Production of mosquito densonucleosis viruses by Aedes albopictus C6/36 cells adapted to suspension culture in serum-free protein-free media |
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Authors: | Suchman Erica Carlson Jonathan |
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Institution: | Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523-1682, USA. Erica.suchman@colostate.edu |
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Abstract: | Mosquito densonucleosis viruses (MDVs) have the potential for use as biocontrol agents. To facilitate densovirus production, the Aedes albopictus mosquito cell line C6/36 was adapted to two commercially available serum-free protein-free media (SFPFM), Sf-900 II and Drosophila-SFM. Cells adapted more slowly to growth in Sf-900 II medium, but once adapted, they grew more rapidly and appeared healthier than cells growing in Drosophila-SFM. Cells that were adapted to growth in each of these SFPFM were tested for their ability to be transfected and infected with MDVs. The Sf-900 II-adapted cell line survived transfection and showed infection rates comparable with cells growing in L15 supplemented with 10% fetal bovine serum. Cells adapted to Drosophila-SFM were less infectable and did not survive transfection. Cells adapted to each of these SFPFM were adapted to growth in spinner flasks. Cells in Sf-900 II grew substantially better in spinner flasks than cells in Drosophila-SFM media. Cells grown in Sf-900 II could be frozen and, when thawed, could support the production of densonucleosis viruses in spinner flasks. |
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