培养人角朊细胞中白介素15的基因表达

The Expression of IL 15 mRNA in Cultured Human Keratinocytes

目的 为了探讨白介素 1 5 (IL 1 5 )在表皮角朊细胞中的表达及调节。方法 应用RT PCR及Northern杂交方法分析了IL 1 5在培养的人角朊细胞及鳞状细胞癌细胞系 (HSC 5 )中的表达 ,并观察了地塞米松对角朊细胞表达IL 1 5的影响。结果 正常角朊细胞及鳞状细胞癌细胞系细胞均有IL 1 5mRNA的表达 ,1 0 -6mol/L地塞米松处理培养的角朊细胞后 ,IL 1 5mRNA表达水平明显降低。结论 表皮细胞来源的IL 1

Objective To study the expression and regulation of interleukin 15 (IL 15) in epidermal keratinocytes. Methods The expression of IL 15 mRNA in cultured normal human keratinocytes (NHKs) and human squamous cell carcinoma cell line (HSC 5) was analysed, and the effect of dexamethasone on IL 15 mRNA expression was studied by using RT PCR and Northern blotting technique. Results The results showed that both NHKs and HSC 5 expressed IL 15 constitutively. The level of IL 15 mRNA was significantly decreased after the cells were cultured with 10 -6 M dexamethasone. Conclusion It is suggested that keratinocyte derived IL 15 might be involved in the development of certain inflammatory skin diseases.