AV-1980R/A induced strong cellular response specific to Th epitopes incorporated in the MultiTEP platform without activating potentially harmful auto-reactive Th cells specific to tau. Splenocytes from individual mice were re-stimulated in vitro with a cocktail of 12T-helper epitope peptides (2 μg/ml each) and several individual peptides [PADRE, P23, P30, P17, P28] incorporated in MultiTEP platform, as well as Tau2–18 peptide (10 μg/ml). IFNγ spot-forming colonies (SFC) were detected by ELISPOT assay and error bars indicate mean ± SEM (n = 11 per group).