Cited by 143Advanced Glycation End Products researchCardiac Ischemia and ReperfusionCardiac Fibrosis and Remodeling

RAGE modulates myocardial injury consequent to LAD infarction via impact on JNK and STAT signaling in a murine model

Aleshin, Alexey, Ananthakrishnan, Radha, Li, Qing, Rosario, Rosa, Lu, Yan, Qu, Wu, Song, Fei, Bakr, Soliman +7 more·2008·American Journal of Physiology-Heart and Circulatory Physiology

Abstract

The receptor for advanced glycation end-products (RAGE) has been implicated in the pathogenesis of ischemia-reperfusion (I/R) injury in the isolated perfused heart. To test the hypothesis that RAGE-dependent mechanisms modulated responses to I/R in a murine model of transient occlusion and reperfusion of the left anterior descending coronary artery (LAD), we subjected male homozygous RAGE−/− mice and their wild-type age-matched littermates to 30 min of occlusion of the LAD followed by reperfusion. At 48 h of reperfusion, hematoxylin and eosin staining revealed significantly larger infarct size in wild-type versus RAGE−/− mice. Contractile function, as evaluated by echocardiography 48 h after reperfusion, revealed that fractional shortening was significantly higher in RAGE−/− versus wild-type mice. Plasma levels of creatine kinase were markedly decreased in RAGE−/− versus wild-type animals. Integral to the impact of RAGE deletion on diminished myocardial damage after infarction was significantly decreased apoptosis in the heart, as assessed by TUNEL staining, release of cytochrome c, and caspase-3 activity. Experiments investigating the impact of RAGE on early signaling pathways influencing myocardial ischemic injury revealed attenuation of JNK and STAT5 phosphorylation in RAGE−/− mouse hearts versus robust activation observed in wild-type mice upon ischemia and reperfusion. Solidifying the link to RAGE, these experiments revealed that infarction stimulated the rapid production of advanced glycation end-products in the heart. Thus, we tested the effect of ligand decoy soluble RAGE (sRAGE). Administration of sRAGE protected the myocardium from ischemic damage, similar to the effects observed in RAGE−/− mouse hearts. Taken together, these data implicate RAGE and its ligands in the pathogenesis of I/R injury and identify JNK and STAT signal transduction as central downstream effector pathways of the ligand-RAGE axis in the heart subjected to I/R injury.

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Crossref · 10.1152/ajpheart.01210.2007

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Authors
Aleshin, A., Ananthakrishnan, R., Li, Q., Rosario, R., Lu, Y., Qu, W., Song, F., Bakr, S., Szabolcs, M., D'Agati, V., Liu, R., Homma, S., Schmidt, A. M., Yan, S. F., & Ramasamy, R.
Affiliations
Columbia University (US)
Venue
American Journal of Physiology-Heart and Circulatory Physiology
Published
2008-04
Volume
294
Issue
4
Pages
H1823-H1832
ISSN
  • 0363-6135 (ISSN-L)
  • 1522-1539
OpenAlex
W2129075447
Cited by
143
References
30
Citations by year
2026: 3 · 2025: 6 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 8 · 2020: 6 · 2019: 8 · 2018: 5 · 2017: 13 · 2016: 7 · 2015: 16 · 2014: 3 · 2013: 7 · 2012: 13
FWCI
8.24
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Heart and Circulatory Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (P01HL060901, HL 61783, HL60901, R01HL068954, HL68954, R01HL061783)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
receptor for advanced glycation end products, myocardial ischemia-reperfusion injury, left anterior descending artery occlusion, infarct size, JNK signaling, STAT5 signaling, apoptosis, caspase-3, cytochrome c release, advanced glycation end products, soluble RAGE, cardioprotection, RAGE knockout mice
MeSH terms
Receptor for Advanced Glycation End Products, Animals, Coronary Vessels, Disease Models, Animal, Enzyme Activation, Ligands, Ligation, Male, Mice, Inbred C57BL, Myocardial Contraction, Myocardial Infarction, Myocardium, Phosphorylation, Receptors, Immunologic, Time Factors, Signal Transduction, Myocardial Reperfusion Injury, Glycation End Products, Advanced, Apoptosis, Mice, Knockout, JNK Mitogen-Activated Protein Kinases, STAT5 Transcription Factor, Mice, Creatine Kinase, MB Form

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