title: Effect of a Korean traditional formulation, Hwaotang, on superoxide generation in human neutrophils, platelet aggregation in human blood, and nitric oxide, prostaglandin E2 production and paw oedema induced by carrageenan in mice.
abstract: Hwaotang, a traditional Korean medicinal formulation, is a dried decoctum of a mixture of 7 herbal medicines, consisting of Angelica gigantis Radix, Rehmanniae radix, Paeoniae radix, Ciniamomi cortex, Cnidii rhizoma, Persicae semen and Carthami flos. We have investigated that Hwaotang water extract (HOT) has various effects on stimulus-induced superoxide generation in human neutrophils. The effects of HOT on superoxide generation in human neutrophils were investigated. HOT significantly inhibited N-formyl-methionyl-leucyl-phenylalanine (fMLP)-induced superoxide generation in a concentration-dependent manner, but not that induced by arachidonic acid (AA). On the other hand, HOT enhanced superoxide generation induced by phorbol 12-myristate 13-acetate (PMA) in a concentration-dependent manner. The superoxide generation induced by PMA with HOT was suppressed by staurosporine, an inhibitor of protein kinase C, but was not suppressed by genistein, an inhibitor of protein tyrosine kinase. Tyrosyl phosphorylation of a 58 kDa protein, which was increased by fMLP, was inhibited by HOT. HOT also inhibited the generation of a 47 kDa protein and platelet aggregation in human blood. The results suggest that protein tyrosine kinase participates in fMLP-mediated superoxide generation by HOT-treated human neutrophils. HOT inhibited neutrophil functions, including degranulation, superoxide generation, and leukotriene B4 production, without any effect on 5-lipoxygenase activity. HOT reduced nitric oxide (NO) and prostaglandin E2 production in mouse peritoneal macrophages stimulated with lipopolysaccharide, whereas no influence on the activity of iNOS, COX-2 or COX-1 was observed. HOT significantly reduced mouse paw oedema induced by carrageenan. Western blot analysis showed that HOT reduced the expression of iNOS and COX-2. The results indicate that HOT exerts anti-inflammatory effects related to the inhibition of neutrophil functions and of NO and prostaglandin E2 production, which could be due to a decreased expression of iNOS and COX-2.
authors.affiliation: Department of Biochemistry, Molecular Biology and Diagnostics, Dongguk University COM, Kyungju, Kyungbuk, Korea.
authors.forename: Won-Hwan
authors.initials: WH
authors.lastname: Park
authors.forename: Soo-Young
authors.initials: SY
authors.lastname: Park
authors.forename: Hyung-Min
authors.initials: HM
authors.lastname: Kim
authors.forename: Cheorl-Ho
authors.initials: CH
authors.lastname: Kim
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use; D015153:Blotting, Western; D002351:Carrageenan / Q000633:toxicity; D015550:Cell Degranulation / Q000187:drug effects; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; D003571:Cytochalasin B / Q000494:pharmacology; D015232:Dinoprostone / Q000378:metabolism*; D004487:Edema / Q000139:chemically induced / Q000188:drug therapy* / Q000378:metabolism; D005260:Female; D005753:Gastric Mucosa / Q000378:metabolism; D015870:Gene Expression / Q000187:drug effects; D019833:Genistein / Q000494:pharmacology; D006614:Hindlimb / Q000187:drug effects / Q000473:pathology; D006801:Humans; D007213:Indomethacin / Q000494:pharmacology / Q000627:therapeutic use; D007527:Isoenzymes / Q000378:metabolism; D007723:Korea; D007975:Leukotriene B4 / Q000378:metabolism; D008070:Lipopolysaccharides / Q000494:pharmacology; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000378:metabolism; D008518:Medicine, East Asian Traditional; D008565:Membrane Proteins; D051379:Mice; D009240:N-Formylmethionine Leucyl-Phenylalanine / Q000494:pharmacology; D019255:NADPH Oxidases; D009504:Neutrophils / Q000187:drug effects* / Q000378:metabolism; D009569:Nitric Oxide / Q000378:metabolism*; D019001:Nitric Oxide Synthase / Q000378:metabolism; D052247:Nitric Oxide Synthase Type II; D010196:Pancreatic Elastase / Q000378:metabolism; D010750:Phosphoproteins / Q000378:metabolism; D010766:Phosphorylation / Q000187:drug effects; D019000:Phosphotyrosine / Q000032:analysis / Q000276:immunology; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D010974:Platelet Aggregation / Q000187:drug effects*; D011451:Prostaglandin-Endoperoxide Synthases / Q000378:metabolism; D047428:Protein Kinase Inhibitors; D019311:Staurosporine / Q000494:pharmacology; D013270:Stomach / Q000737:chemistry / Q000187:drug effects; D013481:Superoxides / Q000378:metabolism*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D013929:Thromboxane B2 / Q000378:metabolism
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D007527:Isoenzymes; D008070:Lipopolysaccharides; D008565:Membrane Proteins; D010750:Phosphoproteins; D010936:Plant Extracts; D047428:Protein Kinase Inhibitors; D013481:Superoxides; D007975:Leukotriene B4; D019000:Phosphotyrosine; D009569:Nitric Oxide; D003571:Cytochalasin B; D013929:Thromboxane B2; D009240:N-Formylmethionine Leucyl-Phenylalanine; D002351:Carrageenan; D019833:Genistein; C496319:NOS2 protein, human; D019001:Nitric Oxide Synthase; D052247:Nitric Oxide Synthase Type II; C496317:Nos2 protein, mouse; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; C496511:PTGS1 protein, human; C496540:PTGS2 protein, human; D011451:Prostaglandin-Endoperoxide Synthases; C496512:Ptgs1 protein, mouse; D019255:NADPH Oxidases; C060505:neutrophil cytosolic factor 1; D010196:Pancreatic Elastase; D019311:Staurosporine; D015232:Dinoprostone; D013755:Tetradecanoylphorbol Acetate; D007213:Indomethacin