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Abu El-Asrar, A.M. et al.

A.M. Abu El-Asrar, S. Struyf, C. Van den Broeck, J. Van Damme, G. Opdenakker, K. Geboes, P. Kestelyn,

Expression of chemokines and gelatinase B in sympathetic ophthalmia.

PURPOSE: To examine the expression of gelatinase B (matrix metalloproteinase-9) and the chemokines monocyte chemotactic protein-1 (CCL2/MCP-1) and stromal cell-derived factor-1 (CXCL12/SDF-1) in sympathetic ophthalmia (SO). METHODS: Five enucleated exciting eyes with a clinical diagnosis and typical histopathological findings of SO were studied by immunohistochemical techniques using a panel of monoclonal antibodies directed against gelatinase B, MCP-1, and SDF-1. In addition, a panel of monoclonal and polyclonal antibodies was used to characterize the composition of the inflammatory infiltrate. RESULTS: In all cases, the extensive uveal inflammatory infiltrate was organized as a diffuse infiltrate and as large granulomas consisting of epithelioid cells and multinucleated giant cells. CD20(+) B lymphocytes predominated in the diffuse infiltrate and CD3(+) T lymphocytes were few. The monocyte/macrophage marker CD68 was expressed in scattered inflammatory mononuclear cells and within granulomas and Dalen-Fuchs nodules. Most of the inflammatory cells were HLA-DR(+). Immunoreactivity for gelatinase B, MCP-1, and SDF-1 was observed in cells within granulomas and in scattered epithelioid cells. Immunoreactivity for MCP-1 was noted in retinal pigment epithelial cells. Endothelial cells of choriocapillaries showed weak immunoreactivity for SDF-1. CONCLUSIONS: Gelatinase B, MCP-1, and SDF-1 might have a pathogenic role in the recruitment of leucocytes into the eye in SO.[1]

References

Expression of chemokines and gelatinase B in sympathetic ophthalmia. Abu El-Asrar, A.M., Struyf, S., Van den Broeck, C., Van Damme, J., Opdenakker, G., Geboes, K., Kestelyn, P. Eye. (Lond) (2007) [Pubmed]

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