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Bone grafts engineered from human adipose-derived stem cells in perfusion bioreactor cultureFröhlich, Mirjam ...We report engineering of half centimeter size bone constructs created in vitrousing human Adipose-derived Stem Cells (hASC), decellularized bone scaffolds and perfusion bioreactors. The hASCs are ... easily accessible, can be used in an autologous fashion, are rapidly expanded in culture, and are capable of osteogenic differentiation. hASCs from four donors were characterized for their osteogenic capacity, and one representative cell population was used for tissue engineering experiments. Culture-expanded hASCswere seeded on fully decellularized native bone scaffolds (4 mm slashed circle x 4 mm) providing the necessary structural and mechanical environment for osteogenic differentiation, and cultured in bioreactors with medium perfusion. The interstitial flow velocity was set to a level necessary to maintain cell viability and function throughout the construct volume (400 mums-1), via enhanced mass transport. After 5 weeks of cultivation, the addition of osteogenic supplements (dexamethasone, sodium-beta-glycerophosphate, ascorbic acid-2-phosphate) to culture medium significantly increased the construct cellularity and the amounts of bone matrix components (collagen, bone sialoprotein, bone osteopontin). Medium perfusion markedly improved the distribution of cells and bone matrix in engineered constructs. In summary, a combination of hASCs, decellularized bonescaffold, perfusion culture and osteogenic supplements resulted in the formation of compact and viable bone tissue constructs.Source: Tissue engineering. Part A.. - ISSN 1937-3341 (Letn. 16, št. 1, 2010, str. 179-189)Type of material - article, component partPublish date - 2010Language - englishCOBISS.SI-ID - 25944537
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Fröhlich, Mirjam | 25484 |
Grayson, WL | |
Marolt Presen, Darja | 22646 |
Gimble, JM | |
Kregar-Velikonja, Nevenka | 16002 |
Vunjak-Novakovic, Gordana |
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