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H outtuynia cordata modulates oral innate immune mediators: potential role of herbal plant on oral health
Author(s) -
Satthakarn S,
Chung WO,
Promsong A,
Nittayananta W
Publication year - 2015
Publication title -
oral diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.953
H-Index - 87
eISSN - 1601-0825
pISSN - 1354-523X
DOI - 10.1111/odi.12313
Subject(s) - innate immune system , houttuynia cordata , immune system , cytotoxicity , slpi , chemokine , immunity , immunology , beta defensin , biology , chemistry , pharmacology , traditional medicine , medicine , inflammation , biochemistry , in vitro , chromatography , extraction (chemistry)
Objective Epithelial cells play an active role in oral innate immunity by producing various immune mediators. Houttuynia cordata Thunb ( H. cordata ), a herbal plant found in Asia, possesses many activities. However, its impacts on oral innate immunity have never been reported. The aim of this study was to determine the effects of H. cordata extract on the expression of innate immune mediators produced by oral epithelial cells. Materials and Methods Primary gingival epithelial cells ( GEC s) were treated with various concentrations of the extract for 18 h. The gene expression of hBD 2, SLPI , cytokines, and chemokines was measured using quantitative real‐time RT ‐ PCR . The secreted proteins in the culture supernatants were detected by ELISA or Luminex assay. Cytotoxicity of the extract was assessed using CellTiter‐Blue Assay. Results H. cordata significantly induced the expression of hBD 2, SLPI , IL ‐8, and CCL 20 in a dose‐dependent manner without cytotoxicity. The secreted hBD 2 and SLPI proteins were modulated, and the levels of IL ‐2, IL ‐6, IL ‐8, and IFN ‐ γ were significantly induced by the extract. Conclusions Our data indicated that H. cordata can modulate oral innate immune mediators. These findings may lead to the development of new topical agents from H. cordata for the prevention and treatment of immune‐mediated oral diseases.