Abstract:
BACKGROUND:Choroid plexus tumors (CPTs) are intraventricular brain tumors predominantly arising in children but also affecting adults. In most cases, driver mutations have not been identified, although there are reports of frequent chromosome-wide copy-number alterations and TP53 mutations, especially in choroid plexus carcinomas (CPCs). METHODS:DNA methylation profiling and RNA-sequencing was performed in a series of 47 CPTs. Samples comprised 35 choroid plexus papillomas (CPPs), 6 atypical choroid plexus papillomas (aCPPs) and 6 CPCs plus three recurrences thereof. Targeted TP53 and TERT promotor sequencing was performed in all samples. Whole exome sequencing (WES) and linked-read whole genome sequencing (WGS) was performed in 25 and 4 samples, respectively. RESULTS:Tumors comprised the molecular subgroups "pediatric A" (N=11), "pediatric B" (N=12) and "adult" (N=27). Copy-number alterations mainly represented whole-chromosomal alterations with subgroup-specific enrichments (gains of Chr1, 2 and 21q in "pediatric B" and gains of Chr5 and 9 and loss of Chr21q in "adult"). RNA sequencing yielded a novel CCDC47-PRKCA fusion transcript in one adult choroid plexus papilloma patient with aggressive clinical course; an underlying Chr17 inversion was demonstrated by linked-read WGS. WES and targeted sequencing showed TP53 mutations in 7/47 CPTs (15%), five of which were children. On the contrary, TERT promoter mutations were encountered in 7/28 adult patients (25%) and associated with shorter progression-free survival (log-rank test, p=0.015). CONCLUSION:Pediatric CPTs lack recurrent driver alterations except for TP53, whereas CPTs in adults show TERT promoter mutations or a novel CCDC47-PRKCA gene fusion, being associated with a more unfavorable clinical course.
journal_name
Neuro Oncoljournal_title
Neuro-oncologyauthors
Thomas C,Soschinski P,Zwaig M,Oikonomopoulos S,Okonechnikov K,Pajtler KW,Sill M,Schweizer L,Koch A,Neumann J,Schüller U,Sahm F,Rauschenbach L,Keyvani K,Proescholdt M,Riemenschneider MJ,Segewiß J,Ruckert C,Grauer O,Mdoi
10.1093/neuonc/noaa267subject
Has Abstractpub_date
2020-11-29 00:00:00eissn
1522-8517issn
1523-5866pii
6010433pub_type
杂志文章相关文献
NEURO-ONCOLOGY文献大全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
pub_type: 杂志文章
doi:10.1093/neuonc/not015
更新日期:2013-06-01 00:00:00
abstract::We investigated the activation of platelet-derived growth factor (PDGF) receptor A (PDGFRA), PDGF receptor B (PDGFRB), epidermal growth factor receptor (EGFR), and their downstream pathways in malignant peripheral nerve sheath tumors (MPNSTs). PDGFRA, PDGFRB, and EGFR were immunohistochemically, biochemically, cytogen...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1215/15228517-2009-003
更新日期:2009-12-01 00:00:00
abstract::We explored the feasibility of concurrent palliative chemotherapy and low-dose fractionated radiotherapy (LD-FRT) in glioblastoma multiforme (GBM). Patients with recurrent/progressive GBM at least 3 months after the end of primary radiotherapy received 0.3 Gy twice daily with cisplatin and fotemustine if progressing o...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor173
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Glioblastoma multiforme (GBM) is characterized by an aggressive clinical course, therapeutic resistance, and striking molecular heterogeneity. GBM-derived brain tumor stem cells (BTSCs) closely model this molecular heterogeneity and likely have a key role in tumor recurrence and therapeutic resistance. Emerg...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nos302
更新日期:2013-02-01 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
pub_type: 杂志文章
doi:10.1215/15228517-2008-113
更新日期:2009-10-01 00:00:00
abstract::The purpose of this study was to determine the dose-limiting toxicities, maximum tolerated dose, pharmacokinetics, and intratumor and brain distribution of motexafin gadolinium (MGd) with involved field radiation therapy in children with newly diagnosed intrinsic pontine gliomas. MGd was administered as a 5-min intrav...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1215/15228517-2008-043
更新日期:2008-10-01 00:00:00
abstract::Background Nuclear factor IA (NFIA), a transcription factor and essential regulator in embryonic glial development, is highly expressed in human glioblastoma (GBM) compared with normal brain, but its contribution to GBM and cancer pathogenesis is unknown. Here we demonstrate a novel role for NFIA in promoting growth a...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not167
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Temporal muscle thickness (TMT) was described as a surrogate marker of skeletal muscle mass. This study aimed to evaluate the prognostic relevance of TMT in patients with progressive glioblastoma. METHODS:TMT was analyzed on cranial MR images of 596 patients with progression of glioblastoma after radiochemo...
