Abstract

Influenza remains a serious issue for public health and it’s urgent to discover more effected drugs against influenza virus. Rhamnocitrin, as a flavonoid, its effect on influenza virus infection remains poorly explored. In this study, rhamnocitrin showed antiviral effect and anti-apoptosis on influenza virus A/Aichi/2/1968 (H3N2) in MDCK cells and A549 cells. In addition, molecular docking revealed that rhamnocitrin have good binding activity with the target proteins cGAS and STING, molecular dynamic simulation and surface plasmon resonance showed that rhamnocitrin could form a stable complex with the above proteins. Moreover, the qPCR and western blot assays further verified that rhamnocitrin could reduce type I IFN and proinflammatory cytokines production by inhibiting the cGAS/STING pathway. Taken together, the results suggest that rhamnocitrin could be a potential anti-viral agent against influenza.

Details

Title
Potential antiviral activity of rhamnocitrin against influenza virus H3N2 by inhibiting cGAS/STING pathway in vitro
Author
Chen, Zexing 1 ; Wang, Wanqi 1 ; Zeng, Kefeng 2 ; Zhu, Jinyi 1 ; Wang, Xinhua 1 ; Huang, Wanyi 1 

 The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou, China (GRID:grid.470124.4); The First Affiliated Hospital of Guangzhou Medical University, Institute of Integration of Traditional and Western Medicine, Guangzhou, China (GRID:grid.470124.4) 
 The First Affiliated Hospital of Guangzhou Medical University, Institute of Integration of Traditional and Western Medicine, Guangzhou, China (GRID:grid.470124.4) 
Pages
28287
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3129053084
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.