[18F]BCPP-BF在人类中的生物分布:首次对人体进行正子发射断层扫描研究
Kengo Sato1, Tomoyasu Bunai2, Akinori Oda3
1Global Strategic Challenge Center, Hamamatsu Photonics K.K., Hamamatsu 434-8601, Japan.
Nuclear medicine and biology
|April 18, 2025
概括
[18F]BCPP-BF是一种安全的PET追踪剂,用于评估人类的线粒体功能,具有耐受性良好的辐射剂量. 它的分布类似于BCPP-EF,但具有不同的器官特异性动力学,以改善临床评估.
科学领域:
- 核医学就是核医学.
- 放射化学 放射化学是指辐射化学.
- 医疗成像医学成像
背景情况:
- 线粒体功能障碍与各种疾病有关.
- [F]BCPP-BF和[F]BCPP-EF是定子发射断层扫描 (PET) 探针,针对线粒体复合体I (MC-I).
- 虽然BCPP-EF已经在临床上进行了研究,但BCPP-BF尚未在人类中进行评估.
研究的目的:
- 首次评估BCPP-BF在人类中的安全性和辐射剂量测量.
- 为了比较同一个参与者的[18F]BCPP-BF和[18F]BCPP-EF的全身分布和动力学.
- 评估这些探针在评估人类线粒体功能方面的潜力.
主要方法:
- 十名健康参与者在不同的场合用[18F]BCPP-BF和[18F]BCPP-EF进行全身PET/CT扫描.
- 对大脑和外围器官定义了感兴趣的体积 (VOI),以分析探头分布和动力学.
- 用OLINDA/EXM软件计算器官特异性等效剂量和全身有效剂量.
主要成果:
- [18F]BCPP-BF证明了耐受性良好的有效辐射剂量 (16.3 ± 2.3 μSv/MBq),其中小肠中器官剂量最高.
- 没有发现任何重大安全问题.
- [18F]BCPP-BF在脏,胰腺和心脏中显示出高吸收率,类似于动物研究. 这两种标记剂的分布相似,但在器官特异性动力学上有所不同,与BCPP-EF相比,BCPP-BF表现出较高的脏/胰腺吸收和较低的脑/肝吸收.
结论:
- [18F]BCPP-BF是安全的,并且由于其低毒性和辐射剂量,适合临床使用.
- [18F]BCPP-BF和[18F]BCPP-EF显示了可比的全身分布,但不同的器官动力学.
- 这些探头的差异动力学允许更精确地评估人类线粒体功能.
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