摘要
RNA干扰(RNAi)是双链RNA分子在mRNA水平上诱发的序列特异性的转录后基因表达沉默,从基因组水平设计针对多个靶基因的RNAi序列,建立RNAi文库进行系统性、大规模的筛选工作是功能基因组学研究的有力工具。目前RNAi文库主要包括质粒(或病毒)文库、siRNA表达盒文库、寡核苷酸文库和随机RNAi文库,已经被成功应用于基因功能鉴别、信号转导途径解析和药物靶标筛选等研究领域。近年来,这一领域发展迅速,就RNAi文库的发展应用以及存在的问题与展望进行了综述。
RNA interference （RNAi） is a process in which double-stranded RNA （dsRNA） induces specific postranscriptional silencing of homologous transcripts. Systematic silencing of genes on a genome-wide scale using RNAi library targeting many thousands of genes provides a powerful research tool in functional genomics. RNAi libraries, which may be derived from plasmids cloning, virus packaging, PCR amplification, chemically synthesis or enzymatic digestion, have been successfully used to identify gene function, dissect signaling pathway and discover drug targets, etc. Promising progresses have been made in this field. The development, application and problems of RNAi library methodology and future prospects were reviewed.
出处
《中国生物工程杂志》
CAS
CSCD
北大核心
2006年第7期84-89,共6页
China Biotechnology
