Pathological Features of Echovirus-11-Associated Brain Damage in Mice Based on RNA-Seq Analysis.
Pathological Features of Echovirus-11-Associated Brain Damage in Mice Based on RNA-Seq Analysis.
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DOI：
10.3390/v13122477
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发表时间：
2021-12-10
期刊：
影响因子：
--
通讯作者：
Wu G
中科院分区：
文献类型：
--
作者：
Zhang G;Li J;Sun Q;Zhang K;Xu W;Zhang Y;Wu G
Echovirus 11 (E11) is a neurotropic virus that occasionally causes fatal neurological diseases in infected children. However, the molecular mechanism underlying the disease and pathological spectrum of E11 infection remains unclear. Therefore, we modelled E11 infection in 2-day-old type I interferon receptor knockout (IFNAR−/−) mice, which are susceptible to enteroviruses, with E11, and identified symptoms consistent with the clinical signs observed in human cases. All organs of infected suckling mice were found to show viral replication and pathological changes; the muscle tissue showed the highest viral replication, whereas the brain and muscle tissues showed the most obvious pathological changes. Brain tissues showed oedema and a large number of dead nerve cells; RNA-Seq analysis of the brain and hindlimb muscle tissues revealed differentially expressed genes to be abundantly enriched in immune response-related pathways, with changes in the Guanylate-binding protein (GBP) and MHC class genes, causing aseptic meningitis-related symptoms. Furthermore, human glioma U251 cell was identified as sensitive target cells for E11 infection. Overall, these results provide new insights into the pathogenesis and progress of aseptic meningitis caused by E11.
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