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Central Nervous Tumors

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https://www.readbyqxmd.com/read/28340489/mir-34a-3p-alters-proliferation-and-apoptosis-of-meningioma-cells-in-vitro-and-is-directly-targeting-smad4-frat1-and-bcl2
#1
Tamara V Werner, Martin Hart, Ruth Nickels, Yoo-Jin Kim, Michael D Menger, Rainer M Bohle, Andreas Keller, Nicole Ludwig, Eckart Meese
Micro (mi)RNAs are short, noncoding RNAs and deregulation of miRNAs and their targets are implicated in tumor generation and progression in many cancers. Meningiomas are mostly benign, slow growing tumors of the central nervous system with a small percentage showing a malignant phenotype.Following in silico prediction of potential targets of miR-34a-3p, SMAD4, FRAT1, and BCL2 have been confirmed as targets by dual luciferase assays with co-expression of miR-34a-3p and reporter gene constructs containing the respective 3'UTRs...
March 23, 2017: Aging
https://www.readbyqxmd.com/read/28338567/bevacizumab-therapy-for-pilomyxoid-astrocytoma
#2
Ryan D Metts, Walter Bartynski, Cynthia T Welsh, Stephen Kinsman, Amy-Lee Bredlau
Pilomyxoid astrocytoma is a rare tumor of the central nervous system generally found in young children near the hypothalamus. Herein, we report a 19-month-old female infant with a pilomyxoid astrocytoma, who underwent surgery as well as carboplatin and vincristine chemotherapy in an attempt to delay radiation therapy to the brain. Magnetic resonance imaging revealed that the tumor had increased in tumor volume on therapy. Chemotherapy with carboplatin and vincristine was stopped and bevacizumab therapy (10 mg/kg every other week) was initiated...
March 23, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28338502/sellar-atypical-teratoid-rhabdoid-tumor-at-rt-a-clinicopathologically-and-genetically-distinct-variant-of-at-rt
#3
Satoshi Nakata, Sumihito Nobusawa, Takanori Hirose, Shinji Ito, Naoko Inoshita, Shunsuke Ichi, Vishwa J Amatya, Yukio Takeshima, Kazuhiko Sugiyama, Yukihiko Sonoda, Hironori Haga, Junko Hirato, Yoichi Nakazato, Hideaki Yokoo
Atypical teratoid/rhabdoid tumors (AT/RTs) are rare aggressive tumors of the central nervous system that predominantly affect infants. Although adult AT/RT are rare, accumulated cases have revealed adult-specific AT/RT in the sellar region. Twelve previously reported cases of sellar AT/RT exclusively occurred in adult females, suggesting biological differences from conventional infant AT/RT. We herein investigated a series of 6 sellar AT/RT for histopathologic features, the molecular status of the INI1/SMARCB1 gene, and clinical courses...
March 23, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28337644/cns-demyelination-with-tnf-%C3%AE-blockers
#4
REVIEW
Elissavet Kemanetzoglou, Elisabeth Andreadou
Tumor necrosis factor-α (TNF-α) blockers are a popular therapeutic choice in a number of inflammatory diseases. Thus far, five TNF- α blockers have been approved for clinical use (etanercept, infliximab, adalimumab, golimumab. and certolizumab). Despite being considered relatively safe, serious side effects associated with immune suppression have been reported, including central and peripheral nervous system (CNS) demyelinating disorders. It is still elusive whether these events are mere coincidence or a side effect of anti-TNF-α use...
April 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28337377/the-e3-ubiquitin-ligase-chip-mir-92b-pten-regulatory-network-contributes-to-tumorigenesis-of-glioblastoma
#5
Tao Xu, Hongxiang Wang, Mei Jiang, Yong Yan, Weiqing Li, Hanchong Xu, Qilin Huang, Yicheng Lu, Juxiang Chen
Glioblastoma (GBM) is the most frequent, aggressive and fatal tumor in the central nervous system, while PTEN signaling is frequently deregulated in human GBM. We previously reported the up-regulation of the carboxyl terminal of Hsp70-interacting protein (CHIP) in GBM, however, the causal link between its dysregulation and tumorigenesis has not been established. Using miRNA microarrays and quantitative RT-PCR (qRT-PCR), we found activation of CHIP leads to increased transcription of miR-92b. Further studies in T98G and LN229 cells showed overexpression of miR-92b elicited reduction of PTEN and efficiently rescued glioma development in CHIP knock-down cells...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28334942/epidemiological-analysis-of-childhood-cancer-in-japan-based-on-population-based-cancer-registries-1993-2009
#6
Hiroyuki Ishihara, Yuko Ohno, Makoto Fujii, Junichi Hara, Midori Soda
Background: There are few recent data on trends in childhood cancer incidence using population-based cancer registries in Japan. Methods: This study comprised 6110 reported cases of patients aged 0-14 years who were diagnosed as having primary cancer between 1993 and 2009. We chose cancer registries of seven prefectures, according to the international cancer registry standard of fewer than 10% death certificate only cases among cancer registries in Japan. We analyzed population-based cancer registration data in the seven prefectures between 1993 and 2009...
