ArticleCardiovascular drugs and therapy2025
Recombinant dsAAV9-mediated Endogenous Overexpression of Macrophage Migration Inhibitory Factor Alleviates Myocardial Ischemia-Reperfusion Injury via Activating AMPK and ERK1/2 Signaling Pathways.
Article in Cardiovascular drugs and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Cardioprotection with Intralipid during CABG.Cardiovascular drugs and therapy · 2026Article
- MicroRNAs and Long Non-coding RNAs Associated With Sirtuin Pathways in Myocardial Ischemia/Reperfusion Injury.Cardiovascular drugs and therapy · 2026Review
- Novel function of macrophage migration inhibitory factor in regulating post-infarct inflammation and the therapeutic significance.Journal of advanced research · 2026Article
- Macrophage migration inhibitory factor in atrial fibrillation.Frontiers in immunology · 2026Review
- miR-101/METTL3 axis induces autophagy by interrupting FOXG1/EIF3J-AS1 binding in gliomas.Cell death & disease · 2025Article
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9 authors.
Funding
Abstract
purposeTo investigate the protective effect and mechanism of enhanced expression of endogenous macrophage migration inhibitory factor (MIF) on cardiac ischemia-reperfusion (I/R) injury.
methodsA recombinant double-stranded adeno-associated virus serotype 9 with MIF or green fluorescent protein (GFP) genes (dsAAV9-MIF/GFP) was transduced into mice and neonatal rat ventricular myocytes (NRVMs). The models of cardiac 60 min ischemia and 24 h reperfusion and 12 h hypoxia/12 h reoxygenation (H/R) were established in mice and NRVMs, respectively. Infarct size, cardiac remodeling, and related signaling pathways were assessed.
resultsThe dsAAV9 vector demonstrated strong transduction efficacy and cardiac affinity. Cardiac overexpression of MIF led to a 35.3% reduction in infarct size and improved cardiac function following I/R injury. In the dsAAV9-MIF group, the AMP-activated protein kinase (AMPK) signaling pathway was activated, and autophagy was enhanced during the ischemic period. During reperfusion, the extracellular signal-regulated kinases 1 and 2 (ERK1/2) signaling pathway was upregulated, leading to reduced cardiac apoptosis. In vitro, transfection with MIF in NRVMs also upregulated AMPK and ERK1/2 signaling during hypoxia and reoxygenation, respectively. Furthermore, MIF overexpression significantly improved autophagy and mitochondrial function, evidenced by an increased LC3-II/I ratio and enhanced mitochondrial membrane potential (ΔΨm), with these effects reversed by the AMPK inhibitor compound C. Additionally, MIF overexpression led to a 60% reduction in the apoptosis rate of cardiomyocytes subjected to H/R and decreased the Bax/Bcl-2 ratio, partially through the ERK1/2 signaling pathway.
conclusionEnhanced endogenous MIF expression via the dsAAV9 vector provides significant cardioprotection against I/R injury by activating the AMPK and ERK1/2 signaling pathways. Our findings suggest that targeting MIF may represent a viable therapeutic strategy for severe and prolonged I/R injury.
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