Aberrant tau accumulation caused by MAPT mutations induces early pathological changes in axonal transport that are rescued by p38α inhibition

Nature Neuroscience, Published online: 04 June 2026; doi:10.1038/s41593-026-02266-4 Imaging axonal transport in vivo in the mouse cortex reveals that deficits in axonal transport arise at early stages of tau pathology, are caused by enlarged tau envelopes and are reversed by inhibiting MAPK p38α.