Abstract
Despite the high prevalence of ischemic heart diseases worldwide, no antibody-based treatment currently exists. Starting from the evidence that a specific isoform of the Bone Morphogenetic Protein 1 (BMP1.3) is particularly elevated in both patients and animal models of myocardial infarction, here we assess whether its inhibition by a specific monoclonal antibody reduces cardiac fibrosis. We find that this treatment reduces collagen deposition and cross-linking, paralleled by enhanced cardiomyocyte survival, both in vivo and in primary cultures of cardiac cells. Mechanistically, we show that the anti-BMP1.3 monoclonal antibody inhibits Transforming Growth Factor β pathway, thus reducing myofibroblast activation and inducing cardioprotection through BMP5. Collectively, these data support the therapeutic use of anti-BMP1.3 antibodies to prevent cardiomyocyte apoptosis, reduce collagen deposition and preserve cardiac function after ischemia.
© 2022. The Author(s).
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antibodies, Monoclonal / pharmacology*
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Bone Morphogenetic Protein 1 / antagonists & inhibitors
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Bone Morphogenetic Protein 1 / genetics*
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Bone Morphogenetic Protein 1 / metabolism
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Bone Morphogenetic Protein 2 / genetics
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Bone Morphogenetic Protein 2 / metabolism
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Bone Morphogenetic Protein 5 / genetics
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Bone Morphogenetic Protein 5 / metabolism
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Cardiotonic Agents / pharmacology*
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Case-Control Studies
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Cell Survival / drug effects
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Cicatrix / etiology
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Cicatrix / genetics*
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Cicatrix / metabolism
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Cicatrix / prevention & control
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Disease Models, Animal
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Endomyocardial Fibrosis / etiology
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Endomyocardial Fibrosis / genetics*
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Endomyocardial Fibrosis / metabolism
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Endomyocardial Fibrosis / prevention & control
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Fibroblasts / drug effects
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Fibroblasts / metabolism
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Fibroblasts / pathology
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Gene Expression Regulation
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Humans
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Mice
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Mice, Inbred C57BL
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Myocardial Infarction / complications
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Myocardial Infarction / genetics*
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Myocardial Infarction / metabolism
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Myocytes, Cardiac / drug effects
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Myocytes, Cardiac / metabolism
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Myocytes, Cardiac / pathology
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Primary Cell Culture
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Protein Isoforms / genetics
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Protein Isoforms / metabolism
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Rats
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Rats, Sprague-Dawley
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Signal Transduction
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Transforming Growth Factor beta / genetics
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Transforming Growth Factor beta / metabolism
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Troponin T / genetics
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Troponin T / metabolism
Substances
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Antibodies, Monoclonal
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BMP2 protein, human
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BMP5 protein, human
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Bone Morphogenetic Protein 2
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Bone Morphogenetic Protein 5
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Cardiotonic Agents
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Protein Isoforms
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Transforming Growth Factor beta
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Troponin T
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BMP1 protein, human
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Bone Morphogenetic Protein 1