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Glioblastoma
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1. IQGAP1 protein specifies amplifying cancer cells in glioblastoma multiforme.
Match Strength: 9.199

The accurate identification and thorough characterization of tumorigenic cells in glioblastomas are essential to enhance our understanding of their malignant behavior and for the design of strategies that target this important cell population. We report here that, in rat brain, the scaffolding protein IQGAP1 is a marker of brain nestin+ amplifying neural progenitor cells. In a rat model of glioma, IQGAP1 also characterizes a subpopulation of nestin+ amplifying tumor cells in glioblastoma-like tumors but not in tumors with oligodendroglioma features. We next confirmed that IQGAP1 represents a ... Read More »
» Published in Cancer Res. 2006 Sep 15;66(18):9074-82.

2. Suppression of survivin expression in glioblastoma cells by the Ras inhibitor farnesylthiosalicylic acid promotes caspase-dependent apoptosis.
Match Strength: 7.327

The Ras inhibitor farnesylthiosalicylic acid (FTS) has been shown to induce apoptosis in glioblastoma multiforme, but its mechanism of action was unknown. We show that FTS or dominant-negative Ras, by deregulating extracellular signal-regulated kinase and Akt signaling, decreases survivin gene transcripts in U87 glioblastoma multiforme, leading to disappearance of survivin protein and cell death. FTS affected both Ras-controlled regulators of survivin transcription and Ras-regulated survival signals. Thus, Ras inhibition by FTS resulted in release of the survivin "brake" on apoptosis and in ... Read More »
» Published in Mol Cancer Ther. 2006 Sep;5(9):2337-47.

3. Inhibition of tumor cell-induced platelet aggregation using a novel anti-podoplanin antibody reacting with its platelet-aggregation-stimulating domain.
Match Strength: 7.184

The mucin-type sialoglycoprotein, podoplanin (aggrus), is a platelet-aggregating factor on cancer cells. We previously described up-regulated expression of podoplanin in malignant astrocytic tumors including glioblastoma. Its expression was associated with tumor malignancy. In the present study, we investigated podoplanin expression and platelet-aggregating activities of glioblastoma cell lines. First, we established a highly reactive anti-podoplanin antibody, NZ-1, which inhibits podoplanin-induced platelet aggregation completely. Of 15 glioblastoma cell lines, LN319 highly expressed ... Read More »
» Published in Biochem Biophys Res Commun. 2006 Nov 3;349(4):1301-7. Epub 2006 Sep 7.

4. Influence of surfactants, polymer and doxorubicin loading on the anti-tumour effect of poly(butyl cyanoacrylate) nanoparticles in a rat glioma model.
Match Strength: 5.484

Poly(n-butyl cyanoacrylate) nanoparticles coated with polysorbate-80 can enable the transport of bound drugs across the blood-brain barrier (BBB) after i.v. injection. In the present study the influence of different formulation parameters on the anti-tumoural effects of doxorubicin nanoparticles against glioblastoma 101/8 was investigated. The manufacturing parameters of poly(alkyl cyanoacrylate) doxorubicin-loaded nanoparticles were optimized concerning drug loading. The nanoparticles were coated with different surfactants and injected intravenously on days 2, 5 and 8 after intra-cranial ... Read More »
» Published in J Microencapsul. 2006 Aug;23(5):582-92.

5. Phase II trial of lomustine plus temozolomide chemotherapy in addition to radiotherapy in newly diagnosed glioblastoma: UKT-03.
Match Strength: 4.419

PURPOSE: To evaluate toxicity and efficacy of the combination of lomustine, temozolomide (TMZ) and involved-field radiotherapy in patients with newly diagnosed glioblastoma (GBM). PATIENTS AND METHODS: Thirty-one adult patients (median Karnofsky performance score 90; median age, 51 years) accrued in two centers received involved-field radiotherapy (60 Gy in 2-Gy fractions) and chemotherapy with lomustine 100 mg/m2 (day 1) and TMZ 100 mg/m2/d (days 2 to 6) with individual dose adjustments according to hematologic toxicity. RESULTS: A median of five courses (range, one to six courses) were ... Read More »
» Published in J Clin Oncol. 2006 Sep 20;24(27):4412-7.

