Abstract:
BACKGROUND:Patchouli alcohol (PA) is a tricyclic sesquiterpene extracted from Pogostemonis Herba, which is a traditional Chinese medicine used for therapy of inflammatory diseases. Recent studies have shown that PA has various pharmacological activities, including anti-bacterial and anti-viral effects. METHODS:In this study, the anti-influenza virus (IAV) activities and mechanisms were investigated both in vitro and in vivo. The inhibitory effects of PA against IAV in vitro were evaluated by plaque assay and immunofluorescence assay. The neuraminidase inhibition assay, hemagglutination inhibition (HI) assay, and western blot assay were used to explore the anti-viral mechanisms. The anti-IAV activities in vivo were determined by mice pneumonia model and HE staining. RESULTS:The results showed that PA significantly inhibited different IAV strains multiplication in vitro, and may block IAV infection through inactivating virus particles directly and interfering with some early stages after virus adsorption. Cellular PI3K/Akt and ERK/MAPK signaling pathways may be involved in the anti-IAV actions of PA. Intranasal administration of PA markedly improved mice survival and attenuated pneumonia symptoms in IAV infected mice, comparable to the effects of Oseltamivir. CONCLUSIONS:Therefore, Patchouli alcohol has the potential to be developed into a novel anti-IAV agent in the future.
journal_name
Virol Jjournal_title
Virology journalauthors
Yu Y,Zhang Y,Wang S,Liu W,Hao C,Wang Wdoi
10.1186/s12985-019-1266-xsubject
Has Abstractpub_date
2019-12-23 00:00:00pages
163issue
1issn
1743-422Xpii
10.1186/s12985-019-1266-xjournal_volume
16pub_type
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