当前位置： SCI文献检索 > EUROPEAN JOURNAL OF PHARMACOLOGY期刊下所有文献 > Wy-48,252 (1,1,1-trifluoro-N-[3-(2-quinolinylmethoxy)phenyl]membrane sulfonamide), an orally active leukotriene antagonist: effects on arachidonic acid metabolism in various inflammatory cells.

Wy-48,252 (1,1,1-trifluoro-N-[3-(2-quinolinylmethoxy)phenyl]membrane sulfonamide), an orally active leukotriene antagonist: effects on arachidonic acid metabolism in various inflammatory cells.

Abstract：

:The LTD4 antagonist, Wy-48,252 (1,1,1-trifluoro-N-[3-(2-quinolinylmethoxy)phenyl]methanesulfonamide), was assessed for its ability to modulate arachidonic acid metabolism in several inflammatory cells. In A23187-stimulated rat neutrophils, Wy-48,252 effectively inhibited the conversion of exogenous [14C]arachidonic acid to radiolabeled 5-hydroxyeicosatetraenoic acid (5-HETE) and thromboxane B2 (TxB2) (IC50 = 2 and 9.1 microM, respectively). Synthesis of immunoreactive leukotriene B4 (LTB4) (IC50 = 4.6 microM) and TxB2 (IC50 = 3.3 microM) from endogenous substrate by these cells in the absence of [14C]arachidonic acid was similarly reduced. Wy-48,252 also reduced leukotriene C4 (LTC4) and PGE2 synthesis by zymosan-activated mouse peritoneal macrophages (IC50 = 4.4 and 4.3 microM, respectively). 5-Lipoxygenase (5-LO) catalyzed reactions in human neutrophils, lung mast cells and basophils activated by various stimuli were dose dependently inhibited by Wy-48,252 while PGD2 synthesis by lung mast cells was inhibited at 100 microM. By contrast, 12-LO, 15-LO, phosphodiesterase activity and histamine release from mast cells and basophils were unaffected by Wy-48,252. These data suggested that the LTD4 antagonist, Wy-48,252, also inhibited the synthesis of eicosanoids, a feature that may contribute to its pharmacological actions in vivo.

journal_name

Eur J Pharmacol

journal_title

European journal of pharmacology

authors

Chang J,Borgeat P,Schleimer RP,Musser JH,Marshall LA,Hand JM

doi

10.1016/0014-2999(88)90462-1

subject

Has Abstract

pub_date

1988-03-22 00:00:00

pages

131-41

issue

1

eissn

0014-2999

issn

1879-0712

pii

0014-2999(88)90462-1

journal_volume

148

pub_type

杂志文章

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