Trehalose 6,6′-dimycolate (Cord Factor) 是海藻糖 6,6'-二霉酸酯,是结核分枝杆菌的细胞壁糖脂,可用于模拟结核分枝杆菌(MTB)诱导的炎症和肉芽肿形成。Trehalose 6,6′-dimycolate 还保护结核杆菌免受巨噬细胞介导的杀伤,抑制有效的抗原呈递,并减少保护性 T 细胞反应的形成。
To stimulate mouse bone marrow-derived macrophages, Cord Factor was suspended at a concentration of 0.2mg/ml in hexane. Of the resulting solution 1 or 10μg/well were layered in 96-well tissue culture plates and the solvent completely evaporated. Control wells were layered with solvent without Cord Factor and also incubated at 37°C. To this layer of Cord Factor, bone marrow-derived macrophages were added in 100μl of medium and incubated at 37°C for 24 hours before activation e.g. TNF-α production was measured in the supernatant. In vivo pulmonary granuloma formation in mice can be induced by 10μg Cord Factor per mouse applied i.v. in a water/oil/water emulsion. A glycolipid that induces macrophages to release inflammatory cytokines independent of TLR2 or TLR4