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Dynamically reshaping signaling networks to program cell fate via genetic controllers.

ABSTRACT: Engineering of cell fate through synthetic gene circuits requires methods to precisely implement control around native decision-making pathways and offers the potential to direct cell processes. We demonstrate a class of genetic control systems, molecular network diverters, that interface with a native signaling pathway to route cells to divergent fates in response to environmental signals without modification of native genetic material. A method for identifying control points within natural networks is described that enables the construction of synthetic control systems that activate or attenuate native pathways to direct cell fate. We integrate opposing genetic programs by developing network architectures for reduced antagonism and demonstrate rational tuning of performance. Extension of these control strategies to mammalian systems should facilitate the engineering of complex cellular signaling systems.

SUBMITTER: Galloway KE

PROVIDER: S-EPMC4069606 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

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Dynamically reshaping signaling networks to program cell fate via genetic controllers.

Galloway Kate E KE Franco Elisa E Smolke Christina D CD

Science (New York, N.Y.) 20130815 6152

Engineering of cell fate through synthetic gene circuits requires methods to precisely implement control around native decision-making pathways and offers the potential to direct cell processes. We demonstrate a class of genetic control systems, molecular network diverters, that interface with a native signaling pathway to route cells to divergent fates in response to environmental signals without modification of native genetic material. A method for identifying control points within natural net ...[more]

PMID: 23950497

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