Journal
NATURE COMMUNICATIONS
Volume 5, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms5335
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Funding
- Telethon [GGP11149]
- Epigen
- Parent Project Italia
- IIT 'SEED'
- FIRB
- PRIN
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While the physiologic functions of the RNA-binding protein FUS still await thorough characterization, the pathonegetic role of FUS mutations in amyotrophic lateral sclerosis (ALS) is clearly established. Here we find that a human FUS mutation that leads to increased protein expression, and was identified in two ALS patients with severe outcome, maps to the seed sequence recognized by miR-141 and miR-200a in the 3'-UTR of FUS. We demonstrate that FUS and these microRNAs are linked by a feed-forward regulatory loop where FUS upregulates miR-141/200a, which in turn impact FUS protein synthesis. We also show that Zeb1, a target of miR-141/200a and transcriptional repressor of these two microRNAs, is part of the circuitry and reinforces it. Our results reveal a possible correlation between deregulation of this regulatory circuit and ALS pathogenesis, and open interesting perspectives in the treatment of these mutations through ad hoc-modified microRNAs.
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