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SETD4对脂多糖诱导的AML12细胞IL-6转录的调控作用

Chinese Journal of Clinical Anatomy(2018)

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Abstract
目的 探讨SETD4 (SET-domain containing protein 4)对脂多糖(LPS)诱导的AML12(小鼠肝脏细胞系)细胞IL-6的转录调控作用.方法 构建SETD4表达质粒和IL-6启动子荧光素酶报告基因质粒,共转染小鼠肝脏细胞系AML12,使用双荧光素酶报告基因技术检测LPS刺激后IL-6启动子荧光素酶活性;单独转染SETD4表达质粒上调AML12细胞SETD4表达,检测LPS刺激后IL-6 mRNA水平变化. 结果 双酶切鉴定及核酸测序证实重组质粒pcDNA3.0/HA-SETD4、pGL3.0/IL-6 promoter的构建成功.pcDNA3.0/HA-SETD4与pGL3.0/IL-6 promoter共转染AML12细胞,LPS刺激后SETD4对IL-6启动子荧光素酶活性没有影响;上调SETD4表达后,可以促进LPS诱导的IL-6 mRNA转录.结论 成功构建SETD4真核表达质粒和IL-6启动子荧光素酶报告基因质粒;SETD4对LPS诱导的AML12细胞IL-6的转录发挥正调控作用.
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