Exploring the effect of library preparation on RNA sequencing experiments

Area of Science:

• Genomics
• Molecular Biology
• Bioinformatics

Background:

• RNA sequencing (RNA-seq) is a powerful tool for transcriptome analysis.
• Clinical adaptation of RNA-seq requires validation of sample preparation methods.
• Patient sample variability can affect analytical reliability.

Purpose of the Study:

• To evaluate the impact of sample preparation factors on RNA-seq reliability.
• To assess effects on sequence bias, gene expression, and biological functions.
• To determine the suitability of RNA-seq for clinical applications.

Main Methods:

• Analysis of primary B cell and CD4+ cell samples from healthy subjects.
• Investigation of cDNA library storage time, input RNA quantity, and cell cryopreservation.
• Comparison of gene expression profiles and enriched biological functions.

Main Results:

• No significant alterations in gene expression profiles were observed.
• Sequence biases and enriched biological functions remained consistent.
• Sample preparation factors did not substantially affect RNA-seq outcomes.

Conclusions:

• RNA-seq is robust to variations in cDNA library storage time, input RNA quantity, and cell cryopreservation.
• These findings support the broader clinical application of RNA-seq using patient samples.
• RNA-seq can be reliably implemented in routine clinical settings.