Journal
CELL DEATH AND DIFFERENTIATION
Volume 18, Issue 9, Pages 1434-1440Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/cdd.2011.20
Keywords
Wig-1; p53; AU-rich elements; mRNA regulation
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Funding
- Swedish Cancer Society (Cancerfonden)
- Swedish Medical Research Council (VR)
- Konung Gustaf V Jubilee Fund
- Karolinska Institutet
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Wig-1 is a transcriptional target of the tumor suppressor p53 and encodes an unusual zinc-finger protein involved in post-transcriptional gene regulation. Wig-1 is expressed in all cell types investigated so far, with the highest levels in the brain, and is enriched in stem cells as compared with more differentiated cells of the same lineage. Wig-1 binds to both long double-stranded (ds) RNA and short microRNA-like dsRNA. We have shown that Wig-1 acts in a positive feedback loop that stabilizes p53 mRNA through an AU-rich element (ARE) in the p53 3'untranslated region. Our preliminary data indicate a more general effect of Wig-1 on ARE-containing mRNA. Here we shall summarize current knowledge about Wig-1 and discuss possible implications on p53 function and other cellular processes. Cell Death and Differentiation (2011) 18, 1434-1440; doi:10.1038/cdd.2011.20; published online 11 March 2011
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