Abstract
Cell lines MDCK (canine kidney), BGM (Buffalo green monkey kidney) and human embryonic lung fibroblast will support viral growth efficiently in medium without serum. Both MRC-5 and WI-38 cell strains have been approved by the Food and Drug Administration for manufacturing viral vaccines against cytomegalovirus and varicella-zoster virus. In this study we examine these two cell lines and viruses for their ability to grow in medium containing a serum replacement. The serum substitute used is LPSR-1 (low protein serum replacement). Using LPSR-1 in defined medium, we demonstrate multipassage cell growth and viral cultivation and replication equivalent to those obtained in medium containing fetal bovine serum (FBS). Viral growth after complete elimination of FBS varies and depends on cell line and virus. Serum substitutes can eliminate FBS in the viral growth phase of vacine production and reduce costs.
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