【摘要】 NA干涉 (RNAinterference ,RNAi)是一种特异性地导致转录后基因沉默的现象 ,在哺乳动物细胞中小分子干扰RNA双链体 (smallinterferingRNAduplexes ,siRNAduplexes)可以有效地诱导RNAi现象 ,为一些疾病的治疗开辟了新的途径 .针对SARS冠状病毒 (SARScoronavirus ,SARS CoV)中编码 5个主要蛋白质的基因 ,用生物信息学的方法设计了3 48条候选siRNA靶标 .在理论上 ,相应的siRNA双链体能特异地抑制SARS CoV靶基因的表达 ,同时不会影响人体细胞基因的正常表达 ,这为进一步siRNA类药物的实验研究提供了理论基础更多还原

【Abstract】 RNA interference (RNAi) is the process of sequence-specific, post-transcriptional gene silencing in animals and plants, initiated by double-stranded RNA (dsRNA) that is homologous in sequence to the silenced gene. In mammal cells, small interfering RNA (siRNA) duplexes can induce RNAi potently, which may provide a new approach to the therapeutics of certain diseases. Focusing on the five genes which coding five crucial proteins of SARS coronavirus(SARS-CoV) respectively, 348 siRNA candidate targets were obtained following bioinformatic methods. In theory, potent siRNA duplexes specifically suppress expression of their corresponding SARS-CoV target gene, while have no influence on the normal expression of human gene. It would lay a foundation for the further experimental researches on the siRNA-like drug design for the SARS-CoV.更多还原