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Gliosarcoma

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https://www.readbyqxmd.com/read/28644110/detailed-magnetic-resonance-imaging-features-of-a-case-series-of-primary-gliosarcoma
#1
Luísa Sampaio, Paulo Linhares, José Fonseca
Objective We aimed to characterise the magnetic resonance imaging (MRI) features of a case series of primary gliosarcoma, with the inclusion of diffusion-weighted imaging and perfusion imaging with dynamic susceptibility contrast MRI. Materials and methods We conducted a retrospective study of cases of primary gliosarcoma from the Pathology Department database from January 2006 to December 2014. Clinical and demographic data were obtained. Two neuroradiologists, blinded to diagnosis, assessed tumour location, signal intensity in T1 and T2-weighted images, pattern of enhancement, diffusion-weighted imaging and dynamic susceptibility contrast MRI studies on preoperative MRI...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28642179/analysis-of-outcomes-of-multidisciplinary-management-of-gliosarcoma-a-single-centre-study-2000-2013
#2
Abhinav Jain, Jason Correia, Patrick Schweder, Adele McMahon, Joseph Merola, Robert Aspoas
BACKGROUND: Gliosarcoma is a rare CNS tumour with a reported incidence of ∼2-8% of all gliomas. We reviewed the outcomes of patients treated at our institution over a 14-year period from 2000-2013 to characterize overall and progression free survival as well as to elucidate the additive effect of chemo-radiotherapy. METHODS: For the duration of 01/01/2000 to 31/12/2013, we retrospectively reviewed the clinical notes of all patients treated at our institution with a histopathological diagnosis of Gliosarcoma...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28621623/patterns-of-care-and-outcomes-in-gliosarcoma-an-analysis-of-the-national-cancer-database
#3
Jonathan Frandsen, Andrew Orton, Randy Jensen, Howard Colman, Adam L Cohen, Jonathan Tward, Dennis C Shrieve, Gita Suneja
OBJECTIVE The authors compared presenting characteristics and survival for patients with gliosarcoma (GS) and glioblastoma (GBM). Additionally, they performed a survival analysis for patients who underwent GS treatments with the hypothesis that trimodality therapy (surgery followed by radiation and chemotherapy) would be superior to nontrimodality therapy (surgery alone or surgery followed by chemotherapy or radiation). METHODS Adults diagnosed with GS and GBM between the years 2004 and 2013 were queried from the National Cancer Database...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28558795/non-caloric-sweetener-provides-magnetic-resonance-imaging-contrast-for-cancer-detection
#4
Puneet Bagga, Mohammad Haris, Kevin D'Aquilla, Neil E Wilson, Francesco M Marincola, Mitchell D Schnall, Hari Hariharan, Ravinder Reddy
BACKGROUND: Image contrast enhanced by exogenous contrast agents plays a crucial role in the early detection, characterization, and determination of the precise location of cancers. Here, we investigate the feasibility of using a non-nutritive sweetener, sucralose (commercial name, Splenda), as magnetic resonance imaging (MRI) contrast agent for cancer studies. METHODS: High-resolution nuclear-magnetic-resonance spectroscopy and MR studies on sucralose solution phantom were performed to detect the chemical exchange saturation transfer (CEST) property of sucralose hydroxyl protons with bulk water (sucCEST)...
May 30, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28525840/indole-carboxylic-acid-esters-of-melampomagnolide-b-are-potent-anticancer-agents-against-both-hematological-and-solid-tumor-cells
#5
Shobanbabu Bommagani, Jessica Ponder, Narsimha R Penthala, Venumadhav Janganati, Craig T Jordan, Michael J Borrelli, Peter A Crooks
A series of novel, heteroaryl carboxylic acid conjugates of the sesquiterpene melampomagnolide-B (MMB, 3) has been evaluated as antitumor agents against an NCI panel of 64 human hematopoetic and solid tumor cell lines. The indole-3-acrylic acid conjugate 7j and the indole-3-carboxylic acid conjugate 7k were found to be the most potent analogs in the series. Compounds 7j and 7k exhibited remarkable growth inhibition, with GI50 values in the range 0.03-0.30 μM and 0.04-0.28 μM, respectively, against the cell lines in the leukemia sub-panel, and GI50 values of 0...
