GeneSet Information

Tier I GS87486 • Table 1: Genes that were identified as being differentially regulated in the rat striatum following cocaine self-administration. (Whole Table) [DRG]

DESCRIPTION:

Chronic cocaine - Cocaine vs. Saline DNA microarray Change in gene expression Five rats were trained to self-administer cocaine infusions (1.5 mg / kg) during daily sessions. Once rats acquired cocaine self-administration (five consecutive sessions in which rats earned all 20 infusions that were available), cocaine infusions (1.5 mg / kg) were available in discrete 10-min trials 24-hr per day (4 trials / hr). Each discrete trial was initiated by the extension of the left lever into the chamber. Each response on this lever during a 10-minute discrete trial produced an infu Genespring 7.0 A gene was considered to be expressed if its signal intensity was a minimum of twice the background in at least four of the five replicates. Upregulated genes were defined as having an average expression ratio of >1.4, and the downregulated genes were defined as having an average expression ratio of <0.7. A gene was considered to be significantly regulated if the t-test p-value was < 0.05 with the false discovery rate (FDR) as the multiple testing correction. (NIF Method ID 182)

LABEL:

Chronic cocaine - Cocaine vs. Saline

SCORE TYPE:

P-Value

DATE ADDED:

2010-11-03

DATE UPDATED:

2021-07-20

SPECIES:

AUTHORS:

Lynch WJ, Girgenti MJ, Breslin FJ, Newton SS, Taylor JR

TITLE:

Gene profiling the response to repeated cocaine self-administration in dorsal striatum: a focus on circadian genes.

JOURNAL:

Brain research Jun 2008, Vol 1213, pp. 166-77

ABSTRACT:

Alterations in gene expression in the dorsal striatum caused by chronic cocaine exposure have been implicated in the long-term behavioral changes associated with cocaine addiction. To gain further insight into the molecular alterations that occur as a result of cocaine self-administration, we conducted a microarray analysis of gene expression followed by bioinformatic gene network analysis that allowed us to identify adaptations at the level of gene expression as well as into interconnected networks. Changes in gene expression were examined in the dorsal striatum of rats 1 day after they had self-administered cocaine for 7 days under a 24-h access, discrete trial paradigm (averaging 98 mg/kg/day). Here we report the regulation of the circadian genes Clock, Bmal1, Cryptochrome1, Period2, as well as several genes that are regulated by/associated with the circadian system (i.e., early growth response 1, dynorphin). We also observed regulation of other relevant genes (i.e., Nur77, beta catenin). These changes were then linked to curated pathways and formulated networks which identified circadian rhythm processes as affected by cocaine self-administration. These data strongly suggest involvement of circadian-associated genes in the brain\'s response to cocaine and may contribute to an understanding of addictive behavior including disruptions in sleep and circadian rhythmicity. PUBMED: 18452895
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Social Control, Formal (D012926)
Self Administration (D012646)
Animals (D000818)
Behavior (D001519)
Corpus Striatum (D003342)
Behavior, Addictive (D016739)
Circadian Rhythm (D002940)
Gene Regulatory Networks (D053263)
Gene Expression Profiling (D020869)
Comprehension (D032882)
Research Report (D058028)
Behavior, Animal (D001522)
Periodicity (D010507)
Microarray Analysis (D046228)
Dopamine Uptake Inhibitors (D018765)
Time Factors (D013997)
Cocaine-Related Disorders (D019970)
Oligonucleotide Array Sequence Analysis (D020411)
Cocaine (D003042)
Genes, vif (D016341)
Diagnosis-Related Groups (D003953)
Rats, Sprague-Dawley (D017207)
dorsal striatum (MA:0002971)
addiction (MP:0002555)
response to cocaine (GO:0042220)
circadian rhythm (GO:0007623)
gene expression (GO:0010467)
response to cocaine trait (VT:0010718)
response to addictive substance trait (VT:0010488)
response to xenobiotic stimulus trait (VT:0010487)
organism trait (VT:0010454)

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