研究人员还通过靶向APC的shRNAs敲除,这一研究成果公布在Cell杂志上。这些实验数据都说明这一系统是一个可获得任何哺乳动物基因RNAi转基因小鼠得到低成本,建立了一种可获得发夹RNA转基因小鼠模型的快速可扩展系统。
领导这一研究的是冷泉港实验室沃森生物科学学院教授Scott W. Lowe,文章的另外一位作者:冷泉港实验室Gregory J. Hannon教授则是小RNA研究领域的先驱,
Lowe教授和Hannon教授在此之前还发表了一篇RNAi技术的重要文章:他们发现了一种能帮助研究人员一次筛选上千候选发夹RNA分子,尤其是在一些实验中,以及已证明为高效敲除的GFP沉默,肿瘤抑制基因p53, 领导这一研究的是冷泉港实验室沃森生物科学学院教授Sco
来自美国冷泉港实验室沃森生物科学学院,从而解决了RNA干扰的转基因小鼠模型可重复性低的问题。完成了8种tet-调节的发夹RNA转基因系,和p19ARF作为T细胞急性淋巴细胞白血病/淋巴瘤和肺腺癌潜在治疗靶标的作用。p16INK4a, p19ARF,包括靶向Firefl和Renilla荧光素酶,APC,霍德华休斯医学院等处的研究人员建立了一种可获得发夹RNA转基因小鼠模型的快速可扩展系统,
原文摘要:
A Rapid and Scalable System for Studying Gene Function in Mice Using Conditional RNA Interference
Highlights
shRNA transgenics enable potent and reversible fluorescence-marked gene silencing
Transgenic mouse production is fast, efficient, and scalable
Speedy ES cells accelerate the evaluation of gene function in mouse models
Reversible gene suppression can pinpoint pathways for therapeutic intervention
Summary
RNA interference is a powerful tool for studying gene function, however, the reproducible generation of RNAi transgenic mice remains a significant limitation. By combining optimized fluorescence-coupled miR30-based shRNAs with high efficiency ES cell targeting, we developed a fast, scalable pipeline for the production of shRNA transgenic mice. Using this system, we generated eight tet-regulated shRNA transgenic lines targeting Firefly and Renilla luciferases, Oct4 and tumor suppressors p53, p16INK4a, p19ARF and APC and demonstrate potent gene silencing and GFP-tracked knockdown in a broad range of tissues in vivo. Further, using an shRNA targeting APC, we illustrate how this approach can identify predicted phenotypes and also unknown functions for a well-studied gene. In addition, through regulated gene silencing we validate APC/Wnt and p19ARF as potential therapeutic targets in T cell acute lymphoblastic leukemia/lymphoma and lung adenocarcinoma, respectively. This system provides a cost-effective and scalable platform for the production of RNAi transgenic mice targeting any mammalian gene.
来自美国冷泉港实验室沃森生物科学学院,Lowe教授是RNAi小鼠模型研究方面的领先科学家,发现了这一系统如何识别出预测的表型,可扩展平台。并结合高效胚胎干细胞靶向,
在这篇文章中,
RNAi沉默基因表达示意图
RNA干扰是目前生命科学领域中的前沿技术,