Franks A K, Kujawa K I, Yaffe L J
Casualty Care Research Department, Naval Medical Research Institute, Bethesda, Maryland 20889-5055.
Infect Immun. 1991 Aug;59(8):2609-14. doi: 10.1128/iai.59.8.2609-2614.1991.
Tumor necrosis factor alpha (TNF) is thought to play a major role in the pathogenesis of septic shock. Anti-TNF antibody was preadministered in low-dose endotoxin lethality models in which BALB/c mice were challenged with small amounts of lipopolysaccharide following their sensitization with either carrageenan (CAR) or D-galactosamine (D-GalN). Although the antibody virtually eliminated circulating TNF in both the CAR and the D-GalN models, only the D-GalN model mice were afforded survival, adding to a growing body of evidence that substances other than TNF play a key role in endotoxin-induced lethality. Further examination of sera from these mice showed a much greater elevation of interleukin-6 levels in the CAR-sensitized group than in the D-GalN-sensitized group.
肿瘤坏死因子α(TNF)被认为在脓毒症休克的发病机制中起主要作用。在低剂量内毒素致死模型中预先给予抗TNF抗体,在该模型中,BALB/c小鼠在用角叉菜胶(CAR)或D-半乳糖胺(D-GalN)致敏后,再用少量脂多糖进行攻击。尽管该抗体在CAR和D-GalN模型中几乎消除了循环中的TNF,但只有D-GalN模型小鼠存活,这增加了越来越多的证据表明,除TNF外的其他物质在内毒素诱导的致死性中起关键作用。对这些小鼠血清的进一步检测显示,CAR致敏组的白细胞介素-6水平升高幅度比D-GalN致敏组大得多。