title: The serial cultivation of suspended BHK-21/13 cells in serum-free Waymouth medium.
abstract: A simple medium system was developed to obtain growth of BHK-21 cells in shaker cultures in the absence of serum. These cells have now undergone over 80 serial passages in serum-free Waymouth medium and have been recovered from the frozen state after storage for over 1 month in medium containing 10% dimethyl sulfoxide (DMSO) and 1% bovine serum albumin (BSA). Various amounts of exogenous lipid in the form of sodium oleate were added to cultures of cells growing in serum-free Waymouth medium. Concentrations of 10-50 mug of sodium oleate/ml had no detrimental effects on the cells as measured by trypan blue uptake. Furthermore, the cells were serially passed ten times in the presence of 10 mug sodium oleate/ml. Depletion of calf serum from the growth medium and addition of known quantities of lipids to the system provides a means of revealing subtle changes in lipid synthesis and lipid turnover during cellular growth.
mesh_terms: D002460:Cell Line; D002478:Cells, Cultured / Q000378:metabolism; D003470:Culture Media; D004121:Dimethyl Sulfoxide; D005615:Freezing; D009829:Oleic Acids / Q000378:metabolism; D012710:Serum Albumin, Bovine
chemical_list: D003470:Culture Media; D009829:Oleic Acids; D012710:Serum Albumin, Bovine; D004121:Dimethyl Sulfoxide