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Appl Environ Microbiol. 1977 December; 34(6): 668-672

Virus production with a newly developed microcarrier system.

ABSTRACT

Primary cell cultures as well as established lines have been grown on a recently developed microcarrier configuration that overcomes the problem of toxicity attendant on earlier developments in this technology. Virus yields from these cells propagated on the new microcarriers have been measured. Microcarrier-grown cells, when compared to roller-bottle-grown cells, gave virus yields on a per-cell basis that varied from slightly greater with the Sindbis virus-Chinese hamster ovary cells and polio-WI-38 combinations to approximately one-third with Moloney murine leukemia virus-Cl-1 mouse cells and vesicular stomatitis virus-chicken embryo fibroblasts. Yields ranged from 8.0 X 10(7) to 3.6 X 10(8) cells per 100-ml microcarrier culture and from 3.7 X 10(7) to 4.1 X 20(8) cells per roller-bottle culture. Secondary chicken embryo fibroblast yields were approximately four times as great in microcarrier cultures as in standard roller-bottle cultures, per unit volume of medium consumed. In spite of the reduced virus yields per cell seen in some instances, the greater cellular productivity of microcarrier cultures appears to hold great promise for large-scale virus production. Optimizing microcarrier conditions for specific cell-virus systems should result in improved yields.