RT Journal Article SR Electronic T1 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 JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics SP 910 OP 920 DO 10.1124/mol.110.070508 VO 79 IS 6 A1 Barrett, Terrance D. A1 Palomino, Heather L. A1 Brondstetter, Theresa I. A1 Kanelakis, Kimon C. A1 Wu, Xiaodong A1 Haug, Peter V. A1 Yan, Wen A1 Young, Andrew A1 Hua, Hong A1 Hart, Juliet C. A1 Tran, Da-Thao A1 Venkatesan, Hariharan A1 Rosen, Mark D. A1 Peltier, Hillary M. A1 Sepassi, Kia A1 Rizzolio, Michele C. A1 Bembenek, Scott D. A1 Mirzadegan, Tara A1 Rabinowitz, Michael H. A1 Shankley, Nigel P. YR 2011 UL http://molpharm.aspetjournals.org/content/79/6/910.abstract AB 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, 1-(5-chloro-6-(trifluoromethoxy)-1H-benzoimidazol-2-yl)-1H-pyrazole-4-carboxylic acid (JNJ-42041935), through structure-based drug design methods. The pharmacology of JNJ-42041935 was investigated in enzyme, cellular, and whole-animal systems and was compared with other compounds described in the literature as PHD inhibitors. JNJ-42041935, was a potent (pKI = 7.3–7.9), 2-oxoglutarate competitive, reversible, and selective inhibitor of PHD enzymes. In addition, JNJ-42041935 was used to compare the effect of selective inhibition of PHD to intermittent, high doses (50 μg/kg i.p.) of an exogenous erythropoietin receptor agonist in an inflammation-induced anemia model in rats. JNJ-42041935 (100 μmol/kg, once a day for 14 days) was effective in reversing inflammation-induced anemia, whereas erythropoietin had no effect. The results demonstrate that JNJ-42041935 is a new pharmacological tool, which can be used to investigate PHD inhibition and demonstrate that PHD inhibitors offer great promise for the treatment of inflammation-induced anemia.