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Nephrol Dial Transplant. 1995 Nov;10(11):2077-82.

Expression of inflammatory cytokines and adhesion molecules in haemodialysis-associated amyloidosis.

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  • 1Division of Immunological Diseases, Tokyo Medical and Dental University, Japan.

Abstract

BACKGROUND:

The occurrence of various arthropathies including carpal-tunnel syndrome (CTS) in dialysis-associated amyloidosis, a condition caused by the deposition of beta 2 microglobulin (beta 2MG), has been emphasized for several years. We attempted to analyse the pathogenesis of CTS in haemodialysis-associated amyloidosis (HA).

METHODS:

The expression of cell adhesion molecules and inflammatory cytokines in tenosynovial tissues was determined by using both reverse-transcriptase polymerase chain reaction (RT-PCR) and immunostaining.

RESULTS:

There was a marked expression of ICAM-1, VCAM-1, E-selectin mRNAs together with increased mRNA expression of inflammatory cytokines (IL-1 beta, TNF alpha, IL-6 and MCP-1) in proliferating synovial tissues. ICAM-1 was expressed not only on vascular endothelial cells, but also on synovial cells. In contrast, both VCAM-1 and E-selectin were exclusively expressed on endothelial cells. Mononuclear cells bearing CD13, CD14, CD33 and HLA-DR with macrophage-like morphology were accumulated in the perivascular area and expressed VLA-4, LFA-1 and Mac-1. Moreover, synovial lining cells, vascular endothelial cells and infiltrated mononuclear cells expressed chemokines such as MCP-1 and MIP-1 alpha.

CONCLUSIONS:

These data suggest that upregulated expression of inflammatory cytokines and adhesion molecules promotes activation and infiltration of macrophages causing CTS in haemodialysis-associated amyloidosis patients.

PMID:
8643171
[PubMed - indexed for MEDLINE]
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