Theranostic Nanoplatform with Hydrogen Sulfide Activatable NIR Responsiveness for Imaging‐Guided On‐Demand Drug Release
作者:Ben Shi、Ning Ren、Luyan Gu、Ge Xu、Rongchen Wang、Tianli Zhu、Ying Zhu、Chunhai Fan、Chunchang Zhao、He Tian
DOI:10.1002/anie.201909883
日期:2019.11.18
agents for imaging-guided and photocontrolled drug release. The system targets H2 S-rich cancers. This nanoplatform shows H2 S-activatable NIR-II emission and NIR light controllable release of the drug Camptothecin-11. Upon administering the system to HCT116 tumor-bearing mice, the tumor is greatly suppressed with minimal side effects, arising from the synergy of the cancer-specific and NIR light activated
NIR光响应纳米平台有望在精密癌症医学中按需释放药物。但是,当前可用的系统利用了缺乏靶标特异性的“永远在线”的光热换能器,因此不能准确地将肿瘤与正常组织区分开。这里开发的是一种治疗性纳米平台,其特征在于H2 S介导的近红外光热剂的原位生产,用于成像引导和光控药物释放。该系统针对富含H2 S的癌症。该纳米平台显示了喜树碱11药物的H2 S活化NIR-II发射和NIR光可控释放。在将系统施用于HCT116荷瘤小鼠后,由于癌症特异性和NIR光活化疗法的协同作用,极大地抑制了肿瘤,且副作用极小。