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8 resultados
Furan- and Thiophene-2-Carbonyl Amino Acid Derivatives Activate Hypoxia-Inducible Factor via Inhibition of Factor Inhibiting Hypoxia-Inducible Factor-1.
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Induction of a series of anti-hypoxic proteins protects cells during exposure to hypoxic conditions. Hypoxia-inducible factor-α (HIF-α) is a major transcription factor that orchestrates this protective effect. To activate HIF exogenously, without exposing cells to hypoxic conditions, many
KR-32570, a novel Na+/H+ exchanger-1 inhibitor, attenuates hypoxia-induced cell death through inhibition of intracellular Ca2+ overload and mitochondrial death pathway in H9c2 cells.
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A novel Na+/H+ exchanger-1 (NHE-1) inhibitor [5-(2-methoxy-5-chloro-5-phenyl)furan-2-ylcarbonyl]guanidine (KR-32570) has been previously demonstrated to elicit cardioprotective effect against ischemic injury in rat heart. In the present study, we examined the effects of KR-32570 on cell death
Suppression of Ca2+ oscillations in cultured rat hepatocytes by chemical hypoxia.
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The model of "chemical hypoxia" with KCN plus iodoacetic acid mimics the ATP depletion and reductive stress of hypoxia. Here, we examined the effects of chemical hypoxia on cytosolic free Na+ and Ca2+ in single cultured rat hepatocytes by multiparameter digitized video microscopy and ratio imaging
Small-molecule activation of p53 blocks hypoxia-inducible factor 1alpha and vascular endothelial growth factor expression in vivo and leads to tumor cell apoptosis in normoxia and hypoxia.
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The p53 tumor suppressor protein negatively regulates hypoxia-inducible factor 1alpha (HIF-1alpha). Here, we show that induction of p53 by the small-molecule RITA (reactivation of p53 and induction of tumor cell apoptosis) [2,5-bis(5-hydroxymethyl-2-thienyl) furan] (NSC-652287) inhibits HIF-1alpha
Identification of a novel potent, selective and cell permeable inhibitor of protein kinase CK2 from the NIH/NCI Diversity Set Library.
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The anti-apoptotic protein kinase CK2 increasingly becomes an attractive target in cancer research with great therapeutic potential. Here, we have performed an in vitro screening of the Diversity Set III of the DTP program from the NCI/NIH, comprising 1600 compounds. We have identified
D11-Mediated Inhibition of Protein Kinase CK2 Impairs HIF-1α-Mediated Signaling in Human Glioblastoma Cells.
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Compelling evidence indicates that protein kinase CK2 plays an important role in many steps of cancer initiation and progression, therefore, the development of effective and cell-permeable inhibitors targeting this kinase has become an important objective for the treatment of a variety of cancer
Pharmacological activation of a novel p53-dependent S-phase checkpoint involving CHK-1.
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We have recently shown that induction of the p53 tumour suppressor protein by the small-molecule RITA (reactivation of p53 and induction of tumour cell apoptosis; 2,5-bis(5-hydroxymethyl-2-thienyl)furan) inhibits hypoxia-inducible factor-1α and vascular endothelial growth factor expression in vivo
P2Y2 receptor agonist with enhanced stability protects the heart from ischemic damage in vitro and in vivo.
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Extracellular nucleotides acting via P2 receptors play important roles in cardiovascular physiology/pathophysiology. Pyrimidine nucleotides activate four G protein-coupled P2Y receptors (P2YRs): P2Y2 and P2Y4 (UTP-activated), P2Y6, and P2Y14. Previously, we showed that uridine 5'-triphosphate (UTP)
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