August 18, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28503718/photodithazine-photodynamic-effect-on-viability-of-9l-lacz-gliosarcoma-cell-line
#6
Leticia C Fontana, Juliana G Pinto, André H C Pereira, Cristina P Soares, Leandro J Raniero, Juliana Ferreira-Strixino
Even with the advances of conventional treatment techniques, the nervous system cancer prognosis is still not favorable to the patient which makes alternative therapies needed to be studied. Photodynamic therapy (PDT) is presented as a promising therapy, which employs a photosensitive (PS) agent, light wavelength suitable for the PS agent, and molecular oxygen, producing reactive oxygen species in order to induce cell death. The aim of this study is to observe the PDT action in gliosarcoma cell using a chlorin (Photodithazine, PDZ)...
May 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28457650/orthostatic-myoclonus-after-brain-tumor-radiation-insights-from-two-lesional-cases
#7
Jeremy K Cutsforth-Gregory, Julie E Hammack, Joseph Y Matsumoto
INTRODUCTION: Orthostatic myoclonus (OM) is a recognized syndrome of gait unsteadiness accompanied by lower limb myoclonus provoked by the assumption of an upright posture. OM typically affects the elderly and is often associated with neurodegenerative disease. We sought to review the clinical and electrophysiologic characteristics of OM due to brain tumor treatment, the first reported lesional cases of this rare disorder. METHODS: The database of the Mayo Clinic Rochester Movement Disorders Laboratory was searched for all patients diagnosed with OM from January 2007 to December 2016...
April 26, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28413542/lateral-ventricular-gliosarcoma-with-attachment-to-septum-pellucidum
#8
Pravin Salunke, Harnarayan Singh, Kim Vaiphei
Gliosarcomas are lesions with both glial and sarcomatous elements and are usually seen abutting the dura. Intraventricular location is extremely rare. Such an unusual intraventricular gliosarcoma is being reported.
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28408749/high-prevalence-of-tp53-mutations-is-associated-with-poor-survival-and-an-emt-signature-in-gliosarcoma-patients
#9
Sung-Yup Cho, Changho Park, Deukchae Na, Jee Yun Han, Jieun Lee, Ok-Kyoung Park, Chengsheng Zhang, Chang Ohk Sung, Hyo Eun Moon, Yona Kim, Jeong Hoon Kim, Jong Jae Kim, Shin Kwang Khang, Do-Hyun Nam, Jung Won Choi, Yeon-Lim Suh, Dong Gyu Kim, Sung Hye Park, Hyewon Youn, Kyuson Yun, Jong-Il Kim, Charles Lee, Sun Ha Paek, Hansoo Park
Gliosarcoma (GS) is a rare variant (2%) of glioblastoma (GBM) that poses clinical genomic challenges because of its poor prognosis and limited genomic information. To gain a comprehensive view of the genomic alterations in GS and to understand the molecular etiology of GS, we applied whole-exome sequencing analyses for 28 GS cases (6 blood-matched fresh-frozen tissues for the discovery set, 22 formalin-fixed paraffin-embedded tissues for the validation set) and copy-number variation microarrays for 5 blood-matched fresh-frozen tissues...
April 14, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28395087/retrospective-analysis-of-molecular-and-immunohistochemical-characterization-of-381-primary-brain-tumors
#10
Leomar Y Ballester, Gregory N Fuller, Suzanne Z Powell, Erik P Sulman, Keyur P Patel, Rajyalakshmi Luthra, Mark J Routbort
The classification of brain tumors has traditionally depended on microscopic examination of hematoxylin and eosin-stained tissue sections. The increased understanding of clinically relevant genetic alterations has led to the incorporation of molecular signatures as part of the diagnosis of brain malignancies. Advances in sequencing technologies have facilitated the use of next-generation sequencing (NGS) assays in clinical laboratories. We performed a retrospective analysis of sequencing results for 381 brain tumors tested by NGS at our institution using a validated, commercially available panel...
