Enhancers on the edge - how the nuclear envelope controls gene regulatory elements.

Area of Science:

• Genomics
• Cell Biology
• Developmental Biology

Background:

• Precise gene expression control relies on physical interactions between regulatory elements and promoters.
• Genome folding in 3D space is critical for these interactions.
• Existing models often overlook the nuclear envelope's role in genome organization.

Purpose of the Study:

• To discuss the nuclear envelope's regulation of tissue-specific enhancer-promoter pairings.
• To explore potential mechanisms underlying this regulation.
• To highlight the link between nuclear envelope dysfunction and human diseases.

Main Methods:

• Review of existing literature on genome organization and nuclear envelope function.
• Analysis of evidence for nuclear envelope regulation of enhancer-promoter interactions.
• Discussion of recent findings on microRNA and long noncoding RNA regulation by the nuclear envelope.

Main Results:

• The nuclear envelope mechanically influences enhancer-promoter interactions.
• It impacts both intra- and inter-topologically associated domain (TAD) interactions.
• Evidence suggests nuclear envelope regulation extends to microRNAs and long noncoding RNAs.

Conclusions:

• The nuclear envelope is a key regulator of gene expression, impacting development and disease.
• Disruption of nuclear envelope regulation is implicated in human diseases.
• Further research into nuclear envelope involvement with condensates and regulatory elements is warranted.