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Synthetic far-red light-mediated CRISPR-dCas9 device for inducing functional neuronal differentiation
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Synthetic far-red light-mediated CRISPR-dCas9 device for inducing functional neuronal differentiation
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Synthetic far-red light-mediated CRISPR-dCas9 device for inducing functional neuronal differentiation
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Journal Article
Synthetic far-red light-mediated CRISPR-dCas9 device for inducing functional neuronal differentiation
2018
Overview
The ability to control the activity of CRISPR-dCas9 with precise spatiotemporal resolution will enable tight genome regulation of user-defined endogenous genes for studying the dynamics of transcriptional regulation. Optogenetic devices with minimal phototoxicity and the capacity for deep tissue penetration are extremely useful for precise spatiotemporal control of cellular behavior and for future clinic translational research. Therefore, capitalizing on synthetic biology and optogenetic design principles, we engineered a far-red light (FRL)-activated CRISPR-dCas9 effector (FACE) device that induces transcription of exogenous or endogenous genes in the presence of FRL stimulation. This versatile system provides a robust and convenient method for precise spatiotemporal control of endogenous gene expression and also has been demonstrated to mediate targeted epigenetic modulation, which can be utilized to efficiently promote differentiation of induced pluripotent stem cells into functional neurons by up-regulating a single neural transcription factor, NEUROG2. This FACE system might facilitate genetic/epigenetic reprogramming in basic biological research and regenerative medicine for future biomedical applications.
Publisher
National Academy of Sciences
