m6A-ELISA, a simple method for quantifying N6-methyladenosine from mRNA populations

Area of Science:

• Epigenetics and RNA Biology
• Molecular Biology Techniques

Background:

• N6-methyladenosine (m6A) is a prevalent RNA modification influencing gene expression, cell physiology, development, and disease.
• Existing methods for genome-wide m6A mapping and quantification are often complex, time-consuming, and limited in sample throughput.
• Quantifying bulk m6A levels typically involves intricate protocols and specialized data analysis.

Purpose of the Study:

• To develop a simplified, rapid, and cost-effective method for determining relative m6A levels in mRNA populations.
• To optimize an enzyme-linked immunosorbent assay (ELISA) for m6A quantification.
• To validate the m6A-ELISA method using diverse biological samples.

Main Methods:

• Development and optimization of an enzyme-linked immunosorbent-based assay (m6A-ELISA) for quantifying m6A levels.
• Optimization focused on sample preparation and reduction of background signal from primary antibodies.
• Validation performed using mRNA populations from budding yeast and mouse embryonic stem cells.

Main Results:

• The developed m6A-ELISA protocol is efficient, taking less than a day to complete.
• The assay requires a minimal amount of starting material (25 ng of mRNA).
• Validation confirmed the method's reliability in quantifying m6A levels in different cell types.

Conclusions:

• The m6A-ELISA provides a quick, cost-effective, and scalable approach for assessing relative m6A levels.
• This method simplifies the study of m6A RNA modifications across various biological sources.
• The m6A-ELISA protocol is adaptable for detecting other mRNA modifications.