Besides, as observed under electron microscopy, tannic acid inhibits human full‐length tau protein (tau1–441) aggregation.[265] Subsequently, it was demonstrated that encapsulated tannic acid in a liposome could cross the BBB using a mouse brain endothelial cell model; besides, it reduces tau aggregation in human neuroblastoma cells SK‐N‐SH.[266] In a recent study, the effect of tannic acid on tau aggregation was analyzed by ThT fluorescence assays and transmission electron microscopy. This evidence concerns the gene MAPT and neuroblastoma.