Introducing synthetic thermostable RNase inhibitors to single-cell RNA-seq

Area of Science:

• Molecular Biology
• Genomics
• Biotechnology

Background:

• Single-cell RNA-sequencing (scRNAseq) is a powerful tool in biomedicine, with significant advancements in library preparation methods.
• Maintaining RNA integrity is crucial throughout the scRNAseq workflow, from cell collection to cDNA library generation.
• Current RNase inhibition methods have seen limited progress, posing a challenge to optimal RNA preservation.

Purpose of the Study:

• To evaluate a novel synthetic thermostable RNase inhibitor (SEQURNA) for its efficacy in single-cell transcriptomics.
• To compare the performance of SEQURNA against traditional protein-based recombinant RNase inhibitors (RRIs).
• To identify potential improvements in library quality, reproducibility, and experimental capabilities offered by SEQURNA.

Main Methods:

• Development and application of a synthetic thermostable RNase inhibitor (SEQURNA).
• Comparative analysis of scRNAseq library quality generated using SEQURNA versus RRIs.
• Assessment of reproducibility, throughput, and compatibility with various experimental conditions, including heat cycles.

Main Results:

• SEQURNA produced single-cell libraries of equal or superior quality compared to RRIs.
• The synthetic inhibitor demonstrated enhanced reproducibility and throughput.
• SEQURNA enabled novel experimental workflows, including RNase inhibition during heat cycles, and reduced reliance on cold-chain transport.

Conclusions:

• Replacing RRIs with the synthetic thermostable RNase inhibitor SEQURNA represents a substantial advancement in single-cell transcriptomics.
• SEQURNA offers improved performance, flexibility, and efficiency for scRNAseq applications.
• This innovation has the potential to streamline workflows and enhance the reliability of single-cell gene expression analysis.