Daphne Genkwa Sieb. et Zucc. Water-Soluble Extracts Act on Enterovirus 71 by Inhibiting Viral Entry
1
Department of Biochemistry, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
2
Graduate Institute of Natural Products, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
3
Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
4
Research Center for Emerging Viral Infections, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Viruses 2012, 4(4), 539-556; https://doi.org/10.3390/v4040539
Received: 7 March 2012
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Revised: 26 March 2012
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Accepted: 3 April 2012
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Published: 11 April 2012
Dried flowers of Daphne genkwa Sieb. et Zucc. (Thymelaeaceae) are a Chinese herbal medicine used as an abortifacient with purgative, diuretic and anti-inflammatory activities. However, the activity of this medicine against enteroviral infections has not been investigated. The water-extract of dried buds of D. genkwa Sieb. et Zucc. (DGFW) was examined against various strains of enterovirus 71 (EV71) by neutralization assay, and its initial mode of action was characterized by time-of-addition assay followed by attachment and penetration assays. Pretreatment of DGFW with virus abolished viral replication, indicating that DGFW inhibits EV71 by targeting the virus. GFW exerts its anti-EV71 effects by inhibiting viral entry without producing cytotoxic side effects and thus provides a potential agent for antiviral chemotherapeutics.
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Keywords:
attachment assay; cytopathic effect; enterovirus 71; Daphne Genkwa Sieb. et Zucc.; penetration assay; yuanhua
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MDPI and ACS Style
Chang, C.-W.; Leu, Y.-L.; Horng, J.-T. Daphne Genkwa Sieb. et Zucc. Water-Soluble Extracts Act on Enterovirus 71 by Inhibiting Viral Entry. Viruses 2012, 4, 539-556. https://doi.org/10.3390/v4040539
AMA Style
Chang C-W, Leu Y-L, Horng J-T. Daphne Genkwa Sieb. et Zucc. Water-Soluble Extracts Act on Enterovirus 71 by Inhibiting Viral Entry. Viruses. 2012; 4(4):539-556. https://doi.org/10.3390/v4040539
Chicago/Turabian StyleChang, Chia-Wen, Yan-Lii Leu, and Jim-Tong Horng. 2012. "Daphne Genkwa Sieb. et Zucc. Water-Soluble Extracts Act on Enterovirus 71 by Inhibiting Viral Entry" Viruses 4, no. 4: 539-556. https://doi.org/10.3390/v4040539
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