通过内源性反应性氧物种激活的有机一氧化碳原药,用于向输送
Inga Cernauskiene1, Claudio D Navo2, Carlos Labão-Almeida3
1Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
Journal of the American Chemical Society
|July 4, 2025
概括
一种新的无金属一氧化碳 (CO) 前药可用于治疗富含活性氧物种 (ROS) 的疾病. 这种激素激活系统提供了比金属基疗法更安全的替代方案,
科学领域:
- 生物结合化学
- 医学化学
- 药物输送系统
背景情况:
- 一氧化碳 (CO) 在具有高反应性氧物种 (ROS) 水平的条件下具有治疗潜力,例如炎症和癌症.
- 目前针对性CO输送的局限性阻碍了其临床应用,需要开发先进的CO原药.
- 与金属相关的毒性是现有的基于金属的治疗策略的一个问题.
研究的目的:
- 开发一种新型,无金属,激素激活的一氧化碳 (CO) 前药.
- 克服与目标碳排放相关的挑战,减轻与金属相关的毒性.
- 使CO前药物与抗体等生物分子进行特定的结合,以提高治疗效果.
主要方法:
- 一种基于三级甲基的CO原药的设计和合成.
- 在生理条件下评估前药物稳定性.
- 激素触发的激活机制释放CO.
- 通过固相合成将CO-原药构成合成.
- 预先药物与治疗抗体 (trastuzumab) 的特定部位生物结合.
主要成果:
- 在生理条件下开发的CO前药物是稳定的,在激素激活时释放CO,2-乙基-1-丁和一个醇载体.
- 这种前药物与trastuzumab成功结合,达到前药与抗体的比率为23.
- 在HER2高表达细胞中显示出有效的瘤特异性CO释放.
- 没有金属的方法避免了与金属相关的毒性.
结论:
- 一种新的,无金属,激素激活的CO前药物策略已成功开发.
- 这种前药可以有效地纳入和抗体疗法,以提供向治疗.
- 这些发现为探索CO在ROS丰富环境中的治疗应用开辟了新的途径.
- 这种方法对各种基于和蛋白质的疗法具有广泛的适用性.
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