Abstract
We have developed a microcytotoxicity assay allowing sera to be screened for anti-epithelial cell cytotoxic antibodies. Cells from the epithelial cell line A549 were cultured overnight in Terasaki trays prior to the addition of the sera to be screened. Using this assay, 63 pediatric recipients of 78 renal transplants have been studied retrospectively. Seventeen transplants carried out in 13 patients were found to be associated with the production of antibodies reactive only against epithelial cells (AEC). Eleven of these transplants failed as compared with 19 failures out of 52 transplants not associated with AEC production (Fisher's p = 0.04). We conclude that transplantation in the face of pre-existing AEC should be approached with caution.
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