Pharmacological, Pharmacokinetic, and Primate Analgesic Efficacy Profile of the Novel Bradykinin B<sub>1</sub> Receptor Antagonist ELN441958
作者:Jon E. Hawkinson、Balazs G. Szoke、Albert W. Garofalo、Dennis S. Hom、Hongbing Zhang、Mark Dreyer、Juri Y. Fukuda、Linda Chen、Bhushan Samant、Stellanie Simmonds、Karla P. Zeitz、Angie Wadsworth、Anna Liao、Raymond A. Chavez、Wes Zmolek、Lany Ruslim、Michael P. Bova、Ryan Holcomb、Eduardo R. Butelman、Mei-Chuan Ko、Annika B. Malmberg
DOI:10.1124/jpet.107.120352
日期:2007.8
is highly selective for B(1) over B(2) receptors. Antagonism of agonist-induced calcium responses at B(1) receptors from different species indicated that ELN441958 is selective for primate over rodent B(1) receptors with a rank order potency (K(B), nanomolar) of human (0.12 +/- 0.02) approximately rhesus monkey (0.24 +/- 0.01) > rat (1.5 +/- 0.4) > mouse (14 +/- 4). ELN441958 had good permeability
缓激肽B(1)受体在慢性疼痛和炎症中起着关键作用,尽管依赖物种的效价差异,代谢不稳定和当前药物的低口服暴露阻碍了受体拮抗剂功效的证明。新型苯甲酰胺B(1)受体拮抗剂7-氯-2- [3-(9-吡啶-4-基-3,9-二氮杂螺[5.5]十一烷羰基)苯基] -2的药理学,药代动力学和止痛功效描述了,3-二氢-异吲哚-1-酮(ELN441958)。ELN441958竞争性抑制B(1)激动剂配体[(3)H] desArg(10)-kallidin([[3)H] DAKD)与IMR-90人成纤维细胞膜的高亲和力结合(K(i)= 0.26 +/- 0.02 nM)。ELN441958在IMR-90细胞中有效拮抗DAKD(但不是缓激肽)诱导的钙动员,表明它对B(1)的选择性高于B(2)受体。对来自不同物种的B(1)受体的激动剂诱导的钙反应的拮抗作用表明,ELN441958对灵长类动物具有超过啮齿类动物B(1