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一种双玻拉胺酸PET追踪器用于脑瘤诊断

Zhu Li¹, Junyi Chen², Ziren Kong^3,4

¹Key Laboratory of Carcinogenesis and Translational Research, Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing, China.

European journal of nuclear medicine and molecular imaging

|January 9, 2024

概括

这项研究介绍了[18F]BBPA,这是用于脑瘤成像的新型PET追踪器. [18F]BBPA显示高瘤吸收率,可能有助于诊断大脑瘤,并促进子中子捕获疗法 (BNCT).

科学领域:

生物医学成像学生物医学成像学
放射化学放射化学是指辐射化学.
在瘤学瘤学.

背景情况:

氨基酸是生物模拟物,用三甲酸替代碳酸盐.
它们可以在具有18F标记的PET成像和具有相同结构的中子捕获疗法 (BNCT) 中进行双重使用.

研究的目的:

为了评估三甲酸衍生的烯氨酸 ([18F]BBPA) 作为瘤成像的PET标记物.
评估[18F]BBPA在脑瘤诊断和BNCT促进方面的潜力.

主要方法:

通过竞争抑制试验研究[18F]BBPA细胞积累.
在B16-F10瘤携带的小鼠中评估瘤吸收.
在患有质瘤和转移性脑瘤的患者中进行[18F]BBPA-PET成像.

主要成果:

[18F]BBPA在癌细胞中的积累通过LAT-1载体发生.
[18F]BBPA在小鼠和患者中显示出显著的瘤吸收,显示出高瘤与正常大脑比率 (18.7 ± 5.5).
摄入量独立于MRI对比度增强,表明瘤向强大.

结论:

[18F]BBPA显示了作为全癌症PET探针的承诺,用于增强瘤可视化.
这项研究支持PET成像中[18F]BBPA的临床试验.
这种追踪器可以改善脑瘤诊断,并推进BNCT应用.

关键词:

胺酸是一种胺酸.大脑瘤是什么?定子发射断层扫描 (PET) 是一种定子发射断层扫描.

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