PTEN promoter methylation and activation of the PI3K/Akt/mTOR pathway in pediatric gliomas and influence on clinical outcome.

abstract：:Paragangliomas are rare tumors of the paraganglia composed of specialized neural crest cells arising in association with sympathetic ganglia. Here we report a case of progressive, metastatic paraganglioma (glomus jugulare tumor) responsive to single agent gemcitabine. In addition, a brief review of chemotherapy for pa...

journal_title：Neuro-oncology

authors： Pipas JM,Krywicki RF

更新日期：2000-07-01 00:00:00

abstract：BACKGROUND:Whole-brain radiotherapy (WBRT) in patients with brain metastases (BM) is associated with neurocognitive decline. Given its crucial role in learning and memory, efforts to mitigate this toxicity have mostly focused on sparing radiation to the hippocampus. We hypothesized that BM are not evenly distributed ac...

journal_title：Neuro-oncology

authors： Yanagihara TK,McFaline-Figueroa JR,Giacalone NJ,Lee AW,Soni V,Hwang ME,Hsieh KT,Saraf A,Wu CC,Yang D,Wen PY,Ashamalla H,Aizer AA,Wang TJC,Huang RY

更新日期：2019-05-06 00:00:00

abstract：:Blood vessels are composed of two interacting cell types. Endothelial cells form the inner lining of the vessel wall, and perivascular cells--referred to as pericytes, vascular smooth muscle cells or mural cells--envelop the surface of the vascular tube. Over the last decades, studies of blood vessels have concentrate...

journal_title：Neuro-oncology

authors： Bergers G,Song S

更新日期：2005-10-01 00:00:00

abstract：:The long-term follow-up of the RTOG 9802 trial that compared 54 Gy of radiotherapy (RT) with the same RT followed by adjuvant procarbazine, CCNU, and vincristine (PCV) chemotherapy in high-risk low-grade glioma shows a major increase in survival after adjuvant PCV chemotherapy. Median overall survival increased from 7...

journal_title：Neuro-oncology

authors： van den Bent MJ

更新日期：2014-12-01 00:00:00

abstract：BACKGROUND:Accumulation and infiltration of microglia/brain macrophages around and into glioma tissue promote tumor invasion and expansion. One tumor-promoting mechanism of microglia/brain macrophages is upregulation of membrane type 1 matrix metalloprotease (MT1-MMP), which promotes the degradation of extracellular ma...

journal_title：Neuro-oncology

authors： Hu F,Dzaye O,Hahn A,Yu Y,Scavetta RJ,Dittmar G,Kaczmarek AK,Dunning KR,Ricciardelli C,Rinnenthal JL,Heppner FL,Lehnardt S,Synowitz M,Wolf SA,Kettenmann H

更新日期：2015-02-01 00:00:00

abstract：INTRODUCTION:Overexpression of the Polycomb repressive complex 2 (PRC2) subunit Enhancer of Zeste 2 (EZH2) occurs in several malignancies, including prostate cancer, breast cancer, medulloblastoma, and glioblastoma multiforme. Recent evidence suggests that EZH2 may also have a role in rhabdoid tumors. Atypical teratoid...

journal_title：Neuro-oncology

authors： Alimova I,Birks DK,Harris PS,Knipstein JA,Venkataraman S,Marquez VE,Foreman NK,Vibhakar R

更新日期：2013-02-01 00:00:00

abstract：:For gamma knife planning, 2.4-mm-slice MRIs are taken under rigid frame fixation, so tiny tumors become visible. This study evaluated differences in the numbers of brain metastases between conventional contrast-enhanced MRI (6 ± 1 mm slice thickness) taken before patient referral and contrast-enhanced MRI for gamma kn...

journal_title：Neuro-oncology

authors： Nagai A,Shibamoto Y,Mori Y,Hashizume C,Hagiwara M,Kobayashi T

更新日期：2010-11-01 00:00:00

abstract：BACKGROUND:Optimal extent of surgical resection (EOR) of high-grade gliomas (HGGs) remains uncertain in the elderly given the unclear benefits and potentially higher rates of mortality and morbidity associated with more extensive degrees of resection. METHODS:We undertook a meta-analysis according to a predefined prot...

