Porcine deltacoronavirus resists antibody neutralization through cell-to-cell transmission
| Autor: | Sijin Xia, Wenwen Xiao, Xuerui Zhu, Shusen Liao, Jiahui Guo, Junwei Zhou, Shaobo Xiao, Puxian Fang, Liurong Fang |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Emerging Microbes and Infections, Vol 12, Iss 1 (2023) |
| Druh dokumentu: | article |
| ISSN: | 22221751 2222-1751 |
| DOI: | 10.1080/22221751.2023.2207688 |
| Popis: | ABSTRACTPorcine deltacoronavirus (PDCoV) is an emerging enteric coronavirus that has been reported to infect a variety of animals and even humans. Cell–cell fusion has been identified as an alternative pathway for the cell-to-cell transmission of certain viruses, but the ability of PDCoV to exploit this transmission model, and the relevant mechanisms, have not been fully elucidated. Herein, we provide evidence that cell-to-cell transmission is the main mechanism supporting PDCoV spread in cell culture and that this efficient spread model is mediated by spike glycoprotein-driven cell–cell fusion. We found that PDCoV efficiently spread to non-susceptible cells via cell-to-cell transmission, and demonstrated that functional receptor porcine aminopeptidase N and cathepsins in endosomes are involved in the cell-to-cell transmission of PDCoV. Most importantly, compared with non-cell-to-cell infection, the cell-to-cell transmission of PDCoV was resistant to neutralizing antibodies and immune sera that potently neutralized free viruses. Taken together, our study revealed key characteristics of the cell-to-cell transmission of PDCoV and provided new insights into the mechanism of PDCoV infection. |
| Databáze: | Directory of Open Access Journals |
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