Takeshita Fumitaka, Hokaiwado Naomi, Honma Kimi, Banas Agnieszka, Ochiya Takahiro
Section for Studies on Metastasis, National Cancer Center Research Institute, Tokyo, Japan.
Methods Mol Biol. 2009;487:83-92. doi: 10.1007/978-1-60327-547-7_4.
RNA interference (RNAi) is a relatively new found phenomenon of posttranscriptional gene silencing to regulate the expression of multiple genes involved in a wide range of biological processes. The gene-silencing technology via RNAi has also been developed into a commonly anti-gene method. Furthermore, in vivo data indicate that small interfering RNAs (siRNAs) may be used to treat human diseases. However, the most challenging issue to a successful in vivo application is the development of a delivery system that can transport siRNA molecules into the tissues and/or the cells of interest. Also, the evaluation of siRNA potency in vivo is central for the selection of therapeutic siRNAs. In this chapter, the effects of atelocollagen-delivered siRNAs in live animals were monitored using bioluminescence imaging.
RNA干扰(RNAi)是一种相对较新发现的转录后基因沉默现象,用于调节参与广泛生物学过程的多个基因的表达。通过RNAi的基因沉默技术也已发展成为一种常用的抗基因方法。此外,体内数据表明,小干扰RNA(siRNA)可用于治疗人类疾病。然而,成功进行体内应用最具挑战性的问题是开发一种能够将siRNA分子转运到目标组织和/或细胞中的递送系统。此外,体内siRNA效力的评估对于治疗性siRNA的选择至关重要。在本章中,使用生物发光成像监测了脱细胞胶原蛋白递送的siRNA在活体动物中的作用。