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早期梅毒外周血CD4+T细胞白介素-4、干扰素-γ表达及调控区域甲基化状态研究 被引量:2

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摘要 目的 研究早期梅毒患者外周血T淋巴细胞白介素-4(IL-4)、干扰素-γ(IFN-γ)mRNA的表达及其基因调节序列甲基化状态.方法 免疫磁珠法(MACS)分离10例Ⅰ期梅毒、10例Ⅱ期梅毒患者和10例正常人外周血CD4+T细胞,实时荧光定量PCR (RT-PCR)检测IFN-γ 、IL-4基因mRNA的表达,甲基化特异性PCR(MSP)检测IFN-γy、IL-4基因调节序列的甲基化状态并进行比较.结果 与Ⅱ期梅毒患者及正常对照组比较,IFN-γ基因mRNA表达在Ⅰ期梅毒患者中明显升高(P<0.01),与正常对照组及Ⅰ期梅毒患者比较,IL-4基因mRNA表达在Ⅱ期梅毒患者中明显增高(P<0.01).与Ⅱ期梅毒组及对照组比较,Ⅰ期梅毒组IFN-γ基因的位点甲基化水平、甲基化指数差异均有统计学意义(t=6.32,t=8.99,P<0.01;t=26.63,t=25.53,P<0.01).与Ⅰ期梅毒组及对照组比较,在Ⅱ期梅毒组中IL-4基因的位点甲基化水平差异有统计学意义(t=29.83,t=33.78,P<0.01),但甲基化指数无明显变化(P>0.05).结论 早期梅毒患者中细胞因子IFN-γ、IL-4的异常表达与其相关调控区域的甲基化状态异常有关.
出处 《中国医师杂志》 CAS 2016年第8期1214-1216,共3页 Journal of Chinese Physician
基金 汕尾市科技局基金资助项目(2013C016)
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