With the help of model experiments, we are able to offer a detailed proposal for the inhibition of DNA duplication and no inhibition of RNA viral infectivity. As a backbone, we introduced methyl phosphotriester (MPTE)...With the help of model experiments, we are able to offer a detailed proposal for the inhibition of DNA duplication and no inhibition of RNA viral infectivity. As a backbone, we introduced methyl phosphotriester (MPTE). Duplex formation according to the traditional Watson and Crick base-pairing: [(MPTE)<sub>n−1</sub> DNA] * DNA and [(MPTE)<sub>n−1</sub> DNA] * RNA, where n = number of DNA and RNA bases. However, in the latter case, inhibition is obtained by reduction of the number of MPTE linkages, as is confirmed with model experiments and under biological conditions with micro (mi)RNA substrates. The latter results have recently been published. One or more single MPTEs are disseminated over different places of DNA without neighbour MPTEs (Prof. Wen-Yih Chen and his group, Taiwan).展开更多
文摘With the help of model experiments, we are able to offer a detailed proposal for the inhibition of DNA duplication and no inhibition of RNA viral infectivity. As a backbone, we introduced methyl phosphotriester (MPTE). Duplex formation according to the traditional Watson and Crick base-pairing: [(MPTE)<sub>n−1</sub> DNA] * DNA and [(MPTE)<sub>n−1</sub> DNA] * RNA, where n = number of DNA and RNA bases. However, in the latter case, inhibition is obtained by reduction of the number of MPTE linkages, as is confirmed with model experiments and under biological conditions with micro (mi)RNA substrates. The latter results have recently been published. One or more single MPTEs are disseminated over different places of DNA without neighbour MPTEs (Prof. Wen-Yih Chen and his group, Taiwan).
文摘目的探讨mi RNA-144在骨髓增生异常综合征(MDS)患者外周血中的表达情况及其临床意义。方法收集MDS患者24例,健康对照12例,q RT-PCR检测外周血mi RNA-144相对表达量,统计分析mi RNA-144在MDS中的表达情况及与其预后相关性。结果 mi RNA-144在MDS亚型难治性血细胞减少伴单系病态造血(RCUD)、难治性血细胞减少伴多系病态造血(RCMD)、难治性贫血伴环形铁粒幼细胞(RARS)、难治性贫血伴原始细胞增多-1(RAEB-1)及难治性贫血伴原始细胞增多-2(RAEB-2)中的相对表达量分别为3.81、3.64、4.56、6.49及8.73,均显著高于健康对照组,P<0.01;mi RNA-144在预后好和预后差组中的相对表达量分别为3.81和7.18,差异具有统计学意义,P<0.01。结论 mi RNA-144在MDS中高表达,且可作为潜在的预后评估指标。
