Induction of cell death by 2,4,3',5'-tetramethoxystilbene in human acute promyelocytic leukemia (HL-60) cells and its mechanism.

  • Lee, Sang-Kwang (Department of Immunology, College of Pharmacy, Chung-Ang University) ;
  • Kim, Mie-Young (Department of Immunology, College of Pharmacy, Chung-Ang University) ;
  • Chun, Young-Jin (Department of Immunology, College of Pharmacy, Chung-Ang University)
  • Published : 2003.10.01

Abstract

We have previously shown that 2,4,3',5'-tetramethoxystilbene (TMS), a synthetic trans-stilbene analogue, is one of the most potently selective inhibitor of human cytochrome P450 1B1 in vitro and in vivo. In the present studies, the apoptotic effects of TMS were investigated in HL-60 cells. The effects of TMS on the proliferation of HL-60 cells were determined with MTT assay. TMS exhibited cytotoxicity with an $IC_50$ value of 37 nM. Cotreatment with TMS and etoposide, a well-known anticancer drug significantly enhanced the cytotoxicity. (omitted)

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