| Fluid flow mechanotransduction in vascular smooth muscle cells and fibroblasts. | |
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MedLine Citation:
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PMID: 21479754 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Understanding how vascular wall endothelial cells (ECs), smooth muscle cells (SMCs), and fibroblasts (FBs) sense and transduce the stimuli of hemodynamic forces (shear stress, cyclic strain, and hydrostatic pressure) into intracellular biochemical signals is critical to prevent vascular disease development and progression. ECs lining the vessel lumen directly sense alterations in blood flow shear stress and then communicate with medial SMCs and adventitial FBs to regulate vessel function and disease. Shear stress mechanotransduction in ECs has been extensively studied and reviewed. In the case of endothelial damage, blood flow shear stress may directly act on the superficial layer of SMCs and transmural interstitial flow may be elevated on medial SMCs and adventitial FBs. Therefore, it is also important to investigate direct shear effects on vascular SMCs as well as FBs. The work published in the last two decades has shown that shear stress and interstitial flow have significant influences on vascular SMCs and FBs. This review summarizes work that considered direct shear effects on SMCs and FBs and provides the first comprehensive overview of the underlying mechanisms that modulate SMC secretion, alignment, contraction, proliferation, apoptosis, differentiation, and migration in response to 2-dimensional (2D) laminar, pulsatile, and oscillating flow shear stresses and 3D interstitial flow. A mechanistic model of flow sensing by SMCs is also provided to elucidate possible mechanotransduction pathways through surface glycocalyx, integrins, membrane receptors, ion channels, and primary cilia. Understanding flow-mediated mechanotransduction in SMCs and FBs and the interplay with ECs should be helpful in exploring strategies to prevent flow-initiated atherosclerosis and neointima formation and has implications in vascular tissue engineering. |
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Authors:
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Zhong-Dong Shi; John M Tarbell |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Review Date: 2011-04-09 |
Journal Detail:
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Title: Annals of biomedical engineering Volume: 39 ISSN: 1521-6047 ISO Abbreviation: Ann Biomed Eng Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-05-18 Completed Date: 2011-09-08 Revised Date: 2011-10-03 |
Medline Journal Info:
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Nlm Unique ID: 0361512 Medline TA: Ann Biomed Eng Country: United States |
Other Details:
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Languages: eng Pagination: 1608-19 Citation Subset: IM |
Affiliation:
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Developmental Biology Program, Sloan-Kettering Institute, New York, NY 10065, USA. zdshi@hotmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Blood Flow Velocity Endothelial Cells / metabolism* Fibroblasts / metabolism* Humans Mechanotransduction, Cellular* Models, Cardiovascular* Muscle, Smooth, Vascular / metabolism* Myocytes, Smooth Muscle / metabolism* Stress, Physiological |
| Grant Support | |
ID/Acronym/Agency:
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R01 HL 094889/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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