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1.河北中医学院,石家庄 050200
2.石家庄市中医院,石家庄 050051
3.河北女子职业技术学院,石家庄 050093
4.河北中医学院 第一附属医院,石家庄 050011
王广伟,在读博士,从事中医药治疗肾脏病和中药药理机制研究,E-mail:115222425@qq.com
郭登洲,教授,博士生导师,从事中西医治疗肾脏病研究,E-mail:guodengzhou@sohu.com
收稿日期:2021-08-04,
网络出版日期:2021-12-31,
纸质出版日期:2022-03-05
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王广伟,张禹,张佳宁等.基于PI3K/Akt/NF-κB信号通路探讨加味三仁汤对脂多糖诱导的大鼠肾小球系膜细胞增殖的影响[J].中国实验方剂学杂志,2022,28(05):32-37.
WANG Guang-wei,ZHANG Yu,ZHANG Jia-ning,et al.Effect of Modified Sanrentang on Lipopolysaccharide-induced Proliferation of Rat Glomerular Mesangial Cells Based on PI3K/Akt/NF-κB Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(05):32-37.
王广伟,张禹,张佳宁等.基于PI3K/Akt/NF-κB信号通路探讨加味三仁汤对脂多糖诱导的大鼠肾小球系膜细胞增殖的影响[J].中国实验方剂学杂志,2022,28(05):32-37. DOI: 10.13422/j.cnki.syfjx.20220537.
WANG Guang-wei,ZHANG Yu,ZHANG Jia-ning,et al.Effect of Modified Sanrentang on Lipopolysaccharide-induced Proliferation of Rat Glomerular Mesangial Cells Based on PI3K/Akt/NF-κB Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(05):32-37. DOI: 10.13422/j.cnki.syfjx.20220537.
目的
2
观察加味三仁汤对脂多糖诱导的大鼠肾小球系膜细胞增殖、细胞外基质及磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(Akt)/核转录因子-
κ
B(NF-
κ
B)信号通路的干预作用,探讨其改善免疫球蛋白A肾病(IgAN)大鼠炎症病变的相关机制。
方法
2
采用血清药理学方法,将18只大鼠分为3组,正常组,加味三仁汤高、低剂量(20.70,10.35 g·kg
-1
·d
-1
)组,每组6只,加味三仁汤高、低剂量组给予加味三仁汤相应溶液灌胃,正常组灌胃等体积蒸馏水。分别灌胃5 d后,采血制取含药血清。采用大鼠肾小球系膜细胞(HBZY-1),分为正常组,模型组,贝那普利组(50 μmol·L
-1
),加味三仁汤高、低剂量组。釆用噻唑蓝(MTT)比色法检测各组细胞增殖情况,酶联免疫吸附测定法(ELISA)检测各组细胞培养上清液中Ⅳ型胶原(ColⅣ)的含量,蛋白免疫印迹法(Western blot)和实时荧光定量聚合酶链式反应(Real-time PCR)分别检测PI3K/Akt/NF-
κ
B通路相关蛋白表达量和mRNA表达水平。
结果
2
与正常组比较,模型组大鼠肾小球系膜细胞增殖显著(
P
<
0.01),ColⅣ分泌显著增多(
P
<
0.01),磷酸化(p)-Akt,p-p65蛋白表达显著增加(
P
<
0.01);与模型组比较,加味三仁汤高剂量组显著抑制细胞增殖(
P
<
0.01)和ColⅣ分泌(
P
<
0.01),降低Akt磷酸化水平(
P
<
0.01),降低NF-
κ
B p65阳性表达(
P
<
0.01)。
结论
2
加味三仁汤能够抑制脂多糖诱导的HBZY-1细胞增殖,降低ColⅣ蛋白含量,可能与其抑制PI3K/Akt/NF-
κ
B信号通路激活密切相关。
Objective
2
To observe the intervention of modified Sanrentang on the lipopolysaccharide-induced proliferation of rat glomerular mesangial cells, the phosphatidylinositol-3 kinase(PI3K)/protein kinase B(PKB/Akt)/nuclear factor kappa B(NF-
κ
B) signaling pathway, and to investigate its mechanism in improving kidney inflammation in rats with immunoglobulin A nephropathy(IgAN).
Method
2
The 18 rats were divided into 3 groups by serum pharmacology method: normal group, high-dose and low-dose (20.70,10.35 g·kg
-1
·d
-1
) groups with 6 rats in each group. Modified Sanrentang high- and low-dose groups were intragastric with the corresponding solution of modified Sanrentang, and normal group was intragastric with equal volume of distilled water. After 5 days of intragastric administration, blood samples were collected to prepare drug-containing serum. Rat mesangial (HBZY-1) were divided into five groups of normal group, LPS 10 mg·L
-1
in the model group, benazepril(50 μmol·L
-1
), modified Sanrentang high- and low-dose group. Preclude the use of methyl thiazolyl tetrazolium(MTT) method detect the proliferation activity of HBZY-1 cells, enzyme-linked immunosorbent assay(ELISA) was used to determine the content of each group type Ⅳ collagen(ColⅣ),Western blot and Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) were used to detect protein and mRNA expression levels of PI3K/Akt/NF-
κ
B signaling pathway.
Result
2
As compared with the normal group, MTT assay showed that exposure to LPS significantly enhanced the proliferative activity, the ColⅣ was increased significantly of HBZY-1 cells(
P
<
0.01), p-Akt, p-p65 was increased significantly (
P
<
0.01). Compared with the model group, the proliferation and ColⅣ of rat chronic glomerulonephritis cells induced by LPS by inhibiting PI3K/Akt/NF-
κ
B signaling pathway(
P
<
0.01), and the phosphorylation of Akt was significantly inhibited(
P
<
0.01), the expression levels of NF-
κ
B p65 was reduced in modified Sanrentang high-dose group(
P
<
0.01).
Conclusion
2
Modified Sanrentang could inhibit cell proliferation and the content of ColⅣ in rat mesangial cells induced by LPS, and its mechanism might be related to suppression of PI3K/Akt signaling pathway.
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