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Function and regulation of let-7 family microRNAs.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology. Umeå University.
2012 (English)In: MicroRNA (Shāriqah, United Arab Emirates), ISSN 2211-5374, Vol. 1, no 1, 34-9 p.Article in journal (Refereed) Published
Abstract [en]

MicroRNAs (miRNAs) are a group of small noncoding RNAs capable of regulating specific gene expression. Let-7 miRNA was first discovered in Caenorhabditis elegans and it is highly conserved in human tissues. The human let- 7 family of miRNA contains 12 members of miRNA. Today, these members have become the most studied miRNAs and they have attracted attention of researchers in various fields, such as development, stem cell biology, aging, and metabolism. Furthermore, there is a large body of evidence linking the loss of let-7 expression and the development of poorly differentiated, aggressive cancers. In addition to the canonical biogenesis pathway, let-7 has been found to be regulated by protein factors, such as RNA binding proteins previously identified as regulators of protein-coding mRNAs. Moreover, the direct interaction between miRNAs has recently been identified as a novel pathway to control let-7 expression. In this review, we discuss the multifaceted roles of let-7 and provide an overview of its regulation at multiple levels.

Place, publisher, year, edition, pages
2012. Vol. 1, no 1, 34-9 p.
National Category
Cell Biology
Identifiers
URN: urn:nbn:se:umu:diva-106963PubMedID: 25048088OAI: oai:DiVA.org:umu-106963DiVA: diva2:845818
Available from: 2015-08-13 Created: 2015-08-13 Last updated: 2017-04-27

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