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Sarcomas

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https://www.readbyqxmd.com/read/28340171/immunohistochemical-approach-to-the-differential-diagnosis-of-meningiomas-and-their-mimics
#1
Camille Boulagnon-Rombi, Clémence Fleury, Caroline Fichel, Sophie Lefour, Aude Marchal Bressenot, Guillaume Gauchotte
The differential diagnosis between meningioma and others tumors can be challenging. This study aimed to evaluate different immunohistochemical markers for the differential diagnosis between meningioma and their morphological mimics. Immunohistochemistry was performed on tissue microarray with antiepithelial membrane antigen (EMA), progesterone receptor, somatostatin receptor 2A (SSTR2A), CD34, STAT6, S100, SOX10, HMB45, MelanA, GFAP, inhibin, and BCL2 antibodies. One hundred and twenty-seven meningiomas, 26 solitary fibrous tumor/hemangiopericytomas (SFT/HPC), 39 schwannomas, 17 hemangioblastomas, 21 melanomas, 9 gliosarcomas, 5 neurofibromas, 9 peripheral primitive neuroectodermal tumors, 7 synovial sarcomas, and 5 malignant peripheral nerve sheath tumors were included in the microarray...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28338569/case-report-immune-mediated-complete-response-in-a-patient-with-recurrent-advanced-ewing-sarcoma-ews-after-vigil-immunotherapy
#2
Maurizio Ghisoli, McCarley Rutledge, Philip J Stephens, Robert Mennel, Minal Barve, Meghan Manley, Bahram R Oliai, Kathleen M Murphy, Luisa Manning, Belen Gutierrez, Priyanka Rangadass, Ashli Walker, Zhaohui Wang, Donald Rao, Ned Adams, Gladice Wallraven, Neil Senzer, John Nemunaitis
Ewing sarcoma is a highly resistant disease with a <10% chance of survival at 5 years after failure of frontline chemotherapy. This is a case report of an Ewing sarcoma patient with metastatic disease recurrence <2 years after standard chemotherapy/radiation who achieved a durable and sustained complete response after 2 series of treatments with Vigil (GMCSF/bi-shRNA furin DNA autologous tumor immunotherapy) serially manufactured from first and second recurrences with ELISPOT assay correlation. Results support justification of further testing of Vigil with ELISPOT assay as a biomarker to assess level of immune response and correlation with disease control...
March 23, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28338493/surgery-for-recurrent-uterine-cancer-surgical-outcomes-and-implications-for-survival-a-case-series
#3
Lavinia Domenici, Katherine Nixon, Flavia Sorbi, Maria Kyrgiou, Joseph Yazbek, Marcia Hall, Jeremy Campbell, Norma Gibbons, Won-Ho Edward Park, Hani Gabra, Christina Fotopoulou
OBJECTIVE: The purpose of this study was to describe the patterns of relapse in uterine cancer (UC) and the role of surgery in the recurrent setting. METHODS: We describe surgical and clinical outcomes of all patients who underwent surgery for recurrent UC in a gynecological oncology tertiary referral center between May 1, 2013, and April 30, 2016. Progression-free survival and overall survival were estimated using Kaplan-Meier methods with the surgery at relapse being the starting point...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28337886/osteogenesis-promoting-activity-of-composites-sba-15-mesoporous-particles-carrying-oxytocin-in-vitro-and-in-vivo
#4
L Cheng, X He, Y Che, H Che, M Qian
This study analyzes the performance of SBA-15 mesoporous particles carrying oxytocin (OT) in promoting osteogenesis in vitro and in vivo. The SBA-15 particles synthesized in the previous studies (about 30 μm in diameter and containing 10 nm deep pores) were loaded with the drug oxytocin and cultured with human osteosarcoma MG-63 cell line in vitro. The influence of particles on cell proliferation was studied. The level of the osteogenic marker (alkaline phosphatase and type I collagen) was measured. For in vivo studies, the connectivity defects of rabbit skull were prepared, and SBA-15 suspensions were regularly injected at the defect sites...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337795/current-update-on-the-diagnosis-and-management-of-head-and-neck-hard-tissue-sarcomas
#5
REVIEW
Ben Tudor-Green, Felipe Paiva Fonseca, Ricardo Gomez, Peter A Brennan
Head and neck hard tissue sarcomas form a rare group of mesenchymal derived tumours that comprise less than 1% of all head and neck neoplasms. Hard tissue sarcomas account for 20% of head and neck sarcomas and they form a heterogeneous group with a diverse origin. Unlike head and neck soft tissue sarcomas, they have lower recurrence and mortality rates. In this article, we review the current management of head and neck hard tissue sarcomas. This article is protected by copyright. All rights reserved.
