[Modulation of antigen-presenting functions in peritoneal macrophages and changes in production of several cytokines in mice caused by purified staphylococcal toxoid].

ABSTRACT

With adaptive transfer method it has been shown that immunomodulator purified staphylococcal toxoid (PST) changed (stimulate or suppress) antigen-presenting function (APF) of mice peritoneal macrophages (MF) in vivo. This phenomenon was registered during assessment of ability of peritoneal MF to present heterologous (with regard to PST) antigen--sheep erythrocytes (SE). Modulation vector depended from time interval between PST and SE inoculations. Inoculation of PST 1.5 h before SE resulted in stimulation of APF. When SE were inoculated to donor mice 24 h after PST, suppression of APF was developed. Suppression of APF was observed along with suppression of proinflammatory cytokines (IL-1beta, IL-6, TNF-alpha) as well as B-lymphocytes growth factor (IL-4). When cytokine profile was assessed 4 h after PST injection, the suppression of synthesis of these cytokines was not observed. Production of IL-12 increased in 9-12 times in 4 and 24 h after PST injection.