The present invention relates to a method of treating or preventing a neurological condition mediated by a tau-dependent signalling complex in neurons of a subject, comprising treating the subject to: (a) promote phosphorylation of one or more amino acids residues of tau, wherein the phosphorylation of the amino acid residues causes disruption of the tau-dependent signalling complex in neurons of the subject； or (b) introduce a variant of tau that causes disruption of the tau-dependent signalling complex in neurons of the subject. The invention also relates to vectors, compositions and kits for treating or preventing a neurological condition mediated by a tau-dependent signalling complex in neurons of a subject.
