Transcriptomics

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ASO-mediated RNA Suppression through Targeted Epigenetic Reprogramming of the Hdac2 Gene


ABSTRACT: We elicited ASO-mediated knockdown of mRNAs in the nervous system by targeting the memory-repressor gene Histone deacetylase 2 (Hdac2) in vitro and in vivo. We observed that an Hdac2-targeted ASO not only triggered a reduction in mRNA levels, but also a direct transcriptional suppression of the Hdac2 gene in neurons in vitro. In further in vivo studies, we observed that a single dose of the Hdac2-targeted ASO delivered by intracerebroventricular injection into the central nervous system (CNS) achieved steady-state diminution of Hdac2 mRNA levels that lasted more than 6 months in vivo. Knockdown of this factor resulted in memory enhancement. ASO administration also caused a prolonged alteration of steady-state levels of a set of known memory-associated mRNAs and triggered secondary changes in the epigenome at sites outside of the primary target gene.

ORGANISM(S): Mus musculus

PROVIDER: GSE124726 | GEO | 2020/02/21

REPOSITORIES: GEO

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