Transcriptogenomics identification and characterization of RNA editing sites in human primary monocytes using...

Area of Science:

• Genomics
• Molecular Biology
• Epigenetics

Background:

• RNA editing is crucial for transcriptome diversity.
• High-depth sequencing enables detailed analysis of RNA editing events.
• Understanding RNA editing in specific cell types like monocytes is important.

Purpose of the Study:

• To identify and characterize RNA editing events at the cellular level in human primary monocytes.
• To develop and validate a sensitive pipeline for detecting RNA editing events.
• To compare RNA editing profiles between monocytes and brain tissues.

Main Methods:

• High-depth whole genome and transcriptome sequencing of human primary monocytes.
• Genome sequence-independent approach for analyzing RNA editing.
• Analysis of both single and multiple human monocyte and brain tissue samples.

Main Results:

• Over ten thousand putative RNA editing sites identified in monocytes.
• 69% of identified sites were Adenosine-to-Inosine (A-to-I) editing events.
• 90% of canonical sites showed low editing frequencies (<0.7).
• Monocytes exhibited more Cytosine-to-Uracil (C-to-U) editing sites compared to brain tissues.
• Genome sequence-independent approach identified more editing sites.

Conclusions:

• A robust pipeline for sensitive detection of RNA editing events in single cell types has been established.
• The study provides insights into the landscape and characteristics of RNA editing in human monocytes.
• Comparative analysis highlights cell-type-specific differences in RNA editing, such as C-to-U editing in monocytes.