Abstract
A depth filter perfusion system (DFPS) with polypropylene fibers had been demonstrated to support high density cultures of anchorage-independent hybridoma cells. The DFPS provides advantages of high surface-to-volume ratio of 450–600 cm2/cm3, low cost set-up, easy operation and scale-up. To test the feasibility of using DFPS for high density cultures of anchorage-dependent cells, Vero cells were cultivated in the DFPS. Gelatin coating on polypropylene fibers in the DFPS was necessary to promote cell attachment and growth. Dissolved oxygen (DO) concentrations could be controlled by sparging air into the reservoir vessel through a filter sparger. When DO concentration was controlled above 40% of air saturation in the DFPS with 40 μm pore size, the maximum cell concentration as estimated on specific lactate production rate, was 3.81×107 cells/ml of the total reactor volume. This viable cell concentration is approximately 18 times higher than that obtained in a T-flask batch culture. Taken together, the results obtained here showed the potential of DFPS for high-density cultures of anchorage-dependent cells.
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Choi, S.K., Chang, H.N., Lee, G.M. et al. High cell density perfusion cultures of anchorage-dependent Vero cells in a depth filter perfusion system. Cytotechnology 17, 173–183 (1995). https://doi.org/10.1007/BF00749655
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DOI: https://doi.org/10.1007/BF00749655