What is it about?
Influenza is an important health threat and a leading cause of mortality from an infectious disease globally. Vaccinations offer limited protection, and resistance emerged against all antiviral drugs. Therefore, the discovery of new antivirals is key. The current study aims to discover antivirals by targeting an essential component of the pathogen: its channel. Using a combined approach, a synergistic combination of two compounds (arainosine and theobromine) is shown to be particularly potent against swine flu, avian flu, outperforming oseltamivir, the leading antiflu drug. Additionally, the drug duo elicited less resistance in comparison to previous drugs that targeted the same element in the virus. The outcome of the study represents a promising antiviral candidate and an approach that can be applied to many other viruses.
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Why is it important?
Influenza represents a significant health threat to man and animals alike. Present prevention and treatment options are insufficient to curb the current epidemics and will certainly fall short of responding to future pandemics. Annual vaccines provide only 19-60% protection, shifting the responsibility for treatment towards antiviral therapy. Yet, anti-influenza drugs are far from curative, and their effectiveness wanes even further due to the emergence of drug resistance. Therefore, there is an urgent need for effective anti-influenza agents.
Perspectives
The COVID-19 pandemic was a rude awakening exemplifying the importance of the threat that viruses pose. I think that all agree that there is no question if there will be another pandemic, but rather when. Therefore, we need to ensure that we have a rapid approach to combat new viruses and their variants that continuously arise. That is exactly what we're doing in the current study.
Isaiah Arkin
the Hebrew university of jerusalem
Read the Original
This page is a summary of: A bacteria-based search for drugs against avian and swine flu yields a potent and resistance-resilient channel blocker, Proceedings of the National Academy of Sciences, August 2025, Proceedings of the National Academy of Sciences,
DOI: 10.1073/pnas.2502240122.
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