March 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28340171/immunohistochemical-approach-to-the-differential-diagnosis-of-meningiomas-and-their-mimics
#11
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...
April 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28327297/first-proof-of-bismuth-oxide-nanoparticles-as-efficient-radiosensitisers-on-highly-radioresistant-cancer-cells
#12
Callum Stewart, Konstantin Konstantinov, Sally McKinnon, Susanna Guatelli, Michael Lerch, Anatoly Rosenfeld, Moeava Tehei, Stéphanie Corde
This study provides the first proof of the novel application of bismuth oxide as a radiosensitiser. It was shown that on the highly radioresistant 9L gliosarcoma cell line, bismuth oxide nanoparticles sensitise to both kilovoltage (kVp) or megavoltage (MV) X-rays radiation. 9L cells were exposed to a concentration of 50μg.mL(-1) of nanoparticle before irradiation at 125kVp and 10MV. Sensitisation enhancement ratios of 1.48 and 1.25 for 125kVp and 10MV were obtained in vitro, respectively. The radiation enhancement of the nanoparticles is postulated to be a combination of the high Z nature of the bismuth (Z=83), and the surface chemistry...
November 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/28288892/mr-image-guided-delivery-of-cisplatin-loaded-brain-penetrating-nanoparticles-to-invasive-glioma-with-focused-ultrasound
#13
Kelsie F Timbie, Umara Afzal, Abhijit Date, Clark Zhang, Ji Song, G Wilson Miller, Jung Soo Suk, Justin Hanes, Richard J Price
Systemically administered chemotherapeutic drugs are often ineffective in the treatment of invasive brain tumors due to poor therapeutic index. Within gliomas, despite the presence of heterogeneously leaky microvessels, dense extracellular matrix and high interstitial pressure generate a "blood-tumor barrier" (BTB), which inhibits drug delivery and distribution. Meanwhile, beyond the contrast MRI-enhancing edge of the tumor, invasive cancer cells are protected by the intact blood-brain barrier (BBB). Here, we tested whether brain-penetrating nanoparticles (BPN) that possess dense surface coatings of polyethylene glycol (PEG) and are loaded with cisplatin (CDDP) could be delivered across both the blood-tumor and blood-brain barriers with MR image-guided focused ultrasound (MRgFUS), and whether this treatment could control glioma growth and invasiveness...
March 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28261869/intraventricular-gliosarcoma-with-dual-sarcomatous-differentiation-a-unique-case
#14
Rajalakshmi Poyuran, Nandeesh Bn, Yerasi Varun Kumar Reddy, Amey R Savardekar
Gliosarcoma, a variant of isocitrate dehydrogenase-wildtype glioblastoma, is largely a lobar surfacing neoplasm often with dural attachment. In this biphasic neoplasm, the sarcomatous component usually takes the form of fibrosarcoma or malignant fibrous histiocytoma. Heterologous sarcomatous differentiation is a rare phenomenon. Here, we present a case of gliosarcoma with liposarcomatous and myosarcomatous differentiation in a 68-year-old man which was purely intraventricular. This is the first report of such a morphologic pattern in this location...
March 6, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28180935/clinicopathological-features-and-microsurgical-outcomes-for-giant-pediatric-intracranial-tumor-in-60-consecutive-cases
#15
Ailing Guo, Vigneyshwar Suresh, Xianzhi Liu, Fuyou Guo
PURPOSE: Giant pediatric intracranial tumor (GPIT) remains to be a challenging disease with high morbidity and mortality. METHODS: The clinical data of 60 patients under 18 years of age operated on with GPIT (≥5 cm in diameter) were retrospectively analyzed. RESULTS: Gross total resection was achieved in 46 cases (77%) and subtotal resection was obtained in 14 cases (23%). Ninety percent (47/52) of the cases with obstructive hydrocephalus were resolved remarkably and only 10% (5/52) of the patients needed a ventriculoperitoneal shunt after tumor resection...