March 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28332472/primary-diffuse-leptomeningeal-gliomatosis-do-we-miss-the-diagnosis
#7
Sébastien Lepreux, Sharmilla Sagnier, Jean-Thomas Perez, François Léger, Igor Sibon, Anne Vital
Primary diffuse leptomeningeal gliomatosis (PDLG) is characterized by diffuse infiltration of the leptomeningeal space by neoplastic glial cells without evidence of intra-parenchymatous primary tumor. We report a case of PDLG in a 68-year-old man, who died 1 month after onset of symptoms. The diagnosis was made on autopsy data. We discuss the particularities of this entity, which is not registered in the WHO classification of tumors of the central nervous system (2016). In case of an unexplained inflammatory meningeal process and in the presence of atypical cells in the cerebrospinal fluid, PDLG needs to be considered...
March 23, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28332155/cerebellopontine-angle-tumors-in-young-children-displaying-cranial-nerve-deficits-and-restricted-diffusion-on-diffusion-weighted-imaging-a-new-clinical-triad-for-atypical-teratoid-rhabdoid-tumors
#8
Joel S Katz, Pier Paolo Peruzzi, Christopher R Pierson, Jonathan L Finlay, Jeffrey R Leonard
Atypical teratoid/rhabdoid tumors (AT/RT) of the central nervous system (CNS) are rare, highly malignant neoplasms that carry a poor prognosis. Even with prompt diagnosis, gross total resection and early initiation of intensive adjuvant therapy, the majority of patients will succumb within 9-12 months of diagnosis. The CPA location in children harbors lesions along a wide spectrum varying from benign to highly malignant. Imaging features of lesions within the CPA that aid the diagnostic process will help to initiate early treatment in higher-grade lesions...
March 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28331947/-magnetic-resonance-spectroscopy-of-brain-tumors
#9
P Ditter, E Hattingen
BACKGROUND: Conventional magnetic resonance imaging (MRI) under consideration of clinical information enables the correct diagnosis and therapy for the majority of cerebral space-occupying lesions. Some important differential diagnoses, e. g. low vs. high-grade tumors, require additional MRI methods. OBJECTIVE: This article critically discusses the importance of magnetic resonance spectroscopy ((1)H-MRS) in brain tumors. MATERIAL AND METHODS: The concentration of normal and pathological brain metabolites can be non-invasively measured by (1)H-MRS...
March 22, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28331101/immunotherapy-of-nivolumab-with-dendritic-cell-vaccination-is-effective-against-intractable-recurrent-primary-central-nervous-system-lymphoma-a-case-report
#10
Motomasa Furuse, Naosuke Nonoguchi, Naoki Omura, Mitsuaki Shirahata, Koichi Iwasaki, Toshio Inui, Toshihiko Kuroiwa, Hiroko Kuwabara, Shin-Ichi Miyatake
We report effective treatment with nivolumab of a patient with recurrent primary central nervous system lymphoma (PCNSL) after multiple therapies. A 41-year-old woman with a right parietal PCNSL underwent treatment with high-dose methotrexate and radiotherapy. After recurrence in the left frontal lobe, the patient received several chemotherapies, including methotrexate and rituximab, and underwent surgery. The tumor was refractory to these treatments, and the patient then underwent intensity-modulated radiotherapy (IMRT)...
