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Synovial cell sarcoma

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https://www.readbyqxmd.com/read/28521631/immunohistochemical-profile-of-myc-protein-in-pediatric-small-round-blue-cell-tumors
#1
Karen M Chisholm, Chandra Krishnan, Amy Heerema-McKenney, Yasodha Natkunam
Deregulation of MYC oncoprotein in cancers can result from multiple oncogenic mechanisms. Although MYC translocations define Burkitt lymphoma and MYC protein expression is a poor prognostic factor in undifferentiated neuroblastomas, the distribution of MYC protein (c-MYC) across other pediatric small round blue cell tumors (SRBCT) has not been well characterized. We undertook this study to assess MYC protein expression in a large cohort of pediatric lymphomas, sarcomas, and other SRBCT. Tissue microarrays containing 302 SRBCT were successfully evaluated by immunohistochemistry using anti-MYC clone Y69, with nuclear positivity scored as 0%, 1%-25%, 26%-50%, 51%-75%, or 76%-100%...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28511645/therapeutic-potential-of-tas-115-via-c-met-and-pdgfr%C3%AE-signal-inhibition-for-synovial-sarcoma
#2
Shutaro Yamada, Yoshinori Imura, Takaaki Nakai, Sho Nakai, Naohiro Yasuda, Keiko Kaneko, Hidetatsu Outani, Satoshi Takenaka, Kenichiro Hamada, Akira Myoui, Nobuhito Araki, Takafumi Ueda, Kazuyuki Itoh, Hideki Yoshikawa, Norifumi Naka
BACKGROUND: The prognosis of synovial sarcoma (SS), an aggressive soft tissue sarcoma, remains poor. We previously reported that c-MET or platelet-derived growth factor receptor α (PDGFRα) signalling pathway is related to SS progression based upon the findings of phospho-receptor tyrosine kinase (RTK) arrays. TAS-115 is a novel c-MET/ vascular endothelial growth factor receptor-targeting tyrosine kinase inhibitor that has been shown to inhibit multiple RTKs. Here we aimed to investigate the therapeutic potential of TAS-115 against SS...
May 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28498445/evaluation-of-expression-of-cancer-stem-cell-markers-and-fusion-gene-in-synovial-sarcoma-insights-into-histogenesis-and-pathogenesis
#3
Yang Zhou, Dongdong Chen, Yan Qi, Ruixue Liu, Shugang Li, Hong Zou, Jiaojiao Lan, Xinxin Ju, Jinfang Jiang, Weihua Liang, Yaoyuan Shen, Lijuan Pang, Feng Li
Synovial sarcoma (SS) is an aggressive soft tissue tumor, with uncertain histological and cellular origin. SYT-SSX is considered to be responsible for sarcoma initiation and progression. The histogenesis and pathogenesis of this tumor are poorly understood, and prognosis of patients of SS is unsatisfactory. Recent studies have shown an association of cancer stem cells with the initiation and development of tumors. We explored immunohistochemical expression level of stem cell associated markers to determine the possible histogenesis and pathogenesis of SS...
May 2, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28463396/t-cell-infiltration-and-clonality-correlate-with-programmed-cell-death-protein-1-and-programmed-death-ligand-1-expression-in-patients-with-soft-tissue-sarcomas
#4
Seth M Pollack, Qianchuan He, Jennifer H Yearley, Ryan Emerson, Marissa Vignali, Yuzheng Zhang, Mary W Redman, Kelsey K Baker, Sara Cooper, Bailey Donahue, Elizabeth T Loggers, Lee D Cranmer, Matthew B Spraker, Y David Seo, Venu G Pillarisetty, Robert W Ricciotti, Benjamin L Hoch, Terrill K McClanahan, Erin Murphy, Wendy M Blumenschein, Steven M Townson, Sharon Benzeno, Stanley R Riddell, Robin L Jones
BACKGROUND: Patients with metastatic sarcomas have poor outcomes and although the disease may be amenable to immunotherapies, information regarding the immunologic profiles of soft tissue sarcoma (STS) subtypes is limited. METHODS: The authors identified patients with the common STS subtypes: leiomyosarcoma, undifferentiated pleomorphic sarcoma (UPS), synovial sarcoma (SS), well-differentiated/dedifferentiated liposarcoma, and myxoid/round cell liposarcoma. Gene expression, immunohistochemistry for programmed cell death protein (PD-1) and programmed death-ligand 1 (PD-L1), and T-cell receptor Vβ gene sequencing were performed on formalin-fixed, paraffin-embedded tumors from 81 patients...
