A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.

The chemically-synthesized siRNA duplex has become a powerful and widely used tool for RNAi loss-of-function studies, but suffers from a high off-target effect problem. Recently, endoribonulease-prepared siRNA (esiRNA) has been shown to be an attractive alternative due to its lower off-target effect...

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Main Authors: Zhao Wang, Huang Huang, Hanshuo Zhang, Changhong Sun, Yang Hao, Junyu Yang, Yu Fan, Jianzhong Jeff Xi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3384639?pdf=render
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author Zhao Wang
Huang Huang
Hanshuo Zhang
Changhong Sun
Yang Hao
Junyu Yang
Yu Fan
Jianzhong Jeff Xi
author_facet Zhao Wang
Huang Huang
Hanshuo Zhang
Changhong Sun
Yang Hao
Junyu Yang
Yu Fan
Jianzhong Jeff Xi
author_sort Zhao Wang
collection DOAJ
description The chemically-synthesized siRNA duplex has become a powerful and widely used tool for RNAi loss-of-function studies, but suffers from a high off-target effect problem. Recently, endoribonulease-prepared siRNA (esiRNA) has been shown to be an attractive alternative due to its lower off-target effect and cost effectiveness. However, the current manufacturing method for esiRNA is complicated, mainly in regards to purification and normalization on a large-scale level. In this study, we present a magnetic bead-integrated chip that can immobilize amplification or transcription products on beads and accomplish transcription, digestion, normalization and purification in a robust and convenient manner. This chip is equipped to manufacture ready-to-use esiRNAs on a large-scale level. Silencing specificity and efficiency of these esiRNAs were validated at the transcriptional, translational and functional levels. Manufacture of several normalized esiRNAs in a single well, including those silencing PARP1 and BRCA1, was successfully achieved, and the esiRNAs were subsequently utilized to effectively investigate their synergistic effect on cell viability. A small esiRNA library targeting 68 tyrosine kinase genes was constructed for a loss-of-function study, and four genes were identified in regulating the migration capability of Hela cells. We believe that this approach provides a more robust and cost-effective choice for manufacturing esiRNAs than current approaches, and therefore these heterogeneous RNA strands may have utility in most intensive and extensive applications.
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spelling doaj.art-67874cac29294c01a5a238a8656db9482022-12-21T19:07:36ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0176e3941910.1371/journal.pone.0039419A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.Zhao WangHuang HuangHanshuo ZhangChanghong SunYang HaoJunyu YangYu FanJianzhong Jeff XiThe chemically-synthesized siRNA duplex has become a powerful and widely used tool for RNAi loss-of-function studies, but suffers from a high off-target effect problem. Recently, endoribonulease-prepared siRNA (esiRNA) has been shown to be an attractive alternative due to its lower off-target effect and cost effectiveness. However, the current manufacturing method for esiRNA is complicated, mainly in regards to purification and normalization on a large-scale level. In this study, we present a magnetic bead-integrated chip that can immobilize amplification or transcription products on beads and accomplish transcription, digestion, normalization and purification in a robust and convenient manner. This chip is equipped to manufacture ready-to-use esiRNAs on a large-scale level. Silencing specificity and efficiency of these esiRNAs were validated at the transcriptional, translational and functional levels. Manufacture of several normalized esiRNAs in a single well, including those silencing PARP1 and BRCA1, was successfully achieved, and the esiRNAs were subsequently utilized to effectively investigate their synergistic effect on cell viability. A small esiRNA library targeting 68 tyrosine kinase genes was constructed for a loss-of-function study, and four genes were identified in regulating the migration capability of Hela cells. We believe that this approach provides a more robust and cost-effective choice for manufacturing esiRNAs than current approaches, and therefore these heterogeneous RNA strands may have utility in most intensive and extensive applications.http://europepmc.org/articles/PMC3384639?pdf=render
spellingShingle Zhao Wang
Huang Huang
Hanshuo Zhang
Changhong Sun
Yang Hao
Junyu Yang
Yu Fan
Jianzhong Jeff Xi
A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
PLoS ONE
title A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
title_full A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
title_fullStr A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
title_full_unstemmed A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
title_short A magnetic bead-integrated chip for the large scale manufacture of normalized esiRNAs.
title_sort magnetic bead integrated chip for the large scale manufacture of normalized esirnas
url http://europepmc.org/articles/PMC3384639?pdf=render
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