Antiviral activities of diarylheptanoids isolated from Alpinia officinarum against respiratory syncytial virus, poliovirus, measles virus, and herpes simplex virus type 1 in vitro.
Alpinia officinarum has been used as a folk medicine and contains diarylheptanoids that have various biological activities. However, their antiviral activities are less elucidated. We examined the antiviral activities of nine diarylheptanoids isolated from A. officinarum against respiratory syncytial virus (RSV), poliovirus, measles virus, and herpes simplex virus type 1 (HSV-1) using a plaque reduction assay. The 50% inhibitory concentrations of seven of the nine diarylheptanoids for RSV were moderately but significantly lower than their 50% cytotoxic concentrations, as determined by a trypan blue exclusion assay. Four diarylheptanoids with anti-RSV activity also showed anti-poliovirus and anti-measles virus activities and three of the four exhibited anti-HSV-1 activity. Thus, seven of the nine diarylheptanoids examined exhibited potential antiviral activity against RSV, and most of the diarylheptanoids with anti-RSV activity, including two diarylheptanoids without anti-RSV activity, were effective against poliovirus, measles virus, and/or HSV-1 in vitro. Diarylheptanoids were suggested to have a broad spectrum of antiviral activity.
School of Pharmaceutical Sciences, Kyushu University of Health and Welfare, 1714-1 Yoshino, Nobeoka, Miyazaki 882-8508, Japan.
Katsuhiko
K
Konno
Rie
R
Sawamura
Yi
Y
Sun
Ken
K
Yasukawa
Tomomi
T
Shimizu
Wataru
W
Watanabe
Masahiko
M
Kato
Ryuichi
R
Yamamoto
Masahiko
M
Kurokawa
D032429:Alpinia / Q000737:chemistry*; D000998:Antiviral Agents / Q000494:pharmacology*; D045744:Cell Line, Tumor; D036381:Diarylheptanoids / Q000494:pharmacology*; D018259:Herpesvirus 1, Human / Q000187:drug effects; D006801:Humans; D008459:Measles virus / Q000187:drug effects; D017955:Poliovirus / Q000187:drug effects; D012136:Respiratory Syncytial Viruses / Q000187:drug effects
D000998:Antiviral Agents; D036381:Diarylheptanoids