Relationship Between the Pyroptosis Pathway and Epilepsy: A Bioinformatic Analysis

Area of Science:

• Neuroscience
• Molecular Biology
• Bioinformatics

Background:

• Epilepsy pathogenesis remains incompletely understood.
• The pyroptosis pathway, a form of programmed cell death, has been implicated in various neurological disorders.
• Gasdermin D (GSDMD) and Gasdermin E (GSDME) are critical executioners of pyroptosis.

Purpose of the Study:

• To investigate the correlation between the pyroptosis pathway and epilepsy using bioinformatics.
• To analyze the expression of GSDMD and GSDME in a mouse model of epilepsy.

Main Methods:

• Weighted gene co-expression network analysis (WGCNA) to identify epilepsy-related gene modules.
• Gene Ontology (GO) annotation and correlation analysis with known epilepsy genes.
• Differential gene expression (DEG) analysis of pyroptosis-related molecules.
• Kainic acid-induced status epilepticus (SE) mouse model validation using qRT-PCR and Western blotting for GSDMD and GSDME.

Main Results:

• A significant epilepsy-associated gene module enriched in immune and inflammatory processes was identified.
• Most pyroptosis-related molecules, including GSDMD, showed increased expression post-SE.
• GSDMD mRNA and protein levels were significantly upregulated in the hippocampus after SE.
• While GSDME mRNA levels remained unchanged, its full-length protein decreased and N-terminus increased post-SE.

Conclusions:

• The pyroptosis pathway is strongly implicated in epilepsy.
• GSDMD and GSDME are key molecular players in epilepsy pathogenesis.
• These findings suggest GSDMD and GSDME as potential therapeutic targets for epilepsy treatment.