Abstract:
BACKGROUND:Diffuse intrinsic pontine glioma (DIPG) is associated with poor survival regardless of therapy. We used volumetric apparent diffusion coefficient (ADC) histogram metrics to determine associations with progression-free survival (PFS) and overall survival (OS) at baseline and after radiation therapy (RT). METHODS:Baseline and post-RT quantitative ADC histograms were generated from fluid-attenuated inversion recovery (FLAIR) images and enhancement regions of interest. Metrics assessed included number of peaks (ie, unimodal or bimodal), mean and median ADC, standard deviation, mode, skewness, and kurtosis. RESULTS:Based on FLAIR images, the majority of tumors had unimodal peaks with significantly shorter average survival. Pre-RT FLAIR mean, mode, and median values were significantly associated with decreased risk of progression; higher pre-RT ADC values had longer PFS on average. Pre-RT FLAIR skewness and standard deviation were significantly associated with increased risk of progression; higher pre-RT FLAIR skewness and standard deviation had shorter PFS. Nonenhancing tumors at baseline showed higher ADC FLAIR mean values, lower kurtosis, and higher PFS. For enhancing tumors at baseline, bimodal enhancement histograms had much worse PFS and OS than unimodal cases and significantly lower mean peak values. Enhancement in tumors only after RT led to significantly shorter PFS and OS than in patients with baseline or no baseline enhancement. CONCLUSIONS:ADC histogram metrics in DIPG demonstrate significant correlations between diffusion metrics and survival, with lower diffusion values (increased cellularity), increased skewness, and enhancement associated with shorter survival, requiring future investigations in large DIPG clinical trials.
journal_name
Neuro Oncoljournal_title
Neuro-oncologyauthors
Poussaint TY,Vajapeyam S,Ricci KI,Panigrahy A,Kocak M,Kun LE,Boyett JM,Pollack IF,Fouladi Mdoi
10.1093/neuonc/nov256subject
Has Abstractpub_date
2016-05-01 00:00:00pages
725-34issue
5eissn
1522-8517issn
1523-5866pii
nov256journal_volume
18pub_type
杂志文章相关文献
NEURO-ONCOLOGY文献大全abstract::Protein kinase C alpha (PKC-alpha) is a cytoplasmic serine threonine kinase involved in regulating cell differentiation and proliferation. Aprinocarsen is an antisense oligonucleotide against PKC-alpha that reduces PKC-alphain human cell lines and inhibits a human glioblastoma tumor cell line in athymic mice. In this ...
journal_title:Neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1215/S1152851703000353
更新日期:2005-01-01 00:00:00
abstract::The majority of meningiomas are probably benign but a number of tumors display considerable histological and/or clinical aggressivity, sometimes with unexpectedly high recurrence rates after radical removal. Understanding the potential behavior of these tumors in individual patients is critical for rational therapeuti...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/noq081
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Temozolomide (TMZ) resistance in Glioblastoma (GBM) is mediated by the DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT). MGMT promoter methylation (occurs in about 40% patients) is associated with loss of MGMT expression (MGMT-) that compromises DNA repair, leading to a favorable response to ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/noab003
更新日期:2021-01-12 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::Diffuse low-grade glioma grows, migrates along white matter tracts, and progresses to high-grade glioma. Rather than a "wait and see" policy, an aggressive attitude is now recommended, with early surgery as the first therapy. Intraoperative mapping, with maximal resection according to functional boundaries, is associa...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/nou153
更新日期:2015-03-01 00:00:00
abstract::Neurofibromatosis type 2 (NF2) is an autosomal-dominant disease that results in the formation of bilateral vestibular schwannomas (VSs) and multiple meningiomas. Treatment options for NF2-associated tumors are limited, and to date, no medical therapies are FDA approved. The ideal chemotherapeutic agent would inhibit b...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor072
更新日期:2011-09-01 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
pub_type: 杂志文章,评审
doi:10.1215/S1152851705000232
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Twenty-five germline variants are associated with adult diffuse glioma, and some of these variants have been shown to be associated with particular subtypes of glioma. We hypothesized that additional germline variants could be identified if a genome-wide association study (GWAS) were performed by molecular s...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/noaa117
更新日期:2020-11-26 00:00:00
abstract:BACKGROUND:Meningiomas are the most commonly diagnosed primary intracranial neoplasms. Despite significant advances in modern therapies, the management of malignant meningioma and skull base meningioma remains a challenge. Thus, the development of new treatment modalities is urgently needed for these difficult-to-treat...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not007
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:Higher-grade meningiomas (HGMs; World Health Organization grades II and III) pose a clinical problem due to high recurrence rates and the absence of effective therapy. Preclinical development of novel therapeutics requires a disease model that recapitulates the genotype and phenotype of patient HGM. Oncolyti...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/now031
更新日期:2016-09-01 00:00:00
abstract::Histone modification has emerged as a promising approach to cancer therapy. We explored the in vivo efficacy of a butyric acid derivative, pivaloyloxymethyl butyrate (AN-9), for the treatment of gliomas. Relative to control and single-modality treatments, the combination of AN-9 and radiation significantly inhibited t...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1215/15228517-2006-032
更新日期:2007-04-01 00:00:00
abstract::The blood-brain barrier (BBB) excludes the vast majority of cancer therapeutics from normal brain. However, the importance of the BBB in limiting drug delivery and efficacy is controversial in high-grade brain tumors, such as glioblastoma (GBM). The accumulation of normally brain impenetrant radiographic contrast mate...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1093/neuonc/nox175
