GeneSet Information

Tier III GS14890 • Downregulated genes in five combined brain regions (Amygdala, Hippocampus, Nucleus Accumbens, Pre Frontal Cortex and Ventral Tegmental Area) in C57BL/6J mice

DESCRIPTION:

This gene set comprises 25 genes that are downregulated within each of five brain regions (amygdale (Amyg), hippocampus (HP), nucleus accumbens (NA), prefrontal cortex (PFC) and ventral tegmental area (VTA)) when chronic nicotine treatment is administered to C57BL/6J mice only. Background: Studies involving use of chronic nicotine treatment identify unique nicotine addiction genes and the biological processes they mediate in C3H/HeJ and C57BL/6J mice. Results are obtained using gene expression profiling via cDNA microarrays and gene ontology.

LABEL:

DwnReg Nicotine C57BL/6J

SCORE TYPE:

Binary

DATE ADDED:

2009-01-20

DATE UPDATED:

2020-05-06

SPECIES:

AUTHORS:

Wang J, Gutala R, Hwang YY, Kim JM, Konu O, Ma JZ, Li MD

TITLE:

Strain- and region-specific gene expression profiles in mouse brain in response to chronic nicotine treatment.

JOURNAL:

Genes, brain, and behavior Feb 2008, Vol 7, pp. 78-87

ABSTRACT:

A pathway-focused complementary DNA microarray and gene ontology analysis were used to investigate gene expression profiles in the amygdala, hippocampus, nucleus accumbens, prefrontal cortex (PFC) and ventral tegmental area of C3H/HeJ and C57BL/6J mice receiving nicotine in drinking water (100 mug/ml in 2% saccharin for 2 weeks). A balanced experimental design and rigorous statistical analysis have led to the identification of 3.5-22.1% and 4.1-14.3% of the 638 sequence-verified genes as significantly modulated in the aforementioned brain regions of the C3H/HeJ and C57BL/6J strains, respectively. Comparisons of differential expression among brain tissues showed that only a small number of genes were altered in multiple brain regions, suggesting presence of a brain region-specific transcriptional response to nicotine. Subsequent principal component analysis and Expression Analysis Systematic Explorer analysis showed significant enrichment of biological processes both in C3H/HeJ and C57BL/6J mice, i.e. cell cycle/proliferation, organogenesis and transmission of nerve impulse. Finally, we verified the observed changes in expression using real-time reverse transcriptase polymerase chain reaction for six representative genes in the PFC region, providing an independent replication of our microarray results. Together, this report represents the first comprehensive gene expression profiling investigation of the changes caused by nicotine in brain tissues of the two mouse strains known to exhibit differential behavioral and physiological responses to nicotine. PUBMED: 17504244
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Annotation Information



Brain (D001921)
Mice, Inbred C3H (D008809)
Drinking (D004326)
Animals (D000818)
Species Specificity (D013045)
DNA (D004247)
Principal Component Analysis (D025341)
Polymerase Chain Reaction (D016133)
Mice (D051379)
Gene Expression Profiling (D020869)
Research Report (D058028)
Biological Processes (D055694)
Behavior, Animal (D001522)
Water (D014867)
Therapeutics (D013812)
Neurons (D009474)
Reverse Transcriptase Polymerase Chain Reaction (D020133)
Amygdala (D000679)
Prefrontal Cortex (D017397)
Tissues (D014024)
Nucleus Accumbens (D009714)
RNA-Directed DNA Polymerase (D012194)
Ventral Tegmental Area (D017557)
Oligonucleotide Array Sequence Analysis (D020411)
Mice, Inbred C57BL (D008810)
Cells (D002477)
Transcription, Genetic (D014158)
DNA-Directed RNA Polymerases (D012321)
Action Potentials (D000200)
DNA, Complementary (D018076)
Identification (Psychology) (D007062)
Saccharin (D012439)
Set (Psychology) (D012718)
Cell Cycle (D002453)
Cell Division (D002455)
Research Design (D012107)
Synaptic Transmission (D009435)
Nicotine (D009538)
Organogenesis (D038081)
Hippocampus (D006624)
amygdala (MA:0000887)
nerve (MA:0000217)
brain (MA:0000168)
hippocampus (MA:0000191)
addiction (MP:0002555)
cell (GO:0005623)
transmission of nerve impulse (GO:0019226)
nucleus (GO:0005634)
organ development (GO:0048513)
response to nicotine (GO:0035094)
cell cycle (GO:0007049)
G/U mismatch-specific uracil-DNA glycosylase activity (GO:0043739)
gene expression (GO:0010467)

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Supported by NIH R01 AA18776 jointly funded by NIAAA and NIDA, and JAX Center for Precision Genetics NIH U54 OD 020351