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.
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.
Inhibitory Effect and Mechanism of Jingulian Capsule on Human Breast Cancer MDA-MB-231 Cells
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.
关键词
Keywords
references
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