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2-[¹⁸F]Doxorubicin诱导心脏毒性的氧酸PET成像

Juan A Azcona¹, Anja S Wacker¹, Chul-Hee Lee¹

¹Department of Radiology, Weill Cornell Medicine, 413 E 69th Street, Room BB-1604, New York, NY, 10021, USA.

Molecular imaging and biology

|January 14, 2025

概括

2-[18F]基酸 ([18F]FPA) 显示出对小鼠多克索鲁比诱导心肌病的成像有希望. 与AZD3965同时使用可提高成像对比度,减少放射性暴露,有助于早期诊断心脏损伤.

科学领域:

心血管研究的心血管研究.
医学成像医学成像
药理学药理学是指药理学的学科.

背景情况:

对儿科癌症的 doxorubicin 治疗通常会导致心脏毒性.
早期诊断多克索鲁比诱导的心肌病变是预防晚期疾病的关键.
脂质代谢的变化,包括增强的短链脂肪酸 (SCFA) 摄取,伴随心肌病.

研究的目的:

为了评估2-[18F]基酸 ([18F]FPA),一个SCFA模拟物,作为心脏损伤的成像生物标志物.
评估[18F]FPA在小鼠模型中检测多克索鲁比辛诱导的心脏毒性的实用性.

主要方法:

在小鼠使用多克索鲁比 (24 mg/kg累计剂量超过14天) 诱导心脏毒性.
心脏功能通过心脏重量,射出分数和热素水平来评估.
用PET和马计数测量全身和心脏[18F]FPA吸收,使用和不使用MCT1抑制剂AZD3965.

主要成果:

用多克索鲁比治疗的小鼠显示心脏[18F]FPA吸收量显著增加.
AZD3965在非心脏组织中选择性地降低了[18F]FPA的吸收.
同时服用[18F]FPA和AZD3965可改善心脏成像对比度,降低放射性暴露.

结论:

[18F]FPA是一种新的PET成像工具,用于检测 doxorubicin 诱导的心肌病变化的代谢变化.
将[18F]FPA与AZD3965结合起来,可以提高其诊断效用和安全性.

关键词:

2-[18F]诺烯酸是二烯酸的一种.AZD396565 是一个心脏有毒性 - 心脏有毒性德克索鲁比辛是一种多克索鲁比辛.脂肪酸是一种脂肪酸.代谢过程中的代谢.单碳氧酸盐运输体的运输体定子发射断层扫描 (PET) 是一种定子发射断层扫描.短链脂肪酸是一种短链脂肪酸.

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