Advanced Materials·· 6 小时前精选AI 评分58
磁驱动透明质酸水凝胶以时序配体呈递缓解T细胞耗竭
Time‐Encoded Ligand Presentation via a Magnetically Actuated Hydrogel Mitigates T Cell Exhaustion
AI 导读
研究团队构建了一种磁驱动细胞外基质模拟水凝胶，将αCD3ε/αCD28功能化磁性纳米颗粒嵌入柔软透明质酸基质，通过外磁场动态暴露或遮蔽刺激配体，实现TCR刺激时序的可逆控制。
推荐理由
通过磁场可逆开关TCR配体呈递，把刺激时序做成材料属性，为减少T细胞耗竭提供非基因改造路线。
创新点
把TCR刺激的时间维度编码进材料，用磁场可逆开关配体呈递，而非改变配体种类或可溶因子，从而在保持抗原特异性的同时减轻耗竭。
来源：Advanced Materials · doi.org
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