Expression of membrane receptor for tumour necrosis factor on human blood lymphocytes
1993
Using a monoclonal antibody against the human p75 tumour necrosis factor receptor (TNFR-I) combined with a high-sensitivity immunofluorescence flow cytometric procedure, a proportion of peripheral blood lymphocytes can be shown to express TNFR-I constitutively. Approximately 50% of peripheral blood lymphocytes consisting mostly of CD4 cells and including most CD45RO-positive cells, express TNFR-I. Receptor expression is increased by a variety of activation signals. Only a minority (up to 30%) of tonsil B cells express measurable levels of TNFR-I. The tonsil B cells which express TNFR-I include both cells with a germinal centre cell phenotype and cells with the phenotype of the follicular mantle zone
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