Akt-ivation of RNA splicing

Area of Science:

• Molecular Biology
• Cellular Biology
• Epigenetics

Background:

• Cellular homeostasis relies on precise control of alternative RNA splicing.
• Dysregulation of RNA splicing is implicated in various diseases.
• Histone modifications play a critical role in regulating gene expression and splicing.

Purpose of the Study:

• To investigate the role of Akt isoforms in regulating alternative RNA splicing.
• To elucidate the mechanism by which Akt isoforms influence RNA splicing machinery.
• To understand the impact of Akt-mediated phosphorylation on histone modifications involved in splicing.

Main Methods:

• Utilized cell-based assays to examine RNA splicing patterns.
• Employed biochemical techniques to study protein-protein interactions and phosphorylation events.
• Investigated the effects of Akt isoform activity on histone modifiers and chromatin structure.

Main Results:

• Demonstrated that Akt isoforms directly phosphorylate components of the histone modification machinery.
• Showed that this phosphorylation alters the activity of histone modifiers, impacting alternative splicing.
• Identified specific Akt isoforms and their targets involved in regulating splicing events.

Conclusions:

• Akt isoforms are key regulators of alternative RNA splicing through direct modulation of histone modification machinery.
• This mechanism provides a novel link between signaling pathways and the epigenetic control of gene expression.
• Findings offer potential therapeutic targets for diseases associated with aberrant RNA splicing and homeostasis.