%0 Journal Article %T Antiviral effect of Archidendron pauciflorum leaves extract to hepatitis C virus: An in vitro study in JFH-1 strain %A Chie Aoki %A Hak Hotta %A Marissa Angelina %A Muhammad Hanafi %A Pratiwi Soedarmono %A Sri Hartati %J - %D 2018 %R https://doi.org/10.13181/mji.v27i1.2189 %X Background: Hepatitis C virus (HCV) is a leading cause of chronic liver diseases. Drug resistance to the regimen is also increasing. Hence, there is a need for new anti-HCV agents that are less toxic and more efficacious. The aim of this study is to evaluate the possibility of A. pauciflorum extracts can be a antiviral drug. Methods: Huh-7it cells were infected with the HCV genotype 2a strain JFH-I in the presence of methanol extracts of Archidenron pauciflorum. The methanol extract further partition used n-hexane, ethyl acetate, n-butanol, and water showed in which butanol extracts exerted the strongest IC50 (6.3 g/ml). Further, the butanol fraction was fractionated and yielded into 13 fractions. Results: The methanol extract of the leaves of A. pauciflorum exhibited concentration dependent inhibition against the JFH1 strain of HCV genotype 2a with an IC50 is 72.5 ¦Ìg/ml. The butanol fraction exhibited the highest anti-HCV activity with an IC50 is 6.3 ¦Ìg/ml. The butanol fraction was fractionated which yielded 13 fractions. Fractions 5 and 13 exhibited high anti-HCV activities with IC50 is 5.0 ¦Ìg/ml and 8.5 ¦Ìg/ml and a time-of-addition study demonstrated that fraction 5 inhibited viral infection at the post-entry step, whereas fraction 13 primarily inhibited the viral entry step. Conclusion: The extract A. pauciflorum can be used as a herbal-based antiviral drug %K Archidendron pauciflorum %K HCV %K JFH-1 %U http://mji.ui.ac.id/journal/index.php/mji/article/view/2189