Cohesin: behind dynamic genome topology and gene expression reprogramming

Area of Science:

• Molecular Biology
• Genetics
• Epigenetics

Background:

• Cohesin's established role in sister chromatid cohesion.
• Emerging evidence highlights cohesin's function in gene expression regulation.
• Chromatin topology and single-cell studies reveal dynamic interactions.

Purpose of the Study:

• To review recent literature on cohesin's role in gene expression.
• To highlight cohesin's function in transcriptional shifts.
• To explore the link between cohesin, gene regulation, and human diseases.

Main Methods:

• Literature review of recent advances in chromatin topology.
• Analysis of single-cell studies on cohesin function.
• Discussion of cohesin's dynamic association and loop extrusion mechanisms.

Main Results:

• Cohesin dynamically associates with chromatin, influencing gene expression.
• Loop extrusion by cohesin contributes to heterogeneous chromatin contacts.
• Specific cohesin subcomplexes regulate gene expression during cell cycle and development.

Conclusions:

• Cohesin is a master regulator of gene expression, impacting transcriptional control.
• Understanding cohesin's dynamic role is crucial for deciphering gene regulation.
• Dysregulation of cohesin is implicated in various human diseases.