APOE and tauopathy: CITE‐Seq did not reveal a subpopulation unique to the P301L+K18 model, but we did observe a modest increase in the DAM population, consistent with other scRNA‐Seq studies in other tauopathy models, such as TE4 mice (P301S expressing human APOE4) and Tau4RΔK‐AP mice (Chen et al., 2023; Kim et al., 2022).