Cited 7 time in webofscience Cited 10 time in scopus

Vascular-Inducing Poly(glycolic acid)-Collagen Nanocomposite-Fiber Scaffold

Title
Vascular-Inducing Poly(glycolic acid)-Collagen Nanocomposite-Fiber Scaffold
Authors
Kobayashi, H[Kobayashi, Hisatoshi]Terada, D[Terada, Dohiko]Yokoyama, Y[Yokoyama, Yoshiro]Moon, DW[Moon, Dae Won]Yasuda, Y[Yasuda, Yoshihiro]Koyama, H[Koyama, Hiroyuki]Takato, T[Takato, Tsuyoshi]
DGIST Authors
Moon, DW[Moon, Dae Won]
Issue Date
2013-08
Citation
Journal of Biomedical Nanotechnology, 9(8), 1318-1326
Type
Article
Article Type
Article
Keywords
AngiogenesisAngiogenesis Inducing AgentsAnimal CellAnimalsBasic Fibroblast Growth FactorBiodegradableBlood VesselsBody FluidCell CultureCells, CulturedChemical StructureCoated Materials, BiocompatibleCollagenDecompositionDegradation KineticsElectric PotentialEndothelial CellsEndothelium CellFibroblastFibroblast Growth Factor 2Flow RateFragmentation ReactionHost CellImplantationInflammationMacrophageMaleMiceModels, BiologicalMolecular ScaffoldNanocompositeNanocomposite NanofibersNanocompositesNanofiberNanofibersNanomaterialNeo-Vascularization (Pathology)Neo-Vascularization, PhysiologicNon-HumanPeripheral Blood VesselsPhagocytosisPoly Glycolic AcidPolyglycolic AcidRatsRats, WistarRegenerative MedicineScaffolds (Biology)Structure AnalysisSwineTissue EngineeringTissue ScaffoldsVascular Endothelial Growth FactorVascular Endothelial Growth Factor AVascularization
ISSN
1550-7033
Abstract
For regenerative medicine with scaffolds, the immediate cellularization of the scaffold accompanied by angiogenesis inside is an important event. Such the aim is generally pursued by combining basic fibroblast growth factor (b-FGF) or vascular endothelial growth factor (VEGF) with the scaffold. In this study, we produced the nanocomposite nanofiber composed of poly(glycolic acid), PGA, and collagen to accomplish the recruitment of host cells and peripheral blood vessels without the bio-derived matter like growth factors. Structural analysis revealed that the fiber has the sheath-core like structure in which the surface region is abundant in PGA and the core region is abundant in collagen. This peculiar fibrous structure probably contributes the fragility of the fiber under the swelling in body fluid. The results of the animal experiment demonstrated that the PGA-collagen nanofiber sponge was entirely populated and vascularized within 5 days after the implantation. We hypothesized that the early fragmentation of the implanted fibrous sponge accelerated the host's inflammation reaction by phagocytized by macrophage, which followed by the recruitment of the fibroblasts and endothelial cells from the host tissue. Designing the suitable nanoscale structure of materials makes cellularization and vascularization of the scaffold possible without bio-derived factors. Copyright © 2013 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2423
DOI
10.1166/jbn.2013.1638
Publisher
American Scientific Publishers
Related Researcher
Files:
There are no files associated with this item.
Collection:
New BiologyETC1. Journal Articles


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