{"title":"The liver-specific microRNA miR-122: biology and therapeutic potential.","authors":"Witold Filipowicz, Helge Grosshans","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>MicroRNAs (miRNAs) are small noncoding RNAs that regulate the expression of a large fraction of genes in animals, plants, and protozoa. miRNA-mediated gene repression occurs posttranscriptionally, generally by base-pairing to the 3'-untranslated regions of target mRNAs, which inhibits protein synthesis and destabilizes the mRNA. In this chapter, we discuss the biological functions of miR-122, a highly abundant, liver-specific miRNA. We will review how studies of miR-122 helped to establish important new paradigms of miRNA-mediated regulation, as well as identifying miR-122 as a factor implicated in important human diseases, including cancer and hepatitis C. We discuss antisense strategies targeting miR-122 as a potential therapeutic approach to treat hepatitis C and possibly other diseases.</p>","PeriodicalId":20603,"journal":{"name":"Progress in drug research. Fortschritte der Arzneimittelforschung. Progres des recherches pharmaceutiques","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in drug research. Fortschritte der Arzneimittelforschung. Progres des recherches pharmaceutiques","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that regulate the expression of a large fraction of genes in animals, plants, and protozoa. miRNA-mediated gene repression occurs posttranscriptionally, generally by base-pairing to the 3'-untranslated regions of target mRNAs, which inhibits protein synthesis and destabilizes the mRNA. In this chapter, we discuss the biological functions of miR-122, a highly abundant, liver-specific miRNA. We will review how studies of miR-122 helped to establish important new paradigms of miRNA-mediated regulation, as well as identifying miR-122 as a factor implicated in important human diseases, including cancer and hepatitis C. We discuss antisense strategies targeting miR-122 as a potential therapeutic approach to treat hepatitis C and possibly other diseases.
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