SARS-CoV-2 ORF3a positively regulates NF-κB activity by enhancing IKKβ-NEMO interaction.
SARS-CoV-2 ORF3a positively regulates NF-κB activity by enhancing IKKβ-NEMO interaction.
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DOI:
10.1016/j.virusres.2023.199086
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发表时间:
2023-04-15
期刊:
影响因子:
5
通讯作者:
Wu J
中科院分区:
文献类型:
--
作者:
Nie Y;Mou L;Long Q;Deng D;Hu R;Cheng J;Wu J
This study screened twenty SARS-CoV-2 genes by luciferase reporter assay and identified ORF3a as an activator of NF-κB pathway. ORF3a induces proinflammatory cytokines in the upstream level of IκBα. ORF3a interacts with IKKb and NEMO and enhances the association of IKKβ-NEMO. Coronavirus disease 2019 (COVID-19) is a global pandemic caused by SARS-CoV-2 infection. Patients with severe COVID-19 exhibit robust induction of proinflammatory cytokines, which are closely associated with the development of acute respiratory distress syndrome. However, the underlying mechanisms of the NF-κB activation mediated by SARS-CoV-2 infection remain poorly understood. Here, we screened SARS-CoV-2 genes and found that ORF3a induces proinflammatory cytokines by activating the NF-κB pathway. Moreover, we found that ORF3a interacts with IKKβ and NEMO and enhances the interaction of IKKβ-NEMO, thereby positively regulating NF-κB activity. Together, these results suggest ORF3a may play pivotal roles in the pathogenesis of SARS-CoV-2 and provide novel insights into the interaction between host immune responses and SARS-CoV-2 infection.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1007/978-3-642-03683-5_11
发表时间:
2009-07-22
期刊:
Molecular Biology of the SARS-Coronavirus
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3.8
作者:
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