肺细胞巨乳病毒在免疫能力强的宿主中复制:无害的旁观者还是隐藏的威胁?
Sergio Venturini1, Ingrid Reffo2, Manuela Avolio3
1Department of Infectious Diseases, ASFO Santa Maria degli Angeli Hospital of Pordenone, Italy.
The new microbiologica
|October 22, 2025
概括
在检测肺部疾病的无症状成年人20.7%的支气管洗 (BAL) 样本中检测到细胞巨乳病毒 (CMV) DNA. 在随访期间,CMV病毒载量有显著的变化,但没有观察到CMV相关的疾病或治疗.
科学领域:
- 肺部病理学 肺部病理学
- 病毒学 病毒学
- 传染性疾病 传染性疾病
背景情况:
- 细胞巨乳病毒 (CMV) 是一种常见的疹病毒,可以在个体中保持潜伏状态.
- 肺性CMV感染通常与免疫抑制有关,但其在免疫能力强的个体中存在的理解较少.
研究的目的:
- 在没有经典免疫抑制条件的无症状成年人中调查细胞巨乳病毒 (CMV) DNA 肺病毒载荷.
- 评估CMV在该群体肺部的临床意义和行为.
主要方法:
- 在31个月的前性研究中,352名成年人接受了支气管支气管洗 (BAL),以查非急性,非传染性肺部疾病.
- 在BAL样本中分析CMVDNA,并对临床结果进行六个月的随访.
- 使用定量PCR量化病毒载量 (VL) 的量化.
主要成果:
- 在352个BAL样本中的73个 (20.7%) 中检测到CMVDNA.
- 观察到CMV病毒载量的显著变化 (中位数为829副本/毫升,IQR为1457副本/毫升).
- 没有患者接受抗病毒治疗或患有CMV相关疾病;9名患者在随访期间因其他原因死亡. 没有风险因素与较高的VL相关.
结论:
- 无症状的CMV肺部DNA检测在接受其他肺部疾病的BAL治疗的成年人中相对普遍.
- 在这个人群中,BAL液中CMVDNA的临床相关性需要进一步调查.
- 在不同患者群体的肺性CMV行为需要进一步的研究.
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