PMID: 6978346Apr 1, 1982Paper

Studies of human natural killer cells. III. Neutropenia associated with unusual characteristics of antibody-dependent and natural killer cell-mediated cytotoxicity

Journal of Clinical Immunology
H F ProssM G Baines

Abstract

A 52-year-old Caucasian man with chronic neutropenia and recurrent infections was found to have an increased proportion of peripheral T lymphocytes having Fc receptors for IgG (T gamma ). Although levels of antibody-dependent cell-mediated cytotoxicity (ADCC) and "natural" killing (NK) by unfractionated lymphocytes were similar to those of a control donor, the frequency of KN cells was markedly increased. Removal of E rosette-forming cells eliminated both NK and ADCC by the patient's peripheral blood, in marked contrast to the enhanced cytotoxicity seen with control lymphocytes. Both normal and patient ADCC and NK functions were removed by depletion of Fc receptor-bearing cells. These depletion experiments proved that all of the patient's killer cells were E rosette-forming T gamma cells, in contrast to the heterogeneous pattern of null gamma and T gamma killer cells seen in the blood of normal donors. The homogeneity of the T gamma proliferation suggested that ADCC and NK were mediated by the same cell type, albeit acting by different mechanisms. The addition of the patient's serum and lymphocytes to chromium-labelled normal granulocytes caused a low but significant level of cytotoxicity, indicating that the patient's neutrope...Continue Reading

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Citations

Jan 1, 1992·Microbiology and Immunology·M KitaJ Imanishi
Aug 7, 2002·Xenobiotica; the Fate of Foreign Compounds in Biological Systems·J-H YanK K Midha
Jul 1, 1989·Human Pathology·B A AgnarssonM E Kadin
Dec 1, 1986·British Journal of Haematology·J P van der VeenA E von dem Borne
Jun 1, 1992·Kisaengch'unghak chapchi. The Korean journal of parasitology·D K HyunK Im
Mar 1, 1989·Arthritis and Rheumatism·S LassouedA Fournie
Mar 30, 2010·Journal of Molecular Cell Biology·Makoto TakeuchiMasayoshi Kibata
Oct 1, 1982·Journal of Clinical Immunology·J C Roder, H F Pross

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