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1.贵州医科大学 省部共建药用植物功效与利用国家重点实验室,贵州省中国科学院天然产物化学重点实验室,贵阳 550014
2.贵州医科大学 大学城医院,贵阳 550025
3.贵航贵阳医院,贵阳 550027
4.湖南省湘西自治州烟草公司永顺县分公司,湖南 湘西自治州 416000
邱剑飞,硕士,住院医师,从事肿瘤药理研究,E-mail:qiujianfei120@163.com
* 李艳梅,博士,研究员,从事肿瘤药理研究,Tel:0851-83834026,E-mail:liyanmei518@hotmail.com
收稿日期:2021-08-31,
网络出版日期:2021-10-26,
纸质出版日期:2021-12-20
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邱剑飞,杨珏,张知音等.金骨莲胶囊对人乳腺癌MDA-MB-231细胞的抑制作用及机制[J].中国实验方剂学杂志,2021,27(24):78-83.
QIU Jian-fei,YANG Jue,ZHANG Zhi-yin,et al.Inhibitory Effect and Mechanism of Jingulian Capsule on Human Breast Cancer MDA-MB-231 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(24):78-83.
邱剑飞,杨珏,张知音等.金骨莲胶囊对人乳腺癌MDA-MB-231细胞的抑制作用及机制[J].中国实验方剂学杂志,2021,27(24):78-83. DOI: 10.13422/j.cnki.syfjx.20212424.
QIU Jian-fei,YANG Jue,ZHANG Zhi-yin,et al.Inhibitory Effect and Mechanism of Jingulian Capsule on Human Breast Cancer MDA-MB-231 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(24):78-83. DOI: 10.13422/j.cnki.syfjx.20212424.
目的
2
研究金骨莲胶囊对人三阴性乳腺癌(TNBC)细胞MDA-MB-231增殖的影响,探讨金骨莲胶囊对TNBC的治疗作用机制。
方法
2
利用超高效液相色谱-质谱联用(UPLC-MS/MS)技术,对金骨莲胶囊的成分进行分析鉴定。通过用噻唑蓝(MTT)比色法观察金骨莲胶囊(0.125,0.25,0.5,1,2 g·L
-1
)对人乳腺癌细胞MDA-MB-231的增殖抑制作用。采用Hoechst 33258染色检测金骨莲胶囊处理MDA-MB-231细胞24 h后的细胞核凋亡形态学的变化。采用流式细胞仪检测金骨莲胶囊不同质量浓度和作用时间对MDA-MB-231细胞凋亡及周期分布情况。通过蛋白免疫印迹法(Western blot)检测各组细胞多聚二磷酸腺苷核糖聚合酶(PARP),原癌基因蛋白(c-Myc),细胞周期蛋白B
1
(cyclin B
1
)和磷酸化胞外信号调节激酶(p-ERK)的蛋白表达水平。
结果
2
该研究利用UPLC-MS/MS技术鉴定了金骨莲胶囊提取物中113个化合物成分。MTT比色法显示,与空白组比较,金骨莲胶囊组(0.125,0.25,0.5,1,2 g·L
-1
)细胞抑制率显著增加(
P
<
0.01),半数抑制浓度(IC
50
)为(0.13±0.02)g·L
-1
;流式细胞术结果显示,与空白组比较,金骨莲胶囊组(1 g·L
-1
)细胞凋亡率显著升高(
P
<
0.01),金骨莲胶囊组(0.5,1 g·L
-1
)细胞处于S期的数量明显增加(
P
<
0.05,
P
<
0.01);Western blot结果显示,与空白组比较,金骨莲胶囊组(0.5,1 g·L
-1
)细胞中的PARP,c-Myc,cyclin B
1
蛋白表达水平显著降低(
P
<
0.01),金骨莲胶囊组(1 g·L
-1
)p-ERK蛋白表达水平显著降低(
P
<
0.01)。
结论
2
金骨莲胶囊可抑制MDA-MB-231细胞增殖,使细胞周期阻滞于S期,并诱导其凋亡,其机制可能与其抑制MDA-MB-231细胞MAPK信号通路有关。
Objective
2
To observe effect of Jingulian capsule on the proliferation of human breast cancer MDA-MB-231 cells and investigate its action mechanism against triple negative breast cancer (TNBC).
Method
2
The ingredients of Jingulian capsule were identified by ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS). The inhibitory effect of Jingulian capsule at different doses (0.125,0.25,0.5,1,and 2 g·L
-1
) against the proliferation of MDA-MB-231 cells were detected by methyl thiazolyl tetrazolium (MTT) assay. After treatment for 24 h, the morphological changes in nuclear apoptosis of MDA-MB-231 cells were detected by Hoechst 33258 staining. The effect of different concentrations of Jingulian capsule on the apoptosis and cycle of MDA-MB-231 cells after different treatment time were determined by flow cytometry. The protein expression levels of Poly-ADP-ribose polymeras (PARP), proto-oncogene c-Myc, cyclin B
1
, and phosphorylated extracellular signal-regulated kinase (p-ERK) in each group were assayed by Western blot.
Result
2
A total of 113 compounds in Jingulian capsule were identified by UPLC-MS/MS. As revealed by MTT assay,compared with blank group,Jingulian capsule (0.125,0.25,0.5,1,2 g·L
-1
) significantly inhibited viability of MDA-MB-231 cells (
P
<
0.01), with the half maximal inhibitory concentration ( IC
50
) of(0.13±0.02)g·L
-1
. According to flow cytometry,compared with the blank group,Jingulian capsule at 1 g·L
-1
significantly induced the apoptosis of MDA-MB-231 cells (
P
<
0.05)and Jingulian capsule at 0.5, 1 g·L
-1
obviously increased the number of MDA-MB-231 cells in S phase (
P
<
0.05,
P
<
0.01). The results of Western blotting demonstrated that the protein expression levels of PARP,c-Myc,and cyclin B
1
in 0.5, 1 g·L
-1
Jingulian capsule groups were remarkably down-regulated as compared with those in the blank group(
P
<
0.01), and the protein expression level of p-ERK in 1 g·L
-1
Jingulian capsule group was also down-regulated (
P
<
0.01).
Conclusion
2
Jingulian capsule is able to inhibit the proliferation of MDA-MB-231 cells,induce S phase cell cycle arrest, and promote their apoptosis, which may be related to the inactivation of the MAPK signaling pathway.
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