Scholarlink

<p>The advancement of bioorthogonal bond-breaking chemistry requires precise spatiotemporal control over chemical reactions. In this study, we introduce a click-release strategy based on the reaction between mono-alkyl-hydroxylamine and cyclooctyne (COT), enabling rapid and nearly complete payload release. We demonstrate that mono-alkyl-hydroxylamine and hydroxylamine react with COT to form nitrone and oxime, respectively, facilitating a versatile and efficient release mechanism. By conjugating mono-alkyl-hydroxylamine with responsive cleavable groups, we convert its inherent reactivity into an on-demand activation system. In vivo, this strategy is applied in a 4T1 mouse breast tumor model, showing significant tumor inhibition compared to the parent anticancer drug. Additionally, in local anesthesia, the anesthetic effect could be modulated by light exposure, allowing for repeated activation. This click-release system combines fast kinetics, high release efficiency, and precise spatiotemporal control, offering promising applications in chemical biology and drug delivery.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Spatiotemporally controlled drug release via a click-release system utilizing mono-alkyl-hydroxylamine and cyclooctyne chemistry

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月16日

查看全文
  • Xiaowei Xu,
  • Xidan Tong,
  • Yangfei Shi,
  • Xin Wang,
  • Yanzhao Chen,
  • Yuanan Wang,
  • Mingxin Cheng,
  • Shuanglong Chen,
  • Hao Hao,
  • Yan Liang,
  • Weiwei Guo,
  • Yueqin Zheng

摘要

The advancement of bioorthogonal bond-breaking chemistry requires precise spatiotemporal control over chemical reactions. In this study, we introduce a click-release strategy based on the reaction between mono-alkyl-hydroxylamine and cyclooctyne (COT), enabling rapid and nearly complete payload release. We demonstrate that mono-alkyl-hydroxylamine and hydroxylamine react with COT to form nitrone and oxime, respectively, facilitating a versatile and efficient release mechanism. By conjugating mono-alkyl-hydroxylamine with responsive cleavable groups, we convert its inherent reactivity into an on-demand activation system. In vivo, this strategy is applied in a 4T1 mouse breast tumor model, showing significant tumor inhibition compared to the parent anticancer drug. Additionally, in local anesthesia, the anesthetic effect could be modulated by light exposure, allowing for repeated activation. This click-release system combines fast kinetics, high release efficiency, and precise spatiotemporal control, offering promising applications in chemical biology and drug delivery.