MicroRNAs Can Regulate Human APP Levels

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MicroRNAs Can Regulate Human APP Levels

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Title: MicroRNAs Can Regulate Human APP Levels
Author: Hoang, David; Ansaloni, Sara; Huang, Qihong; Lee, Jeremy C; Saunders, Aleister J; Patel, Neha; Miller, Nathan; Rogers, Jack Timothy

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Citation: Patel, Neha, David Hoang, Nathan Miller, Sara Ansaloni, Qihong Huang, Jack T Rogers, Jeremy C Lee, and Aleister J Saunders. 2008. MicroRNAs can regulate human APP levels. Molecular Neurodegeneration 3:10.
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Abstract: A number of studies have shown that increased APP levels, resulting from either a genomic locus duplication or alteration in APP regulatory sequences, can lead to development of early-onset dementias, including Alzheimer's disease (AD). Therefore, understanding how APP levels are regulated could provide valuable insight into the genetic basis of AD and illuminate novel therapeutic avenues for AD. Here we test the hypothesis that APP protein levels can be regulated by miRNAs, evolutionarily conserved small noncoding RNA molecules that play an important role in regulating gene expression. Utilizing human cell lines, we demonstrate that miRNAs hsa-mir-106a and hsa-mir-520c bind to their predicted target sequences in the APP 3'UTR and negatively regulate reporter gene expression. Over-expression of these miRNAs, but not control miRNAs, results in translational repression of APP mRNA and significantly reduces APP protein levels. These results are the first to demonstrate that levels of human APP can be regulated by miRNAs.
Published Version: doi:10.1186/1750-1326-3-10
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2529281/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4931119
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