Lijia ZHOU, Li ZHONG, Qian XUE, et al. RANKL inhibits activation of hepatic stellate cells during hepatic fibrosis in mice[J]. Journal of Army Medical University, 2023, 45(2): 139-145.
DOI:
Lijia ZHOU, Li ZHONG, Qian XUE, et al. RANKL inhibits activation of hepatic stellate cells during hepatic fibrosis in mice[J]. Journal of Army Medical University, 2023, 45(2): 139-145. DOI: 10.16016/j.2097-0927.202205095.
RANKL inhibits activation of hepatic stellate cells during hepatic fibrosis in mice
To explore the biological role of receptor activator of nuclear factor kappa-B ligand (RANKL) in the activation of hepatic stellate cells (HSCs) and the process of hepatic fibrosis.
Methods
2
Twenty-six male C57BL/6 mice (6~8 weeks old) were randomly assigned to control group and liver fibrosis group (
n
=13).The mice in the latter group were injected intraperitoneally with 5 μL/g 10% carbon tetracholoride (CCL
4
twice/week) to induce liver fibrosis
while those of the former group were given same volume of sterile oil solution.In 6 weeks later
the expression of RANKL
α-SMA and Collagen-Ⅰ at mRNA and protein levels in liver tissue
primary hepatocytes (HCs) and HSCs was detected by quantitative real-time PCR (RT-qPCR)
immunohistochemical assay and Western blotting
respectively.After primary HSCs were treated with different concentrations of exogenous recombinant RANKL
the mRNA and protein levels of above molecules were measured with RT-qPCR and immunofluorescence assay.
Results
2
The mRNA and protein levels of RANKL were significantly increased in the liver tissue from the model group than the control group (
P
<
0.05)
and the protein was in a diffuse distribution.In the control mice
the mRNA and protein levels of RANKL was obviously higher in HCs than HSCs (
P
<
0.001)
while CCL
4
treatment induced liver fibrosis resulted in the expression level of RANKL was further increased in HCs
while decreased in HSCs.After different concentrations of recombinant RANKL were added to stimulate the activation of primary HSCs
the expression of RANKL
α-SMA and Collagen-Ⅰat mRNA and protein levels in HSCs activated by recombinant RANKL was decreased in a dose-dependent manner (
P
<
0.05
P
<
0.01 or
P
<
0.001).
Conclusion
2
In the process of liver fibrosis in mice
HCs express a large amount of RANKL
and RANKL can inhibit the activation of HSCs.
关键词
Keywords
references
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Effect of S100A6 on activation of hepatic stellate cells in mice
High-salt diet promotes the progression of fibrosis in metabolic dysfunction-associated steatohepatitis via activating the PI3K/Akt/mTOR signaling pathway