title: Impact of haloperidol and quetiapine on the expression of genes encoding antioxidant enzymes in human neuroblastoma SH-SY5Y cells.
abstract: Antipsychotics are known to alter antioxidant activities in vivo. Therefore, the aim of the present study was to examine in the human neuroblastoma SH-SY5Y cell line the impact of a typical (haloperidol) and an atypical (quetiapine) antipsychotic on the expression of genes encoding the key enzymes of the antioxidant metabolism (Cu, Zn superoxide dismutase; Mn superoxide dismutase; glutathione peroxidase; catalase) and enzymes of the glutathione metabolism (gamma-glutamyl cysteine synthetase, glutathione-S-transferase, gamma-glutamyltranspeptidase, glutathione reductase). The cells were incubated for 24h with 0.3, 3, 30 and 300microM haloperidol and quetiapine, respectively; mRNA levels were measured by polymerase chain reaction. In the present study, we observed mostly significant decreases of mRNA contents. With respect to the key pathways, we detected mainly effects on the mRNA levels of the hydrogen peroxide detoxifying enzymes. Among the enzymes of the glutathione metabolism, glutathione-S-transferase- and gamma-glutamyltranspeptidase-mRNA levels showed the most prominent effects. Taken together, our results demonstrate a significantly reduced expression of genes encoding for antioxidant enzymes after treatment with the antipsychotics, haloperidol and quetiapine.
authors.affiliation: Department of Psychiatry and Psychotherapy, Philipps-University, Marburg, Germany.
authors.forename: Andreas Johannes
authors.initials: AJ
authors.lastname: Schmidt
authors.forename: Ulrich Michael
authors.initials: UM
authors.lastname: Hemmeter
authors.forename: Jürgen-Christian
authors.initials: JC
authors.lastname: Krieg
authors.forename: Helmut
authors.initials: H
authors.lastname: Vedder
authors.forename: Philip
authors.initials: P
authors.lastname: Heiser
mesh_terms: D000975:Antioxidants / Q000378:metabolism*; D014150:Antipsychotic Agents / Q000494:pharmacology*; D002374:Catalase / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism; D045744:Cell Line, Tumor; D003987:Dibenzothiazepines / Q000494:pharmacology*; D015536:Down-Regulation / Q000187:drug effects; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects*; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects*; D005721:Glutamate-Cysteine Ligase / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D005980:Glutathione Reductase / Q000378:metabolism; D005982:Glutathione Transferase / Q000378:metabolism; D006220:Haloperidol / Q000494:pharmacology*; D006801:Humans; D009447:Neuroblastoma / Q000378:metabolism*; D000069348:Quetiapine Fumarate; D012333:RNA, Messenger / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000975:Antioxidants; D014150:Antipsychotic Agents; D003987:Dibenzothiazepines; D012333:RNA, Messenger; D000069348:Quetiapine Fumarate; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D005980:Glutathione Reductase; D005982:Glutathione Transferase; D005721:Glutamate-Cysteine Ligase; D006220:Haloperidol