Host ranges of Sf-rhabdoviruses harbored by lepidopteran insects and insect cell lines.

Host ranges of Sf-rhabdoviruses harbored by lepidopteran insects and insect cell lines.
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鳞翅目昆虫和昆虫细胞系携带的 Sf-弹状病毒的宿主范围。

DOI:
10.1016/j.virol.2023.05.007
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发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
Jarvis,DonaldL
Jarvis,DonaldL
中科院分区:
医学3区
文献类型:
--
作者:
Menghini,MarkT;Geisler,Christoph;Maghodia,AjayB;Hallam,HoaiJ;Denton,StevenL;Gigley,JasonP;Jarvis,DonaldL

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杆状病毒-昆虫细胞系统中应用最广泛的宿主——狐尾夜蛾(spodoptera frugiperda, Sf)的细胞系被Sf-rhabdovirus (Sf- rvs)污染。在这项研究中,我们在毛虫物种中发现了一种密切相关的病毒(Sf- cat - rv),用于分离原始Sf细胞系。然后我们评估了Sf-RV和Sf-CAT-RV的宿主范围,发现Sf-CAT-RV可以感染Vero细胞,结果表明这两种变体都可以感染小鼠耳成纤维细胞。此外,我们发现这两种变体都可以在严重免疫功能低下(RAG2/IL2RG-/-)小鼠中建立泛嗜性感染。然而,这两种变异在接种后两周被清除,在这些宿主中没有产生任何症状或明显的不良后果。我们得出结论,用于分离Sf21细胞的毛虫最可能是Sf-RV污染物的来源,Sf-RV及其Sf-CAT-RV祖细胞的宿主范围比以前的工作预期的要大,但这两种变体都不会对人类健康构成严重威胁。
Cell lines derived fromSpodoptera frugiperda(Sf), which are the most widely used hosts in the baculovirus-insect cell system, are contaminated with Sf-rhabdoviruses (Sf-RVs). In this study, we identified a closely related virus (Sf-CAT-RV) in the caterpillar species used to isolate the original Sf cell line. We then evaluated the Sf-RV and Sf-CAT-RV host ranges, found Sf-CAT-RV could infect Vero cells, and obtained results suggesting both variants can infect mouse ear fibroblasts. In addition, we found both variants could establish pantropic infections in severely immunocompromised (RAG2/IL2RG-/-) mice. However, both variants were cleared by two weeks post-inoculation and neither produced any symptoms or obvious adverse outcomes in these hosts. We conclude the caterpillars used to isolate Sf21 cells were the most likely source of the Sf-RV contaminant, Sf-RVs and their Sf-CAT-RV progenitor have broader host ranges than expected from previous work, but neither variant poses a serious threat to human health.
由于植入的肾小球抗原而介导膜性肾病中的蛋白尿。
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影响因子: 19.6
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影响因子: 15.9
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