journal_title：Neuro-oncology

authors： Almenawer SA,Badhiwala JH,Alhazzani W,Greenspoon J,Farrokhyar F,Yarascavitch B,Algird A,Kachur E,Cenic A,Sharieff W,Klurfan P,Gunnarsson T,Ajani O,Reddy K,Singh SK,Murty NK

更新日期：2015-06-01 00:00:00

abstract：Background:Previous reports have shown that overall incidence of malignant brain and other central nervous system (CNS) tumors varied significantly by country. The aim of this study was to estimate histology-specific incidence rates by global region and assess incidence variation by histology and age. Methods:Using da...

journal_title：Neuro-oncology

authors： Leece R,Xu J,Ostrom QT,Chen Y,Kruchko C,Barnholtz-Sloan JS

更新日期：2017-10-19 00:00:00

abstract：BACKGROUND:The colony stimulating factor 1 receptor (CSF1R) ligands, CSF1 and interleukin-34, and the KIT ligand, stem cell factor, are expressed in glioblastoma (GB). Microglia, macrophages, blood vessels, and tumor cells also express CSF1R, and depletion of the microglia reduces tumor burden and invasive capacity. PL...

journal_title：Neuro-oncology

authors： Butowski N,Colman H,De Groot JF,Omuro AM,Nayak L,Wen PY,Cloughesy TF,Marimuthu A,Haidar S,Perry A,Huse J,Phillips J,West BL,Nolop KB,Hsu HH,Ligon KL,Molinaro AM,Prados M

更新日期：2016-04-01 00:00:00

abstract：:Development of model systems that recapitulate the molecular heterogeneity observed among glioblastoma multiforme (GBM) tumors will expedite the testing of targeted molecular therapeutic strategies for GBM treatment. In this study, we profiled DNA copy number and mRNA expression in 21 independent GBM tumor lines maint...

journal_title：Neuro-oncology

authors： Hodgson JG,Yeh RF,Ray A,Wang NJ,Smirnov I,Yu M,Hariono S,Silber J,Feiler HS,Gray JW,Spellman PT,Vandenberg SR,Berger MS,James CD

更新日期：2009-10-01 00:00:00

abstract：BACKGROUND:Assessment of treatment response by measuring tumor size is known to be a late and potentially confounded response index. Serial diffusion MRI has shown potential for allowing earlier and possibly more reliable response assessment in adult patients, with limited experience in clinical settings and in pediatr...

journal_title：Neuro-oncology

authors： Rodriguez Gutierrez D,Manita M,Jaspan T,Dineen RA,Grundy RG,Auer DP

更新日期：2013-08-01 00:00:00

abstract：:First-line therapy for patients with glioblastoma multiforme includes treatment with radiation and temozolomide (TMZ), an oral DNA alkylating chemotherapy. Sensitivity of glioma cells to TMZ is dependent on the level of cellular O(6)-methylguanine-DNA methyltransferase (MGMT) repair activity. Several common coding-reg...

journal_title：Neuro-oncology

authors： Remington M,Chtchetinin J,Ancheta K,Nghiemphu PL,Cloughesy T,Lai A

更新日期：2009-02-01 00:00:00

abstract：BACKGROUND:Cisplatin-Induced Peripheral Neuropathy (CIPN) is a frequent serious dose-dependent adverse event that can determine dosage limitations for cancer treatment. CIPN severity correlates with the amount of platinum detected in sensory neurons of the dorsal root ganglia (DRG). However, the exact pathophysiology o...

journal_title：Neuro-oncology

authors： Calls A,Torres-Espin A,Navarro X,Yuste VJ,Udina E,Bruna J

更新日期：2020-06-29 00:00:00

abstract：BACKGROUND:Promoter methylation of O(6)-methylguanine-DNA methyltransferase (MGMT) is an important predictive biomarker in glioblastoma. The T variant of the MGMT promoter-enhancer single nucleotide polymorphism (SNP; rs16906252) has been associated with the presence of MGMT promoter methylation in other cancers. We ex...

