BW 245C was investigated for the affinities potencies, and intrinsic activities in comparison with other natural and synthetic prostanoids using endogenous receptors. The rank order of compound affinities at the DP receptor was SQ27986 (K(i) = 10 +/- 2 nM) > RS93520 = ZK110841 = BW245C (K(i) = 23-26 nM) > ZK118182 (K(i) = 50 +/- 9 nM) > PGD(2) (K(i) = 80 +/- 5 nM). DP receptor agonists produced cAMP in embryonic bovine tracheal fibroblasts with different potencies (EC(50) values in nM): ZK118182 (18 +/- 6), RS93520 (28 +/- 6), SQ27986 (29 +/- 7), ZK110841 (31 +/- 7), BW245C (53 +/- 16), and PGD(2) (98 +/- 10). BW245C was more efficacious and RS93520 was less efficacious.
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15-Deoxy-Delta(12,14)-prostaglandin-J(2) (15d-PGJ(2)) is a cyclopentenone prostaglandin regarded as antiinflammatory mediator, which can act through peroxisome proliferator-activated receptor-gamma (PPARgamma) or through G protein-coupled surface receptors. It has been demonstrated that 15d-PGJ(2) potently increases the generation of interleukin-8 (IL-8) in human microvascular
The Journal of pharmacology and experimental therapeutics, 293(2), 321-328 (2000-04-25)
The prostanoid receptor-subtype binding affinities, selectivities, potencies, and intrinsic activities of four natural prostanoids and six synthetic DP class prostanoids were determined using binding and functional assays with endogenous receptors. SQ27986 exhibited the highest affinity for the human platelet DP
Journal of neurochemistry, 92(3), 477-486 (2005-01-22)
Cyclo-oxygenases (COXs) catalyze the first committed step in the synthesis of the prostaglandins PGE(2), PGD(2), PGF(2alpha), PGI(2) and thomboxane A(2). Expression and enzymatic activity of COX-2, the inducible isoform of COX, are observed in several neurological diseases and result in
British journal of pharmacology, 143(2), 292-302 (2004-08-25)
Prostacyclin plays a central role within the vasculature. We have previously established that the prostacyclin receptor (IP) undergoes isoprenylation, a lipid modification obligate for its function. The aim of the current study was to investigate the effect of the hydroxy
Induction of cyclooxygenase-2 (COX-2) with production of prostaglandins occurs in a wide spectrum of acute and chronic neurodegenerative diseases and is associated with neuronal death. Inhibition of the COX-2 pathway and downstream production of prostaglandins protect neurons in rodent models
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