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1.湖北中医药大学,武汉 430061
2.武汉市中医医院,武汉 430014
3.武汉大学 中南医院,武汉 430071
王熙,在读博士,主治医师,从事中西医结合防治恶性肿瘤研究,E-mail:5330992@ qq.com
张莹雯,博士,博士生导师,主任医师,从事中西医结合防治肿瘤研究,E-mail:hhao3838@ sina.com
收稿日期:2021-11-13,
网络出版日期:2021-12-28,
纸质出版日期:2022-03-20
移动端阅览
王熙,张莹雯.基于PI3K/Akt信号通路探讨乌梅丸含药血清对胰腺癌细胞增殖、侵袭、迁移和凋亡的影响[J].中国实验方剂学杂志,2022,28(06):34-42.
WANG Xi,ZHANG Ying-wen.Effect of Wumeiwan-medicated Serum on Proliferation, Invasion, Migration, Apoptosis of Pancreatic Cancer Cells Based on PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(06):34-42.
王熙,张莹雯.基于PI3K/Akt信号通路探讨乌梅丸含药血清对胰腺癌细胞增殖、侵袭、迁移和凋亡的影响[J].中国实验方剂学杂志,2022,28(06):34-42. DOI: 10.13422/j.cnki.syfjx.20220529.
WANG Xi,ZHANG Ying-wen.Effect of Wumeiwan-medicated Serum on Proliferation, Invasion, Migration, Apoptosis of Pancreatic Cancer Cells Based on PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(06):34-42. DOI: 10.13422/j.cnki.syfjx.20220529.
目的
2
观察乌梅丸含药血清对人胰腺癌SW1990细胞增殖、侵袭、迁移和凋亡的影响,同时探讨其可能的作用机制。
方法
2
制备乌梅丸含药血清,体外培养胰腺癌细胞株SW1990,采用细胞增殖与活性检测(CCK-8)法筛选乌梅丸含药血清最佳作用时间用于后续实验;将SW1990细胞分为空白组和乌梅丸低、中、高组(含药血清2%、4%、8%),利用平板克隆实验、细胞划痕实验和细胞侵袭实验分别检测其克隆形成、迁移和侵袭能力;流式细胞术检测乌梅丸含药血清对胰腺癌SW1900细胞凋亡的影响;通过蛋白免疫印迹法(Western blot)检测SW1990细胞中凋亡相关蛋白,B细胞淋巴瘤-2(Bcl-2),Bcl-2相关X蛋白(Bax),细胞色素C(Cyt C),活化的半胱氨酸天冬氨酸蛋白水解酶-3(cleaved Caspase-3)、cleaved Caspase-9,磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt)通路中PI3K,磷酸化(p)-PI3K,Akt,磷酸化(p)-Akt蛋白表达水平。
结果
2
与空白组比较,作用72 h,乌梅丸低、中、高组吸光度
A
显著降低(
P
<
0.01),与乌梅丸低组比较,乌梅丸中、高组
A
均显著降低(
P
<
0.01),与乌梅丸中组比较,乌梅丸高组
A
显著降低(
P
<
0.01),说明乌梅丸作用72 h可呈剂量依赖性抑制SW1990细胞增殖能力,药物最佳作用时间为72 h;与空白组比较,乌梅丸低、中、高组SW1990细胞侵袭能力显著减弱(
P
<
0.01),且呈浓度依赖性;与空白组比较,乌梅丸低、中、高组细胞克隆形成能力、迁移能力均有下降(
P
<
0.05,
P
<
0.01),且呈浓度依赖性;与空白组比较,乌梅丸低、中、高组细胞的总凋亡率显著升高(
P
<
0.01),乌梅丸诱导凋亡作用随给药剂量增加而增强;与空白组比较,乌梅丸低、中、高组Bcl-2蛋白表达显著降低(
P
<
0.01),cleaved Caspase-3,cleaved Caspase-9,Cyt C,Bax蛋白表达升高(
P
<
0.05,
P
<
0.01),且呈现出一定的量效关系;与空白组比较,乌梅丸低、中、高组p-PI3K,p-Akt蛋白表达均有减少(
P
<
0.05,
P
<
0.01),且随着剂量的增加,蛋白表达逐渐降低,p-PI3K/PI3K,p-Akt/Akt明显降低(
P
<
0.05,
P
<
0.01),且随着剂量的增加,比值逐渐降低。
结论
2
乌梅丸能明显抑制胰腺癌SW1990细胞的恶性生物学行为,诱导细胞凋亡,其机制可能与抑制PI3K/Akt信号通路,下调PI3K/Akt通路中的蛋白磷酸化水平有关。
Objective
2
To observe the effects of Wumeiwan-medicated serum on the proliferation, invasion, migration, and apoptosis of human pancreatic cancer SW1990 cells and explore the underlying mechanism.
