类似药物,F标记的PET标记物向纤维细胞激活蛋白
Muhammet Tanc1, Nicolò Filippi1, Yentl Van Rymenant2
1Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
Journal of medicinal chemistry
|April 24, 2024
概括
研究人员开发了第一个类似于药物的18F标记的纤维细胞激活蛋白抑制剂 (FAPI),用于改善成像. 这个新的FAPI显示了研究纤维化和其他疾病超出瘤学的前景.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 放射化学 放射化学是指辐射化学.
- 分子成像学分子成像学
背景情况:
- 纤维细胞激活蛋白 (FAP) 是组织重塑的关键生物标志物,主要研究在瘤学中.
- 对FAP在其他疾病 (如纤维化) 中的作用越来越感兴趣.
- 当前的FAP准成像剂 (FAPI) 往往具有高分子量和极性特征,可能限制组织透到更密集的组织中.
研究的目的:
- 设计和合成新的"类似药物"的18F标签的FAPI.
- 评估这些新的FAPI在成像疾病超越瘤学的潜力,特别是纤维化.
- 为进一步的临床前和临床研究确定一种化合物.
主要方法:
- 设计和合成具有改善药理动力学特性的新型18F标记的FAPI.
- 在体外评估目标功效.
- 在小鼠模型中的体内生物分布和药理动力学研究.
- 在瘤异种移植中证明了FAP依赖的吸收.
主要成果:
- 成功设计和合成了第一种类似药物18F标记的FAPI.
- 目标强度的表征,生物分布和药理动力学.
- 在小鼠瘤异种移植中证明了FAP依赖的吸收,验证了目标参与.
- 化合物10被确定为一个非常有前途的候选物.
结论:
- 开发的类似于18F-FAPI的药物代表了分子成像技术的重大进展.
- 化合物10在18F-PET成像中表现出有希望的临床前特征.
- 这种新的FAPI类型适合研究纤维性疾病,需要进行临床研究.
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