Differential Effects of Oxytocin Receptor Antagonists, Atosiban and Nolasiban, on Oxytocin Receptor–Mediated Signaling in Human Amnion and Myometrium
作者:Sung Hye Kim、Oliver Pohl、Andre Chollet、Jean-Pierre Gotteland、Adam D. J. Fairhurst、Phillip R. Bennett、Vasso Terzidou
DOI:10.1124/mol.116.106013
日期:2017.4
roles of oxytocin (OT) is in inducing uterine contractions and labor. Apart from inducing contractions, our recent studies showed that OT can also activate proinflammatory pathways in both human myometrial and amnion cells, which suggests that the proinflammatory role of OT should be taken into account when developing tocolytics targeting the OT/oxytocin receptor (OTR) system. The OTR antagonist, atosiban
催产素(OT)最确定的作用之一是引起子宫收缩和分娩。除了诱导收缩,我们最近的研究表明OT还可以激活人子宫肌层和羊膜细胞中的促炎途径,这表明在开发靶向OT /催产素受体(OTR)系统的溶菌剂时应考虑OT的促炎作用。 。OTR拮抗剂阿托西班目前在治疗上用于治疗早产。我们以前的研究表明,阿托西班不能抑制OT对人羊膜的促炎作用。阿托西班单独激活核因子-κB(NF-κB)和有丝分裂原激活的蛋白激酶,从而上调下游prolabor基因。与我们对阿托西班的发现相反,口服口服OTR拮抗剂Nolasiban的存在,降低了OT对子宫肌层细胞和羊膜细胞中NF-κB和p38激酶激活的影响。与这些炎症介质的激活一致,OT导致环氧合酶2和磷酸化胞质磷脂酶A2的表达增加,这在前列腺素E2的合成中得到了反映。Nolasiban对NF-κB激活的抑制作用还转化为对下游prolabor基因表达的抑制,例如环氧合酶2,CC基序趋