BACKGROUND Gliomas are a heterogenous group of tumors that show the same histological features but differ in their behavior. Gliomas are characterized by biological aggressiveness and extensive infiltrative growth into surrounding healthy brain tissue. OBJECTIVES In this study we estimated CD44v6 and E-cadherin expression and correlation between CD44v6 and E-cadherin in relation to glioma mal...

Immune-based treatments for central nervous system gliomas have traditionally lagged behind those of more immunogenic tumors such as melanoma. The relative paucity of defined glioma-associated antigens that can be targeted by the immune system may partially account for this situation. Antigens present on melanomas have been extensively characterized, both in humans and in murine preclinical mod...

Temozolomide constitutes current standard of care for adult patients with high-grade gliomas. However, results for pediatric gliomas are rather disappointing. In order to investigate the molecular differences between pediatric and adult gliomas that could affect sensitivity to temozolomide, we studied 23 pediatric non-ependymal, non-pilocytic gliomas in comparison to 59 consecutive adult glioma...

Materials and methods: The charts of 29 patients with low grade gliomas were collected. Only in 19 cases of them an NMR-spectroscopic examination was performed. Due to choline, N-acetylaspartate (NAA) and lipid content the gliomas were classified into astrocytoma WHO II or III or in low or high grade gliomas. After stereotactic biopsy or neurosurgical removal histopathological examination was p...

BACKGROUND AND PURPOSE Glioma angiogenesis and its different hemodynamic features, which can be evaluated by using perfusion CT (PCT) imaging of the brain, have been correlated with the grade and the aggressiveness of gliomas. Our hypothesis was that quantitative estimation of permeability surface area product (PS), cerebral blood volume (CBV), cerebral blood flow (CBF), and mean transit time (...

BACKGROUND Gliomas are the most common neoplasm of the brain. High-grade gliomas often resist treatment even with aggressive surgical resection and adjuvant radiation and chemotherapy. Despite the combined treatment, they frequently recur with the same or higher-grade histology. Genetic instability is commonly associated with inactivation of the normal DNA repair function and tumour suppressor ...

PURPOSE To evaluate the efficacy of fractionated stereotactic radiotherapy (FSRT) performed as reirradiation in 172 patients with recurrent low- and high-grade gliomas. PATIENTS AND METHODS Between 1990 and 2004, 172 patients with recurrent gliomas were treated with FSRT as reirradiation in a single institution. Seventy-one patients suffered from WHO grade 2 gliomas. WHO grade 3 gliomas were ...

Sample Tumor Type C.1 (low/high) C.2 (anapl/non-anapl) C.3 (gliob/non-gliob) C.4 (glios/non-glios) T19 Oligodendroglioma l n ngb ngs T21 Anaplastic mixed glioma l a ngb ngs T24 Anaplastic mixed glioma l a ngb ngs T18 Glioblastoma/Gliosarcoma h n ngb/gb ngs/gs T20 Glioblastoma h n gb ngs T22 Glioblastoma h n gb ngs T23 Glioblastoma h n gb ngs T25 Glioblastoma h n gb ngs T26 Glioblastoma h n gb n...

objective(s): the study objective was to assess the diagnostic performance of positron emission tomography (pet) for gliomas using the novel tracer 18f-fluciclovine (anti-[18f]facbc) and to evaluate the safety of this tracer in patients with clinically suspected gliomas.methods: anti-[18f]facbc was administered to 40 patients with clinically suspected high- or low-grade gliomas, followed by pet...

Extensive genomic and gene expression studies have been performed in gliomas, but the epigenetic alterations that characterize different subtypes of gliomas remain largely unknown. Here, we analyzed the methylation patterns of 807 genes (1536 CpGs) in a series of 33 low-grade gliomas (LGGs), 36 glioblastomas (GBMs), 8 paired initial and recurrent gliomas, and 9 controls. This analysis was perfo...