6. Physiologic characterisation of glioblastoma multiforme using MRI-based hypoxia mapping, chemical shift imaging, perfusion and diffusion maps.
Match Strength: 4.157

PURPOSE: A multiparametric, physiologic MRI approach was considered to more completely characterise biopsy-confirmed glioblastoma multiforme (GBM). Chemical shift imaging (CSI) supplied biochemical information in metabolite ratios, while perfusion images provided data on presumed vascularity from regional cerebral blood volume (rCBV) and permeability maps. Diffusion-weighted images were reduced to apparent diffusion coefficient (ADC) maps to evaluate cellularity, and blood oxygen level-dependent imaging was used to create maps of putative hypoxic regions. METHODS: Six post-treatment GBM ... Read More »
» Published in J Clin Neurosci. 2006 Oct;13(8):811-7.

7. Recent advances in immunotherapy for human glioma.
Match Strength: 2.893

PURPOSE OF REVIEW: The present review focuses on recent progress in tumour immunology and immunotherapeutic trials in malignant gliomas. RECENT FINDINGS: Major advances have been made in the understanding of antitumour immunity in patients with glioma. Patients with glioblastoma can spontaneously develop antitumour activity with activated CD8 T cells. Infiltration of myeloid suppressor cells into tumours and increased regulatory T-cell fraction appear to play a critical role in tumour tolerance, however. T-regulatory removal suppresses CD4 T-cell proliferative defects and can induce tumour ... Read More »
» Published in Curr Opin Oncol. 2006 Nov;18(6):631-6.

8. Surgical resection of tumors located in subcortex of language area.
Match Strength: 2.652

Object. Although functional mapping facilitates the planning of surgery in and around eloquent areas, the resection of tumors adjacent to language areas remains challenging. In this report, we took notice that the language areas (Broca's and Wernicke's) present at the perisylvian fissure. We posit that if there is non-essential language area on the inner surface of the Sylvian fissure, safe tumor resection may be possible even if the tumor is located under the language cortex. Methods. The study population consisted of 5 patients with intrinsic brain tumors (frontal glioma, n = 3; temporal ... Read More »
» Published in Acta Neurochir (Wien). 2007 Feb;149(2):123-30. Epub 2006 Sep 29.

9. Phosphoprotein enriched in astrocytes-15 kDa expression inhibits astrocyte migration by a protein kinase C delta-dependent mechanism.
Match Strength: 2.589

Phosphoprotein enriched in astrocytes-15 kDa (PEA-15), a phosphoprotein enriched in astrocytes, inhibits both apoptosis and proliferation in normal and cancerous cells. Here, analysis of PEA-15 expression in glioblastoma organotypic cultures revealed low levels of PEA-15 in tumor cells migrating away from the explants, regardless of the expression levels in the originating explants. Because glioblastomas are highly invasive primary brain tumors that can originate from astrocytes, we explored the involvement of PEA-15 in the control of astrocyte migration. PEA-15-/- astrocytes presented an ... Read More »
» Published in Mol Biol Cell. 2006 Dec;17(12):5141-52. Epub 2006 Sep 20.

10. The natural compound n-butylidenephthalide derived from Angelica sinensis inhibits malignant brain tumor growth in vitro and in vivo.
Match Strength: 2.545

The naturally-occurring compound, n-butylidenephthalide (BP), which is isolated from the chloroform extract of Angelica sinensis (AS-C), has been investigated with respect to the treatment of angina. In this study, we have examined the anti-tumor effects of n-butylidenephthalide on glioblastoma multiforme (GBM) brain tumors both in vitro and in vivo. In vitro, GBM cells were treated with BP, and the effects of proliferation, cell cycle and apoptosis were determined. In vivo, DBTRG-05MG, the human GBM tumor, and RG2, the rat GBM tumor, were injected subcutaneously or intracerebrally with BP. ... Read More »
» Published in J Neurochem. 2006 Nov;99(4):1251-62. Epub 2006 Sep 20.

11. Bispecific antibody pretargeting of tumor neovasculature for improved systemic radiotherapy of solid tumors.
Match Strength: 2.449

PURPOSE: Extra domain B (ED-B) fibronectin is a specific tumor matrix marker for targeting angiogenesis in solid tumors. In this study, the radiotherapeutic potential of the directly radioiodinated divalent anti-ED-B antibody fragment, L19 small immunoprotein (L19-SIP; 75,000 Da), was compared with a pretargeting approach using the bispecific antibody AP39xm679 (bsMAb; 75,000 Da). EXPERIMENTAL DESIGN: The bsMAb was prepared by coupling an anti-ED-B single-chain Fv (AP39) to the Fab' of the murine antibody m679, which binds to the small peptidic hapten histamine-succinyl-glycine (HSG). As an ... Read More »
» Published in Clin Cancer Res. 2006 Sep 15;12(18):5587-95.

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