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| 1 | Micromanaging cardiac regeneration:Targeted delivery of micro RNAs for cardiac repair and regeneration显示文摘The loss of cardiomyocytes during injury and disease can result in heart failure and sudden death, while the adult heart has a limited capacity for endogenous regeneration and repair. Current stem cell-based regenerative medicine approaches modestly improve cardiomyocyte survival, but offer neglectable cardiomyogenesis. This has prompted the need for methodological developments that crease de novo cardiomyocytes. Current insights in cardiac development on the processes and regulatory mechanisms in embryonic cardiomyocyte differentiation provide a basis to therapeutically induce these pathways to generate new cardiomyocytes. Here, we discuss the current knowledge on embryonic cardiomyocyte differentiation and the implementation of this knowledge in state-ofthe-art protocols to the direct reprogramming of cardiac fibroblasts into de novo cardiomyocytes in vitro and in vivo with an emphasis on micro RNA-mediated reprogramming. Additionally, we discuss current advances on state-of-theart targeted drug delivery systems that can be employed to deliver these micro RNAs to the damaged cardiac tissue. Together, the advances in our understanding of cardiac development, recent advances in micro RNAbased therapeutics, and innovative drug delivery systems, highlight exciting opportunities for effective therapies for myocardial infarction and heart failure. | Jan AAM Kamps Guido Krenning | 2016 | World Journal of Cardiology2016，8，2： | 6 |
| 2 | 靶向猪ATGL基因的miRNA预测及鉴定显示文摘本试验旨在初步筛选出调控猪脂肪甘油三酯脂肪酶基因(ATGL)的miRNA。利用生物信息学分析预测10条靶向ATGL基因的猪miRNAs,然后通过装载含猪ATGL基因3′UTR序列来构建pMIR-Luc报告基因载体,以及通过装载含反向miRNA种子区对应的3′UTR序列来构建3个突变载体作为阴性对照,以pRL-TK载体作为内参,与候选miRNA模拟物共转染HEK 293T细胞,最终利用双荧光素酶报告基因法来检测荧光素酶活性。试验成功构建了含猪ATGL基因3′UTR序列的重组载体pMIR-ATGL-3′UTR,双荧光素酶报告基因试验显示sscmiR-769-3p、ssc-miR-1343、ssc-miR-7137-3p、ssc-miR-671-5p、ssc-miR-149能下调293T细胞中pMIR-ATGL-3′UTR的荧光素酶活性,而点突变试验证实了ssc-miR-1343与ssc-miR-7137-3p能通过与猪ATGL基因3′UTR上预测的种子区结合下调荧光素酶活性。结果表明,sc-miR-1343与ssc-miR-7137-3p通过靶向结合3′UTR对猪ATGL基因有下调作用。 | 戴丽荷 褚晓红 路伏增 黄孙平 徐如海 | 2015 | 畜牧兽医学报2015，46，8： | 2 |
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