Cited by 245Cardiac Fibrosis and RemodelingCardiovascular Function and Risk FactorsCardiomyopathy and Myosin Studies

Minimally invasive aortic banding in mice: effects of altered cardiomyocyte insulin signaling during pressure overload

Hu, Ping, Zhang, Dongfang, Swenson, LeAnne, Chakrabarti, Gopa, Abel, E. Dale, Litwin, Sheldon E.·2003·American Journal of Physiology-Heart and Circulatory Physiology

Abstract

We developed a minimally invasive method for producing left ventricular (LV) pressure overload in mice. With the use of this technique, we quickly and reproducibly banded the transverse aorta with low surgical morbidity and mortality. Minimally invasive transverse aortic banding (MTAB) acutely and chronically increased LV systolic pressure, increased heart weight-to-body weight ratio, and induced myocardial fibrosis. We used this technique to determine whether reduced insulin signaling in the heart altered the cardiac response to pressure overload. Mice with cardiac myocyte-restricted knockout of the insulin receptor (CIRKO) have smaller hearts than wild-type (WT) controls. Four weeks after MTAB, WT and CIRKO mice had comparably increased LV systolic pressure, increased cardiac mass, and induction of mRNA for β-myosin heavy chain and atrial natriuretic factor. However, CIRKO hearts were more dilated, had depressed LV systolic function by echocardiography, and had greater interstitial fibrosis than WT mice. Expression of connective tissue growth factor was increased in banded CIRKO hearts compared with WT hearts. Thus lack of insulin signaling in the heart accelerates the transition to a more decompensated state during cardiac pressure overload. The use of the MTAB approach should facilitate the study of the pathophysiology and treatment of pressure-overload hypertrophy.

Integrity signals

Registry

Crossref · 10.1152/ajpheart.00108.2003

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45 of 45 references verified0 citation errors · 0 not checkable

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  • Insulin receptor-deficient hearts have increased susceptibility to injury when exposed to hypertrophic stimuli such as pressure overload and chronic adrenergic stimulation with isoproterenol.

    “Insulin receptor-deficient hearts also have increased susceptibility to injury when exposed to hypertrophic stimuli such as pressure overload and chronic adrenergic stimulation with isoproterenol (150, 231).”

    From Cardiac remodeling in obesity (2008) · cites this paper as [150]

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Authors
Hu, P., Zhang, D., Swenson, L., Chakrabarti, G., Abel, E. D., & Litwin, S. E.
Affiliations
University of Utah (US)
Venue
American Journal of Physiology-Heart and Circulatory Physiology
Published
2003-09
Volume
285
Issue
3
Pages
H1261-H1269
ISSN
  • 0363-6135 (ISSN-L)
  • 1522-1539
OpenAlex
W2153616813
Cited by
245
References
44
Citations by year
2026: 6 · 2025: 8 · 2024: 8 · 2023: 6 · 2022: 10 · 2021: 11 · 2020: 8 · 2019: 9 · 2018: 8 · 2017: 14 · 2016: 10 · 2015: 16 · 2014: 10 · 2013: 17 · 2012: 16
FWCI
4.39
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Heart and Circulatory Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r03dk058073-03)
  • U.S. Public Health Service (U01-70525)
  • National Heart, Lung, and Blood Institute (T32-HL-7576, HL-52338-06, P50HL052338, T32HL007576)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK58073, R01DK092065)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
Keywords
left ventricular pressure overload, cardiac hypertrophy, myocardial fibrosis, connective tissue growth factor, beta-myosin heavy chain, atrial natriuretic peptide, cardiac remodeling, heart failure
MeSH terms
Animals, Aorta, Blood Pressure, Disease Models, Animal, Fibrosis, Insulin, Male, Mice, Inbred C57BL, Myocardial Contraction, Signal Transduction, Hypertrophy, Left Ventricular, Ventricular Pressure, Myocytes, Cardiac, Mice

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