Abstract:
:Oxyresveratrol, a major compound purified from Artocarpus lakoocha, a Thai traditional medicinal plant, was evaluated for its mechanism of action and therapeutic efficacy on cutaneous herpes simplex virus (HSV) infection in mice. The inhibitory concentrations for 50% HSV-1 plaque formation of oxyresveratrol, three clinical isolates, thymidine kinase (TK)-deficient and phosphonoacetic acid (PAA)-resistant HSV-1 were 19.8, 23.3, 23.5, 24.8, 25.5 and 21.7microg/ml, respectively. Oxyresveratrol exhibited the inhibitory activity at the early and late phase of viral replication and inhibited the viral replication with pretreatment in one-step growth assay of HSV-1 and HSV-2. Oxyresveratrol inhibited late protein synthesis at 30microg/ml. The combination of oxyresveratrol and acyclovir (ACV) produced synergistic anti-HSV-1 effect, as characterized by the isobologram of plaque inhibition. Mice orally treated with oxyresveratrol (500mg/kg/dose) dose at 8 h before and three times daily had significant delay in herpetic skin lesion development (P<0.05). Topical application of 30% oxyresveratrol ointment five times daily significantly delayed the development of skin lesions and protected mice from death (P<0.0001).
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
Chuanasa T,Phromjai J,Lipipun V,Likhitwitayawuid K,Suzuki M,Pramyothin P,Hattori M,Shiraki Kdoi
10.1016/j.antiviral.2008.05.002subject
Has Abstractpub_date
2008-10-01 00:00:00pages
62-70issue
1eissn
0166-3542issn
1872-9096pii
S0166-3542(08)00291-Xjournal_volume
80pub_type
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