在瘤微环境中重新编程细胞衰老可以通过多功能纳米晶来增强癌症免疫疗法
Zheng Wang1, Yinglu Chen2,3, Hui Fang3
1Suzhou Institute of Nano-Tech and NanoBionics, Chinese Academy of Sciences, Suzhou 215123, China.
Science advances
|November 1, 2024
概括
为癌症免疫疗法重新利用衰老的瘤细胞需要阻断JAK2/STAT3通路. 这种策略通过调节瘤微环境并减少免疫抑制因素来增强抗瘤免疫力.
科学领域:
- 癌症免疫学 癌症免疫学
- 瘤微环境调制瘤微环境调制
- 纳米粒子药物输送 药物输送
背景情况:
- 衰老的瘤细胞提供免疫潜力,但也可以通过衰老相关的分泌表型 (SASP) 抑制免疫力.
- 准JAK2/STAT3通路对于管理SASP和增强抗瘤反应至关重要.
研究的目的:
- 调查阻断JAK2/STAT3通路是否可以增强alizertib (Ali) 诱导的衰老的免疫疗效.
- 开发一种纳米颗粒晶体配方 (Ali-Rux),用于同时提供阿里和鲁克索利提尼布 (Rux),以重新编程SASP.
- 评估阿里-鲁克斯与PD-L1阻断结合用于癌症免疫治疗的潜力.
主要方法:
- 使用 ruxolitinib (Rux) 与 alisertib (Ali) 诱导的衰老相结合,阻止了JAK2/STAT3通路.
- 纳米颗粒晶体 (Ali-Rux) 的配方,用于同时提供两种药物.
- 用阿里-鲁克斯编排的衰老细胞进行免疫接种,并评估免疫细胞激活和瘤微环境变化.
- 在临床前癌症模型中使用PD-L1阻断的联合疗法.
主要成果:
- 用Rux阻断JAK2/STAT3通路通过减少免疫抑制SASP来增强Ali诱导的免疫原衰老.
- 阿里-鲁克斯纳米粒子促进抗原呈现细胞的激活和抗瘤免疫监测.
- 这种方法重塑瘤微环境,增加CD8+T细胞和NK细胞活性,同时减少骨髓衍生抑制细胞 (MDSCs).
- 结合PD-L1阻断的联合治疗导致持久的抗瘤免疫反应.
结论:
- 通过联合抑制 Aurora 激酶和 JAK2 / STAT3 途径重新编程 SASP 是促进癌症免疫治疗的可行策略.
- 阿里-鲁克斯纳米粒子系统有效地调节衰老细胞以增强抗瘤免疫力.
- 这种TME重塑方法作为一种新的癌症免疫治疗策略具有前景,特别是与免疫检查点抑制剂相结合时.
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