Abstract
The spatial development of the cultivation of a bone marrow stromal cell line (SR-4987) in porous carriers was investigated in order to construct a three-dimensional hematopoietic culture system. Low-rate continuous agitation, 20 rpm, was an appropriate method to achieve initial adhesion of cells onto a cellulose porous beads (CPB, 100 μm pore diameter) in a spinner bottle, compared with other methods such as centrifugation and intermittent agitation. Cell growth with continuous agitation at 70 rpm after initial cell adhesion was not inferior to that at 20 rpm. A 2- and 10-fold increase in the inoculum cell concentration for CPB and another type of porous cellulose beads (Micro-cube (MC), 500 μm pore diameter) resulted in a 1.2- and 2-fold increase in final cell concentrationm, respectively. Cells attached to the MC beads and a polyester nonwoven dic (Fibra-cell (FC)) could grow and spread well on the carriers and a fibroblast-like shape was observed under scanning electron microscopy while the cells on CPB were globular. The flatness and inner surface area of these carriers may be the reason for the differences in cell morphology.
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Takagi, M., Sasaki, T. & Yoshida, T. Spatial development of the cultivation of a bone marrow stromal cell line in porous carriers. Cytotechnology 31, 225–231 (1999). https://doi.org/10.1023/A:1008098313067
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DOI: https://doi.org/10.1023/A:1008098313067