A cybergenetic framework for engineering intein-mediated integral feedback control systems.

Autor: Anastassov S; Department of Biosystems Science and Engineering, ETH Zürich, 4058, Basel, Switzerland., Filo M; Department of Biosystems Science and Engineering, ETH Zürich, 4058, Basel, Switzerland., Chang CH; Department of Biosystems Science and Engineering, ETH Zürich, 4058, Basel, Switzerland., Khammash M; Department of Biosystems Science and Engineering, ETH Zürich, 4058, Basel, Switzerland. mustafa.khammash@bsse.ethz.ch.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Mar 11; Vol. 14 (1), pp. 1337. Date of Electronic Publication: 2023 Mar 11.
DOI: 10.1038/s41467-023-36863-9
Abstrakt: The ability of biological systems to tightly regulate targeted variables, despite external and internal disturbances, is known as Robust Perfect Adaptation (RPA). Achieved frequently through biomolecular integral feedback controllers at the cellular level, RPA has important implications for biotechnology and its various applications. In this study, we identify inteins as a versatile class of genetic components suitable for implementing these controllers and present a systematic approach for their design. We develop a theoretical foundation for screening intein-based RPA-achieving controllers and a simplified approach for modeling them. We then genetically engineer and test intein-based controllers using commonly used transcription factors in mammalian cells and demonstrate their exceptional adaptation properties over a wide dynamic range. The small size, flexibility, and applicability of inteins across life forms allow us to create a diversity of genetic RPA-achieving integral feedback control systems that can be used in various applications, including metabolic engineering and cell-based therapy.
(© 2023. The Author(s).)
Databáze: MEDLINE
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