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Biol Pharm Bull. 2004 Oct;27(10):1594-8.

Saucernetin-8 isolated from Saururus chinensis induced the differentiation of human acute promyelocytic leukemia HL-60 cells.

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College of Pharmacy, Kyung-Hee University, Dongdaemun-Ku, Seoul, Korea.


The present work was performed to investigate the effects of saucernetin-8 on proliferation and differentiation of human leukemia HL-60 cells as well as the underlying mechanisms for these effects. Saucernetin-8 exhibited a potent antiproliferative activity against HL-60 cells. This compound was also found to be a potent inducer of differentiation in human leukemia derived HL-60 cells through the examination of differentiation markers, as assessed by nitroblue tetrazolium reduction test, esterase activity assay, phagocytic activity assay, morphology change, and expression of CD14 and CD66b surface antigens. These results suggest that saucernetin-8 induces the differentiation of human leukemia cells to granulocytes and monocytes/macrophages lineage. Moreover, DNA flow-cytometry indicated that saucernetin-8 induced a G1 phase arrest of HL-60 cells. The protein and mRNA expression levels of p21 were up-regulated during saucernetin-8-dependent HL-60 cell differentiation, whereas the level of c-myc was down-regulated. Taken together, our results suggest that saucernetin-8 may have potential as a therapeutic agent in human leukemia.

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