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Analysis of Severe Acute Respiratory Syndrome 2 Replication in Explant Cultures of the Human Upper Respiratory Tract Reveals Broad Tissue Tropism of Wild-Type and B.1.1.7 Variant Viruses
The Journal of Infectious Diseases ( IF 5.0 ) Pub Date : 2021-10-13 , DOI: 10.1093/infdis/jiab523
Jessica Schulze 1 , Christin Mache 1 , Anita Balázs 2, 3 , Doris Frey 4 , Daniela Niemeyer 5 , Heidi Olze 6 , Steffen Dommerich 6 , Christian Drosten 5 , Andreas C Hocke 4 , Marcus A Mall 2, 3 , Stefan Hippenstiel 4 , Thorsten Wolff 1
Affiliation  

Background The upper respiratory tract (URT) is the primary entry site for severe acute respiratory syndrome 2 (SARS-CoV-2) and other respiratory viruses, but its involvement in viral amplification and pathogenesis remains incompletely understood. Methods In this study, we investigated primary nasal epithelial cultures, as well as vital explanted tissues, to scrutinize the tropism of wild-type SARS-CoV-2 and the recently emerged B.1.1.7 variant. Results Our analyses revealed a widespread replication competence of SARS-CoV-2 in polarized nasal epithelium as well as in the examined URT and salivary gland tissues, which was also shared by the B.1.1.7 virus. Conclusions In our analyses, we highlighted the active role of these anatomic sites in coronavirus disease 2019.

中文翻译:

人类上呼吸道外植体培养物中严重急性呼吸综合征 2 复制的分析揭示了野生型和 B.1.1.7 变异病毒的广泛组织嗜性

背景 上呼吸道 (URT) 是严重急性呼吸系统综合症 2 (SARS-CoV-2) 和其他呼吸道病毒的主要进入部位,但其参与病毒扩增和发病机制仍不完全清楚。方法 在这项研究中,我们调查了原发性鼻上皮培养物以及重要的外植组织,以仔细检查野生型 SARS-CoV-2 和最近出现的 B.1.1.7 变体的嗜性。结果 我们的分析揭示了 SARS-CoV-2 在极化鼻上皮以及在检查的 URT 和唾液腺组织中的广泛复制能力,这也是 B.1.1.7 病毒所共有的。结论 在我们的分析中,我们强调了这些解剖部位在 2019 年冠状病毒病中的积极作用。
更新日期:2021-10-13
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