March 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28161760/incidence-survival-pathology-and-genetics-of-adult-latino-americans-with-glioblastoma
#16
Maryam Shabihkhani, Donatello Telesca, Masoud Movassaghi, Yalda B Naeini, Kourosh M Naeini, Seyed Amin Hojat, Diviya Gupta, Gregory M Lucey, Michael Ontiveros, Michael W Wang, Lauren S Hanna, Desiree E Sanchez, Sergey Mareninov, Negar Khanlou, Harry V Vinters, Marvin Bergsneider, Phioanh Leia Nghiemphu, Albert Lai, Linda M Liau, Timothy F Cloughesy, William H Yong
Latino Americans are a rapidly growing ethnic group in the United States but studies of glioblastoma in this population are limited. We have evaluated characteristics of 21,184 glioblastoma patients from the Surveillance, Epidemiology, and End Results (SEER) Program of the National Cancer Institute. This SEER data from 2001 to 2011 draws from 28% of the U.S. POPULATION: Latinos have a lower incidence of GBM and present slightly younger than non-Latino Whites. Cubans present at an older age than other Latino sub-populations...
April 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27975329/density-dependent-regulation-of-glioma-cell-proliferation-and-invasion-mediated-by-mir-9
#17
Mark Katakowski, Nicholas Charteris, Michael Chopp, Evgeniy Khain
The phenotypic axis of invasion and proliferation in malignant glioma cells is a well-documented phenomenon. Invasive glioma cells exhibit a decreased proliferation rate and a resistance to apoptosis, and invasive tumor cells dispersed in brain subsequently revert to proliferation and contribute to secondary tumor formation. One miRNA can affect dozens of mRNAs, and some miRNAs are potent oncogenes. Multiple miRNAs are implicated in glioma malignancy, and several of which have been identified to regulate tumor cell motility and division...
December 2016: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/27951723/-a-patient-with-primary-intraventricular-gliosarcoma-and-long-term-survival-a-case-report
#18
O Kalita, M Zlevorová, M Megová, M Vaverka, R Trojanec, L Tučková
BACKGROUND: Gliosarcoma is a rare, malignant CNS tumor with a very poor prognosis. Gliosarcoma is a variant of glioblastoma multiforme, which is characterized by the presence of both glial and mesenchymal components. The treatment strategy for gliosarcomas has not yet been determined clearly. CASE PRESENTATION: This case report presents a 23-year-old female patient who complained of increasing headaches, nausea and vomiting, and slight motor weakness in her left arm...
December 0: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27941882/use-of-an-anti-viral-drug-ribavirin-as-an-anti-glioblastoma-therapeutic
#19
F Volpin, J Casaos, J Sesen, A Mangraviti, J Choi, N Gorelick, J Frikeche, T Lott, R Felder, S J Scotland, T S K Eisinger-Mathason, H Brem, B Tyler, N Skuli
The median survival for glioblastoma patients is ~15 months despite aggressive surgery and radio-chemotherapy approaches. Thus, developing new therapeutics is necessary to improve the treatment of these invasive brain tumors, which are known to show high levels of the eukaryotic initiation factor, eIF4E, a potent oncogene. Ribavirin, the only clinically approved drug known to target eIF4E, is an anti-viral molecule currently used in hepatitis C treatment. Here, we report the effect of ribavirin on proliferation, cell cycle, cell death and migration of several human and murine glioma cell lines, as well as human glioblastoma stem-like cells, in vitro...
May 25, 2017: Oncogene
https://www.readbyqxmd.com/read/27899174/concurrent-gliosarcoma-and-choroid-plexus-carcinoma-in-a-cow
#20
A Ortloff, J Neumann, O Illanes
Brain tumours in cattle are uncommon and the spontaneous development of primary brain tumours of different histological types is rare in both man and animals. In man, multiple concurrent primary tumours of different types are occasionally described. We report the rare simultaneous occurrence of two different primary brain tumours, gliosarcoma and choroid plexus carcinoma, diagnosed by microscopical and immunofluorescence evaluation in an 8-year-old cow with a 2-month history of neurological disease. Gliosarcoma is a rare variant of glioblastoma multiforme, characterized by the presence of malignant glial cells and mesenchymal tissue...
January 2017: Journal of Comparative Pathology
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