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Use of embryonic stem (ES) cells in regenerative medicine requires the development of robust clinically relevant bioprocesses for the production of ES-derived cells. We improved upon current mouse ES cell culture methods by developing a serum-free defined culture system amenable to controlled cytokine delivery. We enhanced blood development by specifying the quantity and timing of bone morphogenetic protein (BMP)-4, vascular endothelial growth factor and thrombopoietin exposure. We also developed a cytokine delivery system for growing embryoid bodies (EBs) based on the binding of BMP-4 to functionalized agarose microcapsules. We demonstrated that immobilized BMP-4 can be delivered to the developing EB, inducing at least 60% of the cells to express mesoderm-associated markers. These results suggest that this delivery system could be used for the development of scalable bioengineered niche for EB-based blood generation. This process represents a cost effective and robust platform for generating ES cell-derived functional cell types.
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Local microenvironmental control of developing embryoid bodies into hematopoietic progenitor cells in a serum-free defined culture condition.
2005
in English
0494071109 9780494071106
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Source: Masters Abstracts International, Volume: 44-02, page: 0960.
Thesis (M.A.Sc.)--University of Toronto, 2005.
Electronic version licensed for access by U. of T. users.
ROBARTS MICROTEXT copy on microfiche.
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