Abstract:
:The function of proteases in brain tumor invasion is currently not well established. For tumors of epithelial and fibromatous origin collagenase production can enhance the invasive capacity of cells to penetrate basement membranes. We showed previously that a c-Ha-ras transformed glial cell line (CxT24neo3) invaded hamster brain tissue in vivo. These cells were also capable of invading reconstituted basement membrane and embryonic chick hearts in vitro. Since the histopathology of CxT24neo3 tumors mimics that of glioblastoma multiforme in humans, CxT24neo3 was used as the model in vitro for this type of brain tumor. Presently, we detected by zymogram analysis a gelatinase that was secreted by CxT24neo3 and that had an apparent molecular mass of 62 kD. To verify whether gelatinase affected invasion in vitro of these glial cells we determined the efficacy of a substrate specific collagenase inhibitor on invasion in vitro. GM6001 is a synthetic polypeptide that specifically occupies the substrate binding sites of metalloprotease. Since this drug did not show cytotoxicity, its specificity for metalloprotease is a valuable tool to evaluate the physiological function of these enzymes on invasion. We found that treatment of CxT24neo3 with GM6001 reduced the fraction of invading CxT24neo3 cells through reconstituted basement membrane. These data suggest that metalloproteases can stimulate brain tumor invasion.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Boghaert ER,Chan SK,Zimmer C,Grobelny D,Galardy RE,Vanaman TC,Zimmer SGdoi
10.1007/BF01052898subject
Has Abstractpub_date
1994-01-01 00:00:00pages
141-50issue
2eissn
0167-594Xissn
1573-7373journal_volume
21pub_type
杂志文章abstract:BACKGROUND:Lymphomatoid granulomatosis (LYG) is an angiocentric and angiodestructive lymphoreticular proliferation, which usually involves the lungs, but may also involve the central nervous system (CNS). Unique involvement of the CNS has been reported rarely. We report our experience with LYG confined to the brain and...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-009-9834-3
更新日期:2009-09-01 00:00:00
abstract::In 2007 the WHO Classification of Tumours of the Central Nervous System introduced the entity "glioblastoma with oligodendroglioma component" (GBM/OLIGO). This entity accounts for approximately one in every ten new glioblastomas (GBM). In practice, those mixed gliomas with necrosis which were previously diagnosed as a...
journal_title:Journal of neuro-oncology
pub_type: 评论,杂志文章
doi:10.1007/s11060-010-0523-z
更新日期:2011-09-01 00:00:00
abstract::To identify molecular therapeutic targets for glioma, we performed gene expression profiling by using a complementary DNA (cDNA) microarray method and identified the urokinase plasminogen activator receptor-associated protein (uPARAP/Endo180) as a gene expressed highly in glioma tissue compared with the normal brain t...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0398-z
更新日期:2011-06-01 00:00:00
abstract::We studied the effect of intracarotid infusion of various calcium antagonists on regional CBF (rCBF) in the C6 rat glioma by a hydrogen clearance method. Nimodipine at doses of 0.1, 0.5 and 1 microgram/kg/min was found to produce tumor-specific increases in the rCBF (40.2 +/- 18.4%, p < 0.01, 67.8 +/- 32.6%, p < 0.001...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00146078
更新日期:1996-01-01 00:00:00
abstract::Despite the accumulating evidences of high chemosensitivity especially in anaplastic oligodendrogliomas with loss of chromosomes 1p and 19q, the optimal management strategy for low-grade tumors using the 1p/19q information remains controversial. We have treated all low-grade oligodendrogliomas by a chemotherapy-preced...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0340-4
更新日期:2011-05-01 00:00:00
abstract::Thirty-one patients with metastatic brain tumors that either failed to respond or recurred after conventional therapy were treated by intra-arterial infusion of 100 mg/m2 of 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) into either a carotid or vertebral artery. Five patients (three with lung cancer, one with breast can...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00165605
更新日期:1983-01-01 00:00:00
abstract:PURPOSE:Most recent literature has confirmed the efficacy of single-session radiosurgery (sRS) in the treatment of intracranial meningioma. Unfortunately, sRS is not always applicable due to large tumor volume and the proximity of the tumor to critical structures. When sRS is not recommended, multi-session radiosurgery...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,多中心研究
doi:10.1007/s11060-019-03196-x
更新日期:2019-07-01 00:00:00
