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类风湿关节炎患者外周血单个核细胞组蛋白H3赖氨酸4三甲基化水平检测及意义 被引量:2

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摘要 目的研究类风湿关节炎(RA)患者外周血单个核细胞(PBMCs)组蛋白H3赖氨酸4(H3K4)三甲基化(Me3)水平。方法梯度密度离心法分离8例RA患者和8例健康者的PBMCs,采用染色质免疫共沉淀联合芯片技术(ChIP-chip)在全基因组范围内对RA患者及健康者的PBMCs组蛋白H3K4me3进行高通量的筛选。染色质免疫共沉淀-实时定量聚合酶联反应(ChIP-qPCR)验证芯片结果。定量反转录聚合酶联反应(qRT-PCR)检测H3K4me3显著差异基因的mRNA表达水平。结果RA患者与对照比较,鉴定出364个基因存在H3K4me3显著差异,其中有66个基因显示有H3K4me3程度增高,298个基因有H3K4me3程度降低;ChIP-qPCR验证结果与CpG岛芯片结果一致。结论RA患者与健康者之间的PBMCs存在组蛋白H3K4me3显著改变。ChIP-chip技术有利于进一步揭示RA分子机制,发现新的治疗靶点。
出处 《广东医学》 CAS CSCD 北大核心 2009年第8期1084-1087,共4页 Guangdong Medical Journal
基金 广东省深圳市科技计划项目(编号:200801013)
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同被引文献28

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