LI Hui-jie,HONG Kun,LI Xiao-qiang,et al.Effect of Triptonide on Proliferation and Apoptosis of SHI-1 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(03):72-77.
LI Hui-jie,HONG Kun,LI Xiao-qiang,et al.Effect of Triptonide on Proliferation and Apoptosis of SHI-1 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(03):72-77. DOI: 10.13422/j.cnki.syfjx.20210323.
Effect of Triptonide on Proliferation and Apoptosis of SHI-1 Cells
This study aims to investigate the effect of triptonide (TN) on proliferation, cell cycle, apoptosis and expressions of apoptosis-related proteins of human acute monocytic leukemia(AML) cell line SHI-1, and to explore its possible mechanism of action.
Method
2
The thiazolyl blue (MTT) colorimetric assay was applied to detect the inhibitory effect of 20,40,80,160,320 nmol·L
-1
triptonide on the proliferation of SHI-1 cells for 48, 72 h. Changes in SHI-1 cell cycle before and after triptonide treatment were detected by flow cytometry propidium iodide (PI) simple staining, and changes in SHI-1 cell apoptosis before and after triptonide treatment were detected by flow cytometry with AnnexinV/PI double staining. Western blot was applied to detect the protein expression of cysteine protease (Caspase)-3, Caspase-8 and nuclear transcription factor kappaB(NF-
κ
B) in SHI-1 cells before and after treatment with 80, 160 nmol·L
-1
triptonide.
Result
2
Compared with the blank group, 40,80,160,320 nmol·L
-1
triptonide significantly inhibited the proliferation of SHI-1 cells(
P
<
0.01) in a dose-dependent manner for 48, 72 h, while 160, 320 nmol·L
-1
triptonide induced apoptosis of SHI-1 cells(
P
<
0.01) for 48, 72 h, and 160 nmol·L
-1
triptonide could decrease the S phase ratio of SHI-1 cells(
P
<
0.01). In addition, compared with the blank group, 80,160 nmol·L
-1
triptonide induced the downregulation of NF-
κ
B significantly(
P
<
0.01), 160 nmol·L
-1
triptonide induced the downregulation of Caspase-3, Caspase-8 significantly(
P
<
0.01).
Conclusion
2
Triptonide can inhibit the proliferation and induce apoptosis
in vitro
of SHI-1 cells, which may be related to the reduction of the cells in S phase proportion by triptonide, and the downregulation of the expression levels of Caspase-3, Caspase-8 and NF-
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