title: [Glutathione-dependent regulation of platelet aggregation with neutrophils and tumor cells].
abstract: It is shown that in the presence of reduced glutathione at low concentrations (1-5 microM) the extent of platelet aggregation with neutrophils increases and the lag period of platelet aggregation induced by tumor cells decreases. At the same time in the presence of reduced glutathione at high concentration (3 mM) the extent of platelet aggregation with neutrophils decreases, and the lag period of platelet aggregation induced by tumor cells increases. It is established that glutathione-dependent regulation of the intercellular contact formation between platelets and neutrophils depends on the ratio of glutathione oxidized and reduced forms: at fixed total glutathione concentration of 5 microM, increase of glutathione redox potential from -175 mV to 0 mV led to reduction in platelet aggregation with neutrophils. Thus, it is shown for the first time, that GSH has priming effect on the platelet aggregation with neutrophils and tumor cells, which may contribute to the regulation of inflammatory diseases and cancer.
authors.forename: I V
authors.initials: IV
authors.lastname: Gorudko
authors.forename: E V
authors.initials: EV
authors.lastname: Shamova
authors.forename: L M
authors.initials: LM
authors.lastname: Shishlo
authors.forename: A V
authors.initials: AV
authors.lastname: Mukhortova
authors.forename: V I
authors.initials: VI
authors.lastname: Prokhorova
authors.forename: O M
authors.initials: OM
authors.lastname: Panasenko
authors.forename: S A
authors.initials: SA
authors.lastname: Gusev
authors.forename: S N
authors.initials: SN
authors.lastname: Cherenkevich
mesh_terms: D001792:Blood Platelets / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D002450:Cell Communication / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D005978:Glutathione / Q000494:pharmacology*; D019803:Glutathione Disulfide / Q000494:pharmacology*; D006367:HeLa Cells; D006801:Humans; D009504:Neutrophils / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D010084:Oxidation-Reduction; D010974:Platelet Aggregation / Q000187:drug effects; D016897:Respiratory Burst / Q000187:drug effects; D013053:Spectrophotometry
chemical_list: D005978:Glutathione; D019803:Glutathione Disulfide