Multiplexed and programmable regulation of gene networks with an integrated RNA and CRISPR/Cas toolkit in human cells.
Multiplexed and programmable regulation of gene networks with an integrated RNA and CRISPR/Cas toolkit in human cells.
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DOI:
10.1016/j.molcel.2014.04.022
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发表时间:
2014-05-22
期刊:
影响因子:
16
通讯作者:
Lu, Timothy K.
中科院分区:
文献类型:
--
作者:
Nissim, Lior;Perli, Samuel D.;Fridkin, Alexandra;Perez-Pinera, Pablo;Lu, Timothy K.
RNA-based regulation and CRISPR/Cas transcription factors (CRISPR-TFs) have yet to be integrated for multiplexed and tunable modulation of gene networks. Moreover, guide RNAs (gRNAs) for CRISPR-TFs have only been expressed from RNA polymerase III promoters in human cells, which limits their use for conditional gene regulation. To overcome these challenges, we combined multiple RNA regulatory strategies, including RNA-triple-helix structures, introns, microRNAs, and ribozymes, with Cas9-based CRISPR-TFs and Cas6/Csy4-based RNA processing in human cells. We describe three strategies for expressing functional gRNAs from RNA polymerase II promoters, which enable multiplexed production of proteins and multiple gRNAs from a single transcript. We used these tools to efficiently modulate endogenous promoters and implement tunable synthetic circuits, including multi-stage cascades and RNA-dependent networks that could be rewired with Csy4 to achieve complex behaviors. This multiplexable toolkit will be valuable for programming scalable gene circuits and perturbing endogenous networks for biology, therapeutic, and synthetic-biology applications.
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