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Updated: May 9, 2026

High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
Published on: May 5, 2014
Viral RNA polymerase: a promising antiviral target for influenza A virus
Fangyuan Shi1, Yuanchao Xie, Lifang Shi
1Department of Medicinal Chemistry, School of Pharmacy, Shandong University, China.. wfxu@yahoo.cn.
Abstract:
Influenza A virus, which has a high rate of morbidity and mortality, has become a serious threat to human health and society. Because of antigenic variation, the application of influenza vaccination is limited. Till now, the current antivirals are mainly against the M2 protein (such as adamantanes) and the neuraminidase (such as zanamivir and oseltamivir). However, many viral strains have developed resistance to these marketed antiviral drugs, and it is urgent to find new antivirals for the prevention and treatment of influenza. RNA polymerase that is crucial for the replication and transcription in the virus life cycle has been proved to be an effective target for design of new antivirals. In this review, we describe the recent progress of the structure, function, and inhibitors of the novel target.
Insights
Influenza A virus poses a significant threat due to drug resistance. Targeting the viral RNA polymerase offers a promising new strategy for developing effective influenza antivirals.
Area of Science:
- Virology
- Drug Discovery
- Molecular Biology
Background:
- Influenza A virus causes significant morbidity and mortality.
- Antigenic variation limits vaccine effectiveness.
- Existing antivirals (M2 inhibitors, neuraminidase inhibitors) face widespread resistance.
Purpose of the Study:
- To review recent advances in targeting influenza RNA polymerase.
- To highlight the structure, function, and inhibitors of this novel antiviral target.
Main Methods:
- Literature review of scientific publications.
- Analysis of structural and functional data of influenza RNA polymerase.
- Survey of current and emerging inhibitors.
Main Results:
- Influenza RNA polymerase is essential for viral replication and transcription.
- Drug resistance necessitates novel therapeutic targets.
- Several classes of RNA polymerase inhibitors are under investigation.
Conclusions:
- Targeting influenza RNA polymerase presents a viable strategy for new antiviral development.
- Further research into RNA polymerase inhibitors is crucial for combating resistant influenza strains.
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