Cited by 93Advanced Glycation End Products researchCardiac Ischemia and ReperfusionAcute Kidney Injury Research

RAGE Modulates Hypoxia/Reoxygenation Injury in Adult Murine Cardiomyocytes via JNK and GSK-3β Signaling Pathways

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Shang, Linshan, Ananthakrishnan, Radha, Li, Qing, Quadri, Nosirudeen, Abdillahi, Mariane, Zhu, Zhengbin, Qu, Wu, Rosario, Rosa +4 more·2010·PLoS ONE

Abstract

BACKGROUND: Advanced glycation end-products (AGEs) have been implicated in diverse pathological settings including diabetes, inflammation and acute ischemia/reperfusion injury in the heart. AGEs interact with the receptor for AGEs (RAGE) and transduce signals through activation of MAPKs and proapoptotic pathways. In the current study, adult cardiomyocytes were studied in an in vitro ischemia/reperfusion (I/R) injury model to delineate the molecular mechanisms underlying RAGE-mediated injury due to hypoxia/reoxygenation (H/R). METHODOLOGY/PRINCIPAL FINDINGS: Cardiomyocytes isolated from adult wild-type (WT), homozygous RAGE-null (RKO), and WT mice treated with soluble RAGE (sRAGE) were subjected to hypoxia for 30 minutes alone or followed by reoxygenation for 1 hour. In specific experiments, RAGE ligand carboxymethyllysine (CML)-AGE (termed "CML" in this manuscript) was evaluated in vitro. LDH, a marker of cellular injury, was assayed in the supernatant in the presence or absence of signaling inhibitor-treated cardiomyocytes. Cardiomyocyte levels of heterogeneous AGEs were measured using ELISA. A pronounced increase in RAGE expression along with AGEs was observed in H/R vs. normoxia in WT cardiomyocytes. WT cardiomyocytes after H/R displayed increased LDH release compared to RKO or sRAGE-treated cardiomyocytes. Our results revealed significant increases in phospho-JNK in WT cardiomyocytes after H/R. In contrast, neither RKO nor sRAGE-treated cardiomyocytes exhibited increased phosphorylation of JNK after H/R stress. The impact of RAGE deletion on GSK-3beta phosphorylation in the cardiomyocytes subjected to H/R revealed significantly higher levels of phospho-GSK-3beta/total GSK-3beta in RKO, as well as in sRAGE-treated cardiomyocytes versus WT cardiomyocytes after H/R. Further investigation established a key role for Akt, which functions upstream of GSK-3beta, in modulating H/R injury in adult cardiomyocytes. CONCLUSIONS/SIGNIFICANCE: These data illustrate key roles for RAGE-ligand interaction in the pathogenesis of cardiomyocyte injury induced by hypoxia/reoxygenation and indicate that the effects of RAGE are mediated by JNK activation and dephosphorylation of GSK-3beta. The outcome in this study lends further support to the potential use of RAGE blockade as an adjunctive therapy for protection of the ischemic heart.

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Crossref · 10.1371/journal.pone.0010092

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  • Activation of RAGE by its ligands upregulates inflammatory signalling pathways including NF-κB, phosphoinositide 3-kinase, JAK-STAT and MAPK, leading to induction of pro-inflammatory cytokines such as TNF.

    “Activation of RAGe by its ligands results in the upregulation of several inflammatory signalling pathways, including, but not limited to, NF-κb, phospho inositide 3-kinase, Janus kinase (JAK)–signal transducer and activator of transcription (STAT) and MAPK signalling pathways, which lead to induction of pro-inflammatory cytokines such as TNF19,91,95,96.”

    From Sterile inflammation: sensing and reacting to damage (2010) · cites this paper as [91]

  • RAGE is a transmembrane receptor expressed by immune cells, endothelial cells, cardiomyocytes and neurons.

    “RAGe is a transmembrane receptor that is expressed by immune cells, endothelial cells, cardiomyocytes and neurons89–91.”

    From Sterile inflammation: sensing and reacting to damage (2010) · cites this paper as [91]

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Authors
Shang, L., Ananthakrishnan, R., Li, Q., Quadri, N., Abdillahi, M., Zhu, Z., Qu, W., Rosario, R., Touré, F., Yan, S. F., Schmidt, A. M., & Ramasamy, R.
Affiliations
Columbia University Irving Medical Center (US)
Corresponding author
Ramasamy, Ravichandran
Venue
PLoS ONE
Published
2010-04-09
Volume
5
Issue
4
Pages
e10092
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1965286369
Cited by
93
References
35
Citations by year
2026: 1 · 2025: 5 · 2024: 2 · 2023: 8 · 2022: 3 · 2021: 4 · 2020: 6 · 2019: 7 · 2018: 7 · 2017: 7 · 2016: 6 · 2015: 6 · 2014: 2 · 2013: 9 · 2012: 13
FWCI
5.82
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institute on Aging (P01AG026467, AG026467)
  • National Heart, Lung, and Blood Institute (P01HL060901, HL 61783, HL60901, 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 › Nephrology › Acute Kidney Injury Research
Keywords
receptor for advanced glycation end products, advanced glycation end products, hypoxia/reoxygenation injury, cardiomyocytes, JNK signaling, GSK3β signaling, Akt, carboxymethyllysine, ischemia-reperfusion injury, soluble RAGE, cardiac injury, MAPK signaling, apoptosis, myocardial ischemia-reperfusion injury
MeSH terms
Receptor for Advanced Glycation End Products, Animals, Hypoxia, Ligands, Receptors, Immunologic, Signal Transduction, Reperfusion Injury, Glycation End Products, Advanced, Myocytes, Cardiac, Glycogen Synthase Kinase 3, JNK Mitogen-Activated Protein Kinases, Mice

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