Induction of differentiation of cultured human promyelocytic leukemia cells by retinoids |
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Authors: | Yoshio Honma Keizo Takenaga Takashi Kasukabe Motoo Hozumi |
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Institution: | Department of Chemotherapy, Saitama Cancer Center Research Institute, Ina-machi, Kitaadachi-gun, Saitama-362, Japan |
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Abstract: | Human promyelocytic leukemia cells (HL-60) were induced to phagocytize, reduce NBT dye(nitroblue tetrazolium), and change into forms that were morphologically similar to mature granulocytes by retinoic acid and related retinoids, but not by the pyridyl analog of retinoic acid. Induction of differentiation could be detected after 4 days of treatment of the cells with retinoic acid at as low a dose as 4 × 10?8 M. Thus, retinoids may be used in studies on the control of cell differentiation and malignancy of human myeloid leukemia cells. |
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