Gene therapy using Aβ variants for amyloid reduction.
Gene therapy using Aβ variants for amyloid reduction.
复制标题
使用 Aβ 变体进行淀粉样蛋白减少的基因治疗。
DOI:
10.1016/j.ymthe.2021.02.026
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Jankowsky,JoannaL
中科院分区:
文献类型:
--
作者:
Park,Kyung-Won;Wood,CalebA;Li,Jun;Taylor,BethanyC;Oh,SaeWoong;Young,NicolasL;Jankowsky,JoannaL
Numerous aggregation inhibitors have been developed with the goal of blocking or reversing toxic amyloid formationin vivo. Previous studies have used short peptide inhibitors targeting different amyloid β (Aβ) amyloidogenic regions to prevent aggregation. Despite the specificity that can be achieved by peptide inhibitors, translation of these strategies has been thwarted by two key obstacles: rapid proteolytic degradation in the bloodstream and poor transfer across the blood-brain barrier. To circumvent these problems, we have created a minigene to express full-length Aβ variants in the mouse brain. We identify two variants, F20P and F19D/L34P, that display four key properties required for therapeutic use: neither peptide aggregates on its own, both inhibit aggregation of wild-type Aβin vitro, promote disassembly of pre-formed fibrils, and diminish toxicity of Aβ oligomers. We used intraventricular injection of adeno-associated virus (AAV) to express each variant in APP/PS1 transgenic mice. Lifelong expression of F20P, but not F19D/L34P, diminished Aβ levels, plaque burden, and plaque-associated neuroinflammation. Our findings suggest that AAV delivery of Aβ variants may offer a novel therapeutic strategy for Alzheimer's disease. More broadly our work offers a framework for identifying and delivering peptide inhibitors tailored to other protein-misfolding diseases.
登录
查看更多内容
影响因子:
15
作者:
Bernstein, SL;Wyttenbach, T;Bowers, MT
通讯作者:
Bowers, MT
影响因子:
4.8
作者:
D. Pitsi;J. Octave
通讯作者:
J. Octave
DOI:
10.1002/(sici)1097-4695(19990605)39:3
发表时间:
1999-06
期刊:
Journal of neurobiology
影响因子:
--
作者:
J. Poduslo;G. Curran;Asok Kumar;Blas Frangione;Claudio Soto
通讯作者:
J. Poduslo;G. Curran;Asok Kumar;Blas Frangione;Claudio Soto
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Janice A. Maloney;Travis W. Bainbridge;Amy Gustafson;Shuo Zhang;Roxanne V Kyauk;Pascal;Steiner;M. Brug;Yichin Liu;J. Ernst;R. Watts;K. Jasvinder;Atwal
通讯作者:
Atwal
影响因子:
--
作者:
Shuyun Deng;K. Oka
通讯作者:
K. Oka