B-Cells in ocular adnexal lymphoproliferative lesions express B-cell attracting chemokine 1 (CXCL13).

Falkenhagen, Katherine M; Braziel, Rita M; Fraunfelder, Frederick W; Smith, Justine R · Am J Ophthalmol · 2005

basic_science · Level V

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Abstract

The homeostatic chemokine, B cell attracting chemokine 1 (CXCL13), has been implicated in the pathogenesis of lymphocyte-mediated diseases. We investigated the cellular expression of this chemokine in the spectrum of ocular adnexal lymphoproliferative lesions. Laboratory investigation. CXCL13 expression in paraffin-embedded adnexal biopsy specimens was determined by indirect immunohistochemistry with antigen retrieval. In 15 of 16 biopsy specimens, including reactive lymphoid hyperplasia (n = 7), atypical lymphoid hyperplasia (n = 3), and B cell lymphoma (n = 6), CXCL13 was detected. CD20-positive B-cells, as well as dendritic cells and endothelial cells, expressed the chemokine. B-cells in ocular adnexal lymphoproliferative lesions demonstrate expression of CXCL13, a chemokine that may participate in tumor pathogenesis and is a potential target for novel therapies.

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