Strategies for Controlling Synthetic Cells: Approaches, Models, Applications

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Synthetic Biology and Systems Biology".

Deadline for manuscript submissions: 22 April 2025 | Viewed by 1436

Special Issue Editors

School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
Interests: DNA; lipid nanoparticle; biosensor

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Guest Editor
Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, Italy
Interests: synthetic biology; bottom-up synthetic cells; cell-free synthetic biology; bio-organic chemistry; protocells; origins of life; artificial life; drug delivery; bio-chem-ICTs; autopoiesis and cognition; molecular communication
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Special Issue Information

Dear Colleagues,

This Special Issue will explore cutting-edge research related to synthetic cells (artificial cells), their construction, and the various strategies to control their behavior and their potential applications.  Research on synthetic cells has advanced greatly in recent years. These man-made structures can be designed and built in different manners, and with different materials, so that a variety of cell-like or artificial functions can be achieved. These continuous biotechnological advancements allow the construction of very interesting systems whose behavior is far from being trivial. Synthetic cells have been used as a tool for mimicking and understanding the behavior of biological cells, as well as functioning for real-life applications such as bioreactors, drug delivery, and biosensors. These research topics have attracted significant attention in recent years.

In order to control synthetic cells, several strategies have been devised. Attention has been focused on applying biochemical signals as well as mechanisms based on illumination. Biochemical signals operate thanks to the principles of molecular recognition, assuring elevated specificity, e.g., binding to receptors, nucleotide base pairing, formation of protein–DNA complexes, etc. Thanks to these mechanisms, properly designed synthetic cells can behave in a controlled manner. Optogenetic mechanisms and light-controlled protein functions also contribute to the synthetic biology toolbox for controlling synthetic cells. Higher order patterns, based on the coordinated behavior of ensembles communicating synthetic cells (e.g., tissue-like systems), have also become an attractive target in the field.

Advances in controlling mechanisms will lead to systems of higher complexity, and at the same time, it will enhance synthetic cell utility and performances, reaching the goal of constructing programmable synthetic cells. Controlling synthetic cell behavior will favor both fundamental research and biological applications.

This Special Issue is now open for submissions. Original articles (experiments or numerical models), reviews, perspectives, and opinions about this exciting field are welcome, focusing both on basic and applied science. It would be appreciated if interested authors submitted an Expression of Interest (EoI) or brief proposal (e.g., title, abstract) to the MDPI Life Editorial Office or the Special Issue academic editors.

Dr. Feiran Li
Prof. Pasquale Stano
Guest Editor

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Keywords

  • artificial cells
  • bioreactors
  • biosensor
  • cell-free systems
  • coacervates
  • controlled behavior
  • DNA signals
  • drug delivery
  • gene expression regulation
  • liposomes
  • microcompartments
  • modeling
  • molecular communication
  • nanomedicine
  • nanoparticles
  • optogenetics
  • polymersomes
  • protocells
  • signaling
  • stimulus-response
  • synthetic biology
  • synthetic cells

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Published Papers (1 paper)

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Review

13 pages, 753 KiB  
Review
Xenobiology for the Biocontainment of Synthetic Organisms: Opportunities and Challenges
by Lucía Gómez-Tatay and José Miguel Hernández-Andreu
Life 2024, 14(8), 996; https://doi.org/10.3390/life14080996 - 10 Aug 2024
Viewed by 983
Abstract
Since the development of recombinant DNA technologies, the need to establish biosafety and biosecurity measures to control genetically modified organisms has been clear. Auxotrophies, or conditional suicide switches, have been used as firewalls to avoid horizontal or vertical gene transfer, but their efficacy [...] Read more.
Since the development of recombinant DNA technologies, the need to establish biosafety and biosecurity measures to control genetically modified organisms has been clear. Auxotrophies, or conditional suicide switches, have been used as firewalls to avoid horizontal or vertical gene transfer, but their efficacy has important limitations. The use of xenobiological systems has been proposed as the ultimate biosafety tool to circumvent biosafety problems in genetically modified organisms. Xenobiology is a subfield of Synthetic Biology that aims to construct orthogonal biological systems based on alternative biochemistries. Establishing true orthogonality in cell-based or cell-free systems promises to improve and assure that we can progress in synthetic biology safely. Although a wide array of strategies for orthogonal genetic systems have been tested, the construction of a host harboring fully orthogonal genetic system, with all parts operating in an orchestrated, integrated, and controlled manner, still poses an extraordinary challenge for researchers. In this study, we have performed a thorough review of the current literature to present the main advances in the use of xenobiology as a strategy for biocontainment, expanding on the opportunities and challenges of this field of research. Full article
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