Leveraging RIBOTAC technology: Fluorescent RNase L probes for live-cell imaging and function analysis

Area of Science:

• Biochemistry
• Molecular Biology
• Chemical Biology

Background:

• RNA-targeting small molecules, like RIBOTACs, offer therapeutic potential by degrading specific RNAs via ribonuclease recruitment.
• Developing effective ribonuclease recruitment tools is crucial but remains challenging.
• Ribonuclease L (RNase L) is a key target for RIBOTACs, but tools for its study are limited.

Purpose of the Study:

• To introduce novel fluorescent ribonuclease binders for enhanced visualization and investigation of RNase L activity.
• To provide new insights into RNase L dynamics and RNA degradation pathways.
• To enable high-throughput screening for RNase L-recruiting small molecules.

Main Methods:

• Synthesis of novel fluorescent ribonuclease binders.
• Application of fluorescent probes for visualizing RNase L activity.
• Utilizing fluorescent conjugates for tracking RNase L localization and trafficking.
• Development of high-throughput fluorescence-based assays.

Main Results:

• Demonstrated enhanced visualization and investigation of RNase L activity using novel fluorescent binders.
• Provided new insights into RNase L dynamics and RNA degradation mechanisms.
• Established the utility of fluorescent probes for real-time tracking of RNase L.
• Enabled high-throughput screening for small molecules that bind and recruit RNase L.

Conclusions:

• Novel fluorescent ribonuclease binders significantly advance the study of RNase L.
• These probes facilitate a deeper understanding of RNA degradation pathways.
• The developed tools pave the way for more effective RNA-targeted degradation therapies and drug discovery.