beta-elemene enhances aclarubicin-induced apoptotic effect in HL-60 cells and its mechanism..
- Author:
Cui-Ping ZHENG
1
;
Xiang-Min TONG
;
Hang-Ping YAO
;
Jun YANG
;
Jie XU
;
Xiao-Ping CAI
;
Zheng LIU
Author Information
- Publication Type:Journal Article
- MeSH: Aclarubicin; Apoptosis; drug effects; Cell Line, Tumor; Down-Regulation; HL-60 Cells; Humans; NF-kappa B; metabolism
- From: Chinese Journal of Hematology 2009;30(12):821-824
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore the effects of beta-elemene combined with aclarubicin on the induction of HL-60 cell apoptosis and its mechanisms in antileukemia therapy.
METHODSHL-60 cells were treated for 20 hours with different dose of aclarubicin (0.05, 0.10, 0.25 microg/ml) or with different concentrations of beta-elemene (10, 20, 40 microg/ml) in the presence or absence of aclarubicin (0.10 microg/m). The apoptotic rate was analyzed by flow cytometry (FCM), the productions of PGE2 in culture supernatants was detected by competitive ELISA and the expressions of COX-2 and NF-kappaB activity in HL-60 cells by Western blot.
RESULTSLower concentration of aclarubicin (0.05, 0.10 microg/ml) didn't affect apoptotic rate, and COX-2, NF-kappa B and PGE2 expression on HL-60 cells. Combined treatment of beta-elemene and aclarubicin (0.10 microg/ml) enhanced the apoptotic effect and down-regulated COX-2, NF-kappaB and PGE2 expressions. There was a positive correlation between the effects and beta-elemene concentrations.
CONCLUSIONbeta-elemene enhances aclarubicin-mediated apoptotic effect, down-regulation of COX-2 and their inducing products PGE2 in HL-60 cells by suppressing activitation of NF-kappaB.