March 24, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28337783/primary-cutaneous-anaplastic-large-cell-lymphoma-with-intralymphatic-involvement-associated-with-chronic-lymphedema
#6
Peiyuan Fan, Lin Nong, Jingru Sun, Xiaoqing Liu, Marshall E Kadin, Ting Li, Ping Tu, Yang Wang
Chronic lymphedema predisposes to develop malignant cutaneous tumors, including angiosarcoma, Kaposi's sarcoma and B cell lymphoma. T cell malignancy has rarely been associated with chronic lymph stasis. Here we report a case of primary cutaneous anaplastic large cell lymphoma (pcALCL) with lymphatic spread associated with chronic lymphedema. The patient is a 56-year-old man who received orchiectomy and right inguinal lymphadenectomy for malignant seminoma 10 years ago, which led to prominent lymphedema of the right leg...
March 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28337592/head-and-neck-round-cell-sarcomas-a-comparative-clinicopathologic-analysis-of-2-molecular-subsets-ewing-and-cic-rearranged-sarcomas
#7
Adepitan A Owosho, Cherry L Estilo, Joseph M Huryn, Lei Zhang, Christopher D M Fletcher, Cristina R Antonescu
CIC-rearranged sarcoma (CRS) is a relatively new entity defined by its pathognomonic genetic signature and undifferentiated round cell phenotype, initially grouped together with the 'Ewing sarcoma-like tumors'. However, increasing data suggest that these tumors should be regarded as a stand-alone pathologic entity. We conducted a clinicopathologic analysis on molecularly conformed Ewing sarcoma (ES) and CRS arising in the head and neck (HN) and compared to a well characterized cohort of ES and CRS from other locations...
March 23, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28336944/kaposi-s-sarcoma-associated-herpesvirus-orf34-is-essential-for-late-gene-expression-and-virus-production
#8
Mayu Nishimura, Tadashi Watanabe, Syota Yagi, Takahiro Yamanaka, Masahiro Fujimuro
Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of Kaposi's sarcoma, primary effusion lymphoma, and multicentric Castleman's disease. KSHV establishes a life-long infection in its host and alternates between a latent and lytic infection state. During lytic infection, lytic-related genes are expressed in a temporal manner and categorized as immediate early, early, and late gene transcripts. ORF34 is an early-late gene that interacts with several viral transcription-associated factors, however its physiological importance remains poorly understood...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336564/identification-of-a-novel-syk-c-myc-malat1-signaling-pathway-and-its-potential-therapeutic-value-in-ewing-sarcoma
#9
Haibo Sun, De-Chen Lin, Qi Cao, Brendan Pang, David D Gae, Victor Km Lee, Huey Jin Lim, Ngan Doan, Jonathan W Said, Sigal Gery, Marilynn Chow, Anand Mayakonda, Charles Forscher, Jeffrey W Tyner, H Phillip Koeffler
PURPOSE: Ewing Sarcoma (EWS) is a devastating soft tissue sarcoma affecting predominantly young individuals. Tyrosine kinases (TKs) and associated pathways are continuously activated in many malignancies including EWS; these enzymes provide candidate therapeutic targets. EXPERIMENTAL DESIGN: Two high-throughput screens (a siRNA library and a small-molecule inhibitor library) were performed in EWS cells to establish candidate targets. Spleen tyrosine kinase (SYK) phosphorylation was assessed in EWS patients and cell lines...
March 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28336328/bone-healing-is-achievable-despite-extensive-wound-dehiscence-and-wide-plate-and-screws-exposure-in-children
#10
Elias Melhem, Wael Bayoud, Ismat Ghanem
BACKGROUD: Extensive wound dehiscence and wide plate and screw exposure in the early weeks following orthopaedic surgery in children is usually managed either by extensive debridement, lavage and secondary closure or hardware removal and external fixation. PATIENTS: Three children with LCP plate and screws exposure were managed by simple repetitive debridement and local wound care without any IV antibiotics, nor secondary closure or hardware removal. All three cases occurred in the tibia, one following tibial osteotomy in lateral hemimelia with a long history of previous surgeries, one following wide excision of a tibial Ewing sarcoma with chemo and radiotherapy, and the third following wide excision of a 12cm necrotic tibial segment due to chronic osteomyelitis...
