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1.中国中医科学院 望京医院,北京 100102
2.中国中医科学院 广安门医院,北京 100053
朱冬菊,在读博士,从事中西医结合治疗肿瘤的基础与临床研究,E-mail:1969631601@qq.com
张平,博士,主任医师,从事中西医结合治疗肿瘤的基础与临床研究,E-mail:pinglele@sina.com
收稿日期:2022-01-26,
网络出版日期:2022-04-29,
纸质出版日期:2022-11-20
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朱冬菊,朴炳奎,秦腾腾等.基于PI3K/Akt信号通路探讨固本解毒方含药血清对肺癌A549细胞EMT的影响[J].中国实验方剂学杂志,2022,28(22):93-99.
ZHU Dongju,PIAO Bingkui,QIN Tengteng,et al.Effect of Guben Jiedu Prescription-medicated Serum on Epithelial-mesenchymal Transition of Lung Cancer A549 Cells: Based on PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(22):93-99.
朱冬菊,朴炳奎,秦腾腾等.基于PI3K/Akt信号通路探讨固本解毒方含药血清对肺癌A549细胞EMT的影响[J].中国实验方剂学杂志,2022,28(22):93-99. DOI: 10.13422/j.cnki.syfjx.20221329.
ZHU Dongju,PIAO Bingkui,QIN Tengteng,et al.Effect of Guben Jiedu Prescription-medicated Serum on Epithelial-mesenchymal Transition of Lung Cancer A549 Cells: Based on PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(22):93-99. DOI: 10.13422/j.cnki.syfjx.20221329.
目的
2
观察固本解毒方对肺癌A549细胞上皮间质转化(EMT)的影响,从磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)信号通路探讨其作用机制。
方法
2
制备固本解毒方含药血清,噻唑蓝(MTT)比色法检测细胞存活率并筛选固本解毒方浓度用于后续实验。分为空白组、固本解毒方组(2.5%、5%、10%含药血清)、PI3K/Akt通路激活剂(SC79)组、固本解毒方+SC79组。划痕实验检测细胞迁移力,蛋白免疫印迹法(Western blot)检测E-钙黏蛋白(E-cadherin)、N-钙黏蛋白(N-cadherin)、波形蛋白(Vimentin)、蛋白激酶B(Akt)、磷酸化(p)-Akt、糖原合成酶激酶-3
β
(GSK-3
β
)、p-GSK-3
β
蛋白表达,实时荧光定量聚合酶链式反应(Real-time PCR)检测N-cadherin、Vimentin mRNA表达。
结果
2
与空白组比较,固本解毒方组含药血清(2.5%、5%、10%、20%、40%)A549细胞活力降低(
P<
0.05),选择固本解毒方含药血清10%、5%、2.5%作为高、中、低浓度进行后续实验。与空白组比较,固本解毒方组A549细胞迁移力降低。Real-time PCR结果显示,与空白组比较,固本解毒方组A549细胞N-cadherin、Vimentin mRNA表达显著降低(
P
<
0.01)。Western blot结果显示,与空白组比较,固本解毒方组(含药血清5%、10%)A549细胞E-cadherin蛋白表达显著升高(
P
<
0.01),固本解毒方组N-cadherin、Vimentin、p-Akt、p-GSK-3
β
蛋白表达显著降低(
P
<
0.01),p-Akt/Akt、p-GSK-3
β
/GSK-3
β
表达明显降低(
P
<
0.05,
P
<
0.01)。与SC79组比较,固本解毒方组(含药血清10%)E-cadherin蛋白表达显著升高(
P
<
0.01),N-cadherin、Vimentin、p-Akt、p-GSK-3
β、
p-Akt/Akt、p-GSK-3
β
/GSK-3
β
表达显著降低(
P<
0.01)。与固本解毒方组(含药血清10%)比较,固本解毒方+SC79组(含药血清10%)E-cadherin蛋白表达显著降低(
P<
0.01),N-cadherin、Vimentin、p-Akt、p-GSK-3
β、
p-Akt/Akt、p-GSK-3
β
/GSK-3
β
蛋白表达显著升高(
P
<
0.01)。
结论
2
固本解毒方可抑制肺癌A549细胞迁移和EMT,其机制与调控PI3K/Akt信号通路有关。
Objective
2
To observe the effect of Guben Jiedu prescription (GBJ) on the epithelial-mesenchymal transition (EMT) of lung cancer A549 cells and to explore the mechanism based on phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway.
Method
2
The GBJ-medicated serum was prepared. Cell viability was detected by methyl thiazolyl tetrazolium (MTT) assay to screen the optimal doses of GBJ-medicated serum for further experiment. A549 cells were classified into normal serum group, low-, medium-, and high-dose GBJ-medicated serum groups (2.5%, 5%, and 10% GBJ-medicated serum), PI3K/Akt pathway activator SC79 group, and high-dose GBJ-medicated serum + SC79 group. Cell migration ability was measured by wound-healing assay. The protein expression of E-cadherin, N-cadherin, vimentin, Akt, phosphorylated Akt (p-Akt), glycogen synthase kinase-3
β
(GSK-3
β
), and phosphorylated GSK-3
β
(p-GSK-3
β
) was detected by Western blotting, and the mRNA expression of N-cadherin and vimentin by Real-time PCR.
Result
2
Compared with the normal serum, GBJ-medicated serum (2.5%, 5%, 10%, 20%, 40%) decreased the viability of A549 cells (
P
<
0.05), and 10%, 5%, 2.5% GBJ-medicated serum was respectively selected for the follow-up experiment. The migration ability of cells in the high-, medium-, and low-dose GBJ-medicated serum groups was lower than that in the normal serum group. The expression of N-cadherin mRNA and Vimentin mRNA in A549 cells in the three GBJ-medicated serum groups was significantly lower than that in the normal serum group (
P
<
0.01). The protein expression of E-cadherin was higher in the high- and medium-dose GBJ-medicated serum groups than in the normal serum group (
P
<
0.01). The three GBJ-medicated serum groups showed lower protein expression of N-cadherin, vimentin, p-Akt, and p-GSK-3
β
(
P
<
0.01) and lower expression of p-Akt/Akt, p-GSK-3
β
/GSK-3
β
(
P
<
0.05,
P
<
0.01) than normal serum group. Compared with the SC79 group, the high-dose GBJ-medicated serum group demonstrated high protein expression of E-cadherin (
P
<
0.01) and low expression of N-cadherin, vimentin, p-Akt, p-GSK-3
β
, and p-Akt/Akt, p-GSK-3
β
/GSK-3
β
(
P
<
0.01). Compared with the high-dose GBJ-medicated serum group, high-dose GBJ-medicated serum + SC79 group showed low protein expression of E-cadherin (
P
<
0.01) and high protein expression of N-cadherin, vimentin, p-Akt, p-GSK-3
β
, p-Akt/Akt, and p-GSK-3
β
/GSK-3
β
(
P
<
0.01).
Conclusion
2
GBJ can inhibit the migration and EMT of lung cancer A549 cells by regulating the PI3K/Akt signaling pathway.
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