Terminal continuation (TC) RNA amplification without second strand synthesis.

Terminal continuation (TC) RNA amplification without second strand synthesis.
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DOI:
10.1016/j.jneumeth.2008.10.027
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发表时间:
2009-03-15
影响因子:
3
通讯作者:
Ginsberg, Stephen D.
Ginsberg, Stephen D.
中科院分区:
医学4区
文献类型:
--
作者:
Alldred, Melissa J.;Che, Shaoli;Ginsberg, Stephen D.

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末端连续(TC)RNA扩增最初被开发用于可重复且廉价地扩增RNA。TC RNA扩增方法已通过避免第二链DNA合成而得到进一步改进,这是一种具有成本效益的方案,其需要更少的时间来进行RNA扩增所需的更少的操作。结果表明,在没有第二链合成的情况下进行TC RNA扩增与使用从小鼠大脑和通过激光捕获显微切割从死后人脑获得的海马神经元中收集的RNA的原始方案没有不同。改进的TC RNA扩增方法可以区分正常对照和阿尔茨海默病海马神经元之间的单细胞基因表达谱,与原始方案难以区分。因此,没有第二链合成的TC RNA扩增是从微量输入RNA进行RNA扩增的可再现的、时间和成本有效的方法,并且与微抽吸策略和随后的微阵列分析以及定量实时PCR兼容。
Terminal continuation (TC) RNA amplification was developed originally to reproducibly and inexpensively amplify RNA. The TC RNA amplification method has been improved further by obviating second strand DNA synthesis, a cost-effective protocol that takes less time to perform with fewer manipulations required for RNA amplification. Results demonstrate that TC RNA amplification without second strand synthesis does not differ from the original protocol using RNA harvested from mouse brain and from hippocampal neurons obtained via laser capture microdissection from postmortem human brains. The modified TC RNA amplification method can discriminate single cell gene expression profiles between normal control and Alzheimer’s disease hippocampal neurons indistinguishable from the original protocol. Thus, TC RNA amplification without second strand synthesis is a reproducible, time- and cost-effective method for RNA amplification from minute amounts of input RNA, and is compatible with microaspiration strategies and subsequent microarray analysis as well as quantitative real-time PCR.
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