Analysis of allelic expression patterns of IL-2, IL-3, IL-4, and IL-13 in human CD4+ T cell clones.
Pouw Kraan, C.T.M. van der
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The occurrence of monoallelic expression of cytokine genes in single cells has been convincingly demonstrated, but there have been few reports of this phenomenon in T cell clones. Here we describe studies on the expression of alleles of the human genes encoding IL-2, IL-3, IL-4, and IL-13 in human CD4(+) T cell clones. In contrast to the results reported in mouse T cell clones and single human T cells, we found no evidence for the monoallelic expression of the IL-2, IL-3, and IL-13 genes. The gene for IL-4 showed an imbalance in expression from each allele, indicating differential expression of IL-4 alleles within or between IL-4-expressing cells.