GEO series

Gene expression profiling of interferon-beta stimulated cells

GSE14413 Mus musculus Expression profiling by array 6 samples Submitted 2009/01/15 Platform GPL6246

Summary

Cytoplasmic DNA triggers the activation of the innate immune system. While downstream signaling components have been characterized, the DNA sensing components remain largely elusive. We performed a systematic proteomics screen for proteins that associate with DNA, traversed to a screen for IFN-β-induced transcripts. We identified DSIRE (DNA sensor for the IL-1β response, previously called AIM2) as a candidate cytoplasmic sensor. DSIRE showed a marked selectivity for double-stranded DNA. DSIRE can recruit the inflammasome adaptor ASC and gets redistributed to ASC speckles upon coexpression of ASC. RNAi-mediated reduction of DSIRE expression led to an impairment in IL-1β maturation. Reconstitution of unresponsive cells with DSIRE, ASC, caspase 1 and IL-1β showed that DSIRE is sufficient for inflammasome activation. Overall, our data strongly suggest that DSIRE is a cytoplasmic DNA sensor for the inflammasome.

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Direct links to NCBI, no account and no request form: the whole study as GSE14413_RAW.tar, processed values as the series matrix, the supplementary file directory, and per-sample supplementary files for any of the 6 samples.

Whole study · RAW.tar ↓ Series matrix ↓ All supplementary files ↗

Also filed as BioProject PRJNA111687. Searching any of these in the dataset finder brings you back here.

NCBI GEO page ↗ Paper (PMID 19158679) ↗

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