Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from unactivated vs. activated PBMCs


ABSTRACT: Long-lasting activation of T cells requires up-regulation of many genes, for example of transcription factors, cytoskeletal proteins and cell surface proteins including ion channels. An increase of ion channel density at the cell surface reflects the needs to manage increased Ca2+ influx into the activated T cell. Using oligonucleotide-based arrays we have surveyed changes in ion channel mRNA expression that occur upon T cell activation. We used Affymetrix Analysis to confirm our data achieved by self-designed glass array analysis. We isolated PBMCs from blood of healthy donors and divided those into two parts. One was activated for 72 hr by adding PHA-L whereas the other part was incubated in the same way but not stimulated.

ORGANISM(S): Homo sapiens

SUBMITTER: Christoph Ogrodowczyk 

PROVIDER: E-GEOD-21837 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

A truncation variant of the cation channel P2RX5 is upregulated during T cell activation.

Abramowski Pierre P   Ogrodowczyk Christoph C   Martin Roland R   Pongs Olaf O  

PloS one 20140902 9


Members of the P2X family of ligand-gated cation channels (P2RX) are expressed by various cell types including neurons, smooth- and cardiac muscle cells, and leukocytes. The channels mediate signalling in response to extracellular ATP. Seven subunit isoforms (P2RX1-P2RX7) have been identified and these can assemble as homo- and heterotrimeric molecules. In humans, P2RX5 exists as a natural deletion mutant lacking amino acids 328-349 of exon 10, which are part of transmembrane (TM) 2 and pre-TM2  ...[more]

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