RT Journal Article SR Electronic T1 Persistent repression of tau in the brain using engineered zinc finger protein transcription factors JF Science Advances JO Sci Adv FD American Association for the Advancement of Science SP eabe1611 DO 10.1126/sciadv.abe1611 VO 7 IS 12 A1 Wegmann, Susanne A1 DeVos, Sarah L. A1 Zeitler, Bryan A1 Marlen, Kimberly A1 Bennett, Rachel E. A1 Perez-Rando, Marta A1 MacKenzie, Danny A1 Yu, Qi A1 Commins, Caitlin A1 Bannon, Riley N. A1 Corjuc, Bianca T. A1 Chase, Alison A1 Diez, Lisa A1 Nguyen, Hoang-Oanh B. A1 Hinkley, Sarah A1 Zhang, Lei A1 Goodwin, Alicia A1 Ledeboer, Annemarie A1 Lam, Stephen A1 Ankoudinova, Irina A1 Tran, Hung A1 Scarlott, Nicholas A1 Amora, Rainier A1 Surosky, Richard A1 Miller, Jeffrey C. A1 Robbins, Ashley B. A1 Rebar, Edward J. A1 Urnov, Fyodor D. A1 Holmes, Michael C. A1 Pooler, Amy M. A1 Riley, Brigit A1 Zhang, H. Steve A1 Hyman, Bradley T. YR 2021 UL http://advances.sciencemag.org/content/7/12/eabe1611.abstract AB Neuronal tau reduction confers resilience against β-amyloid and tau-related neurotoxicity in vitro and in vivo. Here, we introduce a novel translational approach to lower expression of the tau gene MAPT at the transcriptional level using gene-silencing zinc finger protein transcription factors (ZFP-TFs). Following a single administration of adeno-associated virus (AAV), either locally into the hippocampus or intravenously to enable whole-brain transduction, we selectively reduced tau messenger RNA and protein by 50 to 80% out to 11 months, the longest time point studied. Sustained tau lowering was achieved without detectable off-target effects, overt histopathological changes, or molecular alterations. Tau reduction with AAV ZFP-TFs was able to rescue neuronal damage around amyloid plaques in a mouse model of Alzheimer’s disease (APP/PS1 line). The highly specific, durable, and controlled knockdown of endogenous tau makes AAV-delivered ZFP-TFs a promising approach for the treatment of tau-related human brain diseases.