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Surface coil 13C nuclear magnetic resonance (NMR) spectroscopy was used to investigate the in vivo carbohydrate metabolism of rat C6 gliomas during and after infusion with [1-13C] glucose. In vivo 1H-decoupled 13C NMR spectra of the glioma following infusion with [1-13C]glucose revealed the direct
The human [Glu1]-plasminogen carbohydrate isozymes, plasminogen type I (Pg 1) and plasminogen type II (Pg 2), were separated by chromatography and studied in cell binding experiments at 4 degrees C with primary cultures of rat hepatocytes and rat C6 glioma cells. In both cell systems, Pg 1 and Pg 2
Observational studies that investigated the association between adherence to low carbohydrate diet and odds of glioma are sparse. This is particularly relevant in developing countries where dietary carbohydrate intake is very high.This study was, therefore, BACKGROUND
A high-fat, low-carbohydrate diet, often referred to as a ketogenic diet (KD), has been suggested to reduce frequency and severity of chronic pediatric and adult seizures. A hypoglycemic state, perpetuated by administration of a KD, has been hypothesized as a potential aid to the current
Three murine monoclonal antibodies, designated GA-17, GB-4, and GC-3, were prepared by the hybridization of murine myeloma cells (NS-1) and spleen cells of BALB/c mice immunized with the crude membrane fraction of cultured human gliosarcoma cells (GI-1). Two of them (GA-17 and GB-4) reacted
The presence of epidermal growth factor receptor (EGF-R) and blood group A antigen was studied immunohistochemically in a series of 110 malignant gliomas using monoclonal antibodies. Fifty-seven percent of the tumours strongly expressed EGF-R on the malignant cells. Although blood group A antigen is
The effect of several inhibitors of oligosaccharide-processing on the high-affinity transport of D-aspartate was investigated in C6 glioma cells. Swainsonine, an inhibitor of mannosidase II, had no effect on the uptake of the amino acid. Castanospermine (100 micrograms/ml) and 1-deoxynojirimycin (1
Culture medium conditioned over C6 glioma cells (GCM) contains factors which induce neurite outgrowth from clonal rat pheochromocytoma (PC12) cells. The effects of GCM on the cell-substratum adhesion of PC12 cells, which is an early event required for the neurite outgrowth, were investigated. The
Malignant gliomas are very aggressive tumors, highly angiogenic and invading heterogeneously the surrounding brain parenchyma, making their resection very difficult. To overcome the limits of current diagnostic imaging techniques used for gliomas, we proposed using FTIR imaging, with a spatial
Polysialic acid (polySia) is an important carbohydrate bio-polymer that is commonly over-expressed on tumours of neuroendocrine origin and plays a key role in tumour progression. polySia exclusively decorates the neural cell adhesion molecule (NCAM) on tumour cell membranes, modulating cell-cell
The lectin pathway is a novel pathway for activation of the complement cascade, which is initiated by the binding of mannose-binding protein (MBP) to its carbohydrate ligands. We investigated whether the complement system was activated in vitro by glioma cells through this pathway to the C3 level.
The overall survival for patients with primary glioblastoma is very poor. Glioblastoma contains a subpopulation of glioma stem cells (GSC) that are responsible for tumour initiation, treatment resistance and recurrence. PPARα is a transcription factor involved in the control of lipid, carbohydrate
Chemotaxis is an important step in monocyte recruitment in inflammation, wound healing, and tumor growth. We reported previously that monocyte chemotactic activity secreted by malignant cells and normal smooth muscle cells is associated with a protein or family of proteins that are related to the
The ability of both primary astrocytes from rat cerebrum and a rat C6 glioma cell line to take up lysosomal enzymes by receptor-mediated endocytosis was compared. The beta-glucuronidase secreted by 3T3 fibroblasts was purified to homogeneity by antibody affinity chromatography, iodinated and used as