Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations

As our understanding of molecular mechanisms leading to vascular formation increases, vessel maintenance including stabilization of new vessels and prevention of vessel regression began to be considered as an active process that requires specific cellular signaling. While signaling pathways such as...

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Main Author: Masahiro Murakami
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Vascular Medicine
Online Access:http://dx.doi.org/10.1155/2012/293641
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author Masahiro Murakami
author_facet Masahiro Murakami
author_sort Masahiro Murakami
collection DOAJ
description As our understanding of molecular mechanisms leading to vascular formation increases, vessel maintenance including stabilization of new vessels and prevention of vessel regression began to be considered as an active process that requires specific cellular signaling. While signaling pathways such as VEGF, FGF, and angiopoietin-Tie2 are important for endothelial cell survival and junction stabilization, PDGF and TGF-β signaling modify mural cell (vascular smooth muscle cells and pericytes) functions, thus they fortify vessel integrity. Breakdown of these signaling systems results in pathological hyperpermeability and/or genetic vascular abnormalities such as vascular malformations, ultimately progressing to hemorrhage and edema. Hence, blood vessel maintenance is fundamental to controlling vascular homeostasis and tissue functions. This paper discusses signaling pathways essential for vascular maintenance and clinical conditions caused by deterioration of vessel integrity.
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series International Journal of Vascular Medicine
spelling doaj-art-9ce6b51d78044ebabcca7052dcaa9db52025-02-03T01:28:12ZengWileyInternational Journal of Vascular Medicine2090-28242090-28322012-01-01201210.1155/2012/293641293641Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological ManifestationsMasahiro Murakami0Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06511, USAAs our understanding of molecular mechanisms leading to vascular formation increases, vessel maintenance including stabilization of new vessels and prevention of vessel regression began to be considered as an active process that requires specific cellular signaling. While signaling pathways such as VEGF, FGF, and angiopoietin-Tie2 are important for endothelial cell survival and junction stabilization, PDGF and TGF-β signaling modify mural cell (vascular smooth muscle cells and pericytes) functions, thus they fortify vessel integrity. Breakdown of these signaling systems results in pathological hyperpermeability and/or genetic vascular abnormalities such as vascular malformations, ultimately progressing to hemorrhage and edema. Hence, blood vessel maintenance is fundamental to controlling vascular homeostasis and tissue functions. This paper discusses signaling pathways essential for vascular maintenance and clinical conditions caused by deterioration of vessel integrity.http://dx.doi.org/10.1155/2012/293641
spellingShingle Masahiro Murakami
Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
International Journal of Vascular Medicine
title Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
title_full Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
title_fullStr Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
title_full_unstemmed Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
title_short Signaling Required for Blood Vessel Maintenance: Molecular Basis and Pathological Manifestations
title_sort signaling required for blood vessel maintenance molecular basis and pathological manifestations
url http://dx.doi.org/10.1155/2012/293641
work_keys_str_mv AT masahiromurakami signalingrequiredforbloodvesselmaintenancemolecularbasisandpathologicalmanifestations