Synthetic bugs on the loose: containment options for deeply engineered (micro)organisms

Area of Science:

• Synthetic Biology
• Environmental Microbiology
• Biotechnology

Background:

• Synthetic Biology (SynBio) enables genome editing for novel applications.
• This technology raises concerns about the environmental release of genetically modified microorganisms.
• Ensuring the containment of SynBio agents is crucial for biosafety.

Purpose of the Study:

• To explore containment strategies for genetically modified microorganisms in SynBio.
• To address concerns regarding the environmental fate and horizontal gene transfer of engineered microbes.
• To evaluate methods for controlling the survival and proliferation of SynBio agents in natural environments.

Main Methods:

• Review of containment devices for SynBio agents.
• Analysis of genetic circuits and trophic restraint schemes.
• Investigation of alternative genetic codes and xenobiotic dependencies.

Main Results:

• Containment strategies aim to halt horizontal gene transfer and limit survival.
• Genetic circuits and trophic restraints are proposed for controlled release.
• Alternative genetic codes and xenobiotic dependencies show promise for containment.

Conclusions:

• Effective containment is essential for the safe deployment of SynBio technologies.
• Novel approaches like alternative genetic codes offer potential for enhanced biosafety.
• Further research is needed to overcome existing bottlenecks in SynBio containment.