加强组合免疫疗法从调节瘤炎症环境通过低氧反应的纳米凝来加强
Wenhe Luo1,2, Yanqiao Zeng1,2, Qingle Song1,2
1Laboratory of Inflammation and Vaccines, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China.
Advanced healthcare materials
|December 8, 2023
概括
这项研究开发了一种纳米凝,用于输送迪亚塞林和EGCG,通过重编程瘤微环境 (TME) 和增强细胞毒性T淋巴细胞 (CTLs) 来增强抗瘤免疫力来增强抗瘤免疫力.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 材料科学 材料科学 材料科学
背景情况:
- 免疫瘤疗法的有效性受到免疫抑制性瘤微环境 (TME) 和耗尽的淋巴细胞的限制.
- 需要一个协同策略来改善TME并增加细胞毒性T淋巴细胞 (CTL) 透.
研究的目的:
- 开发一种对TME低氧反应的纳米凝 (NG),用于增强素和EGCG的输送.
- 评估结合治疗对瘤免疫抑制和CTL功能的影响.
主要方法:
- 一种对TME低氧反应的纳米凝 (NG) 的配方.
- 系统注射NG加载了迪亚塞林和EGCG.
- 对TME调节的评估,包括骨髓衍生抑制细胞 (MDSC) 和调节性T细胞 (Tregs).
- 对IL-6/STAT3通路抑制和PD-L1表达的评估.
- 与TIM3阻塞疗法结合,分析CTL透和全身免疫.
主要成果:
- 迪亚赛林降低了MDSCs和Tregs,抑制了IL-6/STAT3信号传递,并诱导了瘤细胞的亡.
- EGCG抑制了PD-L1表达,恢复了CTL的抗瘤活性.
- 与TIM3阻断联合治疗增强了CTL透和全身免疫力,导致显著的抗瘤反应.
结论:
- 开发的纳米凝有效地提供治疗剂来重编程TME并增强抗瘤免疫力.
- 这一战略为克服当前免疫瘤疗法的局限性和应对临床挑战提供了有希望的方法.
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