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pubmed:abstractText |
Accelerated proliferation of hybridoma cells was observed in the presence of human umbilical cord serum (HUCS). This had very strong growth-promoting activity, even at a concentration of 2%. A comparison was made between HUCS and other B cell growth promoters, such as lipopolysaccharide (LPS) and dextran sulfate (DxS), macrophage supernatant, and human endothelial culture supernatant (HECS). The growth-promoting effect of HUCS was superior. Using a microcytotoxicity assay, we found no significant differences in the number of antibody producing clones with the various culture media, except for fetal calf serum.
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