Method
2
The Wumeiwan-medicated serum was prepared and the pancreatic cancer SW1990 cell line was cultured
in vitro
. The optimal time of Wumeiwan-medicated serum was selected for subsequent experiments by cell counting kit-8(CCK-8). SW1990 cells were divided into a control group and low- (2%), medium- (4%), and high-dose (8%) Wumeiwan-medicated serum groups. The colony-forming, migration, and invasion abilities were detected by clonogenic assay, wound healing assay, and transwell migration assay. Flow cytometry was used to detect the effect of Wumeiwan-medicated serum on the apoptosis of pancreatic cancer SW1900 cells. Western blot was used to detect the expression levels of apoptosis-related proteins, such as B-cell lymphoma-2(Bcl-2), Bcl-2-associated X protein (Bax), cytochrome C (Cyt C), cleaved cysteinyl aspartate-specific protease-3 (cleaved Caspase-3), cleaved cysteinyl aspartate-specific protease-9 (cleaved Caspase-9), as well as phosphatidylinositol 3-kinase(PI3K), phosphorylated PI3K(p-PI3K), protein kinase B (Akt), and phosphorylated Akt(p-Akt)in PI3K/Akt pathway in SW1990 cells.
Result
2
Compared with blank group, Wumeiwan groups showed decreased absorbance (
A
) 72 h after drug intervention (
P
<
0.01). Compared with the low-dose group, the medium- and high-dose groups showed decreased
A
(
P
<
0.01). Compared with the medium-dose group, the high-dose group showed decreased
A
(
P
<
0.01). It indicates that Wumeiwan can inhibit SW1990 cell proliferation in a dose-dependent manner after 72 h, and the optimal action time is 72 h. Compared with the blank group, the Wumeiwan groups showed weakened invasion of SW1990 cells (
P
<
0.01), reduced colony-forming and migration abilities (
P
<
0.05,
P
<
0.01) in a dose-dependent manner, and increased total apoptosis rates (
P
<
0.01). The inducing effect of Wumeiwan on apoptosis increased with the increase in dosage. Compared with the blank group, the Wumeiwan groups showed decreased protein expression of Bcl-2 (
P
<
0.01), increased protein expression of cleaved Caspase-3, cleaved Caspase-9, Cyt C, and Bax (
P
<
0.05,
P
<
0.01) in a certain dose-effect relationship, reduced protein expression of p-PI3K and p-Akt (
P
<
0.05,
P
<
0.01) with the increase in dosage, and declining p-PI3K/PI3K and p-Akt/Akt (
P
<
0.05,
P
<
0.01) with the increase in dosage.
Conclusion
2
Wumeiwan-medicated serum can significantly inhibit the malignant biological behaviors of pancreatic cancer SW1990 cells and induce apoptosis. The mechanism may be related to the inhibition of the PI3K/Akt signaling pathway and down-regulation of protein phosphorylation level in the PI3K/Akt signaling pathway.
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