Characterization of the Tau Interactome in Human Brain Reveals Isoform-Dependent Interaction with 14-3-3 Family Proteins.

Despite exhibiting tau phosphorylation similar to Alzheimer's disease (AD), the human fetal brain is remarkably resilient to tau aggregation and toxicity. To identify potential mechanisms for this resilience, we used co-immunoprecipitation (co-IP) with mass spectrometry to characterize the tau interactome in human fetal, adult, and Alzheimer's disease brains. We found significant differences between the tau interactome in fetal and AD brain tissue, with little difference between adult and AD, although these findings are limited by the low throughput and small sample size of these experiments.