Clinica Chimica Acta:干扰素免疫功能检测可预测终末期肾病的感染事件?

2020-04-12 MedSci原创 MedSci原创

感染仍然是终末期肾脏病(ESKD)患者的第二大最常见死亡原因。

感染仍然是终末期肾脏病(ESKD)患者的第二大最常见死亡原因。 我们旨在使用适用于常规用途的功能测定QuantiFERON-Monitor(Qiagen)评估ESKD队列中的非特异性细胞介导的免疫,并评估其是否可以预测感染事件。

在这项前瞻性研究中,我们对80名受试者(包括54名ESKD患者)进行了QuantiFERON-Monitor测试。 QuantiFERON-Monitor基于TLR-7激动剂刺激NK细胞和TCR激动剂刺激T细胞后血浆干扰素-γ(IFN-γ)的测量。 随后随访患者6至12个月。

QuantiFERON-Monitor显示,与健康供体(n = 19)(p <0.0001)和慢性肾脏病3–4期患者(n = 7)相比,ESKD患者(n = 54)的刺激性IFN-γ产生较低(血液透析( n = 30):p <0.01;腹膜透析(n = 13):p = 0.03,保守治疗时ESKD(n = 11):p <0.001)。在有肾脏替代疗法或保守治疗的ESKD患者之间,未观察到刺激的IFN-γ产生的显着差异。晚期感染患者中刺激的IFN-γ产生显著降低(13.9 [5.5-48.3] IU / mL与85.8 [35.5-236] IU / mL,p = 0.007)。使用ROC分析,我们确定了63.55 IU / mL的临界值(敏感性= 80.95%,特异性= 79.17%,AUC = 0.78,p = 0.008),以区分感染风险较高的患者。通过QuantiFERON Monitor测得的刺激的IFN-γ水平低于63.55 IU / mL(n = 21)的患者,其随后感染发生的危险比为10.71([3.68–31.13],p <0.0001)。

研究结果表明,刺激先天性免疫和适应性免疫后,监测IFN-γ的产生可识别感染风险高的ESKD患者。这样可以进行治疗干预,恢复细胞免疫力,从而最大限度地减少肾移植后的感染和排斥反应。

原始出处:

S. Boyer-Suavet,M. Cremoni,Functional immune assay using interferon-gamma could predict infectious events in end-stage kidney disease

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    2020-05-04 windight
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