一种用于人类ACTH和GH分泌 pituitary腺瘤的新型体静止素受体连接体
Daniela Regazzo1, Serena Avallone1,2, Cliona P MacSweeney3
1Endocrinology Unit, University Hospital of Padova, Padua 35143.
European journal of endocrinology
|December 20, 2023
概括
一种新的体静止素受体连接体,HTL0030310,有效地降低了垂体腺瘤中的激素分泌. 这为库辛病和壮症提供了潜在的新疗法.
科学领域:
- 内分泌学 在内分泌学.
- 分子药理学分子药理学
- 在瘤学瘤学.
背景情况:
- 索马托斯塔丁受体连接体是治疗ACTH和GH分泌的垂体腺瘤的关键.
- 目前的治疗方法有效性有限 (30-50%),使许多患有库辛氏病或壮病的患者没有反应.
- HTL0030310是一种新型连接体,具有独特的受体配置文件,对体静止素受体亚型5比亚型2具有选择性.
研究的目的:
- 评估HTL0030310在人类ACTH和GH分泌的垂体腺瘤中对激素分泌的体外影响.
- 为了评估HTL0030310的疗效,与沙利提德相比.
主要方法:
- 使用来自3种ACTH和5种GH分泌的垂体腺瘤的初级培养.
- 细胞被单独用HTL0030310 (1,10,100nM) 或用CRH/GHRH治疗,并与表胺 (10nM) 进行对照.
- 测量了ACTH,GH,POMC分泌和SSTRs/GH/POMC表达的情况.
主要成果:
- 在2种分泌ACTH的腺瘤中,HTL0030310降低了基底ACTH/POMC高达50%.
- 在所有3种ACTH分泌腺瘤中,它使CRH刺激的ACTH/POMC减弱了20-70%.
- HTL0030310在4个GH分泌腺瘤中减少了自发GH分泌,并在2个标本中在GHRH刺激期间减少了GH分泌.
结论:
- HTL0030310,是一种体静止素受体5-偏好的连接体,在垂体腺瘤中对激素分泌有抑制作用.
- 这些发现表明,HTL0030310是库辛病和巨症的有希望的新疗法选择.
- 对这种新型的体静止素配体进行进一步的研究是有必要的.
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