Abstract

Pathogenic allele silencing is a promising treatment for genetic hereditary diseases. Here, we develop an RNA-cleaving tool, TaqTth-hpRNA, consisting of a small, chimeric TaqTth, and a hairpin RNA guiding probe. With a minimal flanking sequence-motif requirement, in vitro and in vivo studies show TaqTth-hpRNA cleaves RNA efficiently and specifically. In an Alzheimer’s disease model, we demonstrate silencing of mutant APPswe mRNA without altering the wild-type APP mRNA. Notably, due to the compact size of TaqTth, we are able to combine with APOE2 overexpression in a single AAV vector, which results in stronger inhibition of pathologies.

Details

Title
TaqTth-hpRNA: a novel compact RNA-targeting tool for specific silencing of pathogenic mRNA
Author
Xu, Chong; Cao, Jiyanuo; Huanran Qiang; Liu, Yu; Wu, Jialin; Luo, Qiudan; Meng, Wan; Wang, Yujie; Wang, Peiliang; Cheng, Qian; Zhou, Guohua; Sima, Jian; Guo, Yongjian; Xu, Shu
Pages
1-25
Section
Method
Publication year
2024
Publication date
2024
Publisher
BioMed Central
ISSN
14747596
e-ISSN
1474760X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3079229150
Copyright
© 2024. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.