中和IL-38激活了 γδ T 细胞依赖的抗瘤免疫力,并使其对化疗敏感
Priscila da Silva1, Javier Mora1,2,3,4, Xin You1
1Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany.
Journal for immunotherapy of cancer
|August 29, 2024
概括
阻断介素-38 (IL-38) 通过促进T细胞透和提高化疗疗效率来增强抗瘤免疫力. 这种方法显示出治疗甚至免疫学冷瘤的希望.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 炎症研究的研究.
背景情况:
- 介素-38 (IL-38) 被确定为自身炎症的负调节剂.
- 抗瘤免疫和自身炎症之间的复杂关系表明,IL-38阻断可以增强瘤免疫控制.
研究的目的:
- 研究阻断IL-38以增强抗瘤免疫力的潜力.
- 探索IL-38阻断影响瘤微环境和免疫细胞组成的机制.
主要方法:
- 利用转基因乳腺癌模型来评估IL-38阻塞效应.
- 使用中和抗体对IL-38阻断,单独和化疗.
- 分析了免疫细胞透,信号通路 (γδ T 细胞受体,Notch) 和基因表达 (RNA 测序).
主要成果:
- 通过基因切除或抗体中和,阻断IL-38,减少瘤生长和改善化疗结果.
- 观察到瘤透了gδ T 细胞和CD8+ T 细胞的增加,gδ T 细胞对于CD8+ T 细胞招募至关重要.
- γδ T 细胞通过XCL1吸引了cDC1,然后通过Notch通路激活了CD8+ T 细胞;IL-38与这些免疫成分和患者存活率有负相关.
结论:
- 干扰IL-38显著增加了抗瘤免疫力.
- 这种策略即使在免疫反应较差的瘤 (免疫冷瘤) 中也有效.
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