Activity-Dependent Non-Coding RNA MAPK Interactome of the Human Epileptic Brain

Area of Science:

• Neuroscience
• Genomics
• Molecular Biology

Background:

• Human brain evolution is linked to primate-specific long non-coding RNA (lncRNA) genes.
• lncRNAs are less conserved than protein-coding genes.
• Epilepsy surgery provides unique access to study brain activity's effect on gene expression.

Purpose of the Study:

• To identify and characterize activity-dependent lncRNAs in the human brain.
• To investigate the role of these lncRNAs in the MAPK signaling cascade.
• To explore their potential as therapeutic targets for epilepsy.

Main Methods:

• Analysis of co-regulated, activity-dependent lncRNAs in human brain tissue.
• Electrophysiological recordings from epilepsy surgery resections.
• In vitro depolarization model using human neuronal-like cells (Sh-SY5Y).

Main Results:

• Identified 231 co-regulated, activity-dependent lncRNAs in the MAPK signaling cascade.
• Five of six studied lncRNAs were dependent on electrical activity.
• Three of four antisense lncRNAs showed reciprocal expression with their protein-coding gene partners.

Conclusions:

• Activity-dependent lncRNAs, particularly antisense variants, play a role in human brain regulation.
• These lncRNAs are implicated in primate-specific neural functions.
• Modulating these lncRNAs may offer novel therapeutic strategies for epilepsy.