May 2, 2017: Cancer
https://www.readbyqxmd.com/read/28458852/reasons-why-a-second-radiological-opinion-is-advisable-a-case-report-of-a-misreported-crural-synovial-cell-sarcoma
#5
Rocco Severino, Paolo Severino
Synovial sarcoma (SS) is a rare condition that accounts for 5-10% of all soft-tissue sarcomas (STS). SS locates most frequently near the joints, in particular at the lower extremities, but it can also occur in other locations. We report a case of a 42-year-old male complaining of a slow-growth mass on his right thigh, reported as a femoral nerve shwannoma on the basis of the preoperative radiological investigations, which revealed to be a monophasic SS on the histological examination. During the surgical procedure, the assistance of vascular surgeons was required to reconstruct the wall of the femoral vein underlying the tumor, that was pathologically thickened, and communicated with the tumoral capsule...
March 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28438869/correlation-between-expression-of-the-cancer-testis-antigen-kk-lc-1-and-helicobacter-pylori-infection-in-gastric-cancer
#6
Takashi Fukuyama, Nobue Futawatari, Yoshinobu Ichiki, Akiko Shida, Taiga Yamazaki, Yatsushi Nishi, Hiroshi Nonoguchi, Yoshihito Takahashi, Hitoshi Yamazaki, Noritada Kobayashi
BACKGROUND/AIM: Our previous study indicated that Kita-kyushu lung cancer antigen-1 (KK-LC-1) is a cancer/testis antigen (CTA) expressed in 82% of gastric cancer cases. Here, we investigated the relationship between KK-LC-1 expression and Helicobacter pylori infection in Japanese patients with gastric cancer. PATIENTS AND METHODS: We examined CTA expression in 25 surgical gastric cancer specimens and anti-H. pylori IgGs in the serum of each patient. RESULTS: KK-LC-1 was expressed in 80% of tumor samples, markedly higher than melanoma antigen gene (MAGE)-A1, MAGE-A3, MAGE-A4, synovial sarcoma, X breakpoint 4 (SSX4) and New York esophageal squamous cell carcinoma-1 (NY-ESO-1)...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28430874/developmental-sall2-transcription-factor-a-new-player-in-cancer
#7
Viviana E Hermosilla, Matias I Hepp, David Escobar, Carlos Farlas, Elizabeth N Riffo, Ariel F Castro, Roxana Pincheira
SALL2, also known as Spalt-like transcription factor 2, is a member of the SALL family of transcription factors involved in development and conserved through evolution. Since its identification in 1996, findings indicate that SALL2 plays a role in neurogenesis, neuronal differentiation and eye development. Consistently, SALL2 deficiency associates with neural tube defects and coloboma, a congenital eye disease. Relevant to cancer, clinical studies indicate that SALL2 is deregulated in various cancers, and is a specific biomarker for Synovial Sarcoma...
April 18, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28426529/diagnostic-utility-of-pax8-pax2-and-ngfr-immunohistochemical-expression-in-pediatric-renal-tumors
#8
Nicoleta C Arva, Jeffrey Bonadio, Elizabeth J Perlman, Mariana M Cajaiba
Pediatric renal tumors (PRT) with small round blue or spindle cell morphology can be diagnostically challenging and only a limited number of immunohistochemical markers have been documented to help in the diagnosis: paired box (Pax) 2 and nerve growth factor receptor (NGFR) positivity have been demonstrated in Wilms tumor (WT) and clear cell sarcoma of the kidney (CCSK), respectively. However, the immunohistochemical expression of these markers in other PRT remains unknown. This study investigated Pax8, Pax2, and NGFR immunophenotype in a large series of PRT...
April 19, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28426090/oleuropein-down-regulated-il-1%C3%AE-induced-inflammation-and-oxidative-stress-in-human-synovial-fibroblast-cell-line-sw982
#9
Maria Luisa Castejón, Maria Ángeles Rosillo, Tatiana Montoya, Alejandro González-Benjumea, Jose Maria Fernández-Bolaños, Catalina Alarcón-de-la-Lastra
Rheumatoid arthritis (RA) is a chronic and systemic inflammatory autoimmune disease mainly characterized by aggressive hyperproliferation of synovial fibroblasts (SFs). It is accompained by a massive infiltration of inflammatory immune cells inducing progressive matrix degradation, destruction of cartilage and bone erosion through the production of inflammatory mediators. Oleuropein is the most prevalent phenolic component in olive leaves, seed, pulp and peel of unripe olives and is responsible for the characteristic bitter taste of unprocessed olives...
