Volume 25, Issue 7 pp. 975-982
Research Article

In vitro Anti-Herpes Simplex Virus Activity of 1,2,4,6-Tetra-O-galloyl-β-d-glucose from Phyllanthus emblica L. (Euphorbiaceae)

Yangfei Xiang

Yangfei Xiang

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Ying Pei

Ying Pei

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Chang Qu

Chang Qu

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Zhicai Lai

Zhicai Lai

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Zhe Ren

Zhe Ren

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Ke Yang

Ke Yang

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Sheng Xiong

Sheng Xiong

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

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Yingjun Zhang

Corresponding Author

Yingjun Zhang

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China

Yifei Wang, Kaio Kitazato and Yingjun Zhang, Biomedicine Research and Development Center, Jinan University, 510632 Guangzhou, Guangdong, PR China.

E-mail: [email protected]; [email protected]; [email protected]

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Chongren Yang

Chongren Yang

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China

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Dong Wang

Dong Wang

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China

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Qing Liu

Qing Liu

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, PR China

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Kaio Kitazato

Corresponding Author

Kaio Kitazato

Laboratory of Molecular Biology of Infectious Agents, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan

Yifei Wang, Kaio Kitazato and Yingjun Zhang, Biomedicine Research and Development Center, Jinan University, 510632 Guangzhou, Guangdong, PR China.

E-mail: [email protected]; [email protected]; [email protected]

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Yifei Wang

Corresponding Author

Yifei Wang

Guangdong Provincial Key Laboratory of Bioengineering Medicine, Jinan University, Guangzhou, PR China

National Engineering Research Center of Genetic Medicine, Jinan University, Guangzhou, PR China

Yifei Wang, Kaio Kitazato and Yingjun Zhang, Biomedicine Research and Development Center, Jinan University, 510632 Guangzhou, Guangdong, PR China.

E-mail: [email protected]; [email protected]; [email protected]

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First published: 07 January 2011
Citations: 69

Abstract

In this study, 1,2,4,6-tetra-O-galloyl-β-d-glucose (1246TGG), a polyphenolic compound isolated from traditional Chinese medicine Phyllanthus emblica L. (Euphorbiaceae), was found to inhibit herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) infection at different magnitudes of activity in vitro. Further studies revealed that 1246TGG directly inactivated HSV-1 particles, leading to the failure of early infection, including viral attachment and penetration. 1246TGG also suppressed the intracellular growth of HSV-1 within a long period post-infection (from 0 h p.i. to 12 h p.i.), while it might exert an antiviral effect mainly before 3 h p.i. It inhibited HSV-1 E and L gene expressions as well as viral DNA replication but did not affect the RNA synthesis of IE gene in our study. Also, in the presence of 1246TGG, the synthesis of viral protein was reduced. Taken together, it was suggested that 1246TGG might exert anti-HSV activity both by inactivating extracellular viral particles and by inhibiting viral biosynthesis in host cells. These results warrant further studies on the antiviral mechanisms of 1246TGG and suggest that it might be a candidate for HSV therapy. Copyright © 2011 John Wiley & Sons, Ltd.

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