Expression of IL-23/Th-17 axis and other association genes in peripheral blood mononuclear cells from asthma patients
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摘要: 目的: 探讨哮喘患者外周血单个核细胞(PBMCs)中白细胞介素23(IL-23)、白细胞介素17(IL-17)、肿瘤坏死因子α(TNFα)、转化生长因子β(TGFβ)、Foxp3(Foxp3) 基因mRNA的表达及其临床意义。方法: 以实时定量逆转录聚合酶链式反应(RT-PCR)分别检测68例急性发作期哮喘患者及60例健康体检者PBMCs中IL-23、IL-17、TNFα、TGFβ、Foxp3基因mRNA的表达情况,并进一步分析其内在关联性。结果: 与对照组相比,哮喘急性发作期患者PBMCs中的IL-23和TNFα mRNA表达水平显著增高(P<0.05),TGFβ mRNA表达水平显著下降(P<0.05);而IL-17、Foxp3 mRNA表达水平差异无统计学意义(P>0.05);TNFα表达水平分别与IL-17、IL-23呈正相关性,而Foxp3与TGFβ呈正相关性;IL-23 mRNA水平与哮喘患者病程、疾病严重程度和疾病控制程度存在一定关联性。结论: IL-23/Th-17轴在哮喘炎症反应过程中可能发挥潜在的重要作用,IL-23与哮喘的严重程度密切相关,有望作为其治疗监测、预后转归的潜在生物评价指标。Abstract: Objective: To investigate the levels of the mRNA expression of IL-23, IL-17, TNFα, TGFβ and Foxp3 gene in peripheral blood monocytes (PBMCs) of asthma patients and their clinical significance. Method: The mRNA expression of IL-23, IL-17, TNFα, TGFβ and Foxp3 in PBMCs of 68 asthma patients and 60 healthy controls were detected using fluorescence quantitative real-time reverse transcription-polymerase chain reaction, and the correlation between them were analyzed. Result: Compared to the normal group, the mRNA expression of IL-23 and TNFα in PBMCs of asthma patients was significantly increased (P<0.05), and TGFβ was significantly decreased (P<0.05), while the expression of IL17 and Foxp3 had no significance between the patients group and the normal group (P>0.05). The mRNA expression of TNFα was positively correlated to IL-17 and IL-23, so as TGFβ to Foxp3. In addition, the expression level of IL-23 mRNA was correlated to the duration of disease, disease severity and disease control in asthma patients. Conclusion: IL-23/Th-17 axis might play an important role in asthma inflammation, and IL-23 may be closely related to the severity of asthma, which is expected as one biomark of its evaluation and treatment.
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