Molecular Insights into Ischemia-Reperfusion Injury in Coronary Artery Disease: Mechanisms and Therapeutic Implications: A Comprehensive Review

Overview

Journal Antioxidants (Basel)

Date 2025 Feb 26

PMID 40002399

Authors

Sai Nikhila Ghanta

Lakshmi P V Kattamuri

Adetayo Odueke

Jawahar L Mehta

Affiliations

Soon will be listed here.

Abstract

Coronary artery disease remains a leading cause of morbidity and mortality worldwide. Acute myocardial infarction results in ischemia-induced cellular dysfunction and death. While timely reperfusion limits myocardial damage, it paradoxically triggers ischemia-reperfusion injury (IRI), exacerbating tissue damage. IRI, first observed in the 1960s, is mediated by complex molecular pathways, including oxidative stress, calcium dysregulation, endothelial dysfunction, and inflammation. This review examines emerging therapeutic strategies targeting IRI, including ischemic preconditioning, postconditioning, pharmacological agents, and anti-inflammatory therapies. Preconditioning serves as an endogenous protection mechanism, while pharmacological postconditioning has become a more clinically feasible approach to target oxidative stress, inflammation, and apoptosis during reperfusion. Pharmacological agents, such as GSK-3β inhibitors, JNK inhibitors, and mesenchymal stem cell-derived exosomes, have shown promise in modulating molecular pathways, including Wnt/β-catenin and NF-κB, to reduce myocardial injury and enhance recovery. Combination therapies, integrating pharmacological agents with mechanical postconditioning, provide a synergistic approach to further protect tissue and mitigate damage. However, translating preclinical findings to clinical practice remains challenging due to discrepancies between animal models and human conditions, particularly with comorbidities such as diabetes and hypertension. Continued research is essential to refine these therapies, optimize clinical application, and address translational challenges to improve outcomes in IRI.

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