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  • Title: Effects of prostaglandins E1, E2, and F2alpha on the growth of leukaemia cells in culture.
    Author: Yang TJ, Dale JB, Machanoff R.
    Journal: J Cell Sci; 1976 Jan; 20(1):199-206. PubMed ID: 1249120.
    Abstract:
    Prostaglandins E1, E2, and F2alpha (PGE1, PGE2, and PGF2alpha) were shown to inhibit the growth of mouse leukaemia lymphoblasts L5178Y in culture. The effects of PGE1 and PGE2 were greater than that of PGF2alpha. PGE1 and PGE2, at the concentration of 100 mug per ml showed significant inhibitory effects on the rates of incorporation of tritiated thymidine, uridine and leucine. At concentrations of 50 and 25 mug per ml, there was significant inhibition of thymidine and uridine incorporation, but not of leucine, PGF2alpha showed significant inhibition of thymidine and uridine incorporation but not leucine incorporation, in all 3 concentrations studied (100, 50, and 25 mug/ml). The ability of the cells to form colonies in soft agar was significantly inhibited by PGE1 and PGE2 at concentrations as low as 1-8 mug/ml. For F2alpha, however, a concentration as high as 56mug/ml was required to show inhibitory effect, but at 1-8 mug/ml it was found to be stimulatory.
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