Cell-type specific transcriptional adaptations of nucleus accumbens interneurons to amphetamine.

Cell-type specific transcriptional adaptations of nucleus accumbens interneurons to amphetamine.
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DOI:
10.1038/s41380-022-01466-1
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发表时间:
2023-08
影响因子:
11
通讯作者:
West, Anne E.
West, Anne E.
中科院分区:
医学1区
文献类型:
--
作者:
Gallegos, David A.;Minto, Melyssa;Liu, Fang;Hazlett, Mariah F.;Yousefzadeh, S. Aryana;Bartelt, Luke C.;West, Anne E.

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Parvalbumin-expressing (PV+) interneurons of the nucleus accumbens (NAc) play an essential role in the addictive-like behaviors induced by psychostimulant exposure. To identify molecular mechanisms of PV+ neuron plasticity, we isolated interneuron nuclei from the NAc of male and female mice following acute or repeated exposure to amphetamine (AMPH) and sequenced for cell type-specific RNA expression and chromatin accessibility. AMPH regulated the transcription of hundreds of genes in PV+ interneurons, and this program was largely distinct from that regulated in other NAc GABAergic neurons. Chromatin accessibility at enhancers predicted cell-type specific gene regulation, identifying transcriptional mechanisms of differential AMPH responses. Finally, we assessed expression of PV-enriched, AMPH-regulated genes in an Mecp2 mutant mouse strain that shows heightened behavioral sensitivity to psychostimulants to explore the functional importance of this transcriptional program. Together these data provide novel insight into the cell-type specific programs of transcriptional plasticity in NAc neurons that underlie addictive-like behaviors.
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