abstract::Cancer related stroke may have different phenotypes from non-cancer stroke, especially in terms of stroke progression and recurrence. We performed a case-control study to identify their incidences and risk factors in cancer related stroke. Between January 2001 and December 2009, we conducted a retrospective review of ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-012-1011-4
更新日期:2013-02-01 00:00:00
abstract::This study aimed to explore the safety and efficacy of multisession gamma knife surgery (GKS) for large brain metastases with a volume of 10 cm3 or larger. Fifty-six patients who had 65 brain metastases with a volume of at least 10 cm3 were treated with multisession GKS. Three-session GKS at a prescription dose of 10 ...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2317-4
更新日期:2017-02-01 00:00:00
abstract::Retaspimycin hydrochloride (IPI-504), an Hsp90 (heat shock protein 90) inhibitor, has shown activity in multiple preclinical cancer models, such as lung, breast and ovarian cancers. However, its biological effects in gliomas and normal brain derived cellular populations remain unknown. In this study, we profiled the e...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-014-1579-y
更新日期:2014-12-01 00:00:00
abstract::Cavernous angiomas of the spinal cord exhibit imaging characteristics that may overlap with those of hemorrhagic ependymoma. In the present study, we aimed to identify specific magnetic resonance imaging (MRI) findings that could be used to differentiate cavernous angioma from hemorrhagic ependymoma, and to evaluate s...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2239-1
更新日期:2016-10-01 00:00:00
abstract::Overexpression of the EGFR, IGFBP-2 and HIF-2A genes has been observed in high-grade astrocytomas and these genes seem to be functionally related to one another. This study aimed to define the profile of their expressions, interactions and correlation with clinical features and prognostic significance in microdissecte...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-007-9328-0
更新日期:2007-07-01 00:00:00
abstract::Our laboratory and others have shown alternative splicing of up to ten exons at a discrete extracellular site to be primarily responsible for the generation of CD44 variant (CD44v) isoforms. Based on clear differences in the expression of these CD44v isoforms between normal and malignant tissues, we believe that eluci...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF01052627
更新日期:1995-12-01 00:00:00
abstract::High-dose (1-3.5 g/m2) methotrexate (MTX) followed by whole-brain radiation therapy (WBRT) has consistently improved length of survival in primary central nervous system lymphoma (PCNSL), but the prognosis remains dismal. To optimize and enhance the dose intensity of MTX, we applied MTX at 8 g/m2 to 20 patients with P...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1023760824739
更新日期:2003-05-01 00:00:00
abstract::Thymidine analogs (TAs) are synthetic nucleosides that incorporate into newly synthesized DNA. Halogenated pyrimidines (HPs), such as bromodeoxyuridine (BrdU), are a class of TAs that can be detected with antibodies and are commonly used for birthdating individual cells and for assessing the proliferative index of cel...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0621-6
更新日期:2011-12-01 00:00:00
abstract::To evaluate the safety and efficacy of hypofractionated radiotherapy (RT) with a standard temozolomide (TMZ) regimen for adults with newly diagnosed glioblastoma multiforme (GBM), twenty-six consecutive adults (range 39-79 years) who met our enrollment criteria received short courses of hypofractionated RT (45 Gy in 1...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0306-6
更新日期:2011-04-01 00:00:00
abstract::Tripartite motif (TRIM) proteins are involved in tumorigenesis. Here, we examined the expression, biological function, and clinical significance of tripartite motif containing 28 (TRIM28) in glioma, a locally aggressive brain tumor. First, TRIM28 expression was significantly higher in glioma (n = 138) than in non-glio...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-015-1897-8
更新日期:2016-01-01 00:00:00
abstract:PURPOSE:Ferumoxtran-10 belongs to the Ultra Small Particles of Iron Oxide (USPIO) class of contrast agents and induces delayed tumor enhancement in brain tumors, reflecting the trapping of iron oxide particles by the macrophages and activated microglia. The aim of the study was to compare Ferumoxtran-10 contrast enhanc...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-006-9260-8
更新日期:2007-06-01 00:00:00
