Browsing by Subject "Abca7"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    In vivo validation of late-onset Alzheimer's disease genetic risk factors
    (bioRxiv, 2023-12-24) Sasner, Michael; Preuss, Christoph; Pandey, Ravi S.; Uyar, Asli; Garceau, Dylan; Kotredes, Kevin P.; Williams, Harriet; Oblak, Adrian L.; Lin, Peter Bor-Chian; Perkins, Bridget; Soni, Disha; Ingraham, Cindy; Lee-Gosselin, Audrey; Lamb, Bruce T.; Howell, Gareth R.; Carter, Gregory W.; Radiology and Imaging Sciences, School of Medicine
    Introduction: Genome-wide association studies have identified over 70 genetic loci associated with late-onset Alzheimer's disease (LOAD), but few candidate polymorphisms have been functionally assessed for disease relevance and mechanism of action. Methods: Candidate genetic risk variants were informatically prioritized and individually engineered into a LOAD-sensitized mouse model that carries the AD risk variants APOE4 and Trem2*R47H. Potential disease relevance of each model was assessed by comparing brain transcriptomes measured with the Nanostring Mouse AD Panel at 4 and 12 months of age with human study cohorts. Results: We created new models for 11 coding and loss-of-function risk variants. Transcriptomic effects from multiple genetic variants recapitulated a variety of human gene expression patterns observed in LOAD study cohorts. Specific models matched to emerging molecular LOAD subtypes. Discussion: These results provide an initial functionalization of 11 candidate risk variants and identify potential preclinical models for testing targeted therapeutics.