PMID- 15328528 OWN - NLM STAT- MEDLINE DCOM- 20050214 LR - 20150311 IS - 0893-133X (Print) IS - 0893-133X (Linking) VI - 29 IP - 12 DP - 2004 Dec TI - Neurotensin receptor antagonist SR 142948A alters Fos expression and extrapyramidal side effect profile of typical and atypical antipsychotic drugs. PG - 2200-7 AB - Antