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Updated: May 21, 2026

Isolation and Adoptive Transfer of High Salt Treated Antigen-presenting Dendritic Cells
Published on: March 5, 2019
Danping Qin1, Hiroyuki Morita, Kiyoko Inui
1Division of Nephrology, Department of Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan.
Background:
The renoprotection of the mineralocorticoid receptor antagonist (MRA) is considered to be mainly via its antifibrotic activity, and the possibility that it may also have antiinflammatory effects has not been studied. We tested the hypothesis that MRA might influence the inflammatory changes that accompany experimental glomerular injury.
Methods:
Administration of vehicle (control) or a selective MRA, eplerenone (50 mg/kg x 2 times/day) was started 7 days (-7d) before induction of anti-Thy-1.1 glomerulonephritis. Kidney samples were evaluated serially over a 12-day period for the presence of cell proliferation, macrophage infiltration, mesangial cell phenotypic activation and expression of the chemokine monocyte chemoattractant protein-1 (MCP-1).
Results:
MRA did not prevent the mesangiolysis associated with anti-Thy-1 antibody. However, MRA significantly inhibited MCP-1 expression, glomerular macrophage infiltration and mesangial phenotypic activation (alpha-smooth muscle actin expression).
Conclusion:
MRA alters glomerular inflammation and mesangial cell activation in experimental glomerular injury. MRA may be a novel way to treat acute glomerular diseases.
Insights
Mineralocorticoid receptor antagonists (MRAs) show potential in treating glomerular diseases by reducing inflammation and mesangial cell activation, offering a novel therapeutic approach.
Area of Science:
- Nephrology
- Immunology
- Pharmacology
Background:
- Mineralocorticoid receptor antagonists (MRAs) are known for renoprotective antifibrotic effects.
- The anti-inflammatory role of MRAs in glomerular injury has not been extensively studied.
Purpose of the Study:
- To investigate the potential anti-inflammatory effects of MRAs in experimental glomerular injury.
- To test if MRAs influence inflammatory changes in the glomerulus.
Main Methods:
- Eplerenone, a selective MRA, was administered to rats before inducing anti-Thy-1.1 glomerulonephritis.
- Kidney tissues were analyzed for cell proliferation, macrophage infiltration, mesangial cell activation, and MCP-1 expression.
Main Results:
- MRAs did not prevent mesangiolysis but significantly reduced MCP-1 expression.
- MRA treatment inhibited glomerular macrophage infiltration and mesangial cell activation (alpha-smooth muscle actin).
Conclusions:
- MRAs modulate glomerular inflammation and mesangial cell activation in experimental kidney injury.
- MRAs represent a potential novel therapeutic strategy for acute glomerular diseases.
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