March 23, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28330942/primary-angiitis-of-the-central-nervous-system-magnetic-resonance-imaging-spectrum-of-parenchymal-meningeal-and-vascular-lesions-at-baseline
#11
Grégoire Boulouis, Hubert de Boysson, Mathieu Zuber, Loïc Guillevin, Eric Meary, Vincent Costalat, Christian Pagnoux, Olivier Naggara
BACKGROUND AND PURPOSE: Primary angiitis of the central nervous system remains challenging. To report an overview and pictorial review of brain magnetic resonance imaging findings in adult primary angiitis of the central nervous system and to determine the distribution of parenchymal, meningeal, and vascular lesions in a large multicentric cohort. METHODS: Adult patients from the French COVAC cohort (Cohort of Patients With Primary Vasculitis of the Central Nervous System), with biopsy or angiographically proven primary angiitis of the central nervous system and brain magnetic resonance imaging available at the time of diagnosis were included...
March 22, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28325997/a-comprehensive-approach-in-high-grade-glioma-management-position-statement-from-the-neuro-oncology-scientific-club-nosc-shiraz-iran
#12
REVIEW
Mansour Ansari, Ahmad Mosalaei, Niloufar Ahmadloo, Alireza Rasekhi, Bita Geramizadeh, Ali Razmkon, Kazem Anvari, Mohammad Afarid, Ali Dadras, Leila Nafarieh, Mohammad Mohammadianpanah, Hamid Nasrolahi, Seyed Hasan Hamedi, Shapour Omidvari, Mohammad Nami
Establishing a robust teamwork model in the practice of neuro-oncology requires continued interdisciplinary efforts. The Neuro-Oncology Scientific Club (NOSC) initiative is an interdisciplinary clinical forum promoting the comprehensive approach across involved disciplines in the management of central nervous system (CNS) malignancies. With its provincial founding panels and national steering board, NOSC has been operational in Iran since 2011. This initiative has pursued its mission through interval strategic meetings, tumor boards, case discussions as well as publishing neuro-oncology updates, case study periodicals, and newsletters...
2017: German Medical Science: GMS E-journal
https://www.readbyqxmd.com/read/28325133/outcome-for-children-treated-for-medulloblastoma-and-supratentorial-primitive-neuroectodermal-tumor-cns-pnet-a-retrospective-analysis-spanning-40-years-of-treatment
#13
Einar Stensvold, Bård Kronen Krossnes, Tryggve Lundar, Bernt J Due-Tønnessen, Radek Frič, Paulina Due-Tønnessen, Anne Grete Bechensteen, Tor Åge Myklebust, Tom Børge Johannesen, Petter Brandal
BACKGROUND: Medulloblastoma (MB) and supratentorial primitive neuroectodermal tumor of the central nervous system (CNS-PNET) are among the most common pediatric brain tumors. The diagnosis, treatment, and outcome of MB/CNS-PNET patients treated during the last four decades at Oslo University Hospital (OUH) are described. MATERIAL AND METHODS: All patients younger than 20 years of age diagnosed and treated for MB/CNS-PNET at OUH between 1 January 1974 and 31 December 2013 were identified...
March 21, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28323657/histology-and-gadolinium-distribution-in-the-rodent-brain-after-the-administration-of-cumulative-high-doses-of-linear-and-macrocyclic-gadolinium-based-contrast-agents
#14
Jessica Lohrke, Anna-Lena Frisk, Thomas Frenzel, Laura Schöckel, Martin Rosenbruch, Gregor Jost, Diana Constanze Lenhard, Martin A Sieber, Volker Nischwitz, Astrid Küppers, Hubertus Pietsch
OBJECTIVES: Retrospective studies in patients with primary brain tumors or other central nervous system pathologies as well as postmortem studies have suggested that gadolinium (Gd) deposition occurs in the dentate nucleus (DN) and globus pallidus (GP) after multiple administrations of primarily linear Gd-based contrast agents (GBCAs). However, this deposition has not been associated with any adverse effects or histopathological alterations. The aim of this preclinical study was to systematically examine differences between linear and macrocyclic GBCAs in their potential to induce changes in brain and skin histology including Gd distribution in high spatial resolution...
March 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28323471/estimating-the-proportion-of-childhood-cancer-cases-and-costs-attributable-to-the-environment-in-california
#15
Lauren Nelson, Jhaqueline Valle, Galatea King, Paul K Mills, Maxwell J Richardson, Eric M Roberts, Daniel Smith, Paul English
OBJECTIVES: To estimate the proportion of cases and costs of the most common cancers among children aged 0 to 14 years (leukemia, lymphoma, and brain or central nervous system tumors) that were attributable to preventable environmental pollution in California in 2013. METHODS: We conducted a literature review to identify preventable environmental hazards associated with childhood cancer. We combined risk estimates with California-specific exposure prevalence estimates to calculate hazard-specific environmental attributable fractions (EAFs)...
