Split Probe-Induced Protein Translational Amplification for Nucleic Acid Detection

Area of Science:

• Biochemistry
• Molecular Biology
• Biotechnology

Background:

• Nucleic acid detection is crucial for diagnostics, research, and forensics.
• Current methods often lack sensitivity, accuracy, or affordability.
• Sensitive and specific nucleic acid detection is a persistent challenge.

Purpose of the Study:

• To develop a simple, sensitive, and accurate method for nucleic acid detection.
• To enhance sensitivity through a split-probe strategy and in vitro translational amplification.
• To enable simultaneous detection of multiple microRNAs (miRNAs).

Main Methods:

• Utilized a split-probe strategy combined with in vitro translational amplification of reporter proteins.
• Designed a fluorescence split-probe sensor employing reporter proteins with distinct fluorescence wavelengths.
• Incorporated luminescence detection by modifying reporter protein sequences for enhanced sensitivity.

Main Results:

• Achieved high sensitivity and selectivity in detecting target microRNAs (miRNAs).
• Demonstrated successful analysis and quantification of miRNAs from cell lines and extracellular vesicles.
• The system enabled simultaneous detection of multiple miRNAs using varied fluorescence reporters.

Conclusions:

• The developed split-probe sensor offers a simple, sensitive, and specific tool for nucleic acid detection.
• This approach has significant potential for various applications, including diagnostics and research.
• The system's adaptability allows for the detection of diverse target nucleic acids.