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中国中医科学院 中药研究所,北京 100700
赵丽凤,在读硕士,从事中医药抗白血病研究,E-mail:1585741203@qq.com
刘丽,助理研究员,从事中医药抗白血病研究,E-mail:lliu1990@icmm.ac.cn
谭余庆,研究员,从事中医药抗白血病研究,E-mail:yqtan@icmm.ac.cn
网络出版日期:2020-06-30,
纸质出版日期:2020-09-05
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赵丽凤,李晓强,任汝静等.三氧化二砷联合双氢青蒿素对THP-1细胞增殖及凋亡的影响[J].中国实验方剂学杂志,2020,26(17):42-48.
ZHAO Li-feng,LI Xiao-qiang,REN Ru-jing,et al.Effect of Arsenic Trioxide Combined with Dihydroartemisinin on THP-1 Cells Proliferation and Apoptosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(17):42-48.
赵丽凤,李晓强,任汝静等.三氧化二砷联合双氢青蒿素对THP-1细胞增殖及凋亡的影响[J].中国实验方剂学杂志,2020,26(17):42-48. DOI: 10.13422/j.cnki.syfjx.20201737.
ZHAO Li-feng,LI Xiao-qiang,REN Ru-jing,et al.Effect of Arsenic Trioxide Combined with Dihydroartemisinin on THP-1 Cells Proliferation and Apoptosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(17):42-48. DOI: 10.13422/j.cnki.syfjx.20201737.
目的
2
研究三氧化二砷联合双氢青蒿素对人急性单核细胞白血病(AML)细胞株THP-1细胞增殖、周期及凋亡的影响并探究其作用机制。
方法
2
采用噻唑蓝(MTT)比色法检测三氧化二砷、双氢青蒿素、三氧化二砷联合双氢青蒿素对THP-1细胞增殖的影响,流式细胞术AnnexinV/碘化丙啶(PI)双染实验检测细胞周期和凋亡的变化,蛋白免疫印迹法(Western blot)检测细胞中半胱氨酸蛋白酶-3(Caspase-3),裂解半胱氨酸蛋白酶-3(cleaved Caspase-3),B淋巴细胞瘤-2(Bcl-2)和Bcl-2相关X蛋白(Bax)的表达,在高内涵显微镜下观察药物作用后细胞形态的变化。
结果
2
与空白组比较,不同浓度的三氧化二砷、双氢青蒿素对THP-1细胞的增殖均具有显著抑制作用(
P
<
0.01),且成剂量和时间依懒性;作用48 h,与同等剂量的三氧化二砷或双氢青蒿素单独应用比较,1 µmol·L
-1
三氧化二砷与2 µmol·L
-1
双氢青蒿素联合应用对THP-1细胞增殖的抑制作用显著增强(
P
<
0.01),且细胞阻滞在G
1
期(
P
<
0.01),并显著下调Bcl-2和Caspase-3的表达(
P
<
0.01),同时明显上调cleaved Caspase-3的表达水平(
P
<
0.05)。
结论
2
三氧化二砷联合双氢青蒿素对THP-1细胞具有明显抑制增殖和诱导凋亡的作用,其作用机制可能与阻滞细胞G
1
期,下调Bcl-2和Caspase-3蛋白表达,上调cleaved Caspase-3蛋白表达有关。
Objective
2
To investigate the effects of arsenic trioxide combined with dihydroartemisinin on proliferation
cell cycle
and apoptosis of THP-1 cells
and explore the mechanism.
Method
2
The thiazolyl blue (MTT) method was applied to detect the effect of different concentrations of arsenic trioxide
dihydroartemisinin and arsenic trioxide combined with dihydroartemisinin on the proliferation of THP-1 cells. Annexin V/propidium iodide(PI)assay was used to detect the change of THP-1 cell cycle and apoptosis.Western blot was performed to assess the expression of cysteine protease-3(Caspase-3)
cleaved Caspase-3
B-lymphocytoma-2(Bcl-2) and Bcl-2 associated X protein (Bax). The changes of cell morphology were observed under high intension microscope.
Result
2
Compared with blank group
arsenic trioxide and dihydroartemisinin both exhibited obvious antiproliferative effect on the human acute monocytic leukemia cell line THP-1 in time-dose dependence (
P
<
0.01). After 48 h
compared with the same dose of arsenic trioxide or that of dihydroartemisinin alone
the inhibition effect of 1 µmol·L
-1
arsenic trioxide combined with 2 µmol·L
-1
dihydroartemisinin on proliferation of THP-1 cells was significantly stronger (
P
<
0.01). Compared with the control group
arsenic trioxide combined with dihydroartemisinin significantly arrested the cells in G
1
phase (
P
<
0.01)
induced the downregulation of Caspase-3 and Bcl-2 (
P
<
0.01) and upregulation of cleaved Caspase-3 significantly(
P
<
0.05).
Conclusion
2
Arsenic trioxide combined with dihydroartemisinin can significantly inhibit the proliferation and induce apoptosis of THP-1 cells. The possible mechanism may be related to arrest the cells in G
1
phase
reduce the expression of Caspase-3 and Bcl-2
increase the expression of cleaved Caspase-3.
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