Related Experiment Video
Updated: Apr 16, 2026
10:05
High-throughput Detection Method for Influenza Virus
Published on: February 4, 2012
26.9K
A cell-based screening system for anti-influenza A virus agents
Wan Ying Wong1, Sheng Wei Loh1, Wei Lun Ng1
1Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Scientific Reports
|March 3, 2015
Summary
A novel nickel complex, NiPT5, shows potent antiviral activity against influenza A virus (IAV). This compound inhibits viral replication by blocking transcription and translation, offering a new therapeutic strategy for drug-resistant IAV infections.
Area of Science:
- Virology
- Immunology
- Medicinal Chemistry
Background:
- Drug-resistant influenza A virus (IAV) poses a significant challenge to antiviral therapies.
- Existing treatments are limited, necessitating the development of novel antiviral agents.
- The nickel (II) complex of polyhydroxybenzaldehyde N4-thiosemicarbazone (NiPT5) has demonstrated anti-inflammatory properties.
Purpose of the Study:
- To develop a cell-based screening system for identifying anti-IAV replication inhibitors.
- To evaluate the antiviral potential of NiPT5 against influenza A virus.
- To elucidate the mechanism of action of NiPT5 in inhibiting IAV replication.
Main Methods:
- Development of a cell-based screening system using a non-replicative IAV strain.
- Treatment of cells with NiPT5 prior to infection with IAV and vesicular stomatitis virus (VSV).
- Analysis of viral RNA (vRNA) transcription and translation, cytokine production, and activation of NF-κB and IRF3 signaling pathways.
Main Results:
- NiPT5 pretreatment protected cells from IAV and VSV infection.
- NiPT5 inhibited IAV replication by suppressing vRNA transcription and translation.
- NiPT5 reduced IAV-induced type I interferon response and cytokine production.
- NiPT5 prevented the activation of NF-κB and IRF3 signaling pathways.
Conclusions:
- NiPT5 is a potent antiviral agent effective against influenza A virus.
- NiPT5 inhibits the early stages of IAV replication, including transcription and translation.
- NiPT5 modulates host immune responses by reducing interferon and cytokine production and inhibiting NF-κB and IRF3 activation.
- The developed cell-based screening system is a valuable tool for identifying novel anti-IAV agents.
