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急性冠脉综合征患者外周血单个核细胞miR-146a表达及其与炎症因子的相关性研究 被引量:3

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摘要 目的研究急性冠脉综合征(ACS)患者外周血单个核细胞内MicroRNA-146a(miR-146a)基因的表达,并探讨炎症因子及其表达水平的相关性。方法分离26例急性心肌梗死(AMI)、25例不稳定型心绞痛(UA)、22例稳定型心绞痛(SA)、18例胸痛综合征(CPS)患者外周血单个核细胞(PBMC),采用Real-time PCR法及Northern blot法检测各组患者PBMC中miR-146a的表达水平,同时,将分离的PBMC在体外经植物血凝素(PHA)刺激培养后,采用酶联免疫吸附法(ELISA)检测培养基上清中促炎因子肿瘤坏死因子(TNF-α)、γ干扰素(IFN-γ)及抗炎因子白介素(IL-10)的表达水平,并对miR-146a与炎症因子的表达进行相关性研究。结果 AMI组和UA组患者miR-146a基因表达明显高于SA组与CPS组(P<0.05),而SA组和CPS组间差异无统计学意义(P>0.05)。ELISA结果显示,AMI组及UA组培养基上清中TNF-α、IFN-γ明显高于SA组及CPS组(P<0.01),而IL-10表达明显并无显著变化(P>0.05)。相关性研究发现,miR-146a的表达与TNF-α、IFN-γ浓度呈显著正相关(P<0.05)。结论 ACS患者miR-146a表达明显增加,并与促炎因子表达呈正相关,提示miR-146a功能亢进可能参与了ACS炎症反应过程,可能是动脉粥样硬化不稳定斑块的发病机制之一。
出处 《中西医结合心脑血管病杂志》 2012年第8期923-925,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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同被引文献30

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