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  • Title: Regulation of murine macrophage phagocytosis of sheep erythrocytes by T-2 toxin.
    Author: Corrier DE, Holt PS, Mollenhauer HH.
    Journal: Am J Vet Res; 1987 Aug; 48(8):1304-7. PubMed ID: 3631723.
    Abstract:
    The effect of a single oral dose of 4 mg of T-2 toxin/kg of body weight on in vivo phagocytosis of sheep RBC by peritoneal macrophages was evaluated in nonsensitized mice and in mice sensitized with sheep RBC. T-2 toxin treatment had no effect on the viability or phagocytic activity of resident peritoneal macrophages in nonsensitized mice. However, a significant (P less than 0.005) increase in phagocytic activity occurred in cells from mice treated with toxin and subsequently sensitized with sheep RBC. In contrast, phagocytosis of sheep RBC was significantly (P less than 0.05) suppressed in cells from mice treated with toxin after sensitization. Toxin treatment induced necrosis of lymphocytes and significant decreases in thymus and spleen weights. Seemingly, T-2 toxin, administered at a dose that caused marked lymphoid depletion, suppressed or enhanced in vivo macrophage phagocytic activity in antigenically sensitized mice, and enhancement or suppression of phagocytosis was a function of the time of toxin treatment in relation to antigenic stimulation.
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