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Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo

BACKGROUND: The murine homologue of human vasohibin (mVASH1), a putative antiangiogenic protein, was investigated for its effects on in vitro and in vivo angiogenesis. METHODS: Cell growth and migration were analyzed in murine fibroblasts, smooth muscle cells and endothelial cells. Angiogenic sprout...

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Autores principales: Kern, Johann, Steurer, Michael, Gastl, Günther, Gunsilius, Eberhard, Untergasser, Gerold
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2739223/
https://www.ncbi.nlm.nih.gov/pubmed/19682397
http://dx.doi.org/10.1186/1471-2407-9-284
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author Kern, Johann
Steurer, Michael
Gastl, Günther
Gunsilius, Eberhard
Untergasser, Gerold
author_facet Kern, Johann
Steurer, Michael
Gastl, Günther
Gunsilius, Eberhard
Untergasser, Gerold
author_sort Kern, Johann
collection PubMed
description BACKGROUND: The murine homologue of human vasohibin (mVASH1), a putative antiangiogenic protein, was investigated for its effects on in vitro and in vivo angiogenesis. METHODS: Cell growth and migration were analyzed in murine fibroblasts, smooth muscle cells and endothelial cells. Angiogenic sprouting was studied in human umbilical vein endothelial cells (HUVECs) in the spheroid sprouting assay. In vivo effects on blood vessel formation were investigated in the chorioallantoic membrane (CAM) assay and in the C57BL/6 melanoma xenograft model. RESULTS: Purified murine and human VASH1 protein induced apoptosis of murine fibroblasts in vitro, but not of vascular aortic smooth muscle cells (AoSMC) or endothelial cells. Adenoviral overexpression of murine and human VASH1 inhibited capillary sprouting of HUVECs in the spheroid assay. Administration of recombinant murine and human VASH1 inhibited growth of large vessels in the CAM assay and promoted the formation of a dense, fine vascular network. Murine VASH1-overexpressing B16F10 melanomas displayed a reduction in large vessels and vascular area. Moreover, tumors showed more microvessels that stained positive for the mural cell markers α-smooth muscle cell actin (ASMA) and proteoglycan (NG2). CONCLUSION: Our data imply that murine VASH1 causes angiogenic remodelling by inhibiting angiogenic sprouting and large vessel growth, thereby supporting the formation of a vascular bed consisting predominantly of mature microvessels.
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spelling pubmed-27392232009-09-08 Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo Kern, Johann Steurer, Michael Gastl, Günther Gunsilius, Eberhard Untergasser, Gerold BMC Cancer Research Article BACKGROUND: The murine homologue of human vasohibin (mVASH1), a putative antiangiogenic protein, was investigated for its effects on in vitro and in vivo angiogenesis. METHODS: Cell growth and migration were analyzed in murine fibroblasts, smooth muscle cells and endothelial cells. Angiogenic sprouting was studied in human umbilical vein endothelial cells (HUVECs) in the spheroid sprouting assay. In vivo effects on blood vessel formation were investigated in the chorioallantoic membrane (CAM) assay and in the C57BL/6 melanoma xenograft model. RESULTS: Purified murine and human VASH1 protein induced apoptosis of murine fibroblasts in vitro, but not of vascular aortic smooth muscle cells (AoSMC) or endothelial cells. Adenoviral overexpression of murine and human VASH1 inhibited capillary sprouting of HUVECs in the spheroid assay. Administration of recombinant murine and human VASH1 inhibited growth of large vessels in the CAM assay and promoted the formation of a dense, fine vascular network. Murine VASH1-overexpressing B16F10 melanomas displayed a reduction in large vessels and vascular area. Moreover, tumors showed more microvessels that stained positive for the mural cell markers α-smooth muscle cell actin (ASMA) and proteoglycan (NG2). CONCLUSION: Our data imply that murine VASH1 causes angiogenic remodelling by inhibiting angiogenic sprouting and large vessel growth, thereby supporting the formation of a vascular bed consisting predominantly of mature microvessels. BioMed Central 2009-08-17 /pmc/articles/PMC2739223/ /pubmed/19682397 http://dx.doi.org/10.1186/1471-2407-9-284 Text en Copyright ©2009 Kern et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Kern, Johann
Steurer, Michael
Gastl, Günther
Gunsilius, Eberhard
Untergasser, Gerold
Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title_full Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title_fullStr Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title_full_unstemmed Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title_short Vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
title_sort vasohibin inhibits angiogenic sprouting in vitro and supports vascular maturation processes in vivo
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2739223/
https://www.ncbi.nlm.nih.gov/pubmed/19682397
http://dx.doi.org/10.1186/1471-2407-9-284
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