一种内细胞酶触发的无向释放酶-产药治疗系统及其在缺血损伤中的应用
Bo He1, Yating Zhang2, Huaping Liu3
1State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
Advanced healthcare materials
|July 8, 2024
概括
这项研究引入了一种新型的酶原药疗法,用于控制氧化 (NO) 输送. 该系统使用特定的酶激活前药物,显示出治疗缺血和炎症等疾病的前景.
科学领域:
- 生物医学工程 生物医学工程
- 药物输送系统 药物输送系统
- 酶原药疗法是一种酶原药疗法.
背景情况:
- 氧化 (NO) 对于生理过程至关重要,其可控的输送是治疗疾病的关键.
- 现有的酶原药疗法 (EPT) 系统面临非特异性释放和代谢副作用的挑战.
- 有针对性的NO释放对于在各种条件下有效的治疗结果至关重要.
研究的目的:
- 开发一种新的,直角的EPT系统,用于精确的氧化 (NO) 输送.
- 使用一种特定的内细胞酶 (Cel5A-h38) 和一种新型前药 (Cel2-NO) 进行向激活.
- 在后肢缺血的临床前模型中评估该系统的治疗疗效.
主要方法:
- 合成了一种新型的蜂生物oside-diazeniumdiolate (Cel2-NO) 前药物.
- 来自肠细菌的内细胞酶 (Cel5A-h38) 用于前期药物激活.
- 对内源性酶进行了对立性评估,并使用体内成像来跟踪药物释放.
- 在小鼠后肢缺血模型中评估了治疗效果.
主要成果:
- 这种Cel2-NO前药对内源酶具有很高的稳定性,确保了特异性.
- 在不影响天然基质的情况下,Cel5A-h38选择性地激活了Cel2-NO前药物.
- 在体内成像证实了向药物释放.
- 在缺血模型中,EPT系统显著减少缺血损伤,改善行走,调节炎症,增强组织修复.
结论:
- 开发的EPT系统为NO输送提供了一个高度具体和有针对性的方法.
- 这种新的系统克服了现有的EPT的局限性,显示出显著的治疗潜力.
- 该系统广泛适用于通过控制药物输送来治疗心血管疾病,瘤和与炎症有关的疾病.
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