Pharmacological Characterization of a Novel Sulfonylureid-Pyrazole Derivative, SM-19712, a Potent Nonpeptidic Inhibitor of Endothelin Converting Enzyme

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We describe the pharmacological characteristics of SM−19712 {4−chloro−N−[[(4−cyano−3−methyl−1−phenyl−1H−pyrazol−5−yl)amino]carbonyl]benzenesulfonamide, monosodium salt}.SM−19712 inhibited endothelin converting enzyme(ECE)solubilized from rat lung microsomes with an IC<SUB>50</SUB> value of 42 nM and, at 10−100μM, had no effect on other metalloproteases such as neutral endopeptidase 24.11 and angiotensin converting enzyme, showing a high specificity for ECE.In cultured porcine aortic endothelial cells, SM−19712 at 1−100μM concentration−dependently inhibited the endogenous conversion of big endothelin−1(ET−1)to ET−1 with an IC<SUB>50</SUB> value of 31μM.In anesthetized rats, either intravenous(1−30 mg/kg)or oral(10−30 mg/kg)administration of SM−19712 dose−dependently suppressed the pressor responses induced by big ET−1.In acute myocardial infarction of rabbits subjected to coronary occlusion and reperfusion, SM−19712 reduced the infarct size, the increase in serum concentration of ET−1 and the serum activity of creatinine phosphokinase.The present study demonstrates that SM−19712 is a structurally novel, nonpeptide, potent and selective inhibitor of ECE, and SM−19712 is a valuable new tool for elucidating the pathophysiological role of ECE.

収録刊行物

  • The Japanese journal of pharmacology

    The Japanese journal of pharmacology 84(1), 7-15, 2000-09-01

    公益社団法人 日本薬理学会

参考文献:  43件中 1-43件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10008184942
  • NII書誌ID(NCID)
    AA00691188
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00215198
  • NDL 記事登録ID
    5526002
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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