Effects of artesunate combined with bortezomib on apoptosis and autophagy of acute myeloid leukemia cells in vitro and its mechanism
10.3760/cma.j.issn.0253-2727.2019.03.008
- VernacularTitle: 青蒿琥酯联合硼替佐米对急性髓系白血病细胞体外凋亡、自噬的影响及其作用机制
- Author:
Lianjie HU
1
;
Tao JIANG
2
;
Fujue WANG
1
;
Shihua HUANG
3
;
Xiaomin CHENG
4
;
Yongqian JIA
1
Author Information
1. Department of Hematology, Hematology Laboratory, Western China Hospital, Sichuan University, Chengdu 610041, China
2. Department of Hematology, The People's Hospital of Sichuan Province, Chengdu 610072, China
3. Department of Hematology, The Second People's Hospital of Yibin, Yibin 644000, Sichuan Province, China
4. Department of Hematology, Chengdu Military General Hospital, Chengdu 610083, China
- Publication Type:Journal Article
- Keywords:
Leukemia, myeloid, acute;
Artesunate;
Bortezomib;
MV4-11 cell lines;
Bcl-2 family proteins
- From:
Chinese Journal of Hematology
2019;40(3):204-208
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects of artesunate combined with bortezomib on the proliferation, apoptosis and autophagy of human acute myeloid leukemia cell lines MV4-11, and its mechanisms.
Methods:MTT method was used to determine the anti-proliferation effect of different concentrations of artesunate, bortezomib and their combination on MV4-11 cells. The cell apoptosis were analyzed by flow cytometry. The expression of cleaved-Caspase-3, Bcl-2 family protein (Bcl-2, Mcl-1, Bim, Bax) and autophagy-related protein LC3B were assayed by Western blot.
Results:Artesunate displayed a proliferation inhibition effect on MV4-11 with dose- and time-dependent manner, the IC50 of artesunate on MV4-11 after 48 hours was 1.44 μg/ml. Bortezomib displayed a proliferation inhibition effect on MV4-11 with dose-dependent manner, the IC50 of bortezomib on MV4-11 after 48 hours was 8.97 nmol/L. The combination of artesunate (0.75, 1.0 μg/ml) and Bortezomib (6, 8 nmol/L) showed higher inhibition on MV4-11 than artesunate or bortezomib alone in the same concentration gradient after 48 hours (P<0.05) . The cooperation index of the two drugs were all less than 1. The 48 h apoptotic rate of artesunate (1.5 μg/ml) on MV4-11 was (15.27±2.18) %, (19.85±3.23) % of bortezomib (8 nmol/L) , (81.67±5.96) % of combination of the two drugs, significantly higher than the single group (P<0.05) . When combination of the two drugs on MV4-11 after 24 hours, the levels of pro-apoptotic protein Bim and the cleaved activation of Caspase-3 and autophagy-related protein LC3B were up-regulated and the anti-apoptotic protein Bcl-2 expressions was down-regulated.
Conclusion:Combination of artesunate with bortezomib shows a significant synergistic effects on proliferation, apoptosis and autophagy of MV4-11 cell lines, which may be associated with Bcl-2 family proteins expression.
