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  • Title: Antiproliferative effect of interleukin 1 (IL-1) on tumor cells: G0-G1 arrest of a human melanoma cell line by IL-1.
    Author: Morinaga Y, Hayashi H, Takeuchi A, Onozaki K.
    Journal: Biochem Biophys Res Commun; 1990 Nov 30; 173(1):186-92. PubMed ID: 2256913.
    Abstract:
    Interleukin 1 (IL-1) has been shown to have antiproliferative or cytocidal effects on several tumor cell lines and this effect is closely related to the induction of terminal differentiation of the target tumor cells. In this study we analyzed the antiproliferative effect of recombinant human IL-1 alpha on a human melanoma cell line A375 in relation to cell cycle. Nutrient-starved cells, most of which were in G0 + G1, were stimulated by culturing in fresh medium, causing them to enter S. IL-1 treatment induced a slight decrease in the first cell cycle progression from G0 + G1 to S. In addition IL-1 retarded progression of the cells through G2M and inhibited progression of the second cell cycle from G0 + G1 to S. Therefore we concluded that IL-1 exerts its antiproliferative effect by arresting the cells in G0 + G1.
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