Abstract:
:Radiation therapy (RT) for brain tumors is associated with neurocognitive toxicity which may be a result of damage to neural progenitor cells (NPCs). We present a novel technique to limit the radiation dose to NPC without compromising tumor coverage. A study was performed in mice to examine the rationale and another was conducted in humans to determine its feasibility. C57BL/6 mice received localized radiation using a dedicated animal irradiation system with on-board CT imaging with either: (1) Radiation which spared NPC containing regions; (2) Radiation which did not spare these niches; or (3) Sham irradiation. Mice were sacrificed 24 h later and the brains were processed for immunohistochemical Ki-67 staining. For the human component of the study, 33 patients with primary brain tumors were evaluated. Two intensity modulated radiotherapy (IMRT) plans were retrospectively compared: a standard clinical plan and a plan which spares NPC regions while maintaining the same dose coverage of the tumor. The change in radiation dose to the contralateral NPC-containing regions was recorded. In the mouse model, non-NPC-sparing radiation treatment resulted in a significant decrease in the number of Ki67(+) cells in dentate gyrus (DG) (P = 0.008) and subventricular zone (SVZ) (P = 0.005) compared to NPC-sparing radiation treatment. In NPC-sparing clinical plans, NPC regions received significantly lower radiation dose with no clinically relevant changes in tumor coverage. This novel radiation technique should significantly reduce radiation doses to NPC containing regions of the brain which may reduce neurocognitive deficits following RT for brain tumors.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Redmond KJ,Achanta P,Grossman SA,Armour M,Reyes J,Kleinberg L,Tryggestad E,Quinones-Hinojosa A,Ford ECdoi
10.1007/s11060-011-0530-8subject
Has Abstractpub_date
2011-09-01 00:00:00pages
579-87issue
2eissn
0167-594Xissn
1573-7373journal_volume
104pub_type
杂志文章abstract:QUESTION:Should patients with newly-diagnosed metastatic brain tumors undergo open surgical resection versus whole brain radiation therapy (WBRT) and/or other treatment modalities such as radiosurgery, and in what clinical settings? Target population These recommendations apply to adults with a newly diagnosed single b...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-009-0061-8
更新日期:2010-01-01 00:00:00
abstract::Ependymomas (EPN) show site specific genetic alterations and a recent DNA methylation profiling study identified nine molecular subgroups. C11orf95-RELA and YAP1 fusions characterise the RELA and YAP1 molecular subgroups, respectively, of supratentorial (ST)-EPNs. Current guidelines recommend molecular subgrouping ove...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-018-2767-y
更新日期:2018-05-01 00:00:00
abstract::High-grade gliomas release excitotoxic concentrations of glutamate which contributes to their malignant phenotype. To improve our understanding of the mechanisms by which glutamate enhances tumor growth and invasion, we examined alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA)-mediated signaling in glio...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-008-9552-2
更新日期:2008-06-01 00:00:00
abstract::A better understanding of the relationship between glioblastomas molecular subtypes and radio-chemotherapy is needed for the development of individualized strategies. In this study, we aimed to assess whether non-homologous end-joining (NHEJ) protein expression is associated and could predict responses to treatment of...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2367-7
更新日期:2017-04-01 00:00:00
abstract::Accumulating evidence has supported the role of microRNAs in the initiation and development of malignant tumors. MicroRNA-211 (miR-211), which was reported to involve in diverse physiological activities in several cancers, was investigated for its expression in human glioma and adjacent normal brain tissues, as well a...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-017-2464-2
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:Children with recurrent medulloblastoma have a poor prognosis. Re-irradiation is an option for some patients, but has not been well-studied in the era of molecular characterization for pediatric medulloblastoma. METHODS:This was a retrospective cohort study of 14 children age 18 years and younger at initial di...
journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s11060-019-03272-2
更新日期:2019-10-01 00:00:00
abstract::The authors report an unusual case of a myxopapillary ependymoma arising from the lateral ventricle. The patient, a 37-year-old woman, developed recurrent symptoms including scotomata, disorientation, and headache during two successive pregnancies before the definitive diagnosis. The causes of this ependymoma variant ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF01050071
更新日期:1993-03-01 00:00:00
abstract::Previous studies have shown an inverse association between allergies and glioma risk; however, results for associations between single nucleotide polymorphisms (SNPs) of allergy-related genes and glioma risk have been inconsistent and restricted to a small number of SNPs. The objective of this study was to examine the...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s11060-013-1122-6
更新日期:2013-06-01 00:00:00
abstract::The aim of this study was to assess the effectiveness of adding viral vector-mediated gene therapy with herpes simplex virus thymidine kinase (HSV-tk) to standard treatment, in comparison with standard treatment alone to treat patients with high-grade gliomas (HGGs). A literature search of the databases PubMed, Embase...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s11060-014-1444-z
更新日期:2014-06-01 00:00:00
abstract::Gliomatosis cerebri is a rare diffusely infiltrating primary neoplastic glial process of the brain. Our objective is to review clinical presentation, management, and outcome in a large single institution series of gliomatosis cerebri patients. 54 consecutive gliomatosis cerebri cases presenting to Mayo Clinic Rocheste...
journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s11060-013-1058-x
更新日期:2013-04-01 00:00:00
abstract:INTRODUCTION:Glioblastoma (GBM) is the most common primary brain cancer. The average survival time for the majority of patients is approximately 15 months after diagnosis. A major feature of GBM that contributes to its poor prognosis is its high invasiveness. Caveolae are plasma membrane subdomains that participate in ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-019-03161-8
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:Post-operative radiation therapy for brain metastases (BM) has become standard treatment. Concerns regarding the deleterious cognitive effects of Whole Brain Radiation Therapy spurred a trend to use focal therapies such as stereotactic radiosurgery (SRS). The purpose of this study was to prospectively evaluate ...
journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s11060-018-2954-x
更新日期:2018-11-01 00:00:00
abstract::Aberrant expression of stem cell-related genes in tumors may confer more primitive and aggressive traits affecting clinical outcome. Here, we investigated expression and prognostic value of the neural stem cell marker CD133, as well as of the pluripotency genes LIN28 and OCT4 in 37 samples of pediatric medulloblastoma...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0647-9
更新日期:2012-01-01 00:00:00
abstract::In the treatment of malignant glioma, chemotherapy plays a critical role as do surgical resection and irradiation. Cepharanthine (CEP), a biscoclaurine-derived alkaloid, reportedly potentiates the effects of antitumor agents and induces apoptosis in some cancer cells. Here, we examined the effects of CEP, alone and in...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1014548618440
更新日期:2002-01-01 00:00:00
abstract::Among diffuse gliomas, oligodendrogliomas may account for 25% of cases. They have a better prognosis and chemosensitivity as compared to astrocytomas. Genetic studies have shown a correlation between oligodendrocyte phenotype and presence of 1p/19q deletions. In addition, these deletions are of prognostic value. The a...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/b:neon.0000027758.10286.c1
更新日期:2004-06-01 00:00:00
abstract::Patients with high grade glioma generally have poor prognoses. Addition of radiosensitizing agents might improve the response to irradiation. The chemotherapeutic agent estramustine sensitizes experimental gliomas to radiation. Gliomas express estramustine binding proteins, and cytotoxic concentrations of estramustine...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/b:neon.0000021825.41221.b5
更新日期:2004-03-01 00:00:00
abstract::Supratentorial primitive neuroectodermal tumors (sPNET) occurring in adults are rare. Only 56 such cases have been previously reported. This report documents a 56-year-old male who presented with the chief complaint of right facial palsy. Magnetic resonance imaging (MRI) revealed left frontal and bilateral periventric...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-007-9466-4
更新日期:2008-01-01 00:00:00
abstract::We observed a stripe-like pattern of regional cerebral blood volume (rCBV) increase in a defined region adjacent to the contrast enhancement (CE) on MRI of glioblastomas (GBM) that we defined as the "striate sign" (SS). We hypothesized that the SS marks infiltration of GBM outside the CE volume transforming into futur...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0421-4
