Reprogramming Gene Expression by Targeting RNA-Based Interactions: A Novel Pipeline Utilizing RNA Array Technology

Area of Science:

• Molecular Biology
• Synthetic Biology
• Antimicrobial Research

Background:

• Bacterial trans-encoded small RNAs (sRNAs) regulate gene expression via mRNA interactions, crucial for bacterial processes.
• Modulating these sRNA-mRNA interactions offers potential for synthetic biology and novel antibacterial strategies.

Purpose of the Study:

• To develop a novel pipeline for designing and validating antisense oligonucleotides (ASOs) targeting bacterial sRNA-mRNA interactions.
• To reprogram gene expression for synthetic biology and antibacterial applications by modulating RNA-based regulatory networks.

Main Methods:

• Rational design of anti-sRNA ASOs, synthesized as peptide nucleic acids (PNAs).
• Development of an RNA array-based assay for in vitro screening of ASO activity.
• Utilized an Escherichia coli-based reporter assay to validate ASO function in a cellular context.

Main Results:

• Successfully designed and synthesized anti-sRNA ASOs targeting key sRNA-mRNA interactions.
• Validated the ability of ASOs to inhibit sRNA-mRNA interactions in vitro.
• Demonstrated cellular regulatory activity of ASOs in modulating gene expression.

Conclusions:

• The developed pipeline effectively generates ASOs capable of modulating bacterial gene expression by targeting sRNA-mRNA interactions.
• This approach holds significant potential for advancing synthetic biology tools and developing new antibacterial therapeutics.
• The pipeline is anticipated to be broadly applicable for targeting RNA-based regulatory networks across various biological fields.