Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.

Porous scaffolds are limited in volume due to diffusion constraint and delay of vascular network formation. Channels have the potential to speed up cellular penetration. Their effectiveness in improving angiogenic cell penetration was assessed in vitro and in vivo in 3-D collagen scaffolds. In vitro...

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Main Authors: Yahyouche, A, Zhidao, X, Triffitt, J, Czernuszka, J, Clover, A
Formato: Journal article
Idioma:English
Publicado em: 2013
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author Yahyouche, A
Zhidao, X
Triffitt, J
Czernuszka, J
Clover, A
author_facet Yahyouche, A
Zhidao, X
Triffitt, J
Czernuszka, J
Clover, A
author_sort Yahyouche, A
collection OXFORD
description Porous scaffolds are limited in volume due to diffusion constraint and delay of vascular network formation. Channels have the potential to speed up cellular penetration. Their effectiveness in improving angiogenic cell penetration was assessed in vitro and in vivo in 3-D collagen scaffolds. In vitro, channelled and non-channelled scaffolds were seeded with vascular smooth muscle cells. Results demonstrated that the scaffolds supported angiogenic cell ingrowth in culture and the channels improved the depth of cell penetration into the scaffold (P < 0.05). The cells reside mainly around and migrate along the channels. In vivo, channels increased cell migration into the scaffolds (P < 0.05) particularly angiogenic cells (P < 0.05) resulting in a clear branched vascular network of microvessels after 2 weeks in the channelled samples which was not apparent in the non-channelled samples. Channels could aid production of tissue engineered constructs by offering the possibility of rapid blood vessel infiltration into collagen scaffolds.
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spelling oxford-uuid:2a4bcce6-5d3c-4f20-be63-a46ff910bf9f2022-03-26T12:24:15ZImproved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2a4bcce6-5d3c-4f20-be63-a46ff910bf9fEnglishSymplectic Elements at Oxford2013Yahyouche, AZhidao, XTriffitt, JCzernuszka, JClover, APorous scaffolds are limited in volume due to diffusion constraint and delay of vascular network formation. Channels have the potential to speed up cellular penetration. Their effectiveness in improving angiogenic cell penetration was assessed in vitro and in vivo in 3-D collagen scaffolds. In vitro, channelled and non-channelled scaffolds were seeded with vascular smooth muscle cells. Results demonstrated that the scaffolds supported angiogenic cell ingrowth in culture and the channels improved the depth of cell penetration into the scaffold (P < 0.05). The cells reside mainly around and migrate along the channels. In vivo, channels increased cell migration into the scaffolds (P < 0.05) particularly angiogenic cells (P < 0.05) resulting in a clear branched vascular network of microvessels after 2 weeks in the channelled samples which was not apparent in the non-channelled samples. Channels could aid production of tissue engineered constructs by offering the possibility of rapid blood vessel infiltration into collagen scaffolds.
spellingShingle Yahyouche, A
Zhidao, X
Triffitt, J
Czernuszka, J
Clover, A
Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title_full Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title_fullStr Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title_full_unstemmed Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title_short Improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels.
title_sort improved angiogenic cell penetration in vitro and in vivo in collagen scaffolds with internal channels
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AT zhidaox improvedangiogeniccellpenetrationinvitroandinvivoincollagenscaffoldswithinternalchannels
AT triffittj improvedangiogeniccellpenetrationinvitroandinvivoincollagenscaffoldswithinternalchannels
AT czernuszkaj improvedangiogeniccellpenetrationinvitroandinvivoincollagenscaffoldswithinternalchannels
AT clovera improvedangiogeniccellpenetrationinvitroandinvivoincollagenscaffoldswithinternalchannels