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FosB-regulated gene expression in venral hippocampo-accumbal projection neurons

ABSTRACT: We examined here the regulation of gene expression in ventral hippocampus neurons that project to nucleus accumbens (vHPC-NAc) by the transcription factor, ΔFosB. The activity of this circuit is critical to stress-induced social withdrawal. ΔFosB regulates the physiology and behavior of this circuit to produce resilience. Circuit-specific translating ribosomal affinity purification (TRAP) was conducted followed by RNASeq. A strain of floxed Fosb mice (the gene that encodes ΔFosB) was crossed with a ribosomal L10-GFP fusion protein line (Rosa26). To target vHPC-NAc neurons, a retrograde recombinant HSV-Cre was injected into NAc to retrogradely drive expression of GFP and knockout the Fosb gene in vHPC-NAc. Bilateral biopsy punches of vHPC containing GFP-labeled projections were collected, pooled, and processed by TRAP followed by 3rd-generation sequencing of actively translating mRNA. We have now identified Fosb-regulated gene expression in a specific hippocampal-to-accumbens circuit that is important for resilience to stress-induced social withdrawal.

ORGANISM(S): Mus musculus

PROVIDER: GSE137283 | GEO | 2020/06/30

REPOSITORIES: GEO

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Gene expression profiling of inputs to the mesolimbic dopamine circuit

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