Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression

R. C. Shelton, J. Claiborne, M. Sidoryk-Wegrzynowicz, R. Reddy, M. Aschner, D. A. Lewis, Karoly Mirnics

Research output: Contribution to journalArticle

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Abstract

The etiology of major depression (MDD), a common and complex disorder, remains obscure. Gene expression profiling was conducted on post-mortem brain tissue samples from Brodmann Area 10 (BA10) in the prefrontal cortex from psychotropic drug-free persons with a history of MDD and age, gender, and post-mortem interval-matched normal controls (n14 pairs of subjects). Microarray analysis was conducted using the Affymetrix Exon 1.0 ST arrays. A set of differential expression changes was determined by dual-fold change-probability criteria (average log ratios0.585 equivalent to a 1.5-fold difference in either direction, P0.01), whereas molecular pathways of interest were evaluated using Gene Set Enrichment Analysis software. The results strongly implicate increased apoptotic stress in the samples from the MDD group. Three anti-apoptotic factors, Y-box-binding protein 1, caspase-1 dominant-negative inhibitor pseudo-ICE, and the putative apoptosis inhibitor FKGS2, were over-expressed. Gene set analysis suggested up-regulation of a variety of pro- and anti-inflammatory cytokines, including interleukin 1α (IL-1α), IL-2, IL-3, IL-5, IL-8, IL-9, IL-10, IL-12A, IL-13, IL-15, IL-18, interferon gamma (IFNγ), and lymphotoxin α (TNF superfamily member 1). The genes showing reduced expression included metallothionein 1M (MT1M), a zinc-binding protein with a significant function in the modulation of oxidative stress. The results of this study indicate that post-mortem brain tissue samples from BA10, a region that is involved in reward-related behavior, show evidence of local inflammatory, apoptotic, and oxidative stress in MDD.

Original languageEnglish (US)
Pages (from-to)751-762
Number of pages12
JournalMolecular Psychiatry
Volume16
Issue number7
DOIs
StatePublished - Jul 1 2011

Fingerprint

Frontal Lobe
Lymphotoxin-alpha
Depression
Apoptosis
Inflammation
Gene Expression
Y-Box-Binding Protein 1
Oxidative Stress
Interleukin-9
Genes
Interleukin-15
Caspase 1
Interleukin-18
Interleukin-13
Metallothionein
Interleukin-3
Psychotropic Drugs
Interleukin-5
Brain
Gene Expression Profiling

Keywords

  • apoptosis
  • cytokines
  • inflammation
  • major depression
  • microarray
  • oxidative stress

ASJC Scopus subject areas

  • Molecular Biology
  • Psychiatry and Mental health
  • Cellular and Molecular Neuroscience

Cite this

Shelton, R. C., Claiborne, J., Sidoryk-Wegrzynowicz, M., Reddy, R., Aschner, M., Lewis, D. A., & Mirnics, K. (2011). Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression. Molecular Psychiatry, 16(7), 751-762. https://doi.org/10.1038/mp.2010.52

Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression. / Shelton, R. C.; Claiborne, J.; Sidoryk-Wegrzynowicz, M.; Reddy, R.; Aschner, M.; Lewis, D. A.; Mirnics, Karoly.

In: Molecular Psychiatry, Vol. 16, No. 7, 01.07.2011, p. 751-762.

Research output: Contribution to journalArticle

Shelton, RC, Claiborne, J, Sidoryk-Wegrzynowicz, M, Reddy, R, Aschner, M, Lewis, DA & Mirnics, K 2011, 'Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression', Molecular Psychiatry, vol. 16, no. 7, pp. 751-762. https://doi.org/10.1038/mp.2010.52
Shelton RC, Claiborne J, Sidoryk-Wegrzynowicz M, Reddy R, Aschner M, Lewis DA et al. Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression. Molecular Psychiatry. 2011 Jul 1;16(7):751-762. https://doi.org/10.1038/mp.2010.52
Shelton, R. C. ; Claiborne, J. ; Sidoryk-Wegrzynowicz, M. ; Reddy, R. ; Aschner, M. ; Lewis, D. A. ; Mirnics, Karoly. / Altered expression of genes involved in inflammation and apoptosis in frontal cortex in major depression. In: Molecular Psychiatry. 2011 ; Vol. 16, No. 7. pp. 751-762.
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