Activity-Dependent Regulation of Alternative Cleavage and Polyadenylation (APA) During Hippocampal Long-Term Potentiation (LTP) [RNA-Seq]

This study was aimed at elucidating the mechanisms underlying activity-dependent gene regulation during long-term potentiation (LTP) of mouse hippocampal CA3-CA1 synapses. Transcriptome analysis allowed to identify changes in gene expression and alternative splicing induced 1 hour and 3 hours after LTP induction. We performed RNA-sequencing of acute hippocampal slices 1 hour and 3 hours after LTP induction, and of time-matched control slices. Hippocampal slices were prepared from 2-3 month old C57BL/6 wild-type mice, the dentate gyrus was trimmed, and the slices were placed in interface chambers to recover for 2 hours with continuous ACSF perfusion. From the same animal, half of the mini-slices were used for LTP induction (using a pharmacological protocol, cLTP) and the remaining slices were treated with a DMSO vehicle solution as controls. We sequenced triplicates (samples 1-3) of controls and cLTP treated slices for the 1 hour and 3 hours time-point.