Circular RNA: metabolism, functions and interactions with proteins

Area of Science:

• Molecular Biology
• Genomics
• Biochemistry

Background:

• Circular RNAs (CircRNAs) are prevalent RNA molecules with established roles in gene regulation.
• Advances in understanding CircRNA biogenesis, regulation, and function are rapidly emerging.
• Current research on CircRNA-protein interactions remains relatively limited.

Purpose of the Study:

• To review recent progress in CircRNA metabolism and functions.
• To elaborate on the diverse patterns of CircRNA-protein interactions.
• To highlight the potential of CircRNAs as diagnostic biomarkers and therapeutic targets in disease.

Main Methods:

• Literature review of CircRNA metabolism and functions.
• Systematic evaluation of CircRNA-protein interaction mechanisms.
• Analysis of CircRNA roles in various diseases.

Main Results:

• CircRNAs function as transcriptional regulators, miRNA sponges, and protein templates.
• CircRNAs can act as protein decoys, scaffolds, and recruiters.
• CircRNA-protein interactions involve altering protein interactions, protein sequestration, chromatin recruitment, complex formation, and protein translocation.

Conclusions:

• CircRNAs possess unique expression signatures and are implicated in numerous diseases.
• Understanding CircRNA-protein interactions is crucial for elucidating their biological roles.
• CircRNAs hold significant promise for translational medicine as biomarkers and therapeutic targets.