Bacterial variability in the mammalian gut captured by a single-cell synthetic oscillator

Posted by: | October 21, 2019 | Comments

RINGS analysis measures single-cell repressilator 2.0 phase


Synthetic gene oscillators have the potential to control timed functions and periodic gene expression in engineered cells. Such oscillators have been refined in bacteria in vitro, however, these systems have lacked the robustness and precision necessary for applications in complex in vivo environments, such as the mammalian gut. Here, we demonstrate the implementation of a synthetic oscillator capable of keeping robust time in the mouse gut over periods of days. The oscillations provide a marker of bacterial growth at a single-cell level enabling quantification of bacterial dynamics in response to inflammation and underlying variations in the gut microbiota. Our work directly detects increased bacterial growth heterogeneity during disease and differences between spatial niches in the gut, demonstrating the deployment of a precise engineered genetic oscillator in real-life settings.

Read more at: Nature Communications

David T. Riglar, David L. Richmond, Laurent Potvin-Trottier, Andrew A. Verdegaal, Alexander D. Naydich, Somenath Bakshi, Emanuele Leoncini, Lorena G. Lyon, Johan Paulsson & Pamela A. Silver. Nature Communications. DOI: 11 Oct 2019.

Stay up-to-date!
Email Address *
First Name
Last Name

* indicates required
Privacy Policy

Terms & Conditions | Privacy Policy | © 2020 The Translational Microbiome Research Forum