Cited by 57Renin-Angiotensin System StudiesEicosanoids and Hypertension PharmacologyCardiac Fibrosis and Remodeling

Interaction of diabetes and ACE2 in the pathogenesis of cardiovascular disease in experimental diabetes

Tikellis, Chris, Pickering, Raelene, Tsorotes, Despina, Du, Xiao-Jun, Kiriazis, Helen, Nguyen-Huu, Thu-Phuc, Head, Geoffrey A., Cooper, Mark E. +1 more·2012·Clinical Science

Abstract

Local and systemic AngII (angiotensin II) levels are regulated by ACE2 (angiotensin-converting enzyme 2), which is reduced in diabetic tissues. In the present study, we examine the effect of ACE2 deficiency on the early cardiac and vascular changes associated with experimental diabetes. Streptozotocin diabetes was induced in male C57BL6 mice and Ace2-KO (knockout) mice, and markers of RAS (renin-angiotensin system) activity, cardiac function and injury were assessed after 10 weeks. In a second protocol, diabetes was induced in male ApoE (apolipoprotein E)-KO mice and ApoE/Ace2-double-KO mice, and plaque accumulation and markers of atherogenesis assessed after 20 weeks. The induction of diabetes in wild-type mice led to reduced ACE2 expression and activity in the heart, elevated circulating AngII levels and reduced cardiac Ang-(1-7) [angiotensin-(1-7)] levels. This was associated structurally with thinning of the LV (left ventricular) wall and mild ventricular dilatation, and histologically with increased cardiomyocyte apoptosis on TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling) staining and compensatory hypertrophy denoted by an increased cardiomyocyte cross-sectional area. By contrast Ace2-KO mice failed to increase circulating AngII concentration, experienced a paradoxical fall in cardiac AngII levels and no change in Ang-(1-7) following the onset of diabetes. At the same time the major phenotypic differences between Ace2-deficient and Ace2-re…

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Crossref · 10.1042/cs20110668

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  • Ang II binds the ATR1 receptor leading to release of TNFα and IL-6, which is associated with hypertension, diabetes, and heart disease-major comorbidities in severe COVID-19.

    “Ang II binds the ATR1 (Ang II receptor 1) receptor leading to release of TNF α and IL-6, 55 which is associated with hypertension, diabetes, and heart disease 52,56,57 -major comorbidities in severe COVID-19.”

    From COVID-19, Myocarditis and Pericarditis (2023) · cites this paper as [56]

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Authors
Tikellis, C., Pickering, R., Tsorotes, D., Du, X.-J., Kiriazis, H., Nguyen-Huu, T.-P., Head, G. A., Cooper, M. E., & Thomas, M. C.
Affiliations
  • Baker Heart and Diabetes Institute (AU)
  • Baker IDI Heart and Diabetes Institute, PO Box 6492, St Kilda Central, Melbourne 8008, Australia
Venue
Clinical Science
Published
2012-07-03
Volume
123
Issue
8
Pages
519-529
ISSN
  • 0143-5221 (ISSN-L)
  • 1470-8736
OpenAlex
W1973263005
Cited by
57
References
41
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 5 · 2022: 7 · 2021: 8 · 2020: 13 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 6 · 2015: 2 · 2014: 5 · 2013: 2 · 2012: 1
FWCI
2.06
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
ACE2, diabetes mellitus, angiotensin II, renin-angiotensin system, angiotensin-(1-7), atherosclerosis, cardiomyocyte apoptosis, cardiac hypertrophy, left ventricular wall thinning, blood pressure, ApoE-deficient mice, streptozotocin-induced diabetes, cardiovascular disease, adhesion molecules
MeSH terms
Angiotensin-Converting Enzyme 2, Angiotensin II, Animals, Aortic Diseases, Blood Pressure, Cardiovascular Diseases, Diabetes Mellitus, Experimental, Diabetic Angiopathies, Peptidyl-Dipeptidase A, Male, Mice, Inbred C57BL, Myocardium, Telemetry, Biomarkers, Apoptosis, Mice, Knockout, Inflammation Mediators, Mice, Plaque, Atherosclerotic

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