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Abstract Title:

Aqueous extract from a Chaga medicinal mushroom, Inonotus obliquus (higher Basidiomycetes), prevents herpes simplex virus entry through inhibition of viral-induced membrane fusion.

Abstract Source:

Int J Med Mushrooms. 2013 ;15(1):29-38. PMID: 23510282

Abstract Author(s):

Hong-Hui Pan, Xiong-Tao Yu, Ting Li, Hong-Ling Wu, Chun-Wei Jiao, Mian-Hua Cai, Xiang-Min Li, Yi-Zhen Xie, Yi Wang, Tao Peng

Article Affiliation:

Hong-Hui Pan

Abstract:

Chaga medicinal mushroom, Inonotus obliquus, a popular prescription in traditional medicine in Europe and Asia, was used to reduce inflammation in the nasopharynx and to facilitate breathing. The aqueous extract from I. obliquus (AEIO) exhibited marked decrease in herpes simplex virus (HSV) infection (the 50% inhibitory concentration was 3.82μg/mL in the plaque reduction assay and 12.29 μg/mL in the HSV-1/blue assay) as well as safety in Vero cells (the 50% cellular cytotoxicity was>1 mg/mL, and selection index was>80). Using a time course assay, effective stage analysis, and fusion inhibition assay, the mechanism of anti-HSV activity was found against the early stage of viral infection through inhibition of viral-induced membrane fusion. Therefore, AEIO could effectively prevent HSV-1 entry by acting on viral glycoproteins, leading to the prevention of membrane fusion, which is different from nucleoside analog antiherpetics.

Study Type : In Vitro Study

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Sayer Ji
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