Dengue virus (DENV) causes 390 million infections per year. Infections can be asymptomatic or range from mild fever to severe haemorrhagic fever and shock syndrome. Currently, no effective antivirals or safe universal vaccine is available. In the present work we tested different gold nanoparticles (AuNP) coated with ligands ω-terminated with sugars bearing multiple sulfonate groups. We aimed to identify compounds with antiviral properties due to irreversible (virucidal) rather than reversible (virustatic) inhibition. The ligands varied in length, in number of sulfonated groups as well as their spatial orientation induced by the sugar head groups. We identified two candidates, a glucose- and a lactose-based ligand showing a low EC50 (effective concentration that inhibit 50% of the viral activity) for DENV-2 inhibition, moderate toxicity and a virucidal effect in hepatocytes with titre reduction of Median Tissue Culture Infectious Dose log10TCID50 2.5 and 3.1. Molecular docking simulations complemented the experimental findings suggesting a molecular rationale behind the binding between sulfonated head groups and DENV-2 envelope protein.

• MeSH
• antivirové látky chemie   farmakologie   MeSH
• buněčné linie MeSH
• buňky Hep G2 MeSH
• Cercopithecus aethiops MeSH
• dengue farmakoterapie   MeSH
• hepatocyty virologie   MeSH
• kovové nanočástice chemie   MeSH
• lidé MeSH
• ligandy MeSH
• nádorové buněčné linie MeSH
• simulace molekulového dockingu MeSH
• Vero buňky MeSH
• virus dengue účinky léků   MeSH
• zlato chemie   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• antivirové látky MeSH
• ligandy MeSH
• zlato MeSH