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Na Sun,Tong Yu,Jun-Xing Zhao,Yaogui Sun,Junbing Jiang,Zhi-Bian Duan,WenkuiWang,Yuan-Liang Hu,Hai-Min Lei,HongquanLi 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.1
Twenty natural compounds isolated fromtraditional Chinese medicines were examined for theirantiviral activities against PCV2 in vitro. Antiviral activitywas analyzed by the assays of blocking of virus entry,inhibition of virus replication and inactivation of virusparticles in the virus suspension. 50% cytotoxic concentration(CC50) and 50% effective concentration (EC50) for eachcompound were determined by using the MTT method andimmunofluorescence assay (IFA), respectively. The resultsobtained from the inhibition of virus replication andinactivation of virus particles showed that the maximuminhibition rates for matrine and scutellarin were 57 and72.69% and their SI were 29.87 and 18.66, respectively. However, the results from the assays of inhibition of virusentry and inhibition of virus replication demonstrated thatboth aesculetin and arecoline hydrochloride stimulatedPCV2 replication, with the maximum stimulation rate of387.3 and 219.4%. In summary, both matrine and scutellarinhad antiviral activity against PCV2, while aesculetin andarecoline hydrochloride promoted PCV2 infection replicationin vitro.