EPISODE · Mar 3, 2026 · 20 MIN
581-组氨酸扫描提升T细胞受体敏感性与捕获键工程
from 聊聊Sci
这项研究介绍了一种名为组氨酸扫描的通用策略，旨在通过增强力敏受体的力驱动型受紧键形成来提升免疫治疗的疗效。研究团队通过将T细胞受体（TCR）的关键区域突变为组氨酸，成功筛选出具有低亲和力但高反应强度的受体变体，这有效规避了传统高亲和力受体常见的脱靶毒性风险。实验数据表明，这些经工程化改造的TCR在针对实体瘤和白血病的治疗中展现出卓越的肿瘤杀伤力，且具备更高的临床安全性。此外，该方法还被成功应用于调节Notch通路和Fc受体等其他重要的配体-受体交互系统。总体而言，该技术通过调控分子间的物理受力特性，为开发精密且强效的细胞疗法和抗体药物提供了新的科学范式。References: Wang Y, Wang Y, Yuan W, et al. Tuning the sensitivity of mechanosensory receptors through histidine scanning[J]. Cell, 2026.前往小宇宙评论区与主播互动
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581-组氨酸扫描提升T细胞受体敏感性与捕获键工程
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