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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Effects of JTE-522, a specific inhibitor of cyclooxygenase-2, on the recurrence of allergic inflammation in rats.

JTE-522, 4-(4-cyclohexyl-2-methyloxazol-5-yl)-2-fluorobenzenesulfonamide , is a selective inhibitor of cyclooxygenase-2 at the enzyme level (IC50 is 6.4 x 10(-7) M for sheep cyclooxygenase-2, but it does not inhibit sheep cyclooxygenase-1 at concentrations up to 10(-4) M). In rat peritoneal macrophages in culture, it markedly inhibited cyclooxygenase-2-dependent prostaglandin E2 production and weakly inhibited cyclooxygenase-1-dependent prostaglandin E2 production, as did the selective cyclooxygenase-2 inhibitor NS-398 ([N-2(cyclohexyloxy-4-nitrophenyl)]-methanesulfonamide). In addition, the anti-inflammatory activity of JTE-522 was evaluated, using a model of recurrent air pouch-type allergic inflammation in rats. JTE-522, injected into the pouch just after a second antigen challenge, suppressed the accumulation of pouch fluid, the infiltration of leukocytes and the prostaglandin E2 content in the pouch fluid, as did NS-398 and indomethacin. These findings indicated that JTE-522 is a selective cyclooxygenase-2 inhibitor in cell culture systems and that the suppression by JTE-522 of the recurrence of allergic inflammation is due to the inhibition of cyclooxygenase-2.[1]

References

  1. Effects of JTE-522, a specific inhibitor of cyclooxygenase-2, on the recurrence of allergic inflammation in rats. Niki, H., Yamada, M., Yamaki, K., Mue, S., Ohuchi, K. Eur. J. Pharmacol. (1998) [Pubmed]
 
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