新型SSTR3激动剂ITF2984在人类非功能性垂体神经内分泌瘤 (NF-PitNET) 细胞中产生抗菌和前菌作用
Genesio Di Muro1,2, Rosa Catalano1, Donatella Treppiedi3
1Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy.
International journal of molecular sciences
|April 13, 2024
概括
ITF2984,一种新型的体静止素受体连接体,有效降低了瘤细胞增殖和增加了人体垂体瘤 (NF-PitNETs) 中的亡. 这种泛-SSTR连接体显示出治疗这些罕见的神经内分泌瘤的前景.
科学领域:
- 内分泌学 在内分泌学.
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 下垂体瘤,特别是非功能性下垂体神经内分泌瘤 (NF-PitNETs),通常表达高水平的体静止素受体3 (SSTR3).
- 针对SSTR2和SSTR5的现有的体静止素受体连接体 (SRL) 由于其SSTR3表达特征,在NF-PitNET中显示出有限的疗效.
研究的目的:
- 为了评估ITF2984的抗增殖和益的作用,一种具有高亲和力对SSTR3的泛SSTR配体,在初级培养的NF-PitNET细胞中.
- 在这些人类瘤样本中表达索马托斯塔丁受体 (SSTR) 概况的特征.
主要方法:
- 来自23个人类瘤的初级NF-PitNET细胞用ITF2984.4进行了治疗.
- 通过对一组样本进行了用octreotide, pasireotide或cabergoline进行比较的治疗.
- 测量了细胞增殖和细胞亡.
- 使用qRT-PCR和西方抹黑分析了SSTR3,SSTR2和SSTR5的表达.
主要成果:
- 在所有测试的NF-PitNET中,ITF2984显著降低了40.8%的细胞增殖 (p < 0.001) 和41.4%的细胞亡 (p < 0.001).
- 相比之下,八丁,沙丁和卡伯戈林仅在一小部分瘤中表现出有效性.
- SSTR3表达水平与对ITF2984.4的抗增殖性或益菌性反应没有相关性.
结论:
- ITF2984在不同NF-PitNET中表现出一致的抗增殖和益的活性,不管SSTR3表达水平如何.
- 这些发现支持ITF2984对NF-PitNETs的潜在治疗应用.
- ITF2984代表了一种有前途的新型治疗药物,用于垂体神经内分泌瘤.
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