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.
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.
Effect of Wuwei Xiaoduyin on NF-κB Signaling Pathway in Lipopolysaccharide-induced Rat Mesangial Cells
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.
关键词
Keywords
references
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