Clin Immunol:移植前免疫评估可以鉴别肾移植受者在移植后有发生CMV感染的风险

2020-10-04 MedSci原创 MedSci原创

评估CMV特异性T细胞免疫可能是预测实体器官移植后CMV感染的有用工具。本项前瞻性研究调查了CD4和CD8 T细胞对CMV pp65和IE-1抗原的反应,研究结果已在线发表于J Hosp Infect

评估CMV特异性T细胞免疫可能是预测实体器官移植后CMV感染的有用工具。本项前瞻性研究调查了CD4和CD8 T细胞对CMV pp65和IE-1抗原的反应,研究结果已在线发表于J Hosp Infect。

研究纳入了28名CMV血清阳性的肾移植受者,这些受者接受了淋巴细胞消耗性抗体(Thymoglobulin®)作为诱导治疗,并对CMV感染进行了普遍预防。通过细胞内流式细胞仪分析移植前样本和移植后1、6、12和24个月的IFN-γ产生的反应。

 

结果显示,只有移植前CD4 T细胞对pp65的反应在移植后CMV复制的患者中显著降低(p = .004)。ROC曲线分析显示,移植前pp65特异性CD4+T细胞频率低于0.10%,可以预测CMV感染,其敏感性为75%,特异性为83.33%(AUC:0.847;95%CI:0.693-1.001;p = .0054),似乎是宿主免疫系统有效控制CMV病毒复制的必备条件。

 

总之,在血清阳性患者移植前对CMV特异性CD4 T细胞免疫进行功能评估,可以鉴别出经过胸腺球蛋白®治疗的肾移植受者在移植后有发生CMV感染的风险。

 

原始出处:

 

Maria O López-OlivaVirginia Martínez, et al., Pre-transplant assessment of pp65-specific CD4 T cell responses identifies CMV-seropositive patients treated with rATG at risk of late onset infection. Clin Immunol. 2020 Feb;211:108329. doi: 10.1016/j.clim.2019.108329. 

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    2021-07-03 wolongzxh
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    2020-10-04 14675366m05暂无昵称

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    2020-10-04 14675366m05暂无昵称

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