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Updated: Sep 9, 2025

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TrueProbes: Quantitative Single-Molecule RNA-FISH Probe Design Improves RNA Detection.

Jason J Hughes1, Benjamin K Kesler1, John E Adams1

  • 1Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, TN 37232, USA.

Biorxiv : the Preprint Server for Biology
|September 2, 2025
PubMed
Summary
This summary is machine-generated.

TrueProbes software enhances single-molecule RNA fluorescence in situ hybridization (smRNA-FISH) probe design for accurate RNA quantification. It improves probe specificity and experimental performance compared to existing tools.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biotechnology

Background:

  • Single-molecule RNA fluorescence in situ hybridization (smRNA-FISH) visualizes RNA at high resolution.
  • Accurate quantification requires highly specific probes to avoid off-target binding.
  • Current smRNA-FISH probe design tools have limitations in specificity assessment and optimization.

Purpose of the Study:

  • To develop a novel software platform, TrueProbes, for designing high-specificity smRNA-FISH probes.
  • To address limitations of existing probe design tools.
  • To improve the accuracy and reliability of smRNA-FISH experiments.

Main Methods:

  • Integrated genome-wide BLAST analysis with thermodynamic modeling for probe design.
  • Developed a thermodynamic-kinetic simulation model for predictive design metrics.
  • Ranked and selected probes based on binding affinity, specificity, and structural constraints.

Main Results:

  • TrueProbes consistently outperformed existing smRNA-FISH design tools in computational metrics.
  • Probes designed with TrueProbes demonstrated enhanced target selectivity.
  • Experimental validation confirmed superior performance of TrueProbes-designed probes.

Conclusions:

  • TrueProbes provides a robust platform for designing highly specific and effective smRNA-FISH probes.
  • The software improves RNA quantification accuracy in cellular and tissue samples.
  • TrueProbes represents a significant advancement in smRNA-FISH methodology.