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Dual Input-Controlled Synthetic mRNA Circuit for Bidirectional Protein Expression Regulation
Kaixin Tan1, Yaxin Hu1, Zhenghua Liang1
1Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Room 5578, Academic Building, Clear Water Bay, Kowloon, Hong Kong.
ACS Synthetic Biology
|August 31, 2023
Summary
New synthetic messenger RNA (mRNA) circuits offer bidirectional control over protein production, enabling precise fine-tuning for complex cellular events and advanced cell manipulation. This breakthrough facilitates novel cell-based solutions in biomedicine.
Area of Science:
- Synthetic biology
- Molecular and Cell Biology
Background:
- Current synthetic messenger RNA (mRNA) circuits offer limited binary control (either repression or enhancement) over output protein expression.
- This binary mechanism restricts the fine-tuning of protein expression needed for complex cellular events.
Discussion:
- Developed novel mRNA circuits with independently controlled enhancer/repressor modules for bidirectional output regulation.
- Achieved a maximal enhancement over maximal repression ratio of 57-fold.
- Demonstrated cell-specific protein production control based on microRNA expression differences.
Key Insights:
- Introduced bidirectional mRNA circuit designs for fine-tuning protein production through sensing multiple input molecules.
- Enabled precise manipulation of cell fate and function by synthetic mRNA circuits.
- Expanded the capabilities of mRNA circuits for sophisticated cellular control.
Outlook:
- Facilitates the development of advanced mRNA circuits for precise cell manipulation.
- Paves the way for novel cell-based therapeutic strategies and biomedical solutions.
- Supports the engineering of complex cellular behaviors for research and clinical applications.
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