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2016 ; 16
(9
): 2525-37
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Synthetic Biology Platform for Sensing and Integrating Endogenous Transcriptional
Inputs in Mammalian Cells
#MMPMID27545896
Angelici B
; Mailand E
; Haefliger B
; Benenson Y
Cell Rep
2016[Aug]; 16
(9
): 2525-37
PMID27545896
show ga
One of the goals of synthetic biology is to develop programmable artificial gene
networks that can transduce multiple endogenous molecular cues to precisely
control cell behavior. Realizing this vision requires interfacing natural
molecular inputs with synthetic components that generate functional molecular
outputs. Interfacing synthetic circuits with endogenous mammalian transcription
factors has been particularly difficult. Here, we describe a systematic approach
that enables integration and transduction of multiple mammalian transcription
factor inputs by a synthetic network. The approach is facilitated by a
proportional amplifier sensor based on synergistic positive autoregulation. The
circuits efficiently transduce endogenous transcription factor levels into RNAi,
transcriptional transactivation, and site-specific recombination. They also
enable AND logic between pairs of arbitrary transcription factors. The results
establish a framework for developing synthetic gene networks that interface with
cellular processes through transcriptional regulators.