1.湖南省中西医结合医院/湖南省中医药研究院 附属医院,长沙 410006
2.湖南中医药大学 研究生院,长沙 410208
简小兰,博士,副主任医师,从事肿瘤病中西医结合防治方法和规律研究,E-mail:jianxiaolan1988@126.com
谭玲娟,硕士,主治医师,从事肿瘤病中西医结合防治方法和规律研究,E-mail:418497975@qq.com;
彭巍,硕士,副主任医师,从事肿瘤病中西医结合防治方法和规律研究,E-mail:1289382701@qq.com
收稿:2025-01-04,
修回:2025-03-17,
录用:2025-03-18,
网络首发:2025-03-25,
纸质出版:2026-03-20
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简小兰,宁康文,杨家翔等.健脾消癌方通过调控FGF2抑制PI3K/Akt信号通路改善肠癌化疗耐药[J].中国实验方剂学杂志,2026,32(06):120-130.
JIAN Xiaolan,NING Kangwen,YANG Jiaxiang,et al.Jianpi Xiaoai Prescription Ameliorates Chemotherapy Resistance in Colon Cancer by Targeting FGF2 to Inhibit PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(06):120-130.
简小兰,宁康文,杨家翔等.健脾消癌方通过调控FGF2抑制PI3K/Akt信号通路改善肠癌化疗耐药[J].中国实验方剂学杂志,2026,32(06):120-130. DOI: 10.13422/j.cnki.syfjx.20251123.
JIAN Xiaolan,NING Kangwen,YANG Jiaxiang,et al.Jianpi Xiaoai Prescription Ameliorates Chemotherapy Resistance in Colon Cancer by Targeting FGF2 to Inhibit PI3K/Akt Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(06):120-130. DOI: 10.13422/j.cnki.syfjx.20251123.
目的
2
探讨健脾消癌方改善结肠癌5-氟尿嘧啶(5-FU)耐药的作用及机制。
方法
2
建立人结肠癌细胞(HCT116)/5-FU耐药细胞系;不同体积分数(10%、15%、20%)的健脾消癌方含药血清及无药血清干预,设置10%小牛血清组(FBS组)、成纤维细胞生长因子受体(FGFR)抑制剂组(AZD4547组)、成纤维细胞生长因子2(FGF2)重组蛋白组(FGF2组)为对照。FGF2组使用敏感HCT116细胞,其他组使用HCT116/5-FU细胞。检测细胞耐药性、细胞培养液中FGF2的表达水平、细胞中FGF2 mRNA的表达、FGF2/FGFR、磷酸肌醇3-激酶/蛋白激酶B(PI3K/Akt)蛋白表达水平。将耐药细胞移植到裸鼠腋窝建立肿瘤模型,分为模型组、健脾消癌方组(15 g·kg
-1
)、5-FU组(0.02 g·kg
-1
)、健脾消癌方+5-FU组(15 g·kg
-1
+0.02 g·kg
-1
)、AZD4547组(0.012 5 g·kg
-1
)和AZD4547+5-FU组(0.012 5 g·kg
-1
+0.02 g·kg
-1
)。观察各组的瘤体增长及FGF/FGFR和PI3K/Akt蛋白的表达情况。
结果
2
健脾消癌方各浓度组HCT116/5-FU细胞的生存比率均降低,其中20%浓度组细胞生存率降低最显著;健脾消癌方各浓度组培养液中FGF2、细胞中FGF2 mRNA表达均降低,其中20%浓度组降低最显著(
P
<
0.01);HCT1
16/5-FU细胞中FGF2、磷酸化(p)-FGFR1蛋白表达显著增高,FGFR1蛋白表达降低(
P
<
0.01),健脾消癌方干预后FGF2、p-FGFR1表达明显下调,FGFR1表达升高(
P
<
0.05);健脾消癌方干预后p-Akt、p-哺乳动物雷帕霉素靶蛋白(mTOR)表达下调,Akt、B淋巴细胞瘤-2基因相关启动子(Bad)表达上调(
P
<
0.05)。动物实验发现,健脾消癌方联合5-FU组明显抑制耐药瘤体生长,健脾消癌方联合5-FU组降低FGF2、p-FGFR1、p-PI3K、p-Akt、p-mTOR蛋白表达,升高Bad蛋白表达。提示健脾消癌方能够抑制结肠癌FGF2/FGFR1信号表达调控PI3K/Akt及下游信号通路。
结论
2
健脾消癌方可以改善肠癌化疗耐药性,其机制可能是通过下调FGF2表达抑制PI3K/Akt信号通路激活。
Objective
2
To explore the effect and mechanism of Jianpi Xiaoai prescription (JPXA) in ameliorating the 5-fluorouracil (5-FU) resistance of colon cancer.
Methods
2
A HCT116/5-FU resistant cell line was established. Different concentrations (10%, 15%, 20%) of JPXA-containing serum and drug-free serum were used for intervention, and 10% fetal bovine serum (10% FBS), fibroblast growth factor receptor (FGFR) inhibitor (AZD4547), and recombinant fibroblast growth factor 2 (FGF2) were set as the control groups. Sensitive HCT116 cells were used in the FGF2 group, while HCT116/5-FU cells were used in other groups. Drug resistance, the level of FGF2 in the cell culture medium, the mRNA level of FGF2 in cells, and the protein levels of FGF2/FGFR and phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) were determined. The drug-resistant cells were transplanted into the axilla of nude mice to establish a tumor model. The modeled mice were allocated into model, JPXA (15 g·kg
-1
), 5-FU (0.02 g·kg
-1
), JPXA+5-FU (15 g·kg
-1
+0.02 g·kg
-1
), AZD4547 (0.012 5 g·kg
-1
), and AZD4547+5-FU (0.012 5 g·kg
-1
+0.02 g·kg
-1
) groups. The tumor growth and the protein levels of FGF/FGFR and PI3K/Akt in each group were observed.
Results
2
The survival rate of HCT116/5-FU cells decreased in all the JPXA groups with different concentrations. The cell survival rate was
decreased most obviously in the 20% JPXA group. The level of FGF2 in the cell culture medium and the mRNA level of FGF2 in cells of each JXPA group decreased, and the decrease was the most significant in the 20% group (
P
<
0.01). HCT116/5-FU cells showed up-regulated protein levels of FGF2 and phosphorylated fibroblast growth factor receptor 1 (p-FGFR1), but down-regulated protein level of FGFR1 (
P
<
0.01). JPXA down-regulated the expression of FGF2 and p-FGFR1 and up-regulated the expression of FGFR1 (
P
<
0.05). In addition, JPXA down-regulated the expression levels of phosphorylated protein kinase B (p-Akt) and phosphorylated mammalian target of rapamycin (p-mTOR), while up-regulating the expression levels of Akt and Bcl-2-asociated death promoter (Bad) (
P
<
0.05). Animal experiments showed that the JPXA combined with 5-FU significantly inhibited the growth of drug-resistant tumors, reduced the protein levels of FGF2, p-FGFR1, phosphorylated phosphatidylinositol-3-kinase (p-PI3K), p-Akt, and p-mTOR, and increased the expression of Bad. It indicated that JPXA can inhibit the FGF2/FGFR1 signaling in colon cancer and regulate PI3K/Akt and downstream signaling pathways.
Conclusion
2
JPXA can ameliorate the chemotherapy resistance of colon cancer through down-regulating FGF2 expression and inhibiting the activation of the PI3K/Akt signaling pathway.
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