自诱导的MoO3-x纳米线增强光热触发癌症免疫疗法
Lizhen He1, Qi Chen1, Qichen Lu2
1Department of Oncology, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, China.
Angewandte Chemie (International ed. in English)
|April 30, 2024
概括
三氧化纳米线诱导细胞毒性自和免疫细胞死亡,增强癌症免疫疗法. 这种方法将光热疗法与免疫检查点阻塞相结合,具有强大的抗瘤活性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症研究 癌症研究
背景情况:
- 自可以通过释放瘤抗原和诱导免疫细胞死亡 (ICD) 来抑制癌症治疗.
- 开发有效的细胞毒性自诱导剂对于创新的癌症治疗至关重要.
研究的目的:
- 开发具有高氧空位和光热响应性的新型三氧化-x纳米线 (MoO3-x NWs).
- 研究MoO3-x NWs在诱导细胞毒性自和严重的ICD用于增强癌症免疫疗法的潜力.
主要方法:
- 合成MoO3-x NWs具有高氧空位和强光热特性.
- 结合MoO3-x NWs与光热疗法 (PTT) 和PD-1免疫检查点封锁.
- 在体内评估自诱导,瘤抗原释放,树突细胞成熟,T细胞激活和免疫细胞两极分化.
主要成果:
- 与PTT结合的MoO3-x NWs有效诱导了自,促进了瘤抗原释放和树突细胞成熟.
- 这种组合疗法激活了细胞毒性T淋巴细胞 (CTL) 介导的适应性免疫.
- 用PD-1阻断调节巨细胞和T细胞进行联合治疗,缓解免疫抑制并加强抗瘤活性.
结论:
- MoO3-x NWs是细胞毒性自和ICD的有效诱导剂,增强光热免疫疗法.
- 该策略通过促进抗原呈现和调节瘤微环境来增强抗瘤免疫反应.
- 这项研究为在先进的癌症治疗策略中使用MoO3-x NWs提供了机制的理解.
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