March 21, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28321136/procarbazine-lomustine-and-vincristine-pcv-regimen-for-central-nervous-system-tumors
#16
Dominic A Solimando, J Aubrey Waddell
The complexity of cancer chemotherapy requires pharmacists be familiar with the complicated regimens and highly toxic agents used. This column reviews various issues related to preparation, dispensing, and administration of antineoplastic therapy, and the agents, both commercially available and investigational, used to treat malignant diseases. Questions or suggestions for topics should be addressed to Dominic A. Solimando, Jr, President, Oncology Pharmacy Services, Inc., 4201 Wilson Blvd #110-545, Arlington, VA 22203, e-mail: OncRxSvc@comcast...
February 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/28319448/rationale-and-design-of-a-phase-1-clinical-trial-to-evaluate-hsv-g207-alone-or-with-a-single-radiation-dose-in-children-with-progressive-or-recurrent-malignant-supratentorial-brain-tumors
#17
Alicia M Waters, James M Johnston, Alyssa T Reddy, John Fiveash, Avi Madan-Swain, Kara Kachurak, Asim K Bag, G Yancey Gillespie, James M Markert, Gregory K Friedman
Primary central nervous system tumors are the most common solid neoplasm of childhood and the leading cause of cancer-related death in pediatric patients. Survival rates for children with malignant supratentorial brain tumors are poor despite aggressive treatment with combinations of surgery, radiation, and chemotherapy, and survivors often suffer from damaging lifelong sequelae from current therapies. Novel innovative treatments are greatly needed. One promising new approach is the use of a genetically engineered, conditionally replicating herpes simplex virus (HSV) that has shown tumor-specific tropism and potential efficacy in the treatment of malignant brain tumors...
March 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28319103/microglia-activation-due-to-obesity-programs-metabolic-failure-leading-to-type-two-diabetes
#18
REVIEW
R Maldonado-Ruiz, L Montalvo-Martínez, L Fuentes-Mera, A Camacho
Obesity is an energy metabolism disorder that increases susceptibility to the development of metabolic diseases. Recently, it has been described that obese subjects have a phenotype of chronic inflammation in organs that are metabolically relevant for glucose homeostasis and energy. Altered expression of immune system molecules such as interleukins IL-1, IL-6, IL-18, tumor necrosis factor alpha (TNF-α), serum amyloid A (SAA), and plasminogen activator inhibitor-1 (PAI-1), among others, has been associated with the development of chronic inflammation in obesity...
March 20, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28318756/radon-exposure-and-tumors-of-the-central-nervous-system
#19
Alberto Ruano-Ravina, Ana Dacosta-Urbieta, Juan Miguel Barros-Dios, Karl T Kelsey
OBJECTIVE: To review the published evidence of links between radon exposure and central nervous system tumors through a systematic review of the scientific literature. METHODS: We performed a thorough bibliographic search in Medline (PubMed) and EMBASE. We combined MeSH (Medical Subject Heading) terms and free text. We developed a purpose-designed scale to assess the quality of the included manuscripts. RESULTS: We have included 18 studies, 8 performed on miners, 3 on the general population and 7 on children, and the results have been structured using this classification...
March 15, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28316990/diagnostic-and-therapeutic-biomarkers-in-glioblastoma-current-status-and-future-perspectives
#20
REVIEW
Wojciech Szopa, Thomas A Burley, Gabriela Kramer-Marek, Wojciech Kaspera
Glioblastoma (GBM) is a primary neuroepithelial tumor of the central nervous system, characterized by an extremely aggressive clinical phenotype. Patients with GBM have a poor prognosis and only 3-5% of them survive for more than 5 years. The current GBM treatment standards include maximal resection followed by radiotherapy with concomitant and adjuvant therapies. Despite these aggressive therapeutic regimens, the majority of patients suffer recurrence due to molecular heterogeneity of GBM. Consequently, a number of potential diagnostic, prognostic, and predictive biomarkers have been investigated...
2017: BioMed Research International
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