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Träfflista för sökning "WFRF:(Maguire Casey A) srt2:(2018)"

Sökning: WFRF:(Maguire Casey A) > (2018)

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  • Gyorgy, Bence, et al. (författare)
  • CRISPR/Cas9 Mediated Disruption of the Swedish APP Allele as a Therapeutic Approach for Early-Onset Alzheimer's Disease
  • 2018
  • Ingår i: Molecular Therapy Nucleic Acids. - : CELL PRESS. - 2162-2531. ; 11, s. 429-440
  • Tidskriftsartikel (refereegranskat)abstract
    • The APPswe (Swedish) mutation in the amyloid precursor protein (APP) gene causes dominantly inherited Alzheimer's disease (AD) as a result of increased beta-secretase cleavage of the amyloid-beta (A beta) precursor protein. This leads to abnormally high A beta levels, not only in brain but also in peripheral tissues of mutation carriers. Here, we selectively disrupted the human mutant APP(sw) allele using CRISPR. By applying CRISPR/Cas9 from Streptococcus pyogenes, we generated allele-specific deletions of either APP(sw) or APP(WT). As measured by ELISA, conditioned media of targeted patient-derived fibroblasts displayed an approximate 60% reduction in secreted A beta. Next, coding sequences for the APP(sw)-specific guide RNA (gRNA) and Cas9 were packaged into separate adeno-associated viral (AAV) vectors. Site-specific indel formation was achieved both in primary neurons isolated from APP(sw) transgenic mouse embryos (Tg2576) and after co-injection of these vectors into hippocampus of adult mice. Taken together, we here present proof-of-concept data that CRISPR/Cas9 can selectively disrupt the APP(sw) allele both ex vivo and in vivo-and thereby decrease pathogenic A beta. Hence, this system may have the potential to be developed as a tool for gene therapy against AD caused by APPswe and other point mutations associated with increased A beta.
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