Unknown,Transcriptomics,Genomics,Proteomics

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Differential gene expression in peripheral blood leukocytes from mice subject to repeated social defeat


ABSTRACT: This study tested the effects of repeated social defeat (RSD) on gene expression in peripheral blood mononuclear cells (PBMC), and examined the extent to which these effects were abrogated by depletion of CD11b+ cells (monocytes). Study Type: Risk prediction Gene expression profiling was carried out on peripheral blood mononuclear cell (PBMC) mRNA samples collected from 18 mice randomized to either 6 cycles of repeated social defeat (RSD, n=9) or to home cage control (HCC, n=9) conditions. PBMC samples were pooled into 3 groups of n=3 samples in each condition, and Illumina Mouse Ref-8 BeadArray assays were performed on approximately 1 million total PBMC and 1 million PBMC from which CD11b+ cells were immunomagnetically depleted by MACS. The primary research questions are 1) whether expression of pro-inflammatory genes is altered by RSD, and 2) whether depletion of CD11b+ cells (monocytes) abrogates these effects.

ORGANISM(S): Mus musculus

SUBMITTER: Steve Cole 

PROVIDER: E-GEOD-47154 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Social stress up-regulates inflammatory gene expression in the leukocyte transcriptome via β-adrenergic induction of myelopoiesis.

Powell Nicole D ND   Sloan Erica K EK   Bailey Michael T MT   Arevalo Jesusa M G JM   Miller Gregory E GE   Chen Edith E   Kobor Michael S MS   Reader Brenda F BF   Sheridan John F JF   Cole Steven W SW  

Proceedings of the National Academy of Sciences of the United States of America 20130923 41


Across a variety of adverse life circumstances, such as social isolation and low socioeconomic status, mammalian immune cells have been found to show a conserved transcriptional response to adversity (CTRA) involving increased expression of proinflammatory genes. The present study examines whether such effects might stem in part from the selective up-regulation of a subpopulation of immature proinflammatory monocytes (Ly-6c(high) in mice, CD16(-) in humans) within the circulating leukocyte pool.  ...[more]

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