Abstract
Objective
To evaluate the effect on influenza virus of Jinchai, a capsule made of Traditional Chinese Medicine.
Methods
Madin-darby canine kidney (MDCK) cells were infected with the FM1 strain of influenza virus A (subtype H1N1) in vitro. They were used to explore how Jinchai affected cell adsorption, cell membrane fusion, transcription and replication of the influenza virus. Hemagglutinin (HA) protein, intracellular pH, and influenza virus protein acid (PA) polymerase subunit were detected with confocal microscopy and real-time fluorescent quantitative polymerase chain reaction.
Results
Jinchai significantly reduced the expression of HA and PA polymerase subunit mRNA in infected MDCK cells. Jinchai also significantly decreased intracellular pH in infected cells.
Conclusions
Jinchai had strong anti-influenza activity against the influenza virus. It weakened the ability of the influenza virus to adsorb to cell wall and fuse with cell membranes in the early infection stage, and inhibited the transcription and replication of the virus.
Key words: Antiviral agents, Influenza A virus, Jinchai capsule
Footnotes
Supported byNational Significant New Drugs Creation-research and Development of Jinchai Antivirus Capsule (No.2009zx09301-005)
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