前列腺素 E2(PGE2)可激活四种类前列腺素(EP)受体,即 EP1-4。EP4 是一种 Gs 蛋白偶联受体,通过提高第二信使 cAMP,在骨形成和吸收(1)、癌症(2)和动脉粥样硬化(3)中发挥重要作用。这种化学物质是 PGE2 的 8-aza-9-oxo-15-hydroxy 饱和类似物。相对于 EP1、EP2 和 EP3 受体(Ki 分别为 3,000、2,000 和大于 3,000 nM),它能选择性地与 EP4 受体结合(Ki = 35 nM)(4)。这种化学物质可刺激切除的小鼠卵巢中 cAMP 的形成(5)。
2-(3-hydroxyoctyl)-5-oxo-1-pyrrolidineheptanoic acid (CAS 64054-40-6) 参考文献
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