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NE Kay and SD Douglas
Monocyte recognition of immunoprotein-coated erythrocytes in vitro was
studied in 21 patients with immune hemolytic anemia. Simultaneous
assessment of immunoglobulin and complement components on the patients'
erythrocytes was performed. The patients were heterogeneous in relation to
associated diseases, therapy, and duration of disease state; 15 were
studied within 1 mo of diagnosis and 4 additional patients were studied in
sequential fashion. Monocyte-erythrocyte interaction was assessed by both a
morphologic and a radioactive assay; 12 of 17 patients had elevated ratios
in the morphologic assay and 15 of 17 patients had elevated ratios in the
radioactive assay. The majority of patients exhibited enhanced interaction
between their monocytes and autologous immunoprotein-coated erythrocytes,
as compared to normal moncytes exposed to the same immunoprotein-coated
erythrocytes. These findings suggest that there is an enhanced capacity of
monocytes from certain patients with immune hemolysis to interact with
autologous immunoprotein-coated erythrocytes in vitro.
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| Copyright © 1977 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||