PAD-exposed tau (TNT1 antibody) colocalized with oligomeric tau (TOC1 antibody) in cultures treated with AD-tau (Fig. 3C, D; fraction of TNT1 overlapping with TOC1 = 0.287 ±0.131) and Con-treated neurons (Fig. 3B), but both were absent in PBS-treated neurons (Fig. 3A). Here, MAPT is linked to Alzheimer disease.