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实验分为白介素-1(IL-1)预处理组和非预处理组,脂质体介导反义IL-1 受体相关激酶-1(IRAK-1)寡核苷酸(ODN) 转染HepG2 细胞,用w estern 杂交分析IRAK-1 表达水平,以夹心酶联免疫吸附测定法检测NF-κB含量. 结果表明,IL-1 非预处理组反义IRAK-1 ODN不能抑制IRAK-1 表达和NF-κB活化,而预处理组IRAK-1 表达和NF-κB活化受到明显抑制. 反义IRAK-1 ODN 对NF-κB活化的抑制作用具有时间(5~24 h)和剂量(1~8 μg)依赖性. 说明IL-1 预刺激在反义IRAK-1 ODN抑制IL-1 诱导的NF-κB活化中起决定性作用.
The experiment was divided into two groups: pretreatment with interleukin-1 (IL-1) and non-pretreatment with liposome-mediated transfection of antisense IL-1 receptor associated kinase-1 (ODN) HepG2 cells. The expression of IRAK-1 was analyzed by western hybridization and the content of NF-κB was detected by sandwich enzyme-linked immunosorbent assay (ELISA). The results showed that antisense IRAK-1 ODN could not inhibit IRAK-1 expression and NF-κB activation in IL-1 non-pretreatment group, while IRAK-1 expression and NF-κB activation in pretreatment group were significantly inhibited. The inhibitory effect of antisense IRAK-1 ODN on NF-κB activation was dependent on time (5-24 h) and dose (1-8 μg). Indicating that IL-1 pre-stimulation plays a decisive role in antisense IRAK-1 ODN inhibition of IL-1-induced NF-κB activation.