Exploring Mechanisms of Ephx2 in Treating Atherosclerosis Using Independent Cascade Model and Adverse Outcome...

Area of Science:

• Cardiovascular Biology
• Molecular Mechanisms of Disease
• Pharmacogenomics

Background:

• Atherosclerosis (AS) involves arterial lipid accumulation and is a major cardiovascular disease risk.
• The enzyme Ephx2 (soluble epoxide hydrolase, sEH) plays a role in AS, but its exact functions and therapeutic relevance require further investigation.

Purpose of the Study:

• To analyze gene expression in LDLR knockout mice with and without Ephx2 to find genes linked to AS.
• To construct a gene-protein interaction network and use computational models to understand Ephx2's role in AS pathogenesis.

Main Methods:

• Gene expression data analysis from LDLR knockout and LDLR/sEH double knockout mice.
• Construction of a compound-protein interaction network using KEGG pathways.
• Application of the Independent Cascade (IC) model and resistance distance (RD) to identify Adverse Outcome Pathways (AOPs) and key genes.

Main Results:

• Identification of critical AOPs in AS treatment via Ephx2, including inflammation, cholesterol metabolism, plaque stability, smooth muscle cell activity, and coagulation.
• Discovery of potential target genes within the inflammatory response pathway, such as Mapk3, PiK3cd, Gnai2, Mapk10, Arnt, and RhoA.
• Elucidation of critical pathways connecting Ephx2 to these target genes, suggesting its influence on AS development.

Conclusions:

• The study defined an AS network, revealing Ephx2's mechanisms through KEGG pathways, AOPs, and target genes.
• Enhanced understanding of AS pathogenesis and identification of Mapk3 as a potential therapeutic target for AS prevention and treatment.