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1.河北中医学院,石家庄 050091
2.河北省中医院,石家庄 050011
张禹,在读博士,从事中医药治疗肾病的研究,E-mail:zy1009620089@163.com
郭登洲,教授,博士生导师,从事中医药治疗肾病的研究,E-mail:guodengzhou@sohu.com
收稿日期:2021-11-12,
网络出版日期:2022-03-11,
纸质出版日期:2022-05-05
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张禹,王广伟,王新爱等.五味消毒饮对脂多糖诱导大鼠肾系膜细胞NF-κB信号通路的影响[J].中国实验方剂学杂志,2022,28(09):16-22.
ZHANG Yu,WANG Guang-wei,WANG Xin-ai,et al.Effect of Wuwei Xiaoduyin on NF-κB Signaling Pathway in Lipopolysaccharide-induced Rat Mesangial Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(09):16-22.
张禹,王广伟,王新爱等.五味消毒饮对脂多糖诱导大鼠肾系膜细胞NF-κB信号通路的影响[J].中国实验方剂学杂志,2022,28(09):16-22. DOI: 10.13422/j.cnki.syfjx.20220938.
ZHANG Yu,WANG Guang-wei,WANG Xin-ai,et al.Effect of Wuwei Xiaoduyin on NF-κB Signaling Pathway in Lipopolysaccharide-induced Rat Mesangial Cells[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(09):16-22. DOI: 10.13422/j.cnki.syfjx.20220938.
目的
2
观察五味消毒饮对脂多糖(LPS)诱导的大鼠肾系膜细胞(HBZY-1)核转录因子-
κ
B(NF-
κ
B)信号通路的影响,并探讨其作用机制。
方法
2
将大鼠肾系膜细胞随机分为正常组、模型组、贝那普利组(50 μmol·L
-1
)、五味消毒饮高、低剂量组(2.75、0.69 g·kg
-1
)。正常组、模型组、贝那普利组使用10%正常大鼠血清,五味消毒饮高、低剂量组使用10%含药血清。除正常组外,其余4组给予LPS(100 μg·L
-1
)以体外干预。倒置显微镜观察细胞形态的变化;免疫荧光法(IF)检测NF-
κ
B p65的表达;噻唑蓝(MTT)比色法检测细胞活力;酶联免疫吸附测定法(ELISA)检测细胞中白细胞介素-1
β
(IL-1
β
)、细胞间黏附分子-1(ICAM-1)、层粘连蛋白(LN)和纤连蛋白(FN)的含量;实时荧光定量聚合酶链式反应(Real-time PCR)检测细胞中IL-1
β
、FN、NF-
κ
B p65 mRNA的表达;蛋白免疫印迹法(Western blot)检测细胞中磷酸化NF-
κ
B抑制蛋白激酶
β
(p-IKK
β
)、磷酸化NF-
κ
B抑制蛋白
α
(p-I
κ
B
α
)、NF-
κ
B p65蛋白的表达。
结果
2
与正常组比较,模型组细胞增殖显著增多(
P
<
0.01),细胞上清中IL-1
β
、ICAM-1、LN、FN的含量显著增多(
P
<
0.01),IL-1
β
、FN、NF-
κ
B p65 mRNA表达显著升高(
P
<
0.01),p-IKK
β
、p-I
κ
B
α
、NF-
κ
B p65蛋白表达显著升高(
P
<
0.01)。与模型组比较,各给药组细胞增殖明显降低(
P
<
0.05,
P
<
0.01),细胞上清中IL-1
β
、ICAM-1、LN、FN的含量明显减少(
P
<
0.05,
P
<
0.01),IL-1
β
、FN、NF-
κ
B p65 mRNA的表达明显降低(
P
<
0.05,
P
<
0.01),p-IKK
β
、p-I
κ
B
α
、NF-
κ
B p65蛋白的表达显著降低(
P
<
0.05,
P
<
0.01)。
结论
2
五味消毒饮可减轻由LPS诱导的肾系膜细胞损伤,其作用机制可能与抑制NF-
κ
B信号通路的启动有关。
Objective
2
To study the effect and mechanism of Wuwei Xiaoduyin in treating rat renal mesangial cells (HBZY-1) induced by lipopolysaccharide (LPS) through the nuclear factor-
κ
B (NF-
κ
B) signaling pathway.
Method
2
Rat HBZY-1 cells were randomly assigned into the normal group, model group, benazepril (50 μmol·L
-1
) group, and high- and low-dose (2.75 and 0.69 g·kg
-1
) Wuwei Xiaoduyin groups. The normal group, model group, and benazepril group were treated with 10% normal rat serum, and the Wuwei Xiaoduyin groups with 10% medicated serum. Except the normal group, the other four groups were treated with LPS (100 ng·mL
-1
) for modeling
in vitro
. The changes of cell morphology were observed under optical microscope. The expression of NF-
κ
B p65 was detected by immunofluorescence (IF) method. Methyl thiazolyl tetrazolium (MTT) colorimetry was employed to detect cytotoxicity and cell proliferation. The levels of interleukin-1
β
(IL-1
β
), intercellular adhesion molecule-1 (ICAM-1), laminin (LN), and fibronectin (FN) in cell supernatant were determined by enzyme-linked immunosorbent assay (ELISA). The mRNA levels of IL-1
β
, FN, and NF-
κ
B p65 were measured by real-time fluorescence quantitative PCR. The protein levels of phosphorylated inhibitor of NF-
κ
B kinase
β
(p-IKK
β
), phosphorylated NF-
κ
B inhibitor (p-I
κ
B
α
), and NF-
κ
B p65 were determined by Western blot.
Result
2
Compared with the normal group, the modeling increased cell proliferation (
P
<
0.01), elevated the levels of IL-1
β
, ICAM-1, LN, and FN in cell supernatant (
P
<
0.01), and up-regulated the mRNA levels of IL-1
β
, FN, and NF-
κ
B p65 (
P
<
0.01) and the protein levels of p-IKK
β
, p-I
κ
B
α
, and NF-
κ
B p65 (
P
<
0.01). Such changes were recovered by benazepril and Wuwei Xiaoduyin (
P
<
0.05,
P
<
0.01).
Conclusion
2
Wuwei Xiaoduyin can mitigate the inflammatory injury of renal mesangial cells induced by LPS by inhibiting the NF-
κ
B signaling pathway.
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