Abstract
In this study, we investigated the effect of aqueous extract of Prunella vulgaris (Labiatae; PVAE) on the mast cell-mediated allergy model. We found that PVAE (0.001-0.1 g/kg) dose dependently inhibited compound 48/80-induced systemic anaphylaxis and serum histamine release in mice. PVAE decreased the IgE-mediated local allergic reaction, passive cutaneous anaphylaxis. In addition, PVAE attenuated phorbol 12-myristate 13-acetate (PMA) and calcium ionophore A23187-stimulated TNF-α, IL-6, and IL-8 secretion in human mast cells. The inhibitory effect of PVAE on proinflammatory cytokines was nuclear factor-κB (NF-κB) dependent. PVAE suppressed PMA and A23187-induced NF-κB/DNA binding activity and NF-κB-dependent gene reporter assay. Our findings provide evidence that PVAE inhibits mast cell-derived immediate-type allergic reactions and involvement of proinflammatory cytokines and NF-κB in these effects.
Original language | English |
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Pages (from-to) | 921-926 |
Number of pages | 6 |
Journal | Experimental Biology and Medicine |
Volume | 232 |
Issue number | 7 |
State | Published - Jul 2007 |
Keywords
- Anaphylaxis
- Inflammatory cytokine
- Mast cells
- Nuclear factor-κB
- Prunella vulgaris