title: Different effect of diastereoisomers of L-cystathionine sulfoxide on the stimulus coupled responses of human neutrophils.
abstract: The priming effect of L-cystathionine sulfoxide, which is one of the unusual cystathionine metabolites found in the urine of patients with cystathioninuria, on the stimulus-induced superoxide generation by human neutrophils was examined. The synthetic L-cystathionine sulfoxide significantly enhanced the superoxide generations induced by N-formyl-methionyl-leucyl-phenylalanine [fMLP], opsonized zymosan [OZ], arachidonic acid [AA], and phorbol 12-myristate 13-acetate [PMA]. Then the synthetic L-cystathionine sulfoxide was separated into two diastereoisomers, CS-I and CS-II, which showed a peak at 76 and 83 min on chromatogram by amino acid analyzer, respectively. CS-I enhanced the superoxide generations induced by AA and PMA but not those induced by fMLP and OZ. On the contrary, CS-II enhanced the superoxide generations induced by fMLP and OZ but not those induced by AA and PMA. The superoxide generation induced by PMA with CS-I was suppressed by H-7 and was enhanced by genistein, while that by fMLP with CS-II was suppressed by genistein and was enhanced by H-7.
authors.affiliation: Department of Pediatrics, Department of Chemistry, Department of Medical Biology, Kochi Medical School, Oko-cho, Kochi, Nankoku, 783-8505, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Shimazaki
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: H
authors.initials: H
authors.lastname: Wakiguchi
authors.forename: T
authors.initials: T
authors.lastname: Kurashige
authors.forename: Y
authors.initials: Y
authors.lastname: Sagara
authors.forename: N
authors.initials: N
authors.lastname: Masuoka
authors.forename: J
authors.initials: J
authors.lastname: Ohta
authors.forename: T
authors.initials: T
authors.lastname: Ubuka
authors.forename: H
authors.initials: H
authors.lastname: Kodama
mesh_terms: D019307:1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine / Q000494:pharmacology; D000592:Amino Acid Metabolism, Inborn Errors / Q000652:urine; D003540:Cystathionine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology / Q000652:urine; D004791:Enzyme Inhibitors / Q000494:pharmacology; D019833:Genistein / Q000494:pharmacology; D006801:Humans; D066298:In Vitro Techniques; D009240:N-Formylmethionine Leucyl-Phenylalanine / Q000494:pharmacology; D009504:Neutrophils / Q000187:drug effects* / Q000378:metabolism*; D047428:Protein Kinase Inhibitors; D013237:Stereoisomerism; D013481:Superoxides / Q000378:metabolism; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology
chemical_list: D004791:Enzyme Inhibitors; D047428:Protein Kinase Inhibitors; D013481:Superoxides; D003540:Cystathionine; C010094:cystathionine sulfoxide; D009240:N-Formylmethionine Leucyl-Phenylalanine; D019307:1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine; D019833:Genistein; D013755:Tetradecanoylphorbol Acetate