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1.安徽中医药大学,合肥 230012
2.安徽省中医药科学院 中西医结合研究所,中药复方安徽省重点实验室,合肥 230012
丁芮,在读博士,从事中药复方抗肿瘤作用研究,E-mail:584831330@qq.com
黄金玲,博士生导师,教授,从事中药抗肿瘤作用及其分子机制研究,E-mail:jinling6181@126.com
收稿日期:2022-03-04,
网络出版日期:2022-06-30,
纸质出版日期:2023-01-05
移动端阅览
丁芮,王景辉,王靓等.基于MGC-803细胞微环境探讨加味小陷胸汤抑制侵袭迁移作用机制[J].中国实验方剂学杂志,2023,29(01):18-25.
DING Rui,WANG Jinghui,WANG Liang,et al.Mechanism of Modified Xiao Xianxiongtang in Inhibiting Invasion and Metastasis by Targeting Microenvironment of MGC-803 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):18-25.
丁芮,王景辉,王靓等.基于MGC-803细胞微环境探讨加味小陷胸汤抑制侵袭迁移作用机制[J].中国实验方剂学杂志,2023,29(01):18-25. DOI: 10.13422/j.cnki.syfjx.20221625.
DING Rui,WANG Jinghui,WANG Liang,et al.Mechanism of Modified Xiao Xianxiongtang in Inhibiting Invasion and Metastasis by Targeting Microenvironment of MGC-803 Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):18-25. DOI: 10.13422/j.cnki.syfjx.20221625.
目的
2
观察加味小陷胸汤水提取物对MGC-803细胞微环境的影响,探究该方通过调控MGC-803细胞微环境抑制侵袭迁移作用与其调控Wnt5a/Ca
2+
/活化T细胞核因子(NFAT)信号通路的可能机制。
方法
2
转化生长因子-
β
1
(TGF-
β
1
)造模后,将MGC-803细胞分为空白组、模型组、加味小陷胸汤组(10、20、40 mg·L
-1
);Wnt5a过表达质粒转染后,分为过表达载体(pEX)-空白(NC)组、pEX-Wnt5a组、pEX-NC+加味小陷胸汤组(40 mg·L
-1
)和pEX-Wnt5a+加味小陷胸汤组(40 mg·L
-1
)。观察MGC-803细胞侵袭能力、迁移能力、微环境关键因子、上皮间质转化(EMT)基因、Wnt5a、钙调神经磷酸酶(CaN)、NFAT1、磷酸化(p)-NFAT1和NFAT1核蛋白表达及细胞Ca
2+
浓度变化。
结果
2
与空白组比较,模型组微环境显著上调(
P
<
0.01);与模型组比较,加味小陷胸汤(10、20、40 mg·L
-1
)可明显抑制微环境(
P
<
0.05,
P
<
0.01)。进一步实验表明,与空白组比较,模型组过表达Wnt5a后侵袭细胞增多,划痕率升高,微环境因子和EMT基因呈活化态势,Wnt5a/Ca
2+
/NFAT通路激活(
P
<
0.01);与模型组比较,加味小陷胸汤可抑制细胞远处侵袭和减少愈合,抑制微环境、EMT发展,和Wnt5a/Ca
2+
/NFAT信号转导,降低NFAT1核表达和NFAT1介导的转录活性,从而降低细胞Ca
2+
浓度,且可逆转Wnt5a的作用(
P
<
0.05,
P
<
0.01)。
结论
2
加味小陷胸汤可通过改善MGC-803细胞微环境调控Wnt5a/Ca
2+
/NFAT通路,抑制胃癌侵袭转移和EMT进程。
Objective
2
To observe the effects of the water extract of modified Xiao Xianxiongtang on microenvironment of gastric cancer MGC-803 cells, and to explore its possible mechanism in inhibiting the invasion and metastasis and epithelial-mesenchymal transformation (EMT) of MGC-803 cells and regulating Wnt5a/Ca
2+
/nuclear factor of activated T-cells (NFAT) signaling pathway by regulating microenvironment.
Method
2
The model of MGC-803 cells was established by transforming growth factor-
β
1
(TGF-
β
1
). The MGC-803 cells were divided into blank group, model group, and modified Xiao Xianxiongtang (10, 20, 40 mg·L
-1
) groups. After transfection of Wnt5a overexpression plasmid, they were divided into pEX-normal control (NC) group, pEX-Wnt5a group, pEX-NC+modified Xiao Xianxiongtang (40 mg·L
-1
) group and pEX-Wnt5a+modified Xiao Xianxiongtang (40 mg·L
-1
) group. The invasion ability, migration ability, key factors of microenvironment, epithelial mesenchymal transformation (EMT) gene, Wnt5a, calcineurin (CaN), NFAT1, phosphorylated (p)-NFAT1 and NFAT1 nuclear protein expression and cell Ca
2+
concentration of MGC-803 cells were observed.
Result
2
Compared with the blank group, the microenvironment in the model group was significantly up-regulated(
P
<
0.01), and compared with the model group, modified Xiao Xianxiongtang (10,20, 40 mg·L
-1
) could significantly inhibit the microenvironment(
P
<
0.05,
P
<
0.01). Further experiments showed that compared with the blank group, the number of invasive cells increased, the scratch rate increased, the microenvironmental factors and EMT gene were activated and the Wnt5a/Ca
2+
/NFAT pathway was activated in the model group after overexpression of Wnt5a. Compared with the model group, modified Xiao Xianxiongtang could inhibit cell distant invasion and reduce healing, inhibit microenvironment, EMT development, and Wnt5a/Ca
2+
/NFAT signal transduction, reduce NFAT1 nuclear expression and NFAT1-mediated transcriptional activity, thus reduce cell Ca
2+
concentration, and reverse the effect of Wnt5a (
P
<
0.05,
P
<
0.01).
Conclusion
2
Modified Xiao Xianxiongtang could regulate Wnt5a/Ca
2+
/NFAT pathway and inhibit the invasion and metastasis of gastric cancer and EMT progression by improving tumor microenvironment.
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