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550-IL-12强化型CAR-T细胞重塑肿瘤微环境治疗转移性癌症 episode artwork

EPISODE · Feb 24, 2026 · 16 MIN

550-IL-12强化型CAR-T细胞重塑肿瘤微环境治疗转移性癌症

from 聊聊Sci

这项发表在《Cancer Cell》上的研究介绍了一种利用装甲型CAR-T细胞治疗实体瘤的新策略。研究人员通过设计靶向肿瘤相关巨噬细胞(TAMs)中特定蛋白(如FOLR2或TREM2)的CAR-T细胞,并结合白细胞介素-12(IL-12)的局部释放,成功清除了一类具有免疫抑制作用的巨噬细胞。这种疗法不仅能直接改变肿瘤微环境,还能激活机体自身的内源性抗肿瘤免疫反应,促进细胞毒性T细胞的扩增。实验证明,该方法在小鼠卵巢癌和胰腺癌等侵袭性模型中实现了显著的肿瘤消退并延长了生存期。此外,研究还通过剂量优化和蛋白质稳定性结构域的设计,有效解决了IL-12可能产生的全身毒性风险。总之,该成果为治疗传统免疫疗法难以奏效的转移性实体瘤提供了一种兼顾有效性与安全性的新途径。 References: Mateus-Tique J, Lakshmi A, Singh B, et al. Armored macrophage-targeted CAR-T cells reset and reprogram the tumor microenvironment and control metastatic cancer growth[J]. Cancer Cell, 2026. 前往小宇宙评论区与主播互动

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550-IL-12强化型CAR-T细胞重塑肿瘤微环境治疗转移性癌症

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