Korean J Pathol.
2000 May;34(5):331-340.
Expression of Adhesion Molecules in IgA Nephropathy, Diffuse Crescentic Glomerulonephritis, and Minimal Change Disease
- Affiliations
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- 1Department of Pathology, Seoul National University College of Medicine, Seoul 110-799, Korea.
Abstract
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Accumulation of leukocytes within the glomerulus is a key event in the pathogenesis of
glomerulonephritis. This process is mediated by pairs of adhesion molecules. We have examined
the expression pattern of selectins (E and P), intercellular adhesion molecule-1 (ICAM-1), and
vascular cell adhesion molecule-1 (VCAM-1) in 30 renal biopsies with IgA nephropathy, diffuse
crescentic glomerulonephritis, and minimal change disease. Normal controls were obtained from
four nephrectomy specimens with renal cell carcinoma. ICAM-1 expression was significantly
increased in the glomerular endothelial and mesangial cells in cases with IgA nephropathy
compared with normal controls. VCAM-1 was expressed in glomerular mesangial cells in all cases
with IgA nephropathy and diffuse crescentic glomerulonephritis, but faintly expressed in 3 cases
with minimal change disease and not expressed in normal controls. P-selectin was faintly
expressed in the glomeruli in cases with IgA nephropathy and diffuse crescentic
glomerulonephritis. E-selectin was only expressed in the vascular endothelium in one case with
IgA nephropathy and in the other with diffuse crescentic glomerulonephritis. ICAM-1 and
VCAM-1 were strongly expressed in the crescents. However, selectin was not expressed in the
crescent. These results suggest that adhesion molecules, particularly ICAM-1 and VCAM-1, play
an important role in the pathogenesis of glomerular damage and crescent formation in primary
glomerular diseases.