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  • Title: The synthesis of Forssman glycolipid in clones of nil 2 hamsters fibroblasts grown in monolayer or spinner culture.
    Author: Sakiyama H, Terasima T.
    Journal: Cancer Res; 1975 Jul; 35(7):1723-6. PubMed ID: 1169114.
    Abstract:
    The amount of Forssman glycolipid (GL-5) was investigated in two clones of Nil hamster cells grown either in monolayer or in spinner culture. GL-5 assayed by the complement-fixation inhibition test increased with increasing cell density in the monolayer. However, cells grown in spinner cultures failed to show the density-dependent response in both clones examined. Cells transformed by hamster sarcoma virus did not show the density-dependent increase of GL-5, even in cells grown in monolayer. The effect of transfer from confluent to sparse cultures on the amount and the synthesis of GL-5 was also examined. It is suggested that the GL-5 that accumulates in cells during confluency is diluted into the daughter cells and that the decrease of the Forssman lipid does not precede cell division.
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