超声波 - 响应性骨 - 向脂质体通过增强ROS生成和免疫细胞死亡来抑制骨髓瘤
Jingtao Xu1, Yuxing Chen1, Zhenxing Wang1
1Department of Orthopaedic Surgery, Chongqing Municipal Health Commission Key Laboratory of Musculoskeletal Regeneration and Translational Medicine/Orthopaedic Research Laboratory, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Chongqing 400016, PR China.
概括
这项研究引入了一种新的纳米免疫增强器战略,用于声动疗 (SDT) 治疗骨髓瘤. 这种方法增强了活性氧物种 (ROS) 的产生,并激活了免疫反应,显著抑制了瘤生长和转移.
科学领域:
- 生物医学工程 生物医学工程
- 纳米医学是一种纳米医学.
- 在瘤学瘤学.
背景情况:
- 声动力疗法 (SDT) 对像骨髓瘤这样的深层瘤显示出有前途.
- 提高SDT有效性需要增强反应性氧物种 (ROS) 生产和免疫系统激活.
研究的目的:
- 开发一种基于SDT的纳米免疫增强器战略,用于抑制骨髓瘤.
- 为了增强ROS生成并触发内源性免疫强化途径.
主要方法:
- 构造的超声响应,骨准纳米脂质体 (LPIM) 封装MnO2纳米颗粒和绿色氨酸 (ICG).
- 利用植物酸 (PA) 针对骨髓瘤病变提供向治疗.
- 杆MNO2缓解瘤缺氧并降低谷氨 (GSH) 水平,促进ROS的产生.
主要成果:
- 在体内24小时内,LPIM在骨髓瘤部位实现了有针对性的输送.
- 用LPIM激活SDT抑制了93.5%的原发性瘤生长,减少了骨质溶解,并抑制了转移.
- 释放的MnO2激活了cGAS-STING通路,促进了内源性免疫增强.
结论:
- 开发的纳米免疫增强器战略为基于SDT的骨髓瘤治疗提供了一种新的方法.
- 这种策略通过改善ROS生成和刺激抗瘤免疫力来提高治疗结果.
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