journal_title：Neuro-oncology

authors： Rapkins RW,Wang F,Nguyen HN,Cloughesy TF,Lai A,Ha W,Nowak AK,Hitchins MP,McDonald KL

更新日期：2015-12-01 00:00:00

abstract：:In photodynamic diagnosis, 5-aminolevulinic acid (5-ALA) is widely used for the fluorescence-guided resection of malignant brain tumors, where 5-ALA is converted to protoporphyrin IX, which exhibits strong fluorescence. Little is known, however, about the detailed molecular mechanisms underlying 5-ALA-induced fluoresc...

journal_title：Neuro-oncology

authors： Takahashi K,Ikeda N,Nonoguchi N,Kajimoto Y,Miyatake S,Hagiya Y,Ogura S,Nakagawa H,Ishikawa T,Kuroiwa T

更新日期：2011-11-01 00:00:00

abstract：:High-grade gliomas release excitotoxic concentrations of glutamate, which has been shown to enhance tumor proliferation and migration. alpha-Amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) glutamate receptors are abundantly expressed at the invading edge of glioblastoma specimens, suggesting they may play an...

journal_title：Neuro-oncology

authors： Piao Y,Lu L,de Groot J

更新日期：2009-06-01 00:00:00

abstract：:Gliomas are a heterogeneous group of brain tumors with distinct biological and clinical properties. Despite advances in surgical techniques and clinical regimens, treatment of high-grade glioma remains challenging and carries dismal rates of therapeutic success and overall survival. Challenges include the molecular co...

journal_title：Neuro-oncology

authors： Malta TM,de Souza CF,Sabedot TS,Silva TC,Mosella MS,Kalkanis SN,Snyder J,Castro AVB,Noushmehr H

更新日期：2018-04-09 00:00:00

abstract：:PDGFRA is a critical gene in glioma biology. Similar to EGFR, PDGFRA has been shown to be overexpressed, amplified, mutated, or truncated in gliomas, particularly glioblastomas. In addition, PDGFRA has been recently shown to be rearranged in glioblastoma. However, the frequency, cooccurrence, and clinical value of PDG...

journal_title：Neuro-oncology

authors： Alentorn A,Marie Y,Carpentier C,Boisselier B,Giry M,Labussière M,Mokhtari K,Hoang-Xuan K,Sanson M,Delattre JY,Idbaih A

更新日期：2012-11-01 00:00:00

abstract：BACKGROUND:Available evidence on diet and glioma risk comes mainly from studies with retrospective collection of dietary data. To minimize possible differential dietary recall between those with and without glioma, we present findings from 3 large prospective studies. METHODS:Participants included 692 176 from the UK ...

journal_title：Neuro-oncology

authors： Kuan AS,Green J,Kitahara CM,De González AB,Key T,K Reeves G,Floud S,Balkwill A,Bradbury K,Liao LM,Freedman ND,Beral V,Sweetland S,Million Women Study, the NIH-AARP study, and the PLCO study.

更新日期：2019-07-11 00:00:00

abstract：BACKGROUND:The objective was to evaluate the risk and predictors of developing leptomeningeal disease (LMD) in patients with brain metastases treated with 5-fraction hypofractionated stereotactic radiotherapy (HSRT). METHODS:Patients treated with HSRT for intact brain metastases and/or surgical cavities were reviewed ...

journal_title：Neuro-oncology

authors： Nguyen TK,Sahgal A,Detsky J,Atenafu EG,Myrehaug S,Tseng CL,Husain Z,Heyn C,Maralani P,Ruschin M,Perry J,Soliman H

更新日期：2020-01-11 00:00:00

abstract：:Oxidative stress is believed to play a key role in tumor formation. Although this mechanism could be especially pertinent for brain tumors given the high oxygen consumption of the brain, very little has been published regarding brain tumor risk with respect to genes mediating oxidative stress. Using data from non-Hisp...

journal_title：Neuro-oncology

authors： Rajaraman P,Hutchinson A,Rothman N,Black PM,Fine HA,Loeffler JS,Selker RG,Shapiro WR,Linet MS,Inskip PD

