超激素IL-15SHR-1501通过调节瘤微环境来增强肺癌患者的免疫反应
Qian Zhang1, Congli Hu1, Minlin Jiang1
1Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China.
The clinical respiratory journal
|August 13, 2025
概括
介素-15 (IL-15) 超激动剂SHR-1501在肺癌模型中显示出显著的抗瘤作用. 将SHR-1501与PD-1阻断结合起来可以增强免疫反应和生存,支持其在非小细胞肺癌 (NSCLC) 治疗中的应用.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 互乐金-15 (IL-15) 是一种细胞因子,在癌症免疫治疗中具有治疗潜力.
- IL-15超激剂在各种癌症中表现出有效性.
- 在肺癌免疫疗法中IL-15超激素的作用尚不清楚.
研究的目的:
- 评估SHR-1501在小鼠肺癌模型中的抗瘤作用.
- 研究SHR-1501对瘤微环境 (TME) 和全身免疫的影响.
- 评估SHR-1501与PD-1阻断结合的协同作用潜力,并探索其无效应.
主要方法:
- 在易斯肺癌 (LLC) 和Kras G12D/p53-/- (KP) 小鼠模型中注射SHR-1501的内注射.
- 流细胞计分析TME和循环中的免疫细胞种群.
- 免疫组织化学 (IHC) 和单细胞RNA测序以评估TME调制.
- 用PD-1单克隆抗体 (mAb) 进行组合治疗,并评估abscopal效应.
主要成果:
- 在KP和LLC模型中,SHR-1501显著抑制了瘤生长.
- 在TME中增加了CD8+ T细胞的透,效应记忆CD8+ T细胞 (TEM) 和自然杀手 (NK) 细胞.
- 增强了全身免疫反应,包括CD8+ T细胞,TEM和早期NK细胞的增加.
- SHR-1501促进了M1巨细胞极化和TME的炎症变化.
- 与PD-1 mAb的结合导致了协同作用的抗瘤效应和长时间的生存,没有显著的毒性.
- 有证据表明,SHR-1501可能会诱导腹效应.
结论:
- 在肺癌模型中,SHR-1501表现出强大的抗瘤活性.
- 该机制涉及增强CD8+T细胞,NK细胞和M1巨细胞活动.
- 与PD-1 mAb的联合治疗显示出显著的协同效应和非小细胞肺癌 (NSCLC) 的临床应用潜力.
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