724-铁蛋白纳米颗粒增强CAR T细胞治疗白血病 episode artwork

EPISODE · Mar 31, 2026 · 13 MIN

724-铁蛋白纳米颗粒增强CAR T细胞治疗白血病

from 聊聊Sci

这项研究介绍了一种名为铁蛋白聚合细胞衔接器 (FACE) 的创新平台,旨在增强 CAR T 细胞治疗复发难治性白血病的效力。研究人员发现,白血病细胞与 CAR T 细胞均高表达铁蛋白受体 CD71,以此为靶点设计的 FACE 能够像“锚”一样稳定附着在 T 细胞表面,增强其与肿瘤细胞的结合亲和力。这种策略有效降低了激活 T 细胞所需的抗原密度阈值,从而克服了因抗原下调引起的免疫逃逸和治疗耐药。此外,FACE 还可以封装化疗药物形成 FACED,实现细胞免疫治疗与化疗的协同打击,甚至能消灭抗原缺失的恶性细胞。通过在多种患者来源的异种移植物 (PDX) 模型中的验证,该技术展现了卓越的安全性、通用性以及在临床转化方面的巨大潜力。References: Li F, Hu Y, Wang Y, et al. Ferritin aggregation cell engager for CAR T avidity engineering against refractory leukemias[J]. Cell, 2026.前往小宇宙评论区与主播互动

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724-铁蛋白纳米颗粒增强CAR T细胞治疗白血病

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