Recently, attention has focused on the prevention and treatment of respiratory viruses including influenza viruses. We evaluated the antiviral effect of Tilia amurensis honey (TH) against influenza A virus in murine macrophages. Influenza A virus infection was reduced following pretreatment with TH. Pretreatment of murine macrophages with TH increased the production and secretion of type-1 interferon (IFN) and proinflammatory cytokines and increased phosphorylation of the type-1 IFN-related proteins, TANK-binding kinase (TBK), and STAT. Moreover, TH increased the expression of IFN-stimulating genes and increased the expression of IFN-inducible transmembrane (IFITM3), a protein that interferes with virus replication and entry. Taken together, these findings suggest that TH suppresses influenza A virus infection by regulating the innate immune response in macrophages. This supports the development of preventive and therapeutic agents for influenza A virus and enhances the economic value of TH.
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http://dx.doi.org/10.1016/j.biopha.2022.113259 | DOI Listing |
Antiviral Res
January 2025
INSERM, Research Center for Respiratory Diseases, UMR 1100, University of Tours, France. Electronic address:
The respiratory tract hosts a diverse microbial community whose composition varies with anatomical location and throughout life. Rothia mucilaginosa, a common commensal of the upper respiratory tract and oral cavity, has recently been recognized for its ability to inhibit bacteria-triggered pro-inflammatory responses. However, its role in modulating the immune response to viral infections such as influenza A virus (IAV) pneumonia, remains unknown.
View Article and Find Full Text PDFVirology
December 2024
Departments of Surgery & Molecular Microbiology and Immunology, University of Missouri, Columbia, MO, 65212, USA. Electronic address:
The sphingolipid network is sustained principally by the balance of bioactive sphingolipid molecules and their regulation by sphingolipid-metabolizing enzymes. The components in the lipid system display key functions in numerous cellular and disease conditions including virus infections. During the COVID-19 pandemic, there was a fruitful effort to use an inhibitor that blocks the activity of sphingosine kinase (SphK) 2 to cure the devastating disease.
View Article and Find Full Text PDFCell Rep
January 2025
Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA. Electronic address:
Virus neutralization profiles against primary infection sera and corresponding antigenic cartography are integral part of the COVID-19 and influenza vaccine strain selection processes. Human single variant exposure sera have previously defined the antigenic relationships among SARS-CoV-2 variants but are now largely unavailable due to widespread population immunity. Therefore, antigenic characterization of future SARS-CoV-2 variants will require an animal model, analogous to using ferrets for influenza virus.
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Department of Emergency Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212001, China.
Background: In China many respiratory pathogens stayed low activities amid the COVID-19 pandemic due to strict measures and controls. We here aimed to study the epidemiological and clinical characteristics of pediatric inpatients with Mycoplasma pneumoniae pneumonia (MPP) after the mandatory COVID-19 restrictions were lifted, in comparison to those before the COVID-19 pandemic.
Methods: We here included 4,296 pediatric patients with MPP, hospitalized by two medical centers in Jiangsu Province, China, from January 2015 to March 2024.
Sci Rep
January 2025
Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 El Buhouth St, Dokki-Giza, Egypt.
The COVID-19 pandemic has caused significant mortality and morbidity for millions of people. Severe Acute Respiratory Syndrome-2 (SARS-CoV-2) virus is capable of causing severe and fatal diseases. We evaluated the antiviral properties of Aspergillus tamarii SP73-EGY isolate extract against low pathogenic coronavirus (229E), Adeno-7- and Herpes-2 viruses.
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