Title |
Lack of effects of typical and atypical antipsychotics in DARPP-32 and NCS-1 levels in PC12 cells overexpressing NCS-1
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Published in |
Journal of Negative Results in BioMedicine, June 2010
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DOI | 10.1186/1477-5751-9-4 |
Pubmed ID | |
Authors |
Bruno R Souza, Karen CL Torres, Débora M Miranda, Bernardo S Motta, Estêvão Scotti-Muzzi, Melissa M Guimarães, Daniel S Carneiro, Daniela VF Rosa, Renan P Souza, Helton J Reis, Andreas Jeromin, Marco A Romano-Silva |
Abstract |
Schizophrenia is the major psychiatry disorder, which the exact cause remains unknown. However, it is well known that dopamine-mediated neurotransmission imbalance is associated with this pathology and the main target of antipsychotics is the dopamine receptor D2. Recently, it was described alteration in levels of two dopamine signaling related proteins in schizophrenic prefrontal cortex (PFC): Neuronal Calcium Sensor-1 (NCS-1) and DARPP-32. NCS-1, which is upregulated in PFC of schizophrenics, inhibits D2 internalization. DARPP-32, which is decreased in PFC of schizophrenics, is a key downstream effector in transducing dopamine signaling. We previously demonstrated that antipsychotics do not change levels of both proteins in rat's brain. However, since NCS-1 and DARPP-32 levels are not altered in wild type rats, we treated wild type PC12 cells (PC12 WT) and PC12 cells stably overexpressing NCS-1 (PC12 Clone) with antipsychotics to investigate if NCS-1 upregulation modulates DARPP-32 expression in response to antipsychotics treatment. |
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