May 24, 2017: Food & Function
https://www.readbyqxmd.com/read/28421710/synovial-sarcoma-metastatic-to-the-parotid-gland-a-possible-pitfall-in-salivary-gland-fine-needle-aspiration-cytology-report-of-a-case-with-immunocytochemical-and-fluorescence-in-situ-hybridization-findings
#10
Franco Fulciniti, Jessica Barizzi, Vittoria Martin, Vittorio Tarallo, Stefano Ermanni
We report one case of metastatic synovial sarcoma (SS) to the parotid gland in a 93-year-old male. The patient had undergone upper left pulmonary lobectomy with mediastinal lymphadenectomy for SS of the lung 5 years before. The cytopathologic presentation and the immunocytochemical findings on the FNA sample were suggestive of a spindle cell myoepithelioma, while a SYT rearrangement was identified by a FISH performed on a cytological smear of the lesion. The diagnosis was further confirmed also by positive immunocytochemical expression of TLE1 on a section from the obtained cell block...
April 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28409421/the-impact-of-microenvironment-on-the-synovial-sarcoma-transcriptome
#11
Huifeng Jin, Jared J Barrott, Matthew G Cable, Michael J Monument, Daniel M Lerman, Kyllie Smith-Fry, Dakota Nollner, Kevin B Jones
Synovial sarcoma (SS) is initiated by a t(X;18) chromosomal translocation and resultant SS18-SSX fusion oncogene. Only a few SS cell lines exist. None has been compared to its source tumor. In order to compare matched tumor and cell line pairs, we performed RNAseq on 3 tumor/cell line pairs from a genetically engineered mouse model of SS, as well as 2 pairs from human SS tumors. Transcriptomes of mouse tumors and derivative cell lines deviated significantly. Differentially expressed genes highlighted inflammatory infiltrates and metabolism...
April 13, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/28386296/high-risk-gastrointestinal-stromal-tumour-gist-and-synovial-sarcoma-display-similar-angiogenic-profiles-a-nude-mice-xenograft-study
#12
Francisco Giner, Isidro Machado, Jose Antonio Lopez-Guerrero, Empar Mayordomo-Aranda, Antonio Llombart-Bosch
BACKGROUND: Gastrointestinal stromal tumour (GIST) is the most common primary mesenchymal tumour of the gastrointestinal tract. Spindle cell monophasic synovial sarcoma (SS) can be morphologically similar. Angiogenesis is a major factor for tumour growth and metastasis. Our aim was to compare the angiogenic expression profiles of high-risk GIST and spindle cell monophasic SS by histological, immunohistochemical and molecular characterisation of the neovascularisation established between xenotransplanted tumours and the host during the initial phases of growth in nude mice...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28384879/primary-sarcomas-of-thyroid-gland-series-of-three-cases-with-brief-review-of-spindle-cell-lesions-of-thyroid
#13
Amita Jain Gupta, Meeta Singh, Poonam Rani, Nita Khurana, Anurag Mishra
Primary Malignant Fibrous Histiocytoma (MFH-T) and Leiomyosarcoma (LMS-T) of the thyroid gland are extremely rare tumors. Very few cases have been reported in the literature. Both entities occur more commonly in women than men. The closest clinical and histological differential diagnosis is anaplastic carcinoma of thyroid. We present three cases of rare primary sarcomas of thyroid gland. Case-1 was a 63-year-old woman and Case-2 was a 52-year-old woman. Both of them presented with a rapidly increasing thyroid mass clinically mimicking anaplastic carcinoma (AC-T)...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28377094/t-cell-target-antigens-across-major-gynecologic-cancers
#14
REVIEW
Alba Rodriguez-Garcia, Nicholas G Minutolo, John M Robinson, Daniel J Powell
Immunotherapies have achieved remarkable success in treating different forms of cancer including melanoma, non-small cell lung carcinoma, bladder cancer, synovial cell sarcoma, and multiple myeloma using immune checkpoint blockade or gene-engineered T-cells. Although gynecologic cancers have not been historically classified as immunogenic tumors, growing evidence has shown that they are in fact able to elicit endogenous antitumor immune responses suggesting that patients with these cancers may benefit from immunotherapy...
