@article{421add872cdb4cbe929513e01b64cd38,
title = "The Synergistic Inhibition of Coronavirus Replication and Induced Cytokine Production by Ciclesonide and the Tylophorine-Based Compound Dbq33b",
abstract = "Ciclesonide is an inhaled corticosteroid used to treat asthma and has been repurposed as a treatment for mildly ill COVID-19 patients, but its precise mechanism of action is unclear. Herein, we report that ciclesonide blocks the coronavirus-induced production of the cytokines IL-6, IL-8, and MCP-1 by increasing IκBα protein levels and significantly decreasing p65 nuclear translocation. Furthermore, we found that the combination of ciclesonide and dbq33b, a potent tylophorine-based coronavirus inhibitor that affects coronavirus-induced NF-κB activation a little, additively and synergistically decreased coronavirus-induced IL-6, IL-8, and MCP-1 cytokine levels, and synergistically inhibited the replication of both HCoV-OC43 and SARS-CoV-2. Collectively, the combination of ciclesonide and dbq33b merits consideration as a treatment for COVID-19 patients who may otherwise be overwhelmed by high viral loads and an NF-κB-mediated cytokine storm.",
keywords = "ciclesonide, COVID-19, cytokine, IL-6, IL-8, MCP-1, MCP-3, OC43, SARS-CoV-2, tylophorine",
author = "Lee, {Yue Zhi} and Hsu, {Hsing Yu} and Yang, {Cheng Wei} and Lin, {Yi Ling} and Chang, {Sui Yuan} and Yang, {Ruey Bing} and Liang, {Jian Jong} and Chao, {Tai Ling} and Liao, {Chun Che} and Kao, {Han Chieh} and Chang, {Jang Yang} and Sytwu, {Huey Kang} and Chen, {Chiung Tong} and Lee, {Shiow Ju}",
note = "Funding Information: This work was funded by the National Health Research Institutes, Taiwan; Academia Sinica (AS-CFII-108-102); the Ministry of Science and Technology, Taiwan, (MOST 109-2327-B-400-003; MOST 109-3114-Y-001-001; MOST 109-2811-B-400-518; MOST 109-2327-B-002-009; MOST 110-2811-B-400-522); and the Ministry of Health and Welfare, Taiwan, for an emergent grant of COVID-19. Publisher Copyright: {\textcopyright} 2022 by the authors.",
year = "2022",
month = jul,
doi = "10.3390/pharmaceutics14071511",
language = "English",
volume = "14",
journal = "Pharmaceutics",
issn = "1999-4923",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "7",
}