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Type: Journal article
Title: The FAS antigen (CD95) on human lymphoid cells - epitope analysis with ten antibodies
Author: Zola, H.
Fusco, M.
Ridings, J.
Flego, L.
Weedon, H.
Nicholson, I.
Organ, N.
Roberton, D.
Macardle, P.
Citation: Tissue Antigens, 1996; 48(5):519-530
Issue Date: 1996
ISSN: 0001-2815
Abstract: The expression of CD95 antigen was examined on adult and cord blood lymphocytes using a highly sensitive immunofluorescence/flow cytometric procedure. CD95 was expressed by the majority of circulating blood T cells in adults, and by a smaller proportion of CD4+ and CD8+ T cells in cord blood. The majority of circulating B cells did not react with seven CD95 antibodies, but three antibodies did stain B cells. In tonsil sections, CD95 was expressed throughout the tissue but germinal centres showed generally stronger staining than the surrounding follicular mantle and interfollicular areas. This was confirmed by flow cytometry, which showed expression preferentially on B cells with a germinal centre phenotype. Because different antibodies stained different proportions of B cells, CD95 epitopes were examined by inhibition, additive binding and protease susceptibility studies using a panel of ten CD95 antibodies. B cells apparently reacting selectively with CD95 antibodies were sorted and CD95 mRNA was reverse transcribed to cDNA and analyzed, in order to confirm the presence of CD95 in cells which reacted selectively and to explore the possible existence of CD95 isoforms. The major cDNA band was identical in the two populations. Inhibition of N-glycosylation suggested that the epitopes detected differentially could not be accounted for by differential N-glycosylation.
Keywords: B-Lymphocytes; Lymphocytes; CD4-Positive T-Lymphocytes; CD8-Positive T-Lymphocytes; Fetal Blood; Humans; Antibodies, Monoclonal; Flow Cytometry; Sensitivity and Specificity; Epitope Mapping; Adult; fas Receptor
RMID: 0030005363
DOI: 10.1111/j.1399-0039.1996.tb02665.x
Appears in Collections:Paediatrics publications

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