IHC and IF were performed as previously described12 (link),14 (link). For IHC staining of NP-tau and Aβ, primary antibodies AT8 (Thermo Fisher Scientific, MN1020B, 1:500) and HJ3.4 (2 μg/ml in-house) respectively were used.
For IF staining, co-stains were performed for X34, BACE1, and AT8. Fibrillar Aβ was stained with X34 dye (SML-1954) and antibodies to AT8 and BACE1 (abcam, ab108394, 1:500) were used to evaluate peri-plaque pathologies.