更新日期:2018-01-22 00:00:00
abstract:BACKGROUND:Recent molecular characterization studies have identified clinically relevant molecular subtypes to coexist within the same histological entities of glioma. Comparative studies between serum-supplemented and serum-free (SF) culture conditions have demonstrated that SF conditions select for glioma stem-like c...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not116
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:Brain-derived neurotrophic factor (BDNF), a neurotrophin that regulates neuronal function and development, is implicated in several neurodegenerative conditions. Preliminary data suggest that a reduction of BDNF concentrations may lead to postchemotherapy cognitive impairment. We hypothesized that a single n...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nov162
更新日期:2016-02-01 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::Secreted protein acidic and rich in cysteine (SPARC) has a suppressive effect on U87 glioma cell proliferation when assessed in vitro and in vivo using parental U87T2 and U87T2-derived SPARC-transfected clones. Since SPARCinteracts with extracellular matrix (ECM) proteins, we examined the effect of SPARC secretion on ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/5.4.244
更新日期:2003-10-01 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
pub_type: 杂志文章
doi:10.1093/neuonc/nos217
更新日期:2012-11-01 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
pub_type: 杂志文章
doi:10.1093/neuonc/nov014
更新日期:2015-09-01 00:00:00
abstract:INTRODUCTION:Surgery is first-line therapy for glioblastoma, and there is evidence that gross total resection is associated with improved survival. Gross total resection, however, is not always possible, and relationships among extent (percent) of resection (EOR), residual volume (RV), and survival are unknown. The goa...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not137
更新日期:2014-01-01 00:00:00
abstract::Angiogenesis is necessary for tumor growth beyond a volume of approximately 2 mm(3). This observation, along with the accessibility of tumor vessels to therapeutic targeting, has resulted in a research focus on inhibitors of angiogenesis. A number of endogenous inhibitors of angiogenesis are found in the body. Some of...
journal_title:Neuro-oncology
pub_type: 杂志文章,评审
doi:10.1215/S115285170400119X
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Glioblastoma multiforme (GBM) is the most frequent malignant brain tumor in adults, and its prognosis remains dismal despite intensive research and therapeutic advances. Diagnostic biomarkers would be clinically meaningful to allow for early detection of the tumor and for those cases in which surgery is cont...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/not218
更新日期:2014-04-01 00:00:00
abstract::Current treatments for brain cancer have, for the most part, equivocal survival benefit. However, clinical trials of new anticancer agents do not adequately assess potential clinical benefits for patient function other than survival and time to tumor progression. We evaluated 56 patients with recurrent brain tumors wh...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/5.2.89
更新日期:2003-04-01 00:00:00
abstract::Survival alone is no longer an adequate outcome for persons with brain tumors; the quality of the survivorship experience should be viewed with equal importance. Symptom management is a significant component of quality survivorship care. Regardless of their histology, brain tumors and therapies used to treat them prod...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/noy100
更新日期:2018-11-09 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
pub_type: 杂志文章
doi:10.1093/neuonc/nov064
更新日期:2015-12-01 00:00:00
abstract:Background:Arterial spin labeling is an MR imaging technique that measures cerebral blood flow (CBF) non-invasively. The aim of the study is to assess the diagnostic performance of arterial spin labeling (ASL) MR imaging for differentiation between high-grade glioma and low-grade glioma. Methods:Cochrane Library, Emba...
journal_title:Neuro-oncology
pub_type: 杂志文章,meta分析
doi:10.1093/neuonc/noy095
更新日期:2018-10-09 00:00:00
abstract:BACKGROUND:Expression of programmed cell death protein 1 (PD-1)/programmed death ligand 1 (PD-L1) across glioma grades is undocumented, and their interactions with commonly expressed genetic and epigenetic alterations are undefined but nonetheless highly relevant to combinatorial treatments. METHODS:Patients with CNS ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/now132
更新日期:2016-10-01 00:00:00
abstract::This study was conducted to determine the maximum tolerated dose and dose-limiting toxicity of irinotecan (CPT-11) administered every 3 weeks to adults with progressive malignant glioma who were treated with enzyme inducing antiepileptic drug (EIAED) therapy, and to compare the pharmacokinetics with those in patients ...
journal_title:Neuro-oncology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1215/S1152851703000292
更新日期:2004-01-01 00:00:00
abstract::The objective of this study was to evaluate whether longitudinal levels of serum YKL-40 correlate with disease status or survival in adults with gliomas. Patients with histologically confirmed gliomas were eligible for this longitudinal study. Serum samples were collected prospectively and concurrently with MRI scans ...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor117
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Both the epidermal growth factor receptor and vascular endothelial growth factor pathways are frequently overexpressed in glioblastoma multiforme. This study combined bevacizumab, a vascular endothelial growth factor inhibitor, and erlotinib, an epidermal growth factor receptor inhibitor, with standard radia...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nou029
更新日期:2014-07-01 00:00:00
abstract::Glioma is the most common adult primary brain tumor. Its most malignant form, glioblastoma multiforme (GBM), is almost invariably fatal, due in part to the intrinsic resistance of GBM to radiation- and chemotherapy-induced apoptosis. We analyzed B-cell leukemia-2 (Bcl-2) anti-apoptotic proteins in GBM and found myeloi...
journal_title:Neuro-oncology
pub_type: 杂志文章
doi:10.1093/neuonc/nor119
更新日期:2011-11-01 00:00:00