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Text
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URL Address
<a href="http://doi.org/10.1152/ajpheart.00077.2013" target="_blank" rel="noreferrer noopener">http://doi.org/10.1152/ajpheart.00077.2013</a>
Pages
H1275–1280
Issue
9
Volume
305
Dublin Core
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Title
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The role of mitochondrial bioenergetics and reactive oxygen species in coronary collateral growth.
Publisher
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American journal of physiology. Heart and circulatory physiology
Date
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2013
2013-11
Subject
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*Collateral Circulation; *Coronary Circulation; *Energy Metabolism; *Neovascularization; angiogenesis; Animals; arteriogenesis; Coronary Vessels/metabolism; Humans; mitochondria; Mitochondria; Mitochondrial Proteins/metabolism; Muscle; Muscle/*metabolism; Myocytes; Oxidative Stress; Phenotype; Physiologic; Reactive Oxygen Species/*metabolism; redox-dependent signaling; Signal Transduction; Smooth; Smooth Muscle/*metabolism; Vascular/*metabolism
Creator
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Pung Yuh Fen; Sam Wai Johnn; Hardwick James P; Yin Liya; Ohanyan Vahagn; Logan Suzanna; Di Vincenzo Lola; Chilian William M
Description
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Coronary collateral growth is a process involving coordination between growth factors expressed in response to ischemia and mechanical forces. Underlying this response is proliferation of vascular smooth muscle and endothelial cells, resulting in an enlargement in the caliber of arterial-arterial anastomoses, i.e., a collateral vessel, sometimes as much as an order of magnitude. An integral element of this cell proliferation is the process known as phenotypic switching in which cells of a particular phenotype, e.g., contractile vascular smooth muscle, must change their phenotype to proliferate. Phenotypic switching requires that protein synthesis occurs and different kinase signaling pathways become activated, necessitating energy to make the switch. Moreover, kinases, using ATP to phosphorylate their targets, have an energy requirement themselves. Mitochondria play a key role in the energy production that enables phenotypic switching, but under conditions where mitochondrial energy production is constrained, e.g., mitochondrial oxidative stress, this switch is impaired. In addition, we discuss the potential importance of uncoupling proteins as modulators of mitochondrial reactive oxygen species production and bioenergetics, as well as the role of AMP kinase as an energy sensor upstream of mammalian target of rapamycin, the master regulator of protein synthesis.
Identifier
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<a href="http://doi.org/10.1152/ajpheart.00077.2013" target="_blank" rel="noreferrer noopener">10.1152/ajpheart.00077.2013</a>
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
*Collateral Circulation
*Coronary Circulation
*Energy Metabolism
*Neovascularization
2013
American journal of physiology. Heart and circulatory physiology
angiogenesis
Animals
Arteriogenesis
Chilian William M
Coronary Vessels/metabolism
Department of Integrative Medical Sciences
Di Vincenzo Lola
Hardwick James P
Humans
Logan Suzanna
Mitochondria
Mitochondrial Proteins/metabolism
Muscle
Muscle/*metabolism
Myocytes
NEOMED College of Medicine
Ohanyan Vahagn
Oxidative Stress
Phenotype
Physiologic
Pung Yuh Fen
Reactive Oxygen Species/*metabolism
Redox-dependent signaling
Sam Wai Johnn
Signal Transduction
Smooth
Smooth Muscle/*metabolism
Vascular/*metabolism
Yin Liya