更新日期：2008-10-01 00:00:00

abstract：:This paper explicates the impact of tumor capillary permeability for glioma World Health Organization (WHO) grades II to IV on brain-penetrant drug entry and distribution within the tumor and the brain adjacent to tumor (leading edge). In addition, we consider the distribution of non-brain penetrant drugs and how, in ...

journal_title：Neuro-oncology

authors： Levin VA,Ellingson BM

更新日期：2018-04-09 00:00:00

abstract：:The Pediatric Oncology Group conducted a phase II study to evaluate the activity of carboplatin in children 5 years or younger with progressive optic pathway tumors (OPTs). Of the 51 patients accrued to this study, 1 was not eligible because the child was older than 6 years. Fifty patients were eligible and had either...

journal_title：Neuro-oncology

authors： Mahoney DH Jr,Cohen ME,Friedman HS,Kepner JL,Gemer L,Langston JW,James HE,Duffner PK,Kun LE

更新日期：2000-10-01 00:00:00

abstract：BACKGROUND:Altered expression of micro(mi)RNAs has been shown to be associated with tumorigenesis and tumor progression. The expression of phosphatase and tensin homolog (PTEN) plays an important role in glioma and is regarded as a prognostic marker of glioma patients. The goal of this study was to investigate the func...

journal_title：Neuro-oncology

authors： Wang XR,Luo H,Li HL,Cao L,Wang XF,Yan W,Wang YY,Zhang JX,Jiang T,Kang CS,Liu N,You YP,Chinese Glioma Cooperative Group (CGCG).

更新日期：2013-11-01 00:00:00

abstract：:Although treatment of medulloblastoma has improved, at least 30% of patients with this tumor die of progressive disease. Unfortunately, many of the children who survive suffer long-term treatment-related morbidity. Previous studies have demonstrated the efficacy of using oncolytic viruses to eradicate brain tumors. Th...

journal_title：Neuro-oncology

authors： Studebaker AW,Kreofsky CR,Pierson CR,Russell SJ,Galanis E,Raffel C

更新日期：2010-10-01 00:00:00

abstract：BACKGROUND:Micro (mi)RNAs are key regulators of gene expression and offer themselves as biomarkers for cancer development and progression. Meningioma is one of the most frequent primary intracranial tumors. As of yet, there are limited data on the role of miRNAs in meningioma of different histological subtypes and the ...

journal_title：Neuro-oncology

authors： Ludwig N,Kim YJ,Mueller SC,Backes C,Werner TV,Galata V,Sartorius E,Bohle RM,Keller A,Meese E

更新日期：2015-09-01 00:00:00

abstract：BACKGROUND:Mutations involving isocitrate dehydrogenase 1 (IDH 1) occur in a high proportion of diffuse gliomas, with implications on diagnosis and prognosis. About 90% involve exon 4 at codon 132, replacing amino acid arginine with histidine (R132H). Rarer ones include R132C, R132S, R132G, R132L, R132V, and R132P. Mos...

journal_title：Neuro-oncology

authors： Agarwal S,Sharma MC,Jha P,Pathak P,Suri V,Sarkar C,Chosdol K,Suri A,Kale SS,Mahapatra AK,Jha P

更新日期：2013-06-01 00:00:00

abstract：:The vasculature of 24 primary CNS B-cell lymphomas that were not related to acquired immunodeficiency syndrome was systematically studied by electron microscopy. Seven low-grade astrocytic tumors were included for comparison. Classical electron microscopy features of apoptosis were found in lymphoma cells of 21 of 22 ...

journal_title：Neuro-oncology

authors： Molnár PP,O'Neill BP,Scheithauer BW,Groothuis DR

更新日期：1999-04-01 00:00:00

abstract：BACKGROUND:A cDNA library made from 2 glioma cell lines, U87MG and T98G, was screened by serological identification of antigens by recombinant cDNA expression (SEREX) using serum from a glioblastoma patient. Elongation factor Tu GTP binding domain containing protein 1 (EFTUD1), which is required for ribosome biogenesis...

journal_title：Neuro-oncology

authors： Saito K,Iizuka Y,Ohta S,Takahashi S,Nakamura K,Saya H,Yoshida K,Kawakami Y,Toda M

更新日期：2014-12-01 00:00:00