Cited by 29Cardiac Fibrosis and RemodelingCardiac Ischemia and ReperfusionNitric Oxide and Endothelin Effects

Circulating NOS3 Modulates Left Ventricular Remodeling following Reperfused Myocardial Infarction

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Gorressen, Simone, Stern, Manuel, van de Sandt, Annette M., Cortese-Krott, Miriam M., Ohlig, Jan, Rassaf, Tienush, Gödecke, Axel, Fischer, Jens W. +3 more·2015·PLOS ONE

Abstract

PURPOSE: Nitric oxide (NO) is constitutively produced and released from the endothelium and several blood cell types by the isoform 3 of the NO synthase (NOS3). We have shown that NO protects against myocardial ischemia/reperfusion (I/R) injury and that depletion of circulating NOS3 increases within 24 h of ischemia/reperfusion the size of myocardial infarction (MI) in chimeric mice devoid of circulating NOS3. In the current study we hypothesized that circulating NOS3 also affects remodeling of the left ventricle following reperfused MI. METHODS: To analyze the role of circulating NOS3 we transplanted bone marrow of NOS3-/- and wild type (WT) mice into WT mice, producing chimerae expressing NOS3 only in vascular endothelium (BC-/EC+) or in both, blood cells and vascular endothelium (BC+/EC+). Both groups underwent 60 min of coronary occlusion in a closed-chest model of reperfused MI. During the 3 weeks post MI, structural and functional LV remodeling was serially assessed (24 h, 4 d, 1 w, 2 w and 3 w) by echocardiography. At 72 hours post MI, gene expression of several extracellular matrix (ECM) modifying molecules was determined by quantitative RT-PCR analysis. At 3 weeks post MI, hemodynamics were obtained by pressure catheter, scar size and collagen content were quantified post mortem by Gomori's One-step trichrome staining. RESULTS: Three weeks post MI, LV end-systolic (53.2±5.9 μl; ***p≤0.001; n = 5) and end-diastolic volumes (82.7±5.6 μl; *p<0.05; n = 5) were significantly increased in BC-/EC+, along with decreased LV developed pressure (67.5±1.8 mm Hg; n = 18; ***p≤0.001) and increased scar size/left ventricle (19.5±1.5%; n = 13; **p≤0.01) compared to BC+/EC+ (ESV: 35.6±2.2 μl; EDV: 69.1±2.6 μl n = 8; LVDP: 83.2±3.2 mm Hg; n = 24; scar size/LV13.8±0.7%; n = 16). Myocardial scar of BC-/EC+ was characterized by increased total collagen content (20.2±0.8%; n = 13; ***p≤0.001) compared to BC+/EC+ (15.9±0.5; n = 16), and increased collagen type I and III subtypes. CONCLUSION: Circulating NOS3 ameliorates maladaptive left ventricular remodeling following reperfused myocardial infarction.

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Authors
Gorressen, S., Stern, M., van de Sandt, A. M., Cortese-Krott, M. M., Ohlig, J., Rassaf, T., Gödecke, A., Fischer, J. W., Heusch, G., Merx, M. W., & Kelm, M.
Affiliations
  • Heinrich Heine University Düsseldorf (DE)
  • West German Heart and Vascular Center Essen (DE)
  • Klinikum Region Hannover (DE)
Corresponding author
Kelm, Malte
Venue
PLOS ONE
Published
2015-04-14
Volume
10
Issue
4
Pages
e0120961
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2001329934
Cited by
29
References
44
Citations by year
2026: 1 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 4 · 2018: 3 · 2017: 3 · 2016: 4
FWCI
2.42
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)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
nitric oxide synthase 3, nitric oxide, myocardial infarction, ischemia-reperfusion injury, left ventricular remodeling, bone marrow transplantation, chimeric mice, vascular endothelium, extracellular matrix, myocardial fibrosis, collagen deposition, myocardial scar, cardiomyocyte proliferation, cardiomyocyte hypertrophy
MeSH terms
Animals, Cicatrix, Collagen, Fibrosis, Male, Mice, Inbred C57BL, Myocardial Infarction, Nitric Oxide, Radiation Chimera, Stroke Volume, Myocardial Reperfusion Injury, Mice, Knockout, Ventricular Dysfunction, Left, Ventricular Remodeling, Mice, Nitric Oxide Synthase Type III

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