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Surface markers of complement receptor lymphocytes.
G D Ross, … , E M Rabellino, T Hoffman
G D Ross, … , E M Rabellino, T Hoffman
Published November 1, 1978
Citation Information: J Clin Invest. 1978;62(5):1086-1092. https://doi.org/10.1172/JCI109214.
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Research Article

Surface markers of complement receptor lymphocytes.

Abstract

Normal blood lymphocytes bearing complement receptors (CRL) were divided into two populations, one expressing both CR1 (C4b-C3b receptor) and CR2 (C3d receptor) and a second expressing only CR1. Nearly all of the population that expressed both CR1 and CR2 also bore membrane surface immunoglobulins (Ig) and Ia antigens. The majority of cells that had only CR1 lacked detectable surface Ig. These Ig- CR1+ CR2- cells could be distinguished from the majority of monocytes and immature granulocytes, in that the latter ingested latex particles and expressed CR2 as well as CR1. The Ig- CR1+ cells were further subdivided into an Ia-bearing subpopulation and another that lacked Ia. Among the Ig- Ia- CR1+ cells, one third formed spontaneous rosettes with sheep erythrocytes while all of the remaining CRL were erythrocyte-rosette negative. Essentially all CRL in normal blood had IgG Fc receptors, but a qualitative heterogeneity in the Fc receptors of Ia+ CRL vs. Ia- CRL was observed in their binding of different immune complex systems.

Authors

G D Ross, R J Winchester, E M Rabellino, T Hoffman

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