March 20, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28335657/molecular-characteristics-of-uterine-sarcomas
#11
Ben Davidson, Francesca Micci
Uterine sarcomas are rare cancers, of which the most common entities are leiomyosarcoma and endometrial stromal sarcoma. These two tumors may have overlapping clinical presentation, morphology and immunohistochemical profile, but are increasingly recognized to be two molecularly distinct entities. Endometrial stromal sarcomas are further currently divided into a low-grade and high-grade group based on molecular characteristics. Area covered: This review discusses recent data which shed light on the molecular profile of these two cancers and may aid in understanding their evolution and progression, in the aim of improving their diagnosis and management...
March 24, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28335646/synthesis-of-an-acridine-orange-sulfonamide-derivative-with-potent-carbonic-anhydrase-ix-inhibitory-action
#12
Marco Bragagni, Fabrizio Carta, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran
Acridine orange (AO) a fluorescent cationic dye used for the management of human musculoskeletal sarcomas, due to its strong tumoricidal action and accumulation in the acidic environment typical of hypoxic tumors, was used for the preparation of a primary sulfonamide derivative. The rationale behind the drug design is the fact that hypoxic, acidic tumors overexpress carbonic anhydrase (CA, EC 4.2.1.1) isoforms, such as CA IX, which is involved in pH regulation, proliferation, cell migration and invasion, and this enzyme is strongly inhibited by primary sulfonamides...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28335496/quantitative-analysis-of-the-kshv-transcriptome-following-primary-infection-of-blood-and-lymphatic-endothelial-cells
#13
A Gregory Bruce, Serge Barcy, Terri DiMaio, Emilia Gan, H Jacques Garrigues, Michael Lagunoff, Timothy M Rose
The transcriptome of the Kaposi's sarcoma-associated herpesvirus (KSHV/HHV8) after primary latent infection of human blood (BEC), lymphatic (LEC) and immortalized (TIME) endothelial cells was analyzed using RNAseq, and compared to long-term latency in BCBL-1 lymphoma cells. Naturally expressed transcripts were obtained without artificial induction, and a comprehensive annotation of the KSHV genome was determined. A set of unique coding sequence (UCDS) features and a process to resolve overlapping transcripts were developed to accurately quantitate transcript levels from specific promoters...
March 19, 2017: Pathogens
https://www.readbyqxmd.com/read/28335080/comparisons-among-mri-signs-apparent-diffusion-coefficient-and-fractional-anisotropy-in-dogs-with-a-solitary-intracranial-meningioma-or-histiocytic-sarcoma
#14
Masae Wada, Daisuke Hasegawa, Yuji Hamamoto, Yoshihiko Yu, Aki Fujiwara-Igarashi, Michio Fujita
Although MRI has become widely used in small animal practice, little is known about the validity of advanced MRI techniques such as diffusion-weighted imaging and diffusion tensor imaging. The aim of this retrospective analytical observational study was to investigate the characteristics of diffusion parameters, that is the apparent diffusion coefficient and fractional anisotropy, in dogs with a solitary intracranial meningioma or histiocytic sarcoma. Dogs were included based on the performance of diffusion MRI and histological confirmation...
March 23, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28334365/effect-of-kit-and-pdgfra-mutations-on-survival-in-patients-with-gastrointestinal-stromal-tumors-treated-with-adjuvant-imatinib-an-exploratory-analysis-of-a-randomized-clinical-trial
#15
Heikki Joensuu, Eva Wardelmann, Harri Sihto, Mikael Eriksson, Kirsten Sundby Hall, Annette Reichardt, Jörg T Hartmann, Daniel Pink, Silke Cameron, Peter Hohenberger, Salah-Eddin Al-Batran, Marcus Schlemmer, Sebastian Bauer, Bengt Nilsson, Raija Kallio, Jouni Junnila, Aki Vehtari, Peter Reichardt
Importance: Little is known about whether the duration of adjuvant imatinib influences the prognostic significance of KIT proto-oncogene receptor tyrosine kinase (KIT) and platelet-derived growth factor receptor α (PDGFRA) mutations. Objective: To investigate the effect of KIT and PDGFRA mutations on recurrence-free survival (RFS) in patients with gastrointestinal stromal tumors (GISTs) treated with surgery and adjuvant imatinib. Design, Setting, and Participants: This exploratory study is based on the Scandinavian Sarcoma Group VIII/Arbeitsgemeinschaft Internistische Onkologie (SSGXVIII/AIO) multicenter clinical trial...
