Wolf J E, Massof S E
Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania 19107.
Infect Immun. 1990 May;58(5):1296-300. doi: 10.1128/iai.58.5.1296-1300.1990.
Alterations in macrophage oxidative burst activity following in vivo administration of recombinant murine gamma interferon (IFN-gamma), recombinant murine tumor necrosis factor alpha, and the antifungal antibiotic amphotericin B were investigated. Mice were given intraperitoneal injections of these agents alone and in combination, and the oxidative responses of their resident peritoneal macrophages to challenge with Histoplasma capsulatum or zymosan particles were measured 1 to 5 days later. Various degrees of enhanced oxidative burst activity were achieved following treatment with each agent. However, a synergistic response was observed only when mice were treated with the combination of recombinant murine IFN-gamma and amphotericin B. These results not only confirm the dual role of amphotericin as an antifungal agent and as an immunomodulator but also suggest that IFN-gamma may serve as a useful adjunct in the treatment of intracellular fungal infections.
研究了体内给予重组小鼠γ干扰素(IFN-γ)、重组小鼠肿瘤坏死因子α和抗真菌抗生素两性霉素B后巨噬细胞氧化爆发活性的变化。单独或联合腹腔注射这些药物给小鼠,1至5天后测量其驻留腹膜巨噬细胞对荚膜组织胞浆菌或酵母聚糖颗粒攻击的氧化反应。每种药物治疗后均实现了不同程度的氧化爆发活性增强。然而,仅当用重组小鼠IFN-γ和两性霉素B联合治疗小鼠时观察到协同反应。这些结果不仅证实了两性霉素作为抗真菌剂和免疫调节剂的双重作用,还表明IFN-γ可能作为治疗细胞内真菌感染的有用辅助药物。