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13 resultat
Pharmacological characterization of 1-(5-chloro-6-(trifluoromethoxy)-1H-benzoimidazol-2-yl)-1H-pyrazole-4-carboxylic acid (JNJ-42041935), a potent and selective hypoxia-inducible factor prolyl hydroxylase inhibitor.
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The hypoxia-inducible factor (HIF) prolyl hydroxylase (PHD) enzymes represent novel targets for the treatment of anemia, ulcerative colitis, and ischemic and metabolic disease inter alia. We have identified a novel small-molecule inhibitor of PHD,
N-benzyl-5-phenyl-1H-pyrazole-3-carboxamide promotes vascular endothelial cell angiogenesis and migration in the absence of serum and FGF-2.
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OBJECTIVE
To investigate the effect of N-benzyl-5-phenyl-1H-pyrazole-3-carboxamide (BPC) on angiogenesis in human umbilical vein endothelial cells (HUVECs).
METHODS
Capillary-like tube formation on matrigel and cell migration analyses were performed in the absence of serum and fibroblast growth
Inhibition of hypoxia-induced gene transcription by substituted pyrazolyl oxadiazoles: initial lead generation and structure-activity relationships.
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The transcription factors hypoxia-inducible factor-1 and -2 (HIF-1 and HIF-2) orchestrate a multitude of processes that allow tumor cells to survive under conditions of low oxygen and nutrients, and that lead to resistance to some apoptotic pathways and facilitate invasion and metastasis. Therefore,
Hypoxia-selective antitumor agents. 16. Nitroarylmethyl quaternary salts as bioreductive prodrugs of the alkylating agent mechlorethamine.
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Nitrobenzyl quaternary salts of nitrogen mustards have been previously reported as hypoxia-selective cytotoxins. In this paper we describe the synthesis and evaluation of a series of heterocyclic analogues, including pyrrole, imidazole, thiophene, and pyrazole examples, chosen to cover a range of
Effect of hypoxia in mice mesenteric arteries surrounded by adipose tissue.
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OBJECTIVE
To investigate the influence of hypoxia on the vasoactive effect of peri-vascular white adipose tissue.
METHODS
Isometric tension recordings were performed on mesenteric arteries from Swiss male mice with or without adherent adipose tissue.
RESULTS
Hypoxia (bubbling with 95% N(2), 5%
Synthesis and evaluation of the HIF-1α inhibitory activity of 3(5)-substituted-4-(quinolin-4-yl)- and 4-(2-phenylpyridin-4-yl)pyrazoles as inhibitors of ALK5.
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The transcription factor hypoxia-inducible factor-1α (HIF-1α) plays an important role in apoptosis, metastasis, and proliferation and is recognized as an important potential therapeutic target for cancer. Six series of 3(5)-(6-methylpyridin-2-yl)-4-(quinolin-4-yl)pyrazoles (11a-d, 12a-d, and 18a-d)
Beyond Traditional Structure-Based Drug Design: The Role of Iron Complexation, Strain, and Water in the Binding of Inhibitors for Hypoxia-Inducible Factor Prolyl Hydroxylase 2.
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A combination of structure-based drug design and medicinal chemistry efforts led us from benzimidazole-2-carboxamide with modestly active hypoxia-inducible factor prolyl hydroxylase 2 inhibition to certain benzimidazole-2-pyrazole carboxylic acids that were more potent as well as orally efficacious
Benzimidazole-2-pyrazole HIF Prolyl 4-Hydroxylase Inhibitors as Oral Erythropoietin Secretagogues.
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HIF prolyl 4-hydroxylases (PHD) are a family of enzymes that mediate key physiological responses to hypoxia by modulating the levels of hypoxia inducible factor 1-α (HIF1α). Certain benzimidazole-2-pyrazole carboxylates were discovered to be PHD2 inhibitors using ligand- and structure-based methods
A citrus abscission agent induces anoxia- and senescence-related gene expression in Arabidopsis.
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The mechanisms of negative effects of 5-chloro-3-methyl-4-nitro-1H-pyrazole (CMNP), a pyrazole-derived plant growth regulator used as a citrus abscission agent, were explored in Arabidopsis by integrating transcriptomic, physiological, and ultrastructural analyses. CMNP promoted starch degradation
Enhancement of reductive metabolism of p-nitrobenzoate and nitrazepam in isolated perfused rat liver by ethanol.
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Reductive metabolism of p-nitrobenzoate (2 mM) was studied in the isolated perfused rat liver, after acute ethanol dosing, with use of a hemoglobin-free perfusion medium. Formation of reduced metabolites under control conditions (0.3 mumol per g of liver per hr) was enhanced fivefold (1.4
The involvement of cytochrome P4502E1 in 2-bromoethanol-induced hepatocyte cytotoxicity.
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The cytotoxicity of 2-bromoethanol towards hepatocytes isolated from rats was concentration-dependent (EC(50)100 mu M, 2 hr). Bromoacetaldehyde was more toxic (EC(50)60 mu M, 2 hr) and bromoacetic acid was less toxic (EC(50)150 mu M, 2 hr). Glutathione (GSH) depletion occurred before cytotoxicity
The design, synthesis, and biological evaluation of novel YC-1 derivatives as potent anti-hepatic fibrosis agents.
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1-Benzyl-3-(substituted aryl)-5-methylfuro[3,2-c]pyrazole (YC-1) is a well-known synthetic compound with various satisfactory pharmacological activities, such as the activation of soluble guanylate cyclase (sGC) and the inhibition of hypoxia-induced factor-1α (HIF-1α). Recently, YC-1 has been
Cannabinoids and neuroprotection in global and focal cerebral ischemia and in neuronal cultures.
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Marijuana and related drugs (cannabinoids) have been proposed as treatments for a widening spectrum of medical disorders. R(+)-[2, 3-dihydro-5-methyl-3-[(morpholinyl)methyl]pyrrolo[1,2,3-de]-1, 4-benzoxazin-yl]-(1-naphthalenyl)methanone mesylate (R(+)-WIN 55212-2), a synthetic cannabinoid agonist,
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