Abstract
The E-cadherins are a family of cell-cell adhesion molecules. These molecules exhibit Ca2+ dependent cell adhesion and are expressed on epithelial cells. E-cadherin levels in serum are known to be significantly elevated in patients with epithelial carcinomas. We determined serum E-cadherin levels in 30 patients with non-Hodgkin's lymphoma (NHL) using an enzyme immunoassay and then investigated whether E-cadherin is expressed on lymphoma cells in lymph nodes of three cases selected to analyze from 15 cases of serum E-cadherin levels over mean + 2SD with monoclonal antibody immunohistochemistry. Results indicated that E-cadherin antigen is expressed on the lymphoma cells in these three patients with NHL, and that soluble E-cadherin might be released into blood from lymphoma cells. Expression of E-cadherin may contribute to the morphological appearance of some malignant lymphoma, although no conclusion can be drawn based on such small number of patients analyzed.
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