Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.

Cancer is often associated with cachexia, cardiovascular symptoms and autonomic dysregulation. We tested whether extracardiac cancer directly affects the innervation of left ventricular myocardium. Mice injected with Lewis lung carcinoma cells (tumor group, TG) or PBS (control group, CG) were analyz...

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Autores principales: Christian Mühlfeld, Suman Kumar Das, Frank R Heinzel, Albrecht Schmidt, Heiner Post, Silvia Schauer, Tamara Papadakis, Wolfgang Kummer, Gerald Hoefler
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Publicado: Public Library of Science (PLoS) 2011
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Acceso en línea:https://doaj.org/article/f9d2dd92aea9406e8427fa1f3dd5d3c9
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spelling oai:doaj.org-article:f9d2dd92aea9406e8427fa1f3dd5d3c92021-11-18T06:53:10ZCancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.1932-620310.1371/journal.pone.0020424https://doaj.org/article/f9d2dd92aea9406e8427fa1f3dd5d3c92011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21637823/?tool=EBIhttps://doaj.org/toc/1932-6203Cancer is often associated with cachexia, cardiovascular symptoms and autonomic dysregulation. We tested whether extracardiac cancer directly affects the innervation of left ventricular myocardium. Mice injected with Lewis lung carcinoma cells (tumor group, TG) or PBS (control group, CG) were analyzed after 21 days. Cardiac function (echocardiography), serum levels of TNF-α and Il-6 (ELISA), structural alterations of cardiomyocytes and their innervation (design-based stereology) and levels of innervation-related mRNA (quantitative RT-PCR) were analysed. The groups did not differ in various functional parameters. Serum levels of TNF-α and Il-6 were elevated in TG. The total length of axons in the left ventricle was reduced. The number of dense core vesicles per axon profile was reduced. Decreased myofibrillar volume, increased sarcoplasmic volume and increased volume of lipid droplets were indicative of metabolic alterations of TG cardiomyocytes. In the heart, the mRNA level of nerve growth factor was reduced whereas that of β1-adrenergic receptor was unchanged in TG. In the stellate ganglion of TG, mRNA levels of nerve growth factor and neuropeptide Y were decreased and that of tyrosine hydroxylase was increased. In summary, cancer induces a systemic pro-inflammatory state, a significant reduction in myocardial innervation and a catabolic phenotype of cardiomyocytes in the mouse. Reduced expression of nerve growth factor may account for the reduced myocardial innervation.Christian MühlfeldSuman Kumar DasFrank R HeinzelAlbrecht SchmidtHeiner PostSilvia SchauerTamara PapadakisWolfgang KummerGerald HoeflerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 5, p e20424 (2011)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Christian Mühlfeld
Suman Kumar Das
Frank R Heinzel
Albrecht Schmidt
Heiner Post
Silvia Schauer
Tamara Papadakis
Wolfgang Kummer
Gerald Hoefler
Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
description Cancer is often associated with cachexia, cardiovascular symptoms and autonomic dysregulation. We tested whether extracardiac cancer directly affects the innervation of left ventricular myocardium. Mice injected with Lewis lung carcinoma cells (tumor group, TG) or PBS (control group, CG) were analyzed after 21 days. Cardiac function (echocardiography), serum levels of TNF-α and Il-6 (ELISA), structural alterations of cardiomyocytes and their innervation (design-based stereology) and levels of innervation-related mRNA (quantitative RT-PCR) were analysed. The groups did not differ in various functional parameters. Serum levels of TNF-α and Il-6 were elevated in TG. The total length of axons in the left ventricle was reduced. The number of dense core vesicles per axon profile was reduced. Decreased myofibrillar volume, increased sarcoplasmic volume and increased volume of lipid droplets were indicative of metabolic alterations of TG cardiomyocytes. In the heart, the mRNA level of nerve growth factor was reduced whereas that of β1-adrenergic receptor was unchanged in TG. In the stellate ganglion of TG, mRNA levels of nerve growth factor and neuropeptide Y were decreased and that of tyrosine hydroxylase was increased. In summary, cancer induces a systemic pro-inflammatory state, a significant reduction in myocardial innervation and a catabolic phenotype of cardiomyocytes in the mouse. Reduced expression of nerve growth factor may account for the reduced myocardial innervation.
format article
author Christian Mühlfeld
Suman Kumar Das
Frank R Heinzel
Albrecht Schmidt
Heiner Post
Silvia Schauer
Tamara Papadakis
Wolfgang Kummer
Gerald Hoefler
author_facet Christian Mühlfeld
Suman Kumar Das
Frank R Heinzel
Albrecht Schmidt
Heiner Post
Silvia Schauer
Tamara Papadakis
Wolfgang Kummer
Gerald Hoefler
author_sort Christian Mühlfeld
title Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
title_short Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
title_full Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
title_fullStr Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
title_full_unstemmed Cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
title_sort cancer induces cardiomyocyte remodeling and hypoinnervation in the left ventricle of the mouse heart.
publisher Public Library of Science (PLoS)
publishDate 2011
url https://doaj.org/article/f9d2dd92aea9406e8427fa1f3dd5d3c9
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