1.贵州医科大学药学院,贵阳 550025
2.贵州省中国科学院天然产物化学重点实验室,贵阳 550014
3.贵州医科大学医药卫生管理学院,贵阳 550025
Received:05 July 2022,
Revised:2022-12-15,
Published:15 January 2023
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韦学耐,杨坤,刘琴,等.徐长卿中的天然产物XCQ-9对Jurkat细胞增殖和凋亡的影响及机制研究[J].中国药房,2023,34(01):47-51.
WEI Xuenai,YANG Kun,LIU Qin,et al.Study on the effect of natural compound XCQ-9 of Cynanchum paniculatum on the proliferation and apoptosis of Jurkat cell and its mechanism[J].ZHONGGUO YAOFANG,2023,34(01):47-51.
韦学耐,杨坤,刘琴,等.徐长卿中的天然产物XCQ-9对Jurkat细胞增殖和凋亡的影响及机制研究[J].中国药房,2023,34(01):47-51. DOI: 10.6039/j.issn.1001-0408.2023.01.09.
WEI Xuenai,YANG Kun,LIU Qin,et al.Study on the effect of natural compound XCQ-9 of Cynanchum paniculatum on the proliferation and apoptosis of Jurkat cell and its mechanism[J].ZHONGGUO YAOFANG,2023,34(01):47-51. DOI: 10.6039/j.issn.1001-0408.2023.01.09.
目的
2
探讨徐长卿中天然产物XCQ-9抑制人急性T淋巴细胞白血病Jurkat细胞增殖和凋亡的作用及可能机制。
方法
2
以Jurkat细胞作为白血病细胞模型,采用MTT法测定0(空白对照)、2.5、5、10、20、40 μmol/L XCQ-9作用24、48、72 h后对Jurkat细胞增殖的抑制作用。用0(空白对照)、2.5、5、10 μmol/L XCQ-9作用于Jurkat细胞24、48 h后,利用流式细胞术分析XCQ-9对细胞周期和细胞凋亡的影响,并通过Western blot实验检测上述药物作用24 h后细胞中胱天蛋白酶9(Caspase-9)、活化的Caspase-9(Cleaved Caspase-9)、Caspase-3、活化的Caspase-3(Cleaved Caspase-3)、聚腺苷二磷酸-核糖聚合酶(PARP)、活化的PARP(Cleaved PARP)、细胞周期蛋白依赖性激酶1(CDK1)和细胞周期蛋白B1(Cyclin B1)的表达情况。
结果
2
与空白对照比较,不同浓度XCQ-9均可显著降低Jurkat细胞的存活率(
P
<0.01),并呈时间和浓度依赖性趋势。5、10 μmol/L XCQ-9作用48 h后均可显著诱导Jurkat细胞凋亡(
P
<0.05或
P
<0.01),将细胞周期阻滞在G
2
期(
P
<0.01)。10 μmol/L XCQ-9作用24 h后,可显著下调细胞中CDK1、Caspase-9蛋白的表达(
P
<0.01),上调细胞中Cyclin B1、Cleaved Caspase-9、Cleaved Caspase-3和Cleaved PARP蛋白的表达(
P
<0.05或
P
<0.01)。
结论
2
XCQ-9通过诱导G
2
期阻滞抑制Jurkat细胞增殖,并激活Caspase通路促进细胞凋亡,从而发挥其抗肿瘤作用。
OBJECTIVE
2
To investigate the inhibitory effect of natural compound XCQ-9 of
Cynanchum paniculatum
on the proliferation and apoptosis of Jurkat cell line of human T-cell acute lymphoblastic leukemia and its possible mechanism.
METHODS
2
Jurkat cell was used as the leukemia cell model, and MTT assay was adopted to detect the inhibitory effects of 0(blank control), 2.5, 5, 10, 20 and 40 μmol/L XCQ-9 on the proliferation of Jurkat cell after treated for 24, 48, 72 h. After treated with 0 (blank control), 2.5, 5, 10 μmol/L XCQ-9 for 24 h and 48 h, the cell cycle and apoptosis were analyzed by flow cytometry. The expressions of Caspase-9, Cleaved Caspase-9, Caspase-3, Cleaved Caspase-3, poly ADP-ribose poly-merase (PARP), Cleaved-PARP, cyclin-dependent kinase 1 (CDK1) and Cyclin B1 were detected by Western blot after treated for 24 h.
RESULTS
2
Compared with blank control group, XCQ-9 at different concentrations could significantly decrease the survival rate of Jurkat cells (
P
<0.01), and showed a dose and time-dependent manner. After 48 h treatment of 5, 10 μmol/L XCQ-9, Jurkat cell apoptosis was induced significantly (
P
<0.05 or
P
<0.01), and the cell was arrested in G
2
phase (
P
<0.01). After 24 h treatment of 10 μmol/L XCQ-9, the protein expressions of CDK1 and Caspase-9 were remarkably down-regulated (
P
<0.01), while the protein expressions of Cyclin B1, Cleaved Caspase-9, Cleaved Caspase-3 and Cleaved PARP were significantly up-regulated (
P
<0.05 or
P
<0.01).
CONCLUSIONS
2
XCQ-9 plays anti-tumor effect through inducing G
2
phase arrest to inhibit proliferation and activating Caspase pathway to increase apoptosis.
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