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Activation of Cellular Immunity in Herpes Simplex Virus Type 1‐Infected Mice by the Oral Administration of Aqueous Extract of Moringa oleifera Lam. Leaves
Author(s) -
Kurokawa Masahiko,
Wadhwani Ashish,
Kai Hisahiro,
Hidaka Muneaki,
Yoshida Hiroki,
Sugita Chihiro,
Watanabe Wataru,
Matsuno Koji,
Hagiwara Akinori
Publication year - 2016
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.5580
Subject(s) - herpes simplex virus , oral administration , virus , immunity , moringa , immunology , cellular immunity , splenocyte , medicine , immune system , pharmacology , virology , biology , traditional medicine
Moringa oleifera Lam. is used as a nutritive vegetable and spice. Its ethanol extract has been previously shown to be significantly effective in alleviating herpetic skin lesions in mice. In this study, we evaluated the alleviation by the aqueous extract (AqMOL) and assessed the mode of its anti‐herpetic action in a murine cutaneous herpes simplex virus type 1 (HSV‐1) infection model. AqMOL (300 mg/kg) was administered orally to HSV‐1‐infected mice three times daily on days 0 to 5 after infection. AqMOL significantly limited the development of herpetic skin lesions and reduced virus titers in the brain on day 4 without toxicity. Delayed‐type hypersensitivity (DTH) reaction to inactivated HSV‐1 antigen was significantly stronger in infected mice administered AqMOL and AqMOL augmented interferon (IFN)‐γ production by HSV‐1 antigen from splenocytes of HSV‐1‐infected mice at 4 days post‐infection. AqMOL administration was effective in elevating the ratio of CD11b + and CD49b + subpopulations of splenocytes in infected mice. As DTH is a major host defense mechanism for intradermal HSV infection, augmentation of the DTH response by AqMOL may contribute to their efficacies against HSV‐1 infection. These results provided an important insights into the mechanism by which AqMOL activates cellular immunity. Copyright © 2016 John Wiley & Sons, Ltd.