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0引言微小RNA(MicroRNA,miRNA)是一类普遍存在于细胞中的长度为18～25个核苷酸的非编码小分子RNA。miRNA来源于内源转录本,为单链RNA分子,主要作用于靶基因3′非翻译区(un-),引起靶的降解或
0 Introduction MicroRNAs (miRNAs) are a class of non-coding small RNAs that are ubiquitous in cells and are 18-25 nucleotides in length. MiRNAs are derived from endogenous transcripts and are single-stranded RNA molecules that act primarily on the 3 ’untranslated region of the target gene, causing the target to degrade or