Advances in Quantitative Techniques for Mapping RNA Modifications

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• RNA modifications are vital regulators of gene expression and cellular functions, impacting RNA stability, splicing, translation, and localization.
• Their dysregulation is implicated in various diseases, including cancer, neurodegenerative disorders, and viral infections.
• Accurate quantification and mapping of RNA modifications are essential for elucidating their biological roles.

Purpose of the Study:

• To review and summarize current and emerging methodologies for analyzing RNA modifications.
• To discuss the advantages, limitations, and challenges of each analytical technique.
• To provide a framework for selecting appropriate RNA modification analysis strategies.

Main Methods:

• Mass spectrometry
• Antibody-based and non-antibody-based detection methods
• PCR- and NMR-based detection
• Chemical- and enzyme-assisted sequencing
• Nanopore direct RNA sequencing
• Single-cell and single-molecule imaging techniques

Main Results:

• A comprehensive overview of diverse RNA modification analysis techniques is presented.
• The review critically evaluates the strengths and weaknesses of each method.
• Advanced techniques for single-cell and single-molecule analysis are highlighted.

Conclusions:

• A robust toolkit for epitranscriptome analysis is available, encompassing various technologies.
• These methods are crucial for understanding RNA modification functions and identifying disease biomarkers.
• Future research should focus on high-throughput, multiplexed, and single-cell approaches for comprehensive epitranscriptome decoding.