March 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28333954/distance-in-cancer-gene-expression-from-stem-cells-predicts-patient-survival
#16
Markus Riester, Hua-Jun Wu, Ahmet Zehir, Mithat Gönen, Andre L Moreira, Robert J Downey, Franziska Michor
The degree of histologic cellular differentiation of a cancer has been associated with prognosis but is subjectively assessed. We hypothesized that information about tumor differentiation of individual cancers could be derived objectively from cancer gene expression data, and would allow creation of a cancer phylogenetic framework that would correlate with clinical, histologic and molecular characteristics of the cancers, as well as predict prognosis. Here we utilized mRNA expression data from 4,413 patient samples with 7 diverse cancer histologies to explore the utility of ordering samples by their distance in gene expression from that of stem cells...
2017: PloS One
https://www.readbyqxmd.com/read/28333859/multicenter-prospective-study-for-laboratory-diagnosis-of-hhv8-infection-in-solid-organ-donors-and-transplant-recipients-and-evaluation-of-the-clinical-impact-after-transplantation
#17
Angela Chiereghin, Patrizia Barozzi, Evangelia Petrisli, Giulia Piccirilli, Liliana Gabrielli, Giovanni Riva, Leonardo Potenza, Gianni Cappelli, Nicola De Ruvo, Irene Libri, Umberto Maggiore, Maria Cristina Morelli, Luciano Potena, Paola Todeschini, Dino Gibertoni, Manuel Labanti, Gabriela Sangiorgi, Gaetano La Manna, Antonio Daniele Pinna, Mario Luppi, Tiziana Lazzarotto
BACKGROUND: We performed serological and molecular pretransplant screening in solid organ transplant (SOT) donors and recipients in north-central Italy and a surveillance program for human herpes virus 8 (HHV8) infection after transplant, aiming to establish an optimal management of HHV8 infection in SOT recipients. METHODS: For pretransplant HHV8 screening in both donors and recipients, 6 serological (4 indirect immunofluorescent assays (IFA) and 2 enzyme-linked immunosorbent assays (ELISA) - both HHV8 lytic and latent antigen-based) and 2 molecular assays were used...
March 22, 2017: Transplantation
https://www.readbyqxmd.com/read/28333843/does-obesity-affect-pathologic-agreement-of-initial-and-final-tumor-grade-of-disease-in-endometrial-cancer-patients
#18
Laura R Daily, Jonathan D Boone, Hannah C Machemehl, Eric D Thomas, Gerald McGwin, J Michael Straughn, Charles A Leath
OBJECTIVES: The objectives of this study were to compare preoperative and postoperative tumor grade to determine if surgical staging decisions for endometrial cancer based on preoperative biopsy are feasible and whether obesity affects the agreement. METHODS: A retrospective cohort study of women with endometrial cancer between January 2010 and December 2011 was performed. Demographics, stage of final pathology, biopsy method, preoperative and postoperative tissue grade, and histology were abstracted and stratified by patient body mass index (obese ≥30 kg/m and nonobese <30 kg/m)...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28333413/extramedullary-leukemia-in-children-with-acute-myeloid-leukemia-a-population-based-cohort-study-from-the-nordic-society-of-pediatric-hematology-and-oncology-nopho
#19
Heidi Kristine Støve, Julie Damgaard Sandahl, Jonas Abrahamsson, Peter H Asdahl, Erik Forestier, Shau-Yin Ha, Kirsi Jahnukainen, Ólafur G Jónsson, Birgitte Lausen, Josefine Palle, Bernward Zeller, Henrik Hasle
BACKGROUND: The prognostic significance of extramedullary leukemia (EML) in childhood acute myeloid leukemia is not clarified. PROCEDURE: This population-based study included 315 children from the NOPHO-AML 2004 trial. RESULTS: At diagnosis, 73 (23%) patients had EML: 39 (12%) had myeloid sarcoma, 22 (7%) had central nervous system disease, and 12 (4%) had both. EML was associated with young age (median age: 2.6 years), a high white blood cell count (median: 40 × 10(9) /l), M5 morphology (40%), and 11q23/MLL (KMT2A) rearrangements (34%)...
March 23, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28332083/phase-iii-soft-tissue-sarcoma-trials-success-or-failure
#20
REVIEW
Alexander T J Lee, Seth M Pollack, Paul Huang, Robin L Jones
Two recently reported phase III randomised control trials (RCTs) have resulted in the registration of two new systemic therapies for advanced soft tissue sarcoma. Both of these trials' designs were informed by phase II data that guided the selection of sensitive STS diagnoses, enabling the demonstration of benefit in certain subtypes. A number of other phase III trials reported in the last 18 months have seemingly fit into a recurrent pattern of failure-promising efficacy signals in earlier phase studies being lost in the survival follow-up of large, highly heterogeneous cohorts...
March 2017: Current Treatment Options in Oncology
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