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.
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.
Effect of Modified Sanrentang on Lipopolysaccharide-induced Proliferation of Rat Glomerular Mesangial Cells Based on PI3K/Akt/NF-κB Pathway
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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