Dual Input-Controlled Synthetic mRNA Circuit for Bidirectional Protein Expression Regulation.
ACS Synth Biol
; 12(9): 2516-2523, 2023 09 15.
Article
in En
| MEDLINE
| ID: mdl-37652441
ABSTRACT
Synthetic mRNA circuits manipulate cell fate by controlling output protein expression via cell-specific input molecule detection. Most current circuits either repress or enhance output production upon input binding. Such binary input-output mechanisms restrict the fine-tuning of protein expression to control complex cellular events. Here we designed mRNA circuits using enhancer/repressor modules that were independently controlled by different input molecules, resulting in bidirectional output regulation; the maximal enhancement over maximal repression was 57 fold. The circuit either enhances or represses protein production in different cells based on the difference in the expression of two microRNAs. This study examined novel bidirectional circuit designs capable of fine-tuning protein production by sensing multiple input molecules. It also broadened the scope of cell manipulation by synthetic mRNA circuits, facilitating the development of mRNA circuits for precise cell manipulation and providing cell-based solutions to biomedical problems.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
MicroRNAs
Language:
En
Journal:
ACS Synth Biol
Year:
2023
Document type:
Article
Affiliation country:
Hong Kong