DESCRIPTION:

7 genes differentially expressed in the 11-week old C57BL/6J male mouse dorsal striatum following oxycodone self-administration based on RNA-seq data. Values presented are p-adjusted values. Data were taken from Table 2. GEO accession: GSE113948.

LABEL:

Mouse dorsal striatum oxcyodone SA

SCORE TYPE:

Q-Value

DATE ADDED:

2021-06-09

DATE UPDATED:

2024-04-25

SPECIES:

AUTHORS:

Yong Zhang, Yupu Liang, Matthew Randesi, Vadim Yuferov, Connie Zhao, Mary Jeanne Kreek

TITLE:

Chronic Oxycodone Self-administration Altered Reward-related Genes in the Ventral and Dorsal Striatum of C57BL/6J Mice: An RNA-seq Analysis.

JOURNAL:

Neuroscience 11 2018, Vol 393, pp. 333-349

ABSTRACT:

Prescription opioid abuse, for example of oxycodone, is a pressing public health issue. This study focuses on how chronic oxycodone self-administration (SA) affects the reward pathways in the mouse brain. In this study, we tested the hypothesis that the expression of reward-related genes in the ventral and dorsal striatum, areas involved in different aspects of opioid addiction models, was altered within 1 h after chronic oxycodone SA, using transcriptome-wide sequencing (RNA-seq). Based on results from earlier human genetic and rodent preclinical studies, we focused on a set of genes that may be associated with the development of addictive diseases and the rewarding effect of drugs of abuse, primarily in the opioid, stress response and classical neurotransmitter systems. We found that 32 transcripts in the ventral striatum, and 7 in the dorsal striatum, were altered significantly in adult mice that had self-administered oxycodone (n = 5) for 14 consecutive days (4 h/day) compared with yoked saline controls (n = 5). The following 5 genes in the ventral striatum showed experiment-wise significant changes: proopiomelanocortin (Pomc) and serotonin 5-HT-2A receptor (Htr2a) were upregulated; serotonin receptor 7 (Htr7), galanin receptor1 (Galr1) and glycine receptor 1 (Glra1) were downregulated. Some genes detected by RNA-seq were confirmed by quantitative polymerase chain reaction (qPCR). Conclusion: A RNA-seq study shows that chronic oxycodone SA alters the expression of several reward-related genes in the dorsal and ventral striatum. These results suggest potential mechanisms underlying neuronal adaptation to chronic oxycodone self-exposure, of relevance to our mechanistic understanding of prescription opioid abuse. PUBMED: 30059705
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