phosphoglucose isomerase/hypoxia

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Regulation of phosphoglucose isomerase/autocrine motility factor expression by hypoxia.

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Phosphoglucose isomerase (PGI; EC 5.3.1.9) is a housekeeping cytosolic enzyme of the sugar metabolism pathways that plays a key role in glycolysis and gluconeogenesis. PGI is a multifunctional dimeric protein that extracellularly acts as a cytokine with properties that include autocrine motility

Hypoxia-inducible factor-1 confers resistance to the glycolytic inhibitor 2-deoxy-D-glucose.

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Hypoxic regions within solid tumors harbor cells that are resistant to standard chemotherapy and radiotherapy. Because oxygen is required to produce ATP by oxidative phosphorylation, under hypoxia, cells rely more on glycolysis to generate ATP and are thereby sensitive to 2-deoxy-d-glucose (2-DG),

Autocrine motility factor signaling enhances pancreatic cancer metastasis.

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OBJECTIVE Autocrine motility factor (AMF)/phosphoglucose isomerase (PGI) is a ubiquitous cytosolic enzyme that plays a key role in glycolysis. AMF/PGI is also a multifunctional protein that acts in the extracellular milieu as a potent mitogen/cytokine. Increased expression of AMF/PGI and its

Effect of oxygen and glucose availability on the glycolytic rate in neuroblastoma cells under different conditions of culture.

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Neuroblastoma cells, cultivated on plastic dishes, in presence of 15 mM glucose resist very well to hypoxia. Cells incubated on plastic dishes, if left unshaken, showed a Pasteur effect at an oxygen concentration below 10%. Oxygen diffusion was the limiting factor in these plastic dishes since

Alleles in metabolic and oxygen-sensing genes are associated with antagonistic pleiotropic effects on life history traits and population fitness in an ecological model insect

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Genes with opposing effects on fitness at different life stages are the mechanistic basis for evolutionary theories of aging and life history. Examples come from studies of mutations in model organisms, but there is little knowledge of genetic bases of life history tradeoffs in natural populations.

An approach to the hypoxic and oxidative stress responses in Kluyveromyces lactis by analysis of mRNA levels.

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Genome duplication, after the divergence of Saccharomyces cerevisiae from Kluyveromyces lactis along evolution, has been proposed as a mechanism of yeast evolution from strict aerobics, such as Candida albicans, to facultatives/fermentatives, such as S. cerevisiae. This feature, together with the

Studies with glycolysis-deficient cells suggest that production of lactic acid is not the only cause of tumor acidity.

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Solid tumors have been observed to develop an acidic extracellular environment, which is believed to occur as a result of lactic acid accumulation produced during aerobic and anaerobic glycolysis. Experiments using glycolysis-deficient ras-transfected Chinese hamster lung fibroblasts have been

pHi, aerobic glycolysis and vascular endothelial growth factor in tumour growth.

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Signalling via growth factors, oncogenes and environmental stresses such as hypoxia, promotes the up-regulation of glycolysis, intracellular pH (pHi) and vascular endothelial growth factor (VEGF) via cooperative mechanisms. Somatic cell genetics was applied to a fibroblastic cell line (CCOL39) to

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