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Characterization of novel akermanite:poly-ϵ-caprolactone scaffolds for human adipose-derived stem cells bone tissue engineering
Journal of tissue engineering and regenerative medicine, 2015-04, Vol.9 (4), p.389-404
Zanetti, AS
McCandless, GT
Chan, JY
Gimble, JM
Hayes, DJ
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Zanetti, AS
McCandless, GT
Chan, JY
Gimble, JM
Hayes, DJ
Titel
Characterization of novel akermanite:poly-ϵ-caprolactone scaffolds for human adipose-derived stem cells bone tissue engineering
Ist Teil von
Journal of tissue engineering and regenerative medicine, 2015-04, Vol.9 (4), p.389-404
Ort / Verlag
England: Blackwell Publishing Ltd
Erscheinungsjahr
2015
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
In this study, three different akermanite:poly‐ϵ‐caprolactone (PCL) composite scaffolds (wt%: 75:25, 50:50, 25:75) were characterized in terms of structure, compression strength, degradation rate and in vitro biocompatibility to human adipose‐derived stem cells (hASC). Pure ceramic scaffolds [CellCeramTM, custom‐made, 40:60 wt%; β‐tricalcium phosphate (β‐TCP):hydroxyapatite (HA); and akermanite] and PCL scaffolds served as experimental controls. Compared to ceramic scaffolds, the authors hypothesized that optimal akermanite:PCL composites would have improved compression strength and comparable biocompatibility to hASC. Electron microscopy analysis revealed that PCL‐containing scaffolds had the highest porosity but CellCeramTM had the greatest pore size. In general, compression strength in PCL‐containing scaffolds was greater than in ceramic scaffolds. PCL‐containing scaffolds were also more stable in culture than ceramic scaffolds. Nonetheless, mass losses after 21 days were observed in all scaffold types. Reduced hASC metabolic activity and increased cell detachment were observed after acute exposure to akermanite:PCL extracts (wt%: 75:25, 50:50). Among the PCL‐containing scaffolds, hASC cultured for 21 days on akermanite:PCL (wt%: 75:25) discs displayed the highest viability, increased expression of osteogenic markers (alkaline phosphatase and osteocalcin) and lowest IL‐6 expression. Together, the results indicate that akermanite:PCL composites may have appropriate mechanical and biocompatibility properties for use as bone tissue scaffolds. Copyright © 2012 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 1932-6254
eISSN: 1932-7005
DOI: 10.1002/term.1646
Titel-ID: cdi_proquest_miscellaneous_1673372214
Format
–
Schlagworte
adipose tissue
,
Adipose Tissue - cytology
,
Adipose Tissue - metabolism
,
akermanite
,
Antigens, Differentiation - biosynthesis
,
bone regeneration
,
Cell Differentiation
,
Ceramics - chemistry
,
composite scaffold
,
Humans
,
Osteogenesis
,
poly-ϵ-caprolactone
,
Polyesters - chemistry
,
stem cells
,
Stem Cells - cytology
,
Stem Cells - metabolism
,
Tissue Engineering
,
Tissue Scaffolds - chemistry
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