17(<i>R</i>),18(<i>S</i>)-Epoxyeicosatetraenoic Acid, a Potent Eicosapentaenoic Acid (EPA) Derived Regulator of Cardiomyocyte Contraction: Structure–Activity Relationships and Stable Analogues
作者:John R. Falck、Gerd Wallukat、Narender Puli、Mohan Goli、Cosima Arnold、Anne Konkel、Michael Rothe、Robert Fischer、Dominik N. Müller、Wolf-Hagen Schunck
DOI:10.1021/jm200132q
日期:2011.6.23
17(R),18(S)-Epoxyeicosatetraenoic acid [17(R),18(S)-EETeTr], a cytochrome P450 epoxygenase metabolite of eicosapentaenoic acid (EPA), exerts negative chronotropic effects and protects neonatal rat cardiomyocytes against Ca2+-overload with EC50 ≈ 1–2 nM. Structure–activity studies revealed that a cis-Δ11,12- or Δ14,15-olefin and a 17(R),18(S)-epoxide are minimal structural elements for antiarrhythmic
17( R ),18( S )-环氧二十碳四烯酸 [17( R ),18( S )-EETeTr] 是二十碳五烯酸 (EPA) 的细胞色素 P450 环氧酶代谢物,具有负变时作用并保护新生大鼠心肌细胞免受 Ca 2侵害+ -过载,EC 50 ≈ 1–2 nM。构效研究表明,顺式-Δ 11,12 - 或 Δ 14,15 -烯烃和 17( R ), 18( S )-环氧化物是抗心律失常活性的最小结构元素,而拮抗剂活性通常与组合相关Δ 14,15 -烯烃和 17( S),18( R )-环氧化物。与天然材料相比,激动剂和拮抗剂类似物在化学和代谢上更加强大,并且有几种有望作为未来临床候选药物开发的模板。