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Niemann-Pick C1 Heterogeneity of Bat Cells Controls Filovirus Tropism.
Cell Reports ( IF 7.5 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.celrep.2019.12.042
Yoshihiro Takadate 1 , Tatsunari Kondoh 1 , Manabu Igarashi 2 , Junki Maruyama 1 , Rashid Manzoor 1 , Hirohito Ogawa 3 , Masahiro Kajihara 1 , Wakako Furuyama 4 , Masahiro Sato 1 , Hiroko Miyamoto 1 , Reiko Yoshida 1 , Terence E Hill 5 , Alexander N Freiberg 5 , Heinz Feldmann 4 , Andrea Marzi 4 , Ayato Takada 6
Affiliation  

Fruit bats are suspected to be natural hosts of filoviruses, including Ebola virus (EBOV) and Marburg virus (MARV). Interestingly, however, previous studies suggest that these viruses have different tropisms depending on the bat species. Here, we show a molecular basis underlying the host-range restriction of filoviruses. We find that bat-derived cell lines FBKT1 and ZFBK13-76E show preferential susceptibility to EBOV and MARV, respectively, whereas the other bat cell lines tested are similarly infected with both viruses. In FBKT1 and ZFBK13-76E, unique amino acid (aa) sequences are found in the Niemann-Pick C1 (NPC1) protein, one of the cellular receptors interacting with the filovirus glycoprotein (GP). These aa residues, as well as a few aa differences between EBOV and MARV GPs, are crucial for the differential susceptibility to filoviruses. Taken together, our findings indicate that the heterogeneity of bat NPC1 orthologs is an important factor controlling filovirus species-specific host tropism.

中文翻译:


蝙蝠细胞的尼曼-皮克 C1 异质性控制丝状病毒趋向性。



果蝠被怀疑是丝状病毒的天然宿主,包括埃博拉病毒(EBOV)和马尔堡病毒(MARV)。然而有趣的是,之前的研究表明,这些病毒根据蝙蝠种类的不同而具有不同的趋向性。在这里,我们展示了丝状病毒宿主范围限制的分子基础。我们发现蝙蝠来源的细胞系 FBKT1 和 ZFBK13-76E 分别对 EBOV 和 MARV 显示出优先敏感性,而测试的其他蝙蝠细胞系同样感染这两种病毒。在 FBKT1 和 ZFBK13-76E 中,在 Niemann-Pick C1 (NPC1) 蛋白中发现了独特的氨基酸 (aa) 序列,该蛋白是与丝状病毒糖蛋白 (GP) 相互作用的细胞受体之一。这些氨基酸残基以及 EBOV 和 MARV GP 之间的一些氨基酸差异对于丝状病毒的不同易感性至关重要。综上所述,我们的研究结果表明,蝙蝠 NPC1 直系同源物的异质性是控制丝状病毒物种特异性宿主向性的重要因素。
更新日期:2020-01-15
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