Antipsychotic drugs activate SREBP-regulated expression of lipid biosynthetic genes in cultured human glioma cells: a novel mechanism of action?

作者: J Fernø , M B Raeder , A O Vik-Mo , S Skrede , M Glambek

DOI: 10.1038/SJ.TPJ.6500323

关键词:

摘要: Several studies have reported on structural abnormalities, decreased myelination and oligodendrocyte dysfunction in post-mortem brains from schizophrenic patients. Glia-derived cholesterol is essential for both synaptogenesis the CNS. Lipogenesis myelin synthesis are thus interesting etiological candidate targets schizophrenia. Using a microarray approach, we here demonstrate that antipsychotic drugs clozapine haloperidol upregulate several genes involved fatty acid biosynthesis cultured human glioma cells, including HMGCR (3-hydroxy-3-methylglutaryl-coenzyme A reductase), HMGCS1 synthase-1), FASN (fatty synthase) SCD (stearoyl-CoA desaturase). The changes gene expression were followed by enhanced HMGCR-enzyme activity elevated cellular levels of triglycerides. upregulated all known to be controlled sterol regulatory element-binding protein (SREBP) transcription factors. We show activate SREBP system. antipsychotic-induced SREBP-mediated increase glial cell lipogenesis could represent novel mechanism action, may also relevant metabolic side effects antipsychotics.

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