EPISODE · Apr 5, 2026 · 17 MIN
746-INSTALL：基于免疫逃逸型单链DNA的大片段基因写入技术
from 聊聊Sci
这篇研究介绍了一种名为INSTALL的新型基因组写入技术，旨在解决大片段DNA插入过程中的免疫毒性问题。传统方法使用的双链DNA（dsDNA）极易触发哺乳动物细胞的固有免疫反应，导致细胞死亡并限制治疗应用。该研究受原核病毒启发，改用环状单链DNA（cssDNA）作为供体，通过在其关键识别位点结合部分双链寡核苷酸（PIP），成功诱导多种重组酶进行高效工作。实验证明，INSTALL在人类原生细胞和实验小鼠体内均表现出极高的免疫逃逸能力，显著提升了非病毒载体递送的耐受性。这项技术为实现千碱基级的精准基因组编辑提供了一种高保真、低毒性且可重复给药的创新方案。References: Tou C J, Xie K, Ferreira da Silva J, et al. Immune evasive DNA donors and recombinases license kilobase-scale writing[J]. Nature, 2026: 1-11.前往小宇宙评论区与主播互动
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746-INSTALL：基于免疫逃逸型单链DNA的大片段基因写入技术
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