作者: J. Elm n
DOI: 10.1093/NAR/GKI193
关键词: Functional genomics 、 Cell biology 、 Molecular biology 、 RNA interference 、 Oligonucleotide 、 Locked nucleic acid 、 Small interfering RNA 、 RNA Stability 、 RNA 、 Biology 、 Gene silencing
摘要: Therapeutic application of the recently discovered small interfering RNA (siRNA) gene silencing phenomenon will be dependent on improvements in molecule bio-stability, specificity and delivery. To address these issues, we have systematically modified siRNA with synthetic RNA-like high affinity nucleotide analogue, Locked Nucleic Acid (LNA). Here, show that incorporation LNA substantially enhances serum half-life siRNA's, which is a key requirement for therapeutic use. Moreover, provide evidence compatible intracellular machinery can used to reduce undesired, sequence-related off-target effects. LNA-modified siRNAs targeting emerging disease SARS, improved efficiency over unmodified certain motifs. The results from this study emphasize LNA's promise converting functional genomics technology platform.