Structure and localization of the rabbit prostaglandin EP3 receptor.

Structure and localization of the rabbit prostaglandin EP3 receptor.
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兔前列腺素 EP3 受体的结构和定位。

DOI:
10.1007/978-1-4615-5325-0_38
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发表时间:
1997
影响因子:
--
通讯作者:
Breyer,MD
Breyer,MD
中科院分区:
医学4区
文献类型:
--
作者:
Breyer,RM;Emeson,RB;Davis,LS;Breyer,MD

文献摘要

相似文献

前列腺素E2(PGE 2)是多种生理反应的有效调节剂,包括炎症(1)、胃酸分泌(2)、血管张力(3)、脂解(4)以及水和离子转运(5)。兔肾代表了一个良好的表征生理模型方面的PGE 2的影响。在肾脏中,PGE 2已被证明可调节肾小球血流动力学(6)以及粗升支(7)和集合管中的水和离子转运。在某些情况下,前列腺素E2的细胞效应似乎是自相矛盾的。在皮质集合管(CCD)中,PGE 2通过增加细胞内cAMP水平刺激水重吸收(8,9),并通过抑制cAMP生成抑制精氨酸-加压素水重吸收(8)。类似地,PGE 2已被证明扩张某些血管床,同时收缩其他血管床(10,11,12)。PGE 2的这些自我对抗作用似乎是由不同类别的PGE 2受体介导的(3)。
Prostaglandin E2(PGE2) is a potent modulator of a wide variety of physiological responses including inflammation (1), gastric acid secretion (2), vascular tone (3), lipolysis (4) and water and ion transport (5). The rabbit kidney represents a well characterized physiological model with respect to PGE2effects. In the kidney, PGE2 has been shown to modulate glomerular hemodynamics (6) as well as water and ion transport in the thick ascending limb (7) and collecting duct. Under some circumstances the cellular effects of PGE2appear to be self-opposing. In the cortical collecting duct (CCD), PGE2causes stimulation of water reabsorption via increasing the intracellular level of cAMP (8,9) and suppression of arginine-vasopressin water reabsorption by inhibiting cAMP generation (8). Similarly PGE2has been shown to vasodilate certain vascular beds while it constricts other vascular beds (10,11,12). These self-opposing effects of PGE2appear to be mediated by separate classes of PGE2receptors (3).