Kato K, Yamamoto K
Immunology. 1982 Apr;45(4):655-61.
Previous intravenous (i.v.) injection of heat-killed Bacillus Calmette-Guérin (BCG) in mice produced a suppression of delayed-type hypersensitivity (DTH) induced with oil-treated BCG cell walls. This phenomenon was analysed by the macrophage migration inhibition (MI) test in which non-adherent spleen cells from mice which had been injected with heat-killed BCG (K-Non-ad. cells) were mixed with peritoneal exudate cells from BCG cell wall-immunized mice (effector-PEC). The test showed that the K-Non-ad. cells suppressed the MI activity in the effector-PEC, which indicated that the suppressor cells were induced in the spleen by the heat-killed BCG injections. Moreover, the suppressive effect of the K-Non-ad. cells disappeared after treatment with anti-brain associated theta serum (BA theta) and guinea-pig complement, and operated across the H-2 barrier. The suppressor cells inhibited the production or release of the migration inhibition factor from the BCG cell wall-sensitized cells in the presence of the specific antigen, purified protein derivatives (PPD). It was concluded that the injections of heat-killed BCG produced antigen non-specific suppressor T cells in DTH suppression.
先前给小鼠静脉注射热灭活卡介苗(BCG)可抑制经油处理的卡介苗细胞壁诱导的迟发型超敏反应(DTH)。通过巨噬细胞迁移抑制(MI)试验对该现象进行了分析,即将注射过热灭活卡介苗的小鼠的非黏附脾细胞(K - 非黏附细胞)与经卡介苗细胞壁免疫的小鼠的腹腔渗出细胞(效应 - PEC)混合。试验表明,K - 非黏附细胞抑制了效应 - PEC中的MI活性,这表明热灭活卡介苗注射可在脾脏中诱导出抑制细胞。此外,用抗脑相关θ血清(BAθ)和豚鼠补体处理后,K - 非黏附细胞的抑制作用消失,且这种抑制作用可跨越H - 2屏障。在存在特异性抗原纯化蛋白衍生物(PPD)的情况下,抑制细胞抑制了卡介苗细胞壁致敏细胞产生或释放迁移抑制因子。得出的结论是,注射热灭活卡介苗在DTH抑制中产生了抗原非特异性抑制性T细胞。