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- 2015
白细胞介素-24通过Jak-Stat通路对破骨细胞影响的实验研究
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Abstract:
摘要 目的:研究白细胞介素-24(interleukin-24,IL-24)在体外通过Jak-Stat信号通路对单核巨噬细胞向破骨细胞分化的影响。方法:使用增强型绿色荧光蛋白(EGFP)确定最佳感染复数(MOI);使用ELISA检测培养基中IL-24的含量;采用Real-time PCR方法检测RAW264.7细胞中Jak-Stat信号通路相关基因Jak1、Jak2、Jak3、Stat1、Stat2、Stat3及其向破骨细胞分化过程中相关基因NFATc1、CTSK、MMP9 mRNA的表达。结果:MOI=600为最佳转染效率;转染组IL-24含量显著高于未转染组(P＜0.01);在RANKL诱导条件下转染IL-24的RAW264.7细胞与未转染组相比Jak2、Stat3 mRNA的表达增加(P＜0.05),在RANKL诱导条件下转染IL-24的RAW264.7细胞加入信号通路抑制剂后与未加入抑制剂组相比,向破骨细胞分化过程中相关基因NFATc1、CTSK、MMP9 mRNA的表达降低(P＜0.05)。结论:IL-24通过Jak-Stat信号通路调控破骨细胞的分化及功能
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