目的 研究抗茵蛋白银屑病素(psoriasin)在T细胞分泌IL-8中的作用。方法抽取正常人和银屑病患者外周血,提取T淋巴细胞,用ELISA的方法检测正常人和银屑病患者外周血中IL-8的表达变化。结果未受psoriasin刺激的正常人血T细胞不能产生IL-8,而在psoriasin刺激2,4,8和12h后,可见IL-8的表达升高,且有时间和剂量依赖性,8h时,产生IL-8的量最多,可达492pg/mL;未受psoriasin刺激的银屑病患者血T细胞可产生少量IL.8,银屑病患者外周血在psoriasin刺激2,4,8和12h后,也见IL-8的表达升高,4h时的产生量已经相'-3于正常细胞8h的产生量,且8h时产生量最多,可达1007.5pg/mL。结论Psoriasin刺激银屑病患者外周血T细胞产生IL-8的速度比正常人更快,剂量更多。
Objective To investigate the role of psoriasin on IL-8 secretion from normal and psoriatic peripheral blood T cells. Methods ELISA was used to define the level of IL-8 produced by T lymphocytes from normal and psoriatic peripheral blood. Results IL-8 was not detected from normal blood without stimulated by psoriasin. However, after stimulated by psoriasin for 2h,4h,8h and 12h, IL-8 was overproduced and reached maximum at 8h to 492 pg/mL,and this production was in a dose and time-dependent manner, IL-8 from psoriatic blood could be detected a little without stimulated by psoriasin. After stimulating by psoriasin for 2h,4h, 8h and 12h,IL-8 was also over-expressed in psoriatic blood, while reaching simmilar value after 4h, and also reaching a maximum after 8h to 1 007.5 pg/mL. Conclusion It is faster and more in psoriatic patient than that in normal people for psoriasin to stimulate peripheral blood to produce IL-8.