Fast and highly sensitive full-length single-cell RNA sequencing using FLASH-seq

Area of Science:

• Molecular Biology
• Genomics
• Biotechnology

Background:

• Single-cell RNA sequencing (scRNA-seq) is crucial for understanding cellular heterogeneity.
• Existing methods like Smart-seq3 have limitations in speed, sensitivity, and hands-on time.
• Accurate gene expression profiling at the single-cell level is essential for biological discovery.

Purpose of the Study:

• To introduce FLASH-seq (FS), a novel full-length scRNA-seq protocol.
• To demonstrate FS's advantages in sensitivity, speed, and ease of use compared to existing methods.
• To highlight FS's utility for high-resolution gene expression characterization across multiple samples.

Main Methods:

• Development of the FLASH-seq (FS) protocol for full-length scRNA-seq.
• Optimization of the FS protocol for reduced hands-on time (~4.5 hours).
• Incorporation of unique molecular identifiers (UMIs) for accurate molecule counting and assessment of strand-invasion artifacts.

Main Results:

• FS achieves increased sensitivity compared to Smart-seq3.
• The FS protocol significantly reduces hands-on time and is automatable and miniaturizable.
• FS demonstrates reduced strand-invasion artifacts and enables precise molecule counting with UMIs.

Conclusions:

• FLASH-seq (FS) offers a highly sensitive and efficient method for full-length scRNA-seq.
• FS provides a streamlined workflow, reducing time and resource consumption.
• FS is well-suited for high-resolution gene expression studies, particularly across multiple samples.