作为潜在的免疫光动力学治疗剂的卢德克萨菲林 - 塞莱科西布结合物
Jusung An1, Kong-Peng Lv2,3, Calvin V Chau4
1Department of Chemistry, Korea University, Seoul 02841, Korea.
Journal of the American Chemical Society
|July 3, 2024
概括
免疫光动力疗法 (IPDT) 在癌症治疗方面具有前景. 一种新型纳米光敏感剂Ex-apt@LuCXB针对癌症干细胞,增强IPDT,并在临床前模型中显示出显著的抗瘤作用.
科学领域:
- 癌症学
- 纳米医学
- 摄影化学
背景情况:
- 免疫光动力疗法 (IPDT) 是一种有前途的癌症治疗方法.
- 新型光敏感剂对于实现完全根除瘤而不会复发至关重要.
研究的目的:
- 开发和评估一种用于IPDT的新型光敏感剂结合物LuCXB.
- 创建一个基于aptamer的外体的纳米光敏感剂 (Ex-apt@LuCXB) 针对癌症干细胞以提高体内疗效.
主要方法:
- 合成LuCXB,这是一个切莱科西布的结合物和一个luteciumtexaphyrin核心.
- 准备Ex-apt@LuCXB用于向CD133+癌症干细胞.
- 在肝癌和乳腺癌小鼠模型中评估光敏感性,生物相容性,瘤向性和治疗功效.
主要成果:
- 在730nm光照射下,LuCXB通过I型光动态路径产生超氧化基.
- 前apt@LuCXB表现出良好的光敏感性,生物相容性和瘤向性.
- 在小鼠模型中,Ex- apt@ LuCXB通过协同抗血管生成和光免疫疗法显著抑制瘤生长.
结论:
- Ex-apt@LuCXB是一种有效的IPDT纳米光敏感剂,针对癌症干细胞.
- 观察到的治疗效果是由抗血管生成和光诱导癌症免疫治疗的组合驱动的.
- 这种方法有可能彻底根除瘤并防止复发.
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