Alzheimer's disease risk gene <i>BIN1</i> induces Tau-dependent network hyperexcitability.

ABSTRACT: Genome-wide association studies identified the BIN1 locus as a leading modulator of genetic risk in Alzheimer's disease (AD). One limitation in understanding BIN1's contribution to AD is its unknown function in the brain. AD-associated BIN1 variants are generally noncoding and likely change expression. Here, we determined the effects of increasing expression of the major neuronal isoform of human BIN1 in cultured rat hippocampal neurons. Higher BIN1 induced network hyperexcitability on multielectrode arrays, increased frequency of synaptic transmission, and elevated calcium transients, indicating that increasing BIN1 drives greater neuronal activity. In exploring the mechanism of these effects on neuronal physiology, we found that BIN1 interacted with L-type voltage-ga

SUBMITTER: Voskobiynyk Y 

PROVIDER: S-EPMC7392604 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature