Article ; Online: Therapeutic Genome Editing With CRISPR/Cas9 in a Humanized Mouse Model Ameliorates α1-antitrypsin Deficiency Phenotype.
2018 Volume 29, Page(s) 104–111
Abstract: α1-antitrypsin (AAT) is a circulating serine protease inhibitor secreted from the liver and important in preventing proteolytic neutrophil elastase associated tissue damage, primarily in lungs. In humans, AAT is encoded by the SERPINA1 (hSERPINA1) gene ... ...
Abstract | α1-antitrypsin (AAT) is a circulating serine protease inhibitor secreted from the liver and important in preventing proteolytic neutrophil elastase associated tissue damage, primarily in lungs. In humans, AAT is encoded by the SERPINA1 (hSERPINA1) gene in which a point mutation (commonly referred to as PiZ) causes aggregation of the miss-folded protein in hepatocytes resulting in subsequent liver damage. In an attempt to rescue the pathologic liver phenotype of a mouse model of human AAT deficiency (AATD), we used adenovirus to deliver Cas9 and a guide-RNA (gRNA) molecule targeting hSERPINA1. Our single dose therapeutic gene editing approach completely reverted the phenotype associated with the PiZ mutation, including circulating transaminase and human AAT (hAAT) protein levels, liver fibrosis and protein aggregation. Furthermore, liver histology was significantly improved regarding inflammation and overall morphology in hSERPINA1 gene edited PiZ mice. Genomic analysis confirmed significant disruption to the hSERPINA1 transgene resulting in a reduction of hAAT protein levels and quantitative mRNA analysis showed a reduction in fibrosis and hepatocyte proliferation as a result of editing. Our findings indicate that therapeutic gene editing in hepatocytes is possible in an AATD mouse model. |
---|---|
MeSH term(s) | Adenoviridae/genetics ; Animals ; CRISPR-Cas Systems ; Cell Proliferation ; Disease Models, Animal ; Gene Editing ; Gene Expression ; Genetic Vectors/genetics ; Humans ; Mice ; Mice, Transgenic ; Phenotype ; Transduction, Genetic ; Transgenes ; alpha 1-Antitrypsin/blood ; alpha 1-Antitrypsin/genetics ; alpha 1-Antitrypsin/metabolism ; alpha 1-Antitrypsin Deficiency/genetics ; alpha 1-Antitrypsin Deficiency/metabolism ; alpha 1-Antitrypsin Deficiency/pathology ; alpha 1-Antitrypsin Deficiency/therapy |
Chemical Substances | alpha 1-Antitrypsin |
Language | English |
Publishing date | 2018-02-19 |
Publishing country | Netherlands |
Document type | Journal Article |
ZDB-ID | 2851331-9 |
ISSN | 2352-3964 |
ISSN (online) | 2352-3964 |
DOI | 10.1016/j.ebiom.2018.02.015 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
Zs.A 7090: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG) |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.