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Accession IconSRP010483

The human pancreatic islet transcriptome: impact of pro-inflammatory cytokines

Organism Icon Homo sapiens
Sample Icon 10 Downloadable Samples
Technology Badge IconIllumina Genome Analyzer II

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Description
We have used RNA-seq to identify transcripts, including splice variants, expressed in human islets of Langerhans under control condition or following exposure to the pro-inflammatory cytokines interleukin-1ß (IL-1ß) and interferon-? (IFN-?). A total of 29,776 transcripts were identified as expressed in human islets. Expression of around 20% of these transcripts was modified by pro-inflammatory cytokines, including apoptosis- and inflammation-related genes. Chemokines were among the transcripts most modified by cytokines. Interestingly, 35% of the genes expressed in human islets undergo alternative splicing as annotated in RefSeq, and cytokines caused substantial changes in spliced transcripts. Nova1, previously considered a brain-specific regulator of mRNA splicing, is expressed in islets. 25/41 of the candidate genes for type 1 diabetes are expressed in islets, and cytokines modified expression of several of these transcripts. Overall design: 5 human islet of Langerhans preparations examined under 2 conditions (control and cytokine treatment)
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