GIP受体对抗性消除了一些患有巨症的患者矛盾的生长激素分泌
Mette H Jensen1,2, Lærke S Gasbjerg2, Kirsa Skov-Jeppesen2
1Antag Therapeutics Aps, 2200 Copenhagen, Denmark.
The Journal of clinical endocrinology and metabolism
|August 22, 2024
概括
在OGTT期间,壮症患者的矛盾生长激素分泌量通过阻断GIP受体而显著降低. 这表明GIP受体抗剂可能是壮症的治疗标.
科学领域:
- 内分泌学 在内分泌学.
- 分子内分泌学分子内分泌学
- 在瘤学瘤学.
背景情况:
- 大约30%的壮症患者在口服葡萄糖耐受性测试 (OGTT) 中表现出矛盾的生长激素 (GH) 分泌.
- 怀疑内源性依赖葡萄糖的胰岛素型多 (GIP) 是驱动这种矛盾的GH释放的原因.
研究的目的:
- 调查GIP在调解壮症中矛盾的GH分泌中的作用.
- 测试假设GIP受体 (GIPR) 阻塞可以抑制矛盾的GH分泌,特别是在高GIPR表达的体育瘤中.
主要方法:
- 25名未经治疗的壮病患者接受了两次OGTT:一个是安慰剂,一个是GIP受体对抗剂 (GIP(3-30) NH2).
- 在整个测试过程中,监测生长激素水平.
- 在切除的垂体腺瘤中使用免疫组织化学评估GIPR表达.
- 为了机理验证,进行了体外和体外实验.
主要成果:
- 在表现出这种反应的7名患者中,4名患者中,GIP受体阻塞消除了矛盾的GH分泌 (P = .0003).
- 来自响应者的体腺瘤显示出丰富的GIPR表达.
- 在具有或没有矛盾GH分泌的患者之间没有观察到腺瘤大小的显著差异.
结论:
- 制药GIPR阻塞有效地减少了在一小组的壮病患者矛盾的GH分泌.
- 响应者的体腺瘤中丰富的GIPR表达表明GIPR是潜在的治疗标.
- 在体外和体外研究证实了GIP的参与以及对抗剂的疗效.
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