接近红外II激活过渡金属 (((II) 协调性联体激素原始强大的抗癌免疫力
Fan Qi1, Yaming Wang1, Hao Zhang1
1State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin 300071, China.
Journal of medicinal chemistry
|November 25, 2024
概括
新型可光激活的金属药物克服了瘤缺氧和免疫抑制. 靠近红外II光激活的基化合物诱导免疫细胞死亡,在体内显著抑制瘤生长.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 癌症治疗 癌症治疗
背景情况:
- 可光激活的金属药物通过结合瘤细胞根除和免疫刺激来提供向的癌症治疗.
- 目前的局限性包括氧气依赖,狭窄的可见光反应能力和较差的免疫性,阻碍了深度,缺氧和免疫抑制瘤的疗效.
研究的目的:
- 为增强癌症治疗设计新型过渡金属 (II) 协调联结激素.
- 解决现有的可光激活金属药物的局限性,重点关注氧气独立性和近红外II (NIR-II) 光激活.
主要方法:
- 开发了具有强烈NIR-II吸收的 (II) 协调联体基 (BPDP-Co).
- 评估无氧光热性能和内等质网膜向能力.
- 评估BPDP-Co在1064nm激光照射下在正常和缺氧条件下诱导热和释放损伤相关分子模式 (DAMPs) 和促炎细胞因子的疗效.
主要成果:
- BPDP-Co显示出强烈的NIR-II吸收和无氧光热性能.
- 1064nm激光照射BPDP-Co诱导了瘤细胞的高度免疫性热,即使在严重的缺氧下.
- 在体内研究显示,小鼠显著抑制4T1瘤生长 (85.7%的抑制率),表明强大的抗瘤免疫反应.
结论:
- 开发的 (II) 协调联体基 (BPDP-Co) 有效地克服了传统光激活金属药物的局限性.
- 对BPDP-Co的NIR-II激活显示出针对性癌症治疗和免疫治疗的强大治疗潜力,特别是在具有挑战性的瘤微环境中.
- 这一战略有望通过新型金属制药设计推进光热疗法和癌症免疫疗法.
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