title: Phlomis umbrosa root inhibits mast cell-dependent allergic reactions and inflammatory cytokine secretion.
abstract: The effect of an aqueous extract of Phlomis umbrosa Turcz. (Labiatae) root (PUAE) on mast cell-dependent allergic reactions and inflammatory cytokine secretion were investigated. PUAE (0.01-1 g/kg) inhibited compound 48/80-induced systemic allergic reaction. When PUAE was employed in a systemic allergic reaction test, the plasma histamine levels were reduced in a dose-dependent manner. PUAE (0.1 and 1 g/kg) also significantly inhibited the local allergic reaction activated by anti-dinitrophenyl (DNP) IgE. PUAE (0.001-1 mg/mL) dose-dependently inhibited the histamine release from rat peritoneal mast cells activated by compound 48/80 or anti-DNP IgE. PUAE (0.01-1 mg/mL) inhibited the secretion of interleukin (IL)-1beta in phorbol 12-myristate 13-acetate plus calcium ionophore A23187-stimulated human mast cell line (HMC-1) cells. PUAE (1 mg/mL) inhibited the gene expression and production of the main inflammatory cytokine, TNF-alpha, in HMC-1 cells. These results provide evidence that PUAE may be beneficial in the treatment of allergic diseases.
authors.affiliation: College of Pharmacy, Woosuk University, Jeonju, Jeonbuk 565-701, Republic of Korea. tyshin@mail.woosuk.ac.kr
authors.forename: Tae-Yong
authors.initials: TY
authors.lastname: Shin
authors.forename: Sang-Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Dae-Keun
authors.initials: DK
authors.lastname: Kim
authors.forename: Kang-Hyun
authors.initials: KH
authors.lastname: Leem
authors.forename: Jeong-Suk
authors.initials: JS
authors.lastname: Park
mesh_terms: D000818:Animals; D015153:Blotting, Western; D002460:Cell Line; D016207:Cytokines / Q000235:genetics / Q000378:metabolism*; D004797:Enzyme-Linked Immunosorbent Assay; D015870:Gene Expression / Q000187:drug effects; D006636:Histamine Release / Q000187:drug effects; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology / Q000517:prevention & control*; D018836:Inflammation Mediators / Q000378:metabolism; D053583:Interleukin-1beta / Q000378:metabolism; D008297:Male; D008407:Mast Cells / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D051379:Mice; D008813:Mice, Inbred ICR; D031345:Phlomis / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018517:Plant Roots / Q000737:chemistry*; D051381:Rats; D017207:Rats, Sprague-Dawley; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism; D003189:p-Methoxy-N-methylphenethylamine / Q000494:pharmacology
chemical_list: D016207:Cytokines; D018836:Inflammation Mediators; D053583:Interleukin-1beta; D010936:Plant Extracts; D014409:Tumor Necrosis Factor-alpha; D003189:p-Methoxy-N-methylphenethylamine