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IgE Fc Receptor Positive T and B Lymphocytes in Patients with the Hyper IgE Syndrome

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Date 1985 Jan 1
PMID 3882288
Citations 2
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Abstract

The percentages of peripheral blood lymphocytes (PBL), bearing Fc receptors for IgE (Fc epsilon R) and IgG (Fc gamma R) were determined in four patients with the hyper IgE syndrome by a rosette assay employing IgE and IgG coated fixed ox erythrocytes. The patients had 8 +/- 3% Fc epsilon R+ and 13 +/- 8% Fc gamma R+ PBL, compared to 1.2 +/- 1% Fc epsilon R+ and 17 +/- 4% Fc gamma R+ PBL for control donors. T cells were isolated by rosetting with neuraminidase treated sheep erythrocytes (EN). Indirect immunofluorescence with Lyt 3 monoclonal antibody (MoAb) to the sheep erythrocyte receptor, followed by rosetting for Fc epsilon R and Fc gamma R showed that the patients' T cells contained less than 0.1% Fc epsilon R+ and 1.4 +/- 0.2% Fc gamma R+ cells; T cells from the control subjects contained less than 0.1% Fc epsilon R+ and 11 +/- 4% Fc gamma R+ cells. The non-T (EN rosette depleted) cells of the patients included 56 +/- 18% sIgM+/sIgD+, 45 +/- 9% Fc epsilon R+ and 35 +/- 27% Fc gamma R+ cells. Indirect immunofluorescence with MoAb to IgM, IgD, and NK cells (antibody B73.1) followed by rosetting for Fc epsilon R and Fc gamma R, indicated that 92 +/- 2% of the Fc epsilon R+ cells and 9 +/- 7% of the Fc gamma R+ cells were B cells (mu+/delta+), while 3 +/- 4% of the Fc epsilon R+ and 30 +/- 23% of the Fc gamma R+ cells were NK cells (B73.1+). Thus, most of the Fc epsilon R+ non-T cells were B cells, and only a small fraction appeared to be NK cells. On the other hand, Fc gamma R+ B cells were outnumbered by Fc gamma R+ NK cells (B73.1+) by three to one. The data indicate that patients with the hyper IgE syndrome have increased numbers of Fc gamma R+ PBL, most of them being B cells, whereas their T cells contain less than 0.1% Fc epsilon R+ cells.

Citing Articles

In vitro production of IgE-binding factors by human mononuclear cells.

Delespesse G, Sarfati M Immunology. 1987; 60(1):103-10.

PMID: 3493203 PMC: 1453363.


Subset of natural killer cells is induced by immune complexes to display Fc receptors for IgE and IgA and demonstrates isotype regulatory function.

Kimata H, Saxon A J Clin Invest. 1988; 82(1):160-7.

PMID: 2455732 PMC: 303490. DOI: 10.1172/JCI113565.

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