MAPT and tauopathy: Interestingly, P-tau oligomers were not only detected in the tauP301S expressing cells (HEK+tauP301S+HS3ST2) but also in cells expressing the non-mutated tau and HS3ST2 (HEK+tau+HS3ST2), thus mimicking the tau aggregation process in both mutational11,49 and non-mutational tauopathies, which include AD50.