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Bifunctional thiosialosides inhibit influenza virus.
Yang Yang1, Yun He1, Xingzhe Li1
1788 Petit Science Center, Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30302, United States.
Bioorganic & Medicinal Chemistry Letters
|December 31, 2013
Summary
New bivalent S-sialoside analogues were synthesized as potential influenza virus inhibitors. These compounds demonstrated significant antiviral activity in enzyme and cell-based assays against common influenza strains.
Area of Science:
- Virology
- Medicinal Chemistry
- Biochemistry
Background:
- Influenza virus poses a significant global health threat.
- Neuraminidase and hemagglutinin are key viral surface glycoproteins targeted for antiviral development.
- Sialosides are carbohydrate structures mimicking viral binding sites.
Purpose of the Study:
- To synthesize and evaluate novel bivalent S-sialoside analogues as influenza virus inhibitors.
- To investigate the structure-activity relationships of modified S-sialosides.
- To assess the inhibitory potential against clinically relevant influenza strains.
Main Methods:
- Chemical synthesis of bivalent S-sialoside analogues with modifications at the 4-position.
- Enzyme inhibition assays to determine IC50 values.
- Plaque reduction assays using Influenza H1N1 and H3N2 viruses.
Main Results:
- A panel of bivalent S-sialoside analogues was successfully synthesized.
- Compounds exhibited IC50 values in the low micromolar to high nanomolar range.
- Effective inhibition was observed against Influenza A H1N1 and H3N2 strains.
Conclusions:
- Bivalent S-sialoside analogues represent a promising class of influenza virus inhibitors.
- Modifications at the 4-position can modulate antiviral potency.
- Further development could lead to novel anti-influenza therapeutics.
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