Humanized Mice Reproduce Acute and Persistent Human Adenovirus Infection

Humanized Mice Reproduce Acute and Persistent Human Adenovirus Infection
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人源化小鼠再现急性和持续性人类腺病毒感染

DOI:
10.1093/infdis/jiw499
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发表时间:
2017
期刊:
The Journal of Infectious Diseases
影响因子:
--
通讯作者:
Dobner
Dobner
中科院分区:
--
文献类型:
--
作者:
Rodriguez;Hartmann;Pilnitz-Stolze;Gomez-Medina;Munoz-Fontela;Krasemann;Dobner

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严重的腺病毒感染对免疫抑制个体的威胁越来越大,特别是那些接受干细胞移植的个体。以前曾假设严重感染可能是由于持续感染的再激活,但由于缺乏人类腺病毒(hav)感染的允许体内模型,这一假设难以验证。在这里,我们建立了一个人源化小鼠模型,再现急性和持续性hav感染的特征。在这个模型中,急性感染与高死亡率、体重减轻、肝脏病理和几个器官中病毒蛋白的表达相关。相比之下,持续感染是无症状的,导致hadv特异性适应性免疫的建立和早期病毒基因仅在骨髓中表达。这些发现证实了使用人源化小鼠来研究hav急性和持续性感染,并强烈提示骨髓中存在细胞库。
Severe adenovirus infections are an increasing threat for immunosuppressed individuals, in particular those receiving stem cell transplants. It has been previously hypothesized that severe infections might be due to reactivation of a persistent infection, but this hypothesis has been difficult to test due to the lack of a permissive in vivo model of human adenovirus (HAdV) infection. Here we established a humanized mouse model that reproduces both features of acute and persistent HAdV infection. In this model, acute infection correlated with high mortality, weight loss, liver pathology and expression of viral proteins in several organs. In contrast, persistent infection was asymptomatic and led to establishment of HAdV-specific adaptive immunity and expression of early viral genes exclusively in the bone marrow. These findings validate the use of humanized mice to study HAdV acute and persistent infection, and strongly suggest the presence of cellular reservoirs in the bone marrow.
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