The Christchurch point mutation in mouse APOE reduces Aβ-induced tau and α-synuclein pathologies.

ABSTRACT: Apolipoprotein E (APOE) genotype is well known to influence both amyloid-β (Aβ) and tau pathologies and risk for Alzheimer's disease (AD), but it also affects α-synuclein (α-syn) levels, Lewy pathology and risk of dementia in Parkinson's disease (PD) and dementia with Lewy bodies (DLB). The APOE-R136S (Christchurch, CC) point mutation has been shown to protect against AD pathology and dementia, however, the molecular mechanisms underlying this protection and its effects on α-syn pathology are not well understood. Using CRISPR/Cas9 technology, we created a CC arginine-to-serine point mutation at the conserved location in mouse APOE (R128S) to understand its effects on Aβ, tau and α-syn pathologies. We crossed these APOE CC mice to 5xFAD, PS19 and A53T-αSyn-GFP (A53T) mice. Usi

SUBMITTER: Soto-Faguas CM 

PROVIDER: S-EPMC12637681 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature