Transcriptomics

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Expression data from human memory CD4 T-cells stimulated with autologous monocytes pulsed with HCMV


ABSTRACT: The present study reports an unbiased analysis of the genetic profile and regulation of NKG2D expressing CD4 T-cells.An Affymetrix microarray analysis was used to explore the genetic profile of NKG2D+ versus NKG2D- CD4 T-cells. The genetic profile was studied by single gene analysis and gene set enrichment analysis. I found that several immune regulatory receptors was regulated differently in NKG2D+ versus NKG2D- CD4 T-cells. Futhermore, I found that NKG2D+ CD4 T-cells display a genetic profile of cytotoxic T-cells. The gene set enrichment analysis revealed a change in 19 processes, including ARF GTPase activator activity; RNA splicing; Signal transduction; Interspecies interaction between organisms; Regulation of ARF GTPase activity; Cell motility; Mitosis; Cell cycle; Anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process; Induction of apoptosis by extracellular signals; Negative regulation of apoptosis; mRNA export from nucleus; Positive regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle; Cell division; Protein polymerization; Spliceosome assembly; Microtubule-based movement; Immune response; mRNA processing. Human CD4 T-cells were isolated from buffy coat by anti-CD4 conjugated magnetic beads. Memory CD4 T-cells were sorted, labeled with CFSE and stimulated with autologous monocytes pulsed with HCMV. HCMV stimulated CD4 T-cells were sorted as CFSE-NKG2D+ or CFSE-NKG2D- and processed for microarray analysis.

ORGANISM(S): Homo sapiens  

SUBMITTER: Helle Jensen  

PROVIDER: E-GEOD-33670 | ArrayExpress | 2012-08-14

SECONDARY ACCESSION(S): GSE33670PRJNA148731

REPOSITORIES: GEO, ArrayExpress

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Publications

Regulation and gene expression profiling of NKG2D positive human cytomegalovirus-primed CD4+ T-cells.

Jensen Helle H   Folkersen Lasse L   Skov Søren S  

PloS one 20120801 8


NKG2D is a stimulatory receptor expressed by natural killer (NK) cells, CD8(+) T-cells, and γδ T-cells. NKG2D expression is normally absent from CD4(+) T-cells, however recently a subset of NKG2D(+) CD4(+) T-cells has been found, which is specific for human cytomegalovirus (HCMV). This particular subset of HCMV-specific NKG2D(+) CD4(+) T-cells possesses effector-like functions, thus resembling the subsets of NKG2D(+) CD4(+) T-cells found in other chronic inflammations. However, the precise mecha  ...[more]

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