abstract::Gemistocytic astrocytoma still continues to be enigmatic; both in terms of definition and prognostic implications. The major issue of contention has been the clinical relevance of this pathological entity. The currently accepted definition of gemistocytic astrocytoma requires 20% or more gemistocytes, and considers th...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/s11060-005-4897-2
更新日期:2006-01-01 00:00:00
abstract::Cell differentiation agent-2 (CDA-2) is an extraction from healthy human urine consisting of primary organic acids and peptides, and it has been demonstrated to inhibit growth and induce differentiation in glioma and other cell lines. But the mechanism of CDA-2 remains unclear. In this study, we demonstrated that CDA-...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-012-0961-x
更新日期:2012-11-01 00:00:00
abstract:PURPOSE:Under-enrollment in clinical trials significantly limits valid analyses of clinical interventions and generalizability of findings. Often it results in premature study termination, with estimates of 22% to 50% of clinical trials terminated due to poor accrual. Currently, there are limited reports addressing the...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-020-03503-x
更新日期:2020-05-01 00:00:00
abstract::The aim of this study was to test by means of a voxel-based approach the hypothesis that there is a different spatial distribution of brain metastases (BM) and white matter hyperintensities (WMH) and that the presence of WMH affects the location of BM in lung and non-lung cancer patients. Two-hundred consecutive cance...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-014-1554-7
更新日期:2014-11-01 00:00:00
abstract::High expression of ERBB2 has been reported in medulloblastoma and ependymoma; EGFR is amplified and over-expressed in brainstem glioma suggesting these proteins as potential therapeutic targets. We conducted a molecular biology (MB) and phase II study to estimate inhibition of tumor ERBB signaling and sustained respon...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s11060-013-1166-7
更新日期:2013-09-01 00:00:00
abstract::Two patients with metastasis from lung carcinoma of the midbrain are presented. The computerized tomographic (CT) findings mimicked a primary pineal tumor, but autopsy confirmed a metastatic nodule in the midbrain in both cases. The rational approach to posterior third ventricular tumors seen on CT in adulthood is dis...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00165161
更新日期:1984-01-01 00:00:00
abstract::Assessing central nervous system (CNS) involvement in patients with lymphoma or carcinoma is important in determining therapy and prognosis. Progranulin (PGRN) is a secreted glycosylated protein with roles in cancer growth and survival; it is highly expressed in aggressive cancer cell lines and specimens from many can...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-017-2742-z
更新日期:2018-05-01 00:00:00
abstract::Recurrent gliomas are most often treated by chemotherapy. However, these tumors typically acquire resistance to most drugs administered, and patients will usually die of recurrent tumor. Factors which may play a role include overexpression of putative multidrug resistance genes, such as the multidrug resistance gene 1...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00182138
更新日期:1996-08-01 00:00:00
abstract::NeuroCogFX is a short yet comprehensive computer-based neuropsychological battery of tests developed to investigate neurological patients for cognitive dysfunction after potentially neurotoxic therapy. NeuroCogFX had been standardized in a group of 242 healthy controls (Fliessbach et al., Fortschr Neurol Psychiatr 74:...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0194-9
更新日期:2010-12-01 00:00:00
abstract::There is a need for better predictors for short survival in patients with brain metastases undergoing open surgery. The graded prognostic assessment (GPA) has recently been developed to predict survival in patients with brain metastases. We explored the prognostic capabilities of GPA in a consecutive neurosurgical pop...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0623-4
更新日期:2011-12-01 00:00:00
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 w...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0530-8
更新日期:2011-09-01 00:00:00
abstract::Although 1p19q codeleted gliomas are the most favorable molecular subgroup of lower-grade gliomas, there are cases with early recurrence or short survival. The objective of this study was to elucidate molecular-genetic and clinicopathological prognostic factors in patients with gliomas showing total 1p19q loss. The st...
journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2344-1
更新日期:2017-03-01 00:00:00