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Immunohistochemical properties in the patients with Buerger's disease--possible role of plasminogen activator inhibitor-1 for preservation of vessel wall architecture.

Authors :
Sato T
Tamai H
Kobayashi M
Yamamoto K
Komori K
Source :
Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology [Cardiovasc Pathol] 2011 Sep-Oct; Vol. 20 (5), pp. 266-71. Date of Electronic Publication: 2010 Aug 12.
Publication Year :
2011

Abstract

Background: The architecture of the arterial wall affected with Buerger's disease has been known to be preserved in all three layers, while the one affected by arteriosclerosis obliterans (ASO) is degenerated and destroyed. We analyzed affected arteries with immunohistochemical methods to clarify the differences between Buerger's disease and ASO.<br />Materials and Methods: Crural arteries obtained from 13 patients with Buerger's disease and 6 patients with ASO at our institute were studied. In addition, we examined seven specimens from six patients who were thought to be normal (without Buerger's disease or ASO) as negative control. Immunohistochemical studies were performed on paraffin-embedded tissues. The primary antibodies were urokinase-type plasminogen activator (uPA) and matrix metalloproteinase-3 (MMP-3). Both are known to play an important role of extracellular proteolysis and to activate each other. Additionally, plasminogen activator inhibitor-1(PAI-1) was also examined.<br />Results: In Buerger's disease, PAI-1 was well expressed along the internal elastic lamina. Urokinase-type plasminogen activator and MMP-3 were slightly positive in intima and media. In ASO, a slight amount of PAI-1 was recognized on vessel walls, and both uPA and MMP-3 were strongly positive in media. In addition, in the control group, PAI-1, uPA, and MMP-3 were well expressed in media.<br />Conclusion: In Buerger's disease, PAI-1 was strongly expressed around the internal elastic lamina, while both uPA and MMP-3 were slightly recognized on vessel walls. These findings could be one of the reasons the general architecture of vessel walls in Buerger's disease is preserved.<br /> (Copyright © 2011 Elsevier Inc. All rights reserved.)

Details

Language :
English
ISSN :
1879-1336
Volume :
20
Issue :
5
Database :
MEDLINE
Journal :
Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology
Publication Type :
Academic Journal
Accession number :
20708412
Full Text :
https://doi.org/10.1016/j.carpath.2010.06.012