Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans

Marfan syndrome is consequent upon mutations in FBN1, which encodes the extracellular matrix microfibrillar protein fibrillin-1. The phenotype is characterised by development of thoracic aortic aneurysm. Current understanding of the pathogenesis of aneurysms in Marfan syndrome focuses upon abnormal...

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Main Authors: Christopher Yu, Richmond W. Jeremy
Format: Article
Language:English
Published: Elsevier 2018-03-01
Series:International Journal of Cardiology: Heart & Vasculature
Online Access:http://www.sciencedirect.com/science/article/pii/S2352906717300714
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author Christopher Yu
Richmond W. Jeremy
author_facet Christopher Yu
Richmond W. Jeremy
author_sort Christopher Yu
collection DOAJ
description Marfan syndrome is consequent upon mutations in FBN1, which encodes the extracellular matrix microfibrillar protein fibrillin-1. The phenotype is characterised by development of thoracic aortic aneurysm. Current understanding of the pathogenesis of aneurysms in Marfan syndrome focuses upon abnormal vascular smooth muscle cell signalling through the transforming growth factor beta (TGFβ) pathway. Angiotensin II (Ang II) can directly induce aortic dilatation and also influence TGFβ synthesis and signalling. It has been hypothesised that antagonism of Ang II signalling may protect against aortic dilatation in Marfan syndrome. Experimental studies have been supportive of this hypothesis, however results from multiple clinical trials are conflicting. This paper examines current knowledge about the interactions of Ang II and TGFβ signalling in the vasculature, and critically interprets the experimental and clinical findings against these signalling interactions. Keywords: Aneurysm, Angiotensin blocker, Cell Signalling, Clinical trial
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spelling doaj.art-2520899b212649819c40281e22d2b4fc2022-12-22T00:44:30ZengElsevierInternational Journal of Cardiology: Heart & Vasculature2352-90672018-03-01187180Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humansChristopher Yu0Richmond W. Jeremy1Sydney Medical School, University of Sydney, Sydney 2006, AustraliaCorresponding author at: Suite 407, 100 Carillon Avenue, Newtown, NSW 2042, Australia.; Sydney Medical School, University of Sydney, Sydney 2006, AustraliaMarfan syndrome is consequent upon mutations in FBN1, which encodes the extracellular matrix microfibrillar protein fibrillin-1. The phenotype is characterised by development of thoracic aortic aneurysm. Current understanding of the pathogenesis of aneurysms in Marfan syndrome focuses upon abnormal vascular smooth muscle cell signalling through the transforming growth factor beta (TGFβ) pathway. Angiotensin II (Ang II) can directly induce aortic dilatation and also influence TGFβ synthesis and signalling. It has been hypothesised that antagonism of Ang II signalling may protect against aortic dilatation in Marfan syndrome. Experimental studies have been supportive of this hypothesis, however results from multiple clinical trials are conflicting. This paper examines current knowledge about the interactions of Ang II and TGFβ signalling in the vasculature, and critically interprets the experimental and clinical findings against these signalling interactions. Keywords: Aneurysm, Angiotensin blocker, Cell Signalling, Clinical trialhttp://www.sciencedirect.com/science/article/pii/S2352906717300714
spellingShingle Christopher Yu
Richmond W. Jeremy
Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
International Journal of Cardiology: Heart & Vasculature
title Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
title_full Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
title_fullStr Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
title_full_unstemmed Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
title_short Angiotensin, transforming growth factor β and aortic dilatation in Marfan syndrome: Of mice and humans
title_sort angiotensin transforming growth factor β and aortic dilatation in marfan syndrome of mice and humans
url http://www.sciencedirect.com/science/article/pii/S2352906717300714
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