IL-18、IL-10和IL-6与急性冠状动脉综合征的关系研究

目的：研究白细胞介素（IL）-18、IL-10和IL-6血清浓度与急性冠状动脉综合征之间的关系。方法： 采用酶联免疫吸附法（ELISA）和放射免疫法检测62例冠心病患者（急性心肌梗死17例、不稳定性心绞痛30例、稳定性心绞痛15例）和20例正常健康者血清IL-18、IL-10和IL-6水平，并比较上述指标水平之间的相关关系。 结果： 血清IL-18、IL-6水平在急性心肌梗死（AMI）组和不稳定性心绞痛（UAP）组显著高于稳定性心绞痛（SAP）组和对照组(P＜0.05, P＜0.01)；AMI组和UAP组血清IL-10水平明显低于SAP组和对照组（P＜0.01）。血清IL-18和IL-6水平与血清IL-10水平呈显著负相关（r＝－0.827, P＜0.01; r＝－0.231, P＜0.05)； 血清IL-6水平与IL-18水平相关性不明显（r＝0.119, P＞0.05）。 结论： 急性冠状动脉综合征患者血清IL-18、IL-6水平明显升高而IL-10水平显著降低；IL-18、IL-6与IL-10的平衡失调可能是促进斑块不稳定的重要因素。

Relationship between serum concentrations of IL-18, IL-10, IL-6 and acute coronary syndrome

AIM: To examine the relation between serum concentrations of interleukin-18, interleukin-10, interleukin-6 and acute coronary syndrome (ACS). METHODS: Serum concentrations of IL-18, IL-10, IL-6 were measured in 17 patients with acute myocardial infarction (AMI), 30 patients with unstable angina pectoris (UAP), 15 patients with stable angina pectoris (SAP) and 20 controls by enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay (RIA).The relation between IL-18, IL-6 and IL-10 was compared. RESULTS: Serum concentrations of IL-18, IL-6 were significantly increased in the AMI and UAP groups in comparison with the SAP and control groups. Conversely, serum concentrations of IL-10 were significantly decreased in the AMI and UAP groups in comparison with the SAP and control groups. The correlation of concentrations of IL-18 and IL-6 had no significance; but the levels of IL-18 and IL-6 were negatively correlated with IL-10. CONCLUSION: Serum IL-18, IL-6 concentrations increase while serum IL-10 concentration decreases in patients with acute coronary syndromes. The inflammatory imbalance between IL-18, IL-6 and IL-10 may play an important role in the instability of atherosclerotic plaque.