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  • Title: Monocyte and macrophage Fc-receptor function in systemic vasculitis with renal involvement.
    Author: Roccatello D, Coppo R, Rollino C, Martina G, Piccoli G, Sena LM.
    Journal: Int J Tissue React; 1984; 6(6):541-5. PubMed ID: 6530356.
    Abstract:
    The Fc-receptor function of macrophages and monocytes was studied in 10 healthy subjects and 10 patients (5 in phase of clinical activity) affected by systemic vasculitis with histological evidence of renal involvement. Macrophage function was detected by measuring the clearance in vivo of IgG-sensitized 51Cr-labelled autologous red blood cells (RBC). In vitro immune phagocytosis of monocytes was analysed as a kinetic phenomenon by incubating IgG-coated RBC with nearly pure suspensions of peripheral monocytes. All 5 patients studied in phase of clinical activity showed a defective Fc-receptor function in both the assays, as compared with normal subjects. Since a good correlation was found between the in vitro and the in vivo methods, the use of this non-invasive in vitro procedure is proposed as a substitute for the radioactive in vivo techniques in monitoring the course of the above disease.
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