摘要
目的探讨红霉素是否对鼻病毒14(RV14)介导的细胞因子产生和气道黏液高分泌有抑制作用。方法EM预处理肺泡Ⅱ型上皮细胞A5493h后,用RV14刺激细胞,然后采用酶联免疫吸附试验法检测细胞培养上清中细胞因子自介素8和细胞裂解液中黏液蛋白MuC5AC的浓度,并用Western blot检测磷酸化p44/42MAPK信号分子变化情况。结果红霉素明显抑制RV14介导的白介素8和MuC5Ac的产生和分泌,并且对RV14介导的p44/42MAPK的激活也有抑制作用。结论红霉素可有效抑制RV14介导的细胞因子和黏液蛋白的产生和分泌,并且这种抑制作用可能是通过阻断p44/42MAPK信号分子的激活来实现的。
Objective To examine the effect of erythromycin on rhinovirus-14 (RV14)-induced cytokines and airway mucin hypersecretion. Methods A549 cells were pre-incubated with medium containing 10umol/L erythromycin for three hours before RV14 infection. Immunoreactive interleukin-8 (IL-8) and MUC5AC were quantitated using dual antibody ELISA kits according to the manufacturer's protocol. And activated p44/42MAPK was tested by Western blot. Results Erythromycin blocked the hypersecretion of IL-8 and MUCSAC protein, and the activation of p44/42MAPK induced by RV14 in the A549 cells. Conclusions Erythromycin may inhibit RV14-induced IL-8 and MUCSAC hypersecretion by blocking the p44/42MAPK pathway or its upstream regulators.
出处
《国际呼吸杂志》
2009年第16期970-973,共4页
International Journal of Respiration