The Influence of APOEε4 on the pTau Interactome in Sporadic Alzheimer’s Disease Background Alzheimer’s disease (AD) is a neurodegenerative disease characterized by extracellular deposition and aggregation of β-amyloid protein (Aβ) forming various types of Aβ deposits and the intracellular accumulation and assembly of abnormally phosphorylated tau p...