journal_title:Neuro-oncology
pub_type: 杂志文章,随机对照试验
doi:10.1093/neuonc/noz131
更新日期:2019-12-17 00:00:00
abstract::Data on spinal ependymomas are sparse, and prognostic factors remain controversial. The primary aim of this study is to review a historical cohort, with large patient numbers and long follow-up, and provide estimates of time to progression (TTP) and survival after progression. As a secondary aim, we assess the effects...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1215/S1152851704001231
更新日期:2005-07-01 00:00:00
abstract::An increase in the incidence of CNS tumors has been observed in many countries in the last decades. The reality of this trend has been much debated, as it has happened during a period when computer-assisted tomography and MRI have dramatically improved the detection of these tumors. The Gironde CNS Tumor Registry prov...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor120
更新日期:2011-12-01 00:00:00
abstract::Glioblastoma multiforme (GBM) continues to be a difficult therapeutic challenge. Our study was conducted to determine whether improved survival and tumor control could be achieved with modern delivery of fast neutron radiation using three-dimensional treatment planning. Ten patients were enrolled. Eligibility criteria...
journal_title:Neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1215/15228517-2007-044
更新日期:2008-02-01 00:00:00
abstract::Stereotactic biopsy is often performed for diagnostic purposes before treating patients whose imaging studies highly suggest glioma. Indications cited for biopsy include diagnosis and/or the "inoperability" of the tumor. This study questions the routine use of stereotactic biopsy in the initial management of gliomas. ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/3.3.193
更新日期:2001-07-01 00:00:00
abstract::Diffuse intrinsic pontine glioma (DIPG) has proven to be one of the most challenging of all pediatric cancers. Owing to a historical reticence to obtain tumor tissue for study, and based on an erroneous assumption that the biology of DIPG would mirror that of supratentorial high-grade astrocytomas, innumerable studies...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/nox021
更新日期:2017-08-01 00:00:00
abstract::In the present study we described the role of alpha9beta1 integrin in glioblastoma progression following its interaction with nerve growth factor (NGF). The level of expression of alpha9beta1 on astrocytomas is correlated with increased grade of this brain tumor and is highest on glioblastoma, whereas normal astrocyte...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1215/15228517-2008-047
更新日期:2008-12-01 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
pub_type: 杂志文章,收录出版
doi:10.1093/neuonc/nor116
更新日期:2011-11-01 00:00:00
abstract::Antiangiogenic therapy is associated with increased radiographic responses in glioblastomas, but tumors invariably recur. Because tumor-associated macrophages have been shown to mediate escape from antiangiogenic therapy in preclinical models, we examined the role of macrophages in patients with recurrent glioblastoma...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not082
更新日期:2013-08-01 00:00:00
abstract::Treatment for newly diagnosed anaplastic oligodendroglial tumors is controversial. Radiotherapy (RT) alone and in combination with chemotherapy (CT) are the most well studied strategies. However, CT alone is often advocated, especially in cases with 1p19q codeletion. We retrospectively identified 1013 adults diagnosed...
journal_title:Neuro-oncology
pub_type: 杂志文章,多中心研究
doi:10.1093/neuonc/nor040
更新日期:2011-06-01 00:00:00
abstract::Malignant gliomas are the most common and lethal primary intracranial tumors. To date, no reliable biomarkers for the detection and risk stratification of gliomas have been identified. Recently, we demonstrated significant levels of microRNAs (miRNAs) to be present in cerebrospinal fluid (CSF) samples from patients wi...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor169
更新日期:2012-01-01 00:00:00
abstract:Background:Copy number alterations form prognostic molecular subtypes of glioblastoma with clear differences in median overall survival. In this study, we leverage molecular data from several glioblastoma cohorts to define the distribution of copy number subtypes across random cohorts as well as cohorts with selection ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/noy108
更新日期:2018-09-03 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
pub_type: 杂志文章
doi:10.1093/neuonc/1.2.89
更新日期:1999-04-01 00:00:00
abstract::The 2007 World Health Organization (WHO) classification of brain tumors did not use molecular abnormalities as diagnostic criteria. Studies have shown that genotyping allows a better prognostic classification of diffuse glioma with improved treatment selection. This has resulted in a major revision of the WHO classifi...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/now277
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Cognitive dysfunction is common among patients with brain tumors and can be associated with the disease and treatment with radiotherapy and chemotherapy. However, little is known about genetic risk factors that may moderate the vulnerability for developing cognitive dysfunction. In this study, we examined th...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/now057
更新日期:2016-10-01 00:00:00
abstract::On October 15, 2014, a workshop was held on the use of clinical outcome assessments in clinical trials for high-grade glioma of the brain. This workshop was sponsored by the Jumpstarting Brain Tumor Drug Development Coalition, consisting of the National Brain Tumor Society, the Society for Neuro-Oncology, the Musella ...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/nov270
更新日期:2016-03-01 00:00:00
abstract::Functional diffusion mapping (fDM) has shown promise as a sensitive imaging biomarker for predicting survival in initial studies consisting of a small number of patients, mixed tumor grades, and before routine use of anti-angiogenic therapy. The current study tested whether fDM performed before and after radiochemothe...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor220
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:No more than half of patients with neurofibromatosis type 1 (NF1)-associated optic pathway gliomas (OPGs) develop vision loss. Prospectively identifying those who will require therapy remains challenging, because no reliable factors have yet been identified that predict future vision loss. To determine wheth...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not068
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:Genetic and epigenetic profiling of glioblastomas has provided a comprehensive list of altered cancer genes of which only O(6)-methylguanine-methyltransferase (MGMT) methylation is used thus far as a predictive marker in a clinical setting. We investigated the prognostic significance of genetic and epigeneti...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nou005
更新日期:2014-09-01 00:00:00
abstract:Background:Glioblastoma (GBM) is one of the most common, aggressive, and invasive human brain tumors. There are few reliable mechanism-based therapeutic approaches for GBM patients. The transcriptional repressor RE1 silencing transcriptional factor (REST) regulates the oncogenic properties of a class of GBM stem-like c...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/now232
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:The standard of care for newly diagnosed glioblastoma is maximal safe surgical resection, followed by chemoradiation therapy. We assessed carmustine wafer implantation efficacy and safety when used in combination with standard care. METHODS:Included were adult patients with (n = 354, implantation group) and...
journal_title:Neuro-oncology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1093/neuonc/nov126
更新日期:2015-12-01 00:00:00
abstract::Intradural spinal tumors are rare tumors of the central nervous system. Due to the eloquence of the spinal cord and its tracts, the compact architecture of the cord and nerves, and the infiltrative nature of some of these tumors, surgical resection is difficult to achieve without causing neurological deficits. Likewis...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/nox230
更新日期:2018-05-18 00:00:00
abstract:Background:Molecular profile of glioblastoma multiforme (GBM) revealed 4 subtypes, 2 of which, proneural and mesenchymal, have been predominantly observed, with the latter displaying a more aggressive phenotype and increased therapeutic resistance. Single-cell RNA sequencing revealed that multiple subtypes actually res...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/now253
更新日期:2017-06-01 00:00:00