更新日期:2011-07-01 00:00:00
abstract::The authors studied 24 patients affected by anaplastic gliomas in regard to the killer (Antibody-Dependent Cellular Cytotoxicity) and natural killer (Spontaneous Lymphocyte-Mediated Cytotoxicity) immunological functions, by counting the Cr51 release in Change liver and K 562 cell cultures, respectively. These paramete...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00165716
更新日期:1983-01-01 00:00:00
abstract::Although bevacizumab has not proven effective in adults with newly diagnosed high-grade gliomas (HGG), feasibility in newly diagnosed children with diffuse intrinsic pontine gliomas (DIPG) or HGG has not been reported in a prospective study. In a safety and feasibility study, children and young adults with newly diagn...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-015-2008-6
更新日期:2016-03-01 00:00:00
abstract::Extraskeletal myxoid chondrosarcoma is a rare tumor with less than 100 cases reported in the literature. The prevalence of anti-Hu positive myxoid chondrosarcoma-associated paraneoplastic subacute cerebellar degeneration is exceedingly rare. We present a report of a patient with confirmed myxoid chondrosarcoma-associa...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0216-7
更新日期:2011-01-01 00:00:00
abstract::We characterized health-related quality of life (HRQoL), cognitive, and functional status in newly diagnosed glioblastoma (GBM) patients receiving Tumor treating fields (TTFields) with temozolomide (TMZ) versus TMZ alone in a planned interim analysis of a randomized phase III trial [NCT00916409], which showed signific...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s11060-017-2601-y
更新日期:2017-12-01 00:00:00
abstract::The aim of the present study was to evaluate the spectrum of late effects in a large cohort of pediatric patients with low-grade gliomas (WHO grade I and II) during an observation period of 20 years. Eighty-seven patients with low-grade gliomas grouped according to tumor location (cerebellum: n=28; cerebral hemisphere...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-005-9091-z
更新日期:2006-06-01 00:00:00
abstract::The basic mechanism of cell death induced by 5-aminolevulinic acid (5-ALA)-mediated photodynamic therapy (PDT) (ALA-PDT) in glioma cells has not been fully elucidated. In this study, the details of the cell death mechanism induced by ALA-PDT were investigated in three human glioma cell lines (U251MG, U87MG, and U118MG...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-006-9325-8
更新日期:2007-07-01 00:00:00
abstract::The biodistributions of carborane-containing copper porphyrins, CuTCP and CuTCPH, have been studied previously in mice bearing subcutaneously implanted mammary carcinomas. We now report biodistributions of those porphyrins in Fischer 344 rats bearing intracranial and/or multiple subcutaneous isogeneic 9L gliosarcomas ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1010622319892
更新日期:2001-04-01 00:00:00
abstract::A case of a functioning invasive pituitary oncocytoma in a 50-year-old man is reported. The serum prolactin was increased and immunocytochemical staining was positive for prolactin. In addition to numerous mitochondria within the neoplastic cells, structurally abnormal mitochondria with crystalline inclusions were als...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00165379
更新日期:1986-01-01 00:00:00
abstract::Diffuse invasion of the brain by tumor cells is a hallmark of human glioblastomas and a major cause for the poor prognosis of these tumors. This phenomenon is only partially reproduced by rodent models of gliomas that display a very high rate of proliferation and limited cell migration. We have analyzed the developmen...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1010620420241
更新日期:2001-05-01 00:00:00
abstract::Platelet-derived growth factor receptor (PDGFR) signaling plays an important role in the biology of malignant gliomas. To investigate mechanisms modulating PDGFR signaling in gliomagenesis, we employed a Drosophila glioma model and genetic screen to identify genes interacting with Pvr, the fly homolog of PDGFRs. Glial...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-015-1864-4
更新日期:2015-09-01 00:00:00
abstract::Neuron-specific enolase (NSE) is one of the iso-forms of enolase, a glycolytic enzyme found in the neuroendocrine system. NSE is one of the most widely used tumor markers in small-cell lung carcinoma (SCLC). To assess the value of NSE in discriminating between the sites of metastases in SCLC-patients with and without ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF01306456
更新日期:1994-01-01 00:00:00
abstract:OBJECT:Although atypical teratoid/rhabdoid tumor (AT/RT) is known to generate through inactivation of the hSNF5/INI1 gene on chromosome 22q, the downstream molecular mechanism remains unclear. We histologically and molecularly reviewed our pediatric brain tumors for unrecognized AT/RTs and evaluated the role of cyclin ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-004-4276-4
更新日期:2005-06-01 00:00:00