhou, Xiuyun Bai
BACKGROUND: Pulmonary sarcoma is a rare malignant tumor in soft tissues. Resection is the preferred option to treat this tumor. The aim of this study is to explore the effect of interventional bronchoscopies in the treatment of pulmonary sarcoma if the patient is inoperable. METHODS: Sixteen cases with pulmonary sarcoma were retrospectively reviewed in our hospital from November 2008 to July 2014. The mean age was (53.1±5.4) years old. Rigid bronchoscopy was applied for the first procedure with general anesthesia, and electronic bronchoscopy was used for the second procedure or slight patients...
September 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/27639272/lhrh-receptor-expression-in-sarcomas-of-bone-and-soft-tissue
#19
Chenthuran Deivaraju, H Thomas Temple, Norman Block, Philip Robinson, Andrew V Schally
AIM: Luteinizing hormone releasing hormone (LHRH) is a neurohormone, secreted by the hypothalamus, which regulates the secretion of gonadotropins, luteinizing hormone (LH) and follicle stimulating hormone (FSH) from the pituitary. LHRH acts by binding to receptors located in the pituitary gland. These receptors (LHRH receptors) have also been found in the cytoplasm of many tumor cells that involve both the reproductive and non-reproductive organs. These receptors have been demonstrated in prostate and breast cancers, endometrial carcinomas, renal cell carcinoma, lymphoma, carcinoma of liver, pancreas and skin...
November 1, 2016: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/27621098/primary-mediastinal-synovial-sarcoma-a-rare-case-report
#20
Reza Ershadi, Mohamadbagher Rahim, Hamidreza Davari
INTRODUCTION: Synovial sarcomas commonly occur in the extremities of young adults. A primary occurrence in the mediastinum is very rare with only a few reported cases in the world literature. We report a case of mediastinal synovial sarcoma. This paper is about a 47-year-old male who presented with retrosternal chest pain and shortness of breath on exertion. Imaging showed an anterior mediastinal mass. Pathological examination of the resected mass showed a biphasic neoplasm with a spindle cell component admixed with gland-like elements...
2016: International Journal of Surgery Case Reports
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