Abstract
We investigated the effect of an aqueous extract of Schizonepeta tenuifolia (STAE) on mast cell-mediated immediate-type hypersensitivity. STAE inhibited systemic allergic reaction induced by compound 48/80 in rats dose- dependently. STAE also inhibited plasma histamine levels induced by compound 48/80. STAE inhibited local allergic reaction activated by anti-dinitrophenyl (DNP) IgE. In addition, STAE does-dependently inhibited histamine release from rat peritoneal mast cells (RPMC) activated by compound 48/80 or anti-DNP IgE. However, STAE had a significant enhancing effect on anti-DNP IgE-induced tumor necrosis factor-α (TNF-α) production from RPMC. These results indicate that STAE inhibits immediate-type hypersensitivity and suggest that STAE can selectively activate the TNF-α production from RPMC.
| Original language | English |
|---|---|
| Pages (from-to) | 705-715 |
| Number of pages | 11 |
| Journal | Immunopharmacology and Immunotoxicology |
| Volume | 21 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1999 |
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