Yang-zhuang-zhuang ZHU, Fei ZHANG, Xiao-ning JIAO, et al. Effect of Aloesin on Proliferation and Apoptosis of Non-small Cell Lung Cancer A549 Cells. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(14):13-18(2019)
DOI:
Yang-zhuang-zhuang ZHU, Fei ZHANG, Xiao-ning JIAO, et al. Effect of Aloesin on Proliferation and Apoptosis of Non-small Cell Lung Cancer A549 Cells. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(14):13-18(2019) DOI: 10.13422/j.cnki.syfjx.20191323.
Effect of Aloesin on Proliferation and Apoptosis of Non-small Cell Lung Cancer A549 Cells
To study the mechanism of aloesin in inducing apoptosis in human non-small cell lung cancer (NSCLC) A549 cells
so as to inhibit its proliferation.
Method:
2
A549 cells in logarithmic growth phase were collected
and cell counting kit-8 (CCK-8) was used to detect the effect of different concentrations of aloesin (2
4
8
16
32
64
128 μmol·L
-1
) on the proliferation of A549. Effect of aloesin (0
16 μmol·L
-1
) on the number of clones formed in A549 cells and the size of clone formation was determined by crystal violet staining. effect of aloesin on apoptosis of A549 cells was detected by annexin V/propidium iodide(PI)apoptosis kit staining. Hoechst staining was used to detect the phenomenon of apoptotic nuclear pyknosis. Western blot was used to detect aloesin's effect on death-related protein expressions of Bcl-xl/Bcl-2 associated death promoter (Bad)
cleaved-Caspase-3
cl-Caspase-3(Asp175)
Caspase-3
cleaved poly ADP-ribose polymerase (cl-PARP)
poly ADP-ribose polymerase (PARP) in A549 cells.
In vivo
5-week-old nude mice were subcutaneously inoculated with 2×10
6
A549 cells
and randomly divided into the medication group and the blank group. aloesin or normal saline was intraperitoneally injected for 4 weeks
and the tumor volume of nude mice was measured weekly. The body weight of the mice was observed
and the appearance of the nude mice was observed.
Result:
2
Aloesin inhibited the proliferation and cloning of A549 cells in a concentration-dependent manner (
P
<
0.05). After treatment with aloesin
the number of apoptosis and the phenomenon of nuclear pyknosis in A549 cells increased significantly (
P
<
0.01). At the same time
aloesin significantly down-regulated the expression of apoptosis-related protein Bcl-xl (
P
<
0.05)
and increased the expression of Bad protein (
P
<
0.01). The expression levels of cl-PARP (
P
<
0.01) and cl-Caspase-3 (
P
<
0.05) were also significantly increased. In addition
in vivo
aloesin significantly shrank the volume of subcutaneous tumors in mice
reduced tumor weight
with a better appearance than that of the control group.
Conclusion:
2
Aloesin may inhibit the expression of NSCLC by inducing apoptosis of A549 cells
and is safe to use
with no inhibitory effect on the body weight of mice.
关键词
芦荟苦素非小细胞肺癌抑制细胞增殖细胞凋亡
Keywords
aloesinnon-small cell lung cancerinhibition of cell proliferationapoptosis
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