Control-Based Continuation : A New Approach to Prototype Synthetic Gene Networks

Control-Based Continuation (CBC) is a general and systematic method to carry out the bifurcation analysis of physical experiments. CBC does not rely on a mathematical model and thus overcomes the uncertainty introduced when identifying bifurcation curves indirectly through modeling and parameter estimation. We demonstrate, in silico, CBC applicability to biochemical processes by tracking the equilibrium curve of a toggle switch, which includes additive process noise and exhibits bistability. We compare the results obtained when CBC uses a model-free and model-based control strategy and show that both can track stable and unstable solutions, revealing bistability. We then demonstrate CBC in conditions more representative of an in vivo experiment using an agent-based simulator describing cell growth and division, cell-to-cell variability, spatial distribution, and diffusion of chemicals. We further show how the identified curves can be used for parameter estimation and discuss how CBC can significantly accelerate the prototyping of synthetic gene regulatory networks.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

ACS synthetic biology - 11(2022), 7 vom: 15. Juli, Seite 2300-2313

Sprache:

Englisch

Beteiligte Personen:

de Cesare, Irene [VerfasserIn]
Salzano, Davide [VerfasserIn]
di Bernardo, Mario [VerfasserIn]
Renson, Ludovic [VerfasserIn]
Marucci, Lucia [VerfasserIn]

Links:

Volltext

Themen:

Bifurcations
Control-based continuation
Journal Article
Research Support, Non-U.S. Gov't
Synthetic biology
Toggle switch

Anmerkungen:

Date Completed 18.07.2022

Date Revised 22.07.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acssynbio.1c00632

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM34250911X