64 含的Cu标记循环RGD,用于BNCT和PET成像
Soyeon Kim1, Sajid Mushtaq1,2, Kyo Chul Lee1
1Division of Applied RI, Korea Institute of Radiological & Medical Sciences, 75 Nowon-ro, Nowon-gu, Seoul 01812, Republic of Korea.
ACS medicinal chemistry letters
|March 20, 2024
概括
一种新的注入 (cRGD ((d-BPA) K) 显示出作为中子捕获疗法 (BNCT) 追踪剂的希望. 它的诊断对应物 (DOTA-cRGD(d-BPA) K) 有助于可视化瘤用于向癌症治疗.
科学领域:
- 在瘤学瘤学.
- 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:
- 人们越来越感兴趣的中子捕获疗法 (BNCT) 对于反抗性瘤.
- 需要有效的BNCT追踪剂和针对特定瘤标记物的诊断剂,如αvβ3整合蛋白.
研究的目的:
- 为BNCT开发一种注入的新型周期性Arg-Gly-Asp (RGD) (cRGD(d-BPA) K).
- 创建一个诊断剂 (DOTA-cRGD(d-BPA) K) 用于对表达αvβ3的瘤的正子发射断层扫描 (PET) 成像.
主要方法:
- 合成和放射性标记DOTA-cRGD ((d-BPA) K使用64Cu.
- 在体外稳定性评估.
- 在U87MG瘤模型中的PET成像.
- 注入 (化合物2) 的生物分布研究.
主要成果:
- 对于64Cu-DOTA-cRGD ((d-BPA) K. 的高放射化学产量和纯度.
- 通过PET成像观察到卓越的体外稳定性和显著的瘤吸收.
- 化合物2在U87MG瘤中显示出大量的积,与l-BPA-果糖相比,瘤与背景比率有利.
结论:
- 开发的注入 (化合物2) 是BNCT的一个有前途的追踪剂.
- 诊断剂 (64Cu-1) 显示出用于分子成像和癌症诊断的潜力.
- 这些药物提供了针对性癌症治疗和使用分子成像进行诊断的双重方法.
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