Source:http://linkedlifedata.com/resource/pubmed/id/17709135
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
33
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pubmed:dateCreated |
2007-9-10
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pubmed:abstractText |
Tissue engineering seeks to provide regenerated tissue architectures in vitro but has not yet successfully created thick, highly vascularized, multi-functional tissues replicating native structure. We describe a novel method to fabricate pre-vascularized tissue equivalents using multi-layered cultures combining micro-patterned endothelial cells as vascular pre-cursors with fibroblast monolayer sheets as tissue matrix. Stratified tissue equivalents are constructed by alternately layering fibroblast monolayer sheets with patterned endothelial cell sheets harvested from newly developed thermo-responsive micro-patterned surfaces alternating 20 microm-wide cell-adhesive lanes with 60 microm non-adhesive zones. Cell culture substrates covalently grafted with different thermo-responsive polymers permit spatial switching of cell adhesion and detachment using applied small temperature changes. Endothelial cell patterning fidelity was maintained within the multi-layer tissue constructs after assembly, leading to self-organization into microvascular-like networks after 5-day tissue culture. This novel technique holds promise for the study of cell-cell communications and angiogenesis in reconstructed, three-dimensional environments as well as for the fabrication of tissues with complex, multicellular architecture.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0142-9612
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
4939-46
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pubmed:meshHeading |
pubmed-meshheading:17709135-Biocompatible Materials,
pubmed-meshheading:17709135-Cell Adhesion,
pubmed-meshheading:17709135-Cells, Cultured,
pubmed-meshheading:17709135-Coculture Techniques,
pubmed-meshheading:17709135-Endothelium, Vascular,
pubmed-meshheading:17709135-Fibroblasts,
pubmed-meshheading:17709135-Humans,
pubmed-meshheading:17709135-Image Processing, Computer-Assisted,
pubmed-meshheading:17709135-Imaging, Three-Dimensional,
pubmed-meshheading:17709135-Immunohistochemistry,
pubmed-meshheading:17709135-Microcirculation,
pubmed-meshheading:17709135-Polymers,
pubmed-meshheading:17709135-Surface Properties,
pubmed-meshheading:17709135-Temperature,
pubmed-meshheading:17709135-Tissue Engineering
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pubmed:year |
2007
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pubmed:articleTitle |
Cellular control of tissue architectures using a three-dimensional tissue fabrication technique.
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pubmed:affiliation |
Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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