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Arch Virol. 2016 Jun;161(6):1559-67. doi: 10.1007/s00705-016-2825-8. Epub 2016 Mar 21.

In vitro antiviral effect of germacrone on feline calicivirus.

Wu H1, Liu Y1, Zu S1,2, Sun X1,2, Liu C1, Liu D1, Zhang X1, Tian J3, Qu L4.

Author information

1
State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001, People's Republic of China.
2
College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China.
3
State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001, People's Republic of China. tj6049345@126.com.
4
State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001, People's Republic of China. qld@hvri.ac.cn.

Abstract

Feline calicivirus (FCV) often causes respiratory tract and oral disease in cats and is a highly contagious virus. Widespread vaccination does not prevent the spread of FCV. Furthermore, the low fidelity of the RNA-dependent RNA polymerase of FCV leads to the emergence of new variants, some of which show increased virulence. Currently, few effective anti-FCV drugs are available. Here, we found that germacrone, one of the main constituents of volatile oil from rhizoma curcuma, was able to effectively reduce the growth of FCV strain F9 in vitro. This compound exhibited a strong anti-FCV effect mainly in the early phase of the viral life cycle. The antiviral effect depended on the concentration of the drug. In addition, germacrone treatment had a significant inhibitory effect against two other reference strains, 2280 and Bolin, and resulted in a significant reduction in the replication of strains WZ-1 and HRB-SS, which were recently isolated in China. This is the first report of antiviral effects of germacrone against a calicivirus, and extensive in vivo research is needed to evaluate this drug as an antiviral therapeutic agent for FCV.

PMID:
26997613
PMCID:
PMC7087046
DOI:
10.1007/s00705-016-2825-8
[Indexed for MEDLINE]
Free PMC Article

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