EPISODE · Jul 27, 2026 · 20 MIN
1344-通过表位编辑实现非遗毒性移植与体内筛选
from 聊聊Sci
本文介绍了一种创新的非基因毒性造血干细胞移植方案，旨在替代传统具有高毒性的化疗和放疗。研究人员通过表位编辑技术，利用碱基编辑或先导编辑对干细胞的 KIT 蛋白进行微小修改，使其能够抵御特定单克隆抗体的攻击，同时保留细胞正常的生物学功能。这种方法不仅实现了对移植细胞的体内选择与富集，还通过同步编辑 BCL11A 基因来诱导胎儿血红蛋白表达，为治疗镰状细胞病和 β-地中海贫血提供了新途径。实验证明，该策略在不破坏克隆多样性的情况下，能够高效置换血液系统并降低治疗风险。总之，这项研究展示了精准基因编辑与靶向免疫疗法结合的潜力，显著提升了基因疗法的安全性和适用范围。References:Casirati G, Cosentino A, Freschi M, et al. Non-genotoxic transplantation and in vivo selection through epitope editing[J]. Nature, 2026: 1-13.前往小宇宙评论区与主播互动
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1344-通过表位编辑实现非遗毒性移植与体内筛选
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