April 2, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28350009/activation-of-erk1-2-causes-pazopanib-resistance-via-downregulation-of-dusp6-in-synovial-sarcoma-cells
#15
Nobuhiko Yokoyama, Tomoya Matsunobu, Yoshihiro Matsumoto, Jun-Ichi Fukushi, Makoto Endo, Mihoko Hatano, Akira Nabeshima, Suguru Fukushima, Seiji Okada, Yukihide Iwamoto
Synovial sarcoma (SS) is a rare high-grade malignant mesenchymal tumour with a relatively poor prognosis despite intensive multimodal therapy. Although pazopanib, a multi-kinase inhibitor, is often used for advanced SS, most cases eventually become resistant to pazopanib. In the present study, we investigated the mechanisms of acquired pazopanib resistance in SS. To examine acquired pazopanib resistance, two SS cell lines, SYO-1 and HS-SY-II, were isolated after multiple selection steps with increasing concentrations of pazopanib...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345284/role-of-fine-needle-aspiration-cytology-in-the-diagnosis-of-a-rare-case-of-a-poorly-differentiated-synovial-sarcoma-with-rhabdoid-features-including-treatment-implications
#16
Bharat Rekhi, Omshree Shetty, Mukta Ramadwar, Venkatesh Rangarajan, Jyoti Bajpai
Synovial sarcoma is a high-grade, soft tissue sarcoma that is relatively chemosensitive. Its exact diagnosis is crucial, including differentiation from its closest diagnostic mimic, ie, Ewing sarcoma, in view of different treatment options, including chemotherapy regimens, for both these tumors. A 15-year-old girl presented with a recurrent soft tissue mass in her right popliteal region, which was diagnosed as Ewing sarcoma, based on positive immunoexpression of MIC2/CD99, Fli1 and negative expression of LCA and desmin...
March 27, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28325366/whorling-cellular-perineurioma-a-previously-undescribed-variant-closely-mimicking-monophasic-fibrous-synovial-sarcoma
#17
Michael Michal, Dmitry V Kazakov, Abbas Agaimy, Marta Hosova, Kvetoslava Michalova, Petr Grossmann, Petr Steiner, Faruk Skenderi, Semir Vranic, Michal Michal
The authors present a distinctive perineurioma (PN) variant which morphologically strongly resembles monophasic fibrous synovial sarcoma (MSS). The patients were 3 males and 1 female. The age ranged from 15 to 61years (mean: 44years). Locations included the sole, lower jaw, palm and foot. The tumor size ranged from 1.3cm to 2.5cm in the largest dimension (mean 1.8cm). Morphologically, all tumors had an identical, monotonous appearance. The perineurial cells were closely packed and created a confluent cellular whorls and/or sheets in a scarce stroma, with only focally discernible long, slender cytoplasmic processes typical for perineurial differentiation...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28248726/pax8-positive-biphasic-synovial-sarcoma-expressing-hormonal-receptors
#18
Leonardo Lordello, Martin E Bur, Esther Oliva, Jochen K Lennerz
PAX8, estrogen receptor-α (ERα) and progesterone receptor (PR) are markers usually expressed in neoplasms of müllerian origin. We report a subdiaphragmal mass in a 41-year-old woman corresponding to a malignant biphasic tumor with nests of epithelial-like cells forming variably sized cyst-like spaces alternating with spindle cells forming intersecting fascicles. The later were juxtaposed to coalescent densely cellular nodules of spindle cells with appreciable cytologic atypia and mitotic counts up to 30/10 high-power fields...
February 28, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28248724/tle-1-positive-angiomatoid-fibrous-histiocytoma-mimicking-synovial-sarcoma
#19
Daniel J Zaccarini, Rana Naous, Yesha Sheth, Ola El-Zammar, Gustavo de la Roza, Christopher M Curtiss
Angiomatoid fibrous histiocytoma (AFH) is a rare soft tissue tumor most commonly seen in young adults and children. We report a case with morphology and immunohistochemistry supporting the diagnosis of synovial sarcoma. On core biopsy, the tumor had spindle cell and epithelioid morphology with a myxoid background. Staining for transducin-like enhancer of split 1 and CD99 were positive; however, subsequent fluorescence in situ hybridization for SYT (SS18, nBAF chromatin remodeling complex subunit) break apart returned negative...
February 28, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28168073/two-cases-of-ectopic-hamartomatous-thymoma-masquerading-as-sarcoma
#20
Takahito Kondo, Yukiko Sato, Hiroko Tanaka, Toru Sasaki, Kazuyoshi Kawabata, Hiroki Mitani, Hiroyuki Yonekawa, Hirofumi Fukushima, Wataru Shimbashi
Ectopic hamartomatous thymoma (EHT) is an extremely rare benign tumor. EHTs are difficult to differentiate from sarcomas, especially synovial sarcomas. We encountered two cases of EHT that were referred from other hospitals because sarcoma was suspected. In these cases, fusion gene detection via polymerase chain reaction or fluorescence in situ hybridization was useful for differentiating EHT from synovial sarcoma. EHT requires accurate diagnosis before surgery to avoid excessive treatment. Both tumor location and the presence of fat inside the tumor are important imaging findings for EHT, and confirmation of spindle cells, epithelial cells, and mature adipose cells in the tumor is an important pathological finding...
2017: Case Reports in Otolaryngology
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