Demonstration of the Fc-receptor of blood cells by soluble peroxidase-anti-peroxidase (PAP) complexes
- 1 May 1978
- journal article
- research article
- Published by Springer Nature in Annals of Hematology
- Vol. 36 (5) , 263-273
- https://doi.org/10.1007/bf01880677
Abstract
The Fc-receptor of normal human leukocytes, of CLL-cells, and of hematopoietic cell lines was demonstrated with soluble peroxidase-anti-peroxidase (PAP) complexes. In about 9% of normal lymphocytes an almost continuous, strong labeling of the cell membrane was established. Some of these lymphocytes were characterized by a peculiar uniform fine structure. The percentage of PAP-labeled monocytes was in the range of 25%, neutrophils nearly 100%, eosinophils 0%, CLL-cells 10%. Labeled portions of the membrane were interiorized from monocytes. The lymphoid cell-line Daudi established from a Burkitt's lymphoma appeared almost negative, the cell line K 562 established from a myeloid leukemia in 75% of the cells strongly positive. PAP-labeling was not influenced by preincubation with trypsine or with neuraminidase; it was negative when PAP-F(ab)2 was used. Results of PAP-labeling were not always in agreement with EA-rosettes or with agg-Ig. Der Fc-Rezeptor von normalen menschlichen Leukozyten, CLL-Zellen und hämatopoetischen Zell-Linien wurde mittels löslicher Peroxidase-anti-Peroxidase (PAP)-Komplexe untersucht. Etwa 9% normaler Lymphozyten zeigten eine starke, nahezu ununterbrochene Membranmarkierung. Einige dieser stark markierten Lymphozyten waren durch eine gemeinsame, auffällige Feinstruktur gekennzeichnet. PAP-positive Monozyten lagen in der Größenordnung von 25%, Neutrophile fast 100%, Eosinophile 0%, CLL-Zellen 10%. Markierte Membrananteile wurden von Monozyten ins Zellinnere aufgenommen. Die lymphoide Zell-Linie Daudi war kaum mit PAP zu markieren, die myeloide Zell-Linie K 562 war zu 75% stark positiv. Die PAP-Markierung war durch Vorinkubation mit Trypsin oder Neuraminidase nicht zu beeinflussen; Kontrollen mit PAP-F(ab)2 blieben vollständig negativ. Die Ergebnisse der PAP-Markierung stimmten mit EA-Rosetten und agg-Ig nicht immer überein.Keywords
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