Integrating Literature-Based Knowledge Database and Expression Data to Explore Molecular Pathways Connecting PPARG...

Area of Science:

• Cardiovascular Biology
• Molecular Medicine
• Genomics

Background:

• Peroxisome proliferator-activated receptor gamma (PPARG) is implicated in myocardial infarction (MI) pathogenesis.
• The precise mechanisms underlying PPARG's role in MI remain incompletely understood.

Purpose of the Study:

• To elucidate the molecular mechanisms connecting PPARG and MI.
• To identify key genes and pathways regulated by PPARG in the context of MI.

Main Methods:

• Construction of a gene network using PPARG and MI-associated genes.
• Mega-analysis of eight Gene Expression Omnibus (GEO) datasets to assess gene expression.
• Gene Set Enrichment Analysis (GSEA) to explore functional pathways.

Main Results:

• PPARG expression was significantly reduced in MI patients (LFC = -0.52; p < 1.84e-9).
• PPARG appears to promote MI inhibitors (SOD1, CAV1, POU5F1) and inhibit MI-upregulated markers (RELA, MYD88).
• Eight key genes were enriched in nutrient and cell metabolic pathways.

Conclusions:

• PPARG plays a protective role in MI development and progression.
• PPARG exerts its protective effects through the regulation of nutrient and metabolic pathways.
• This study identifies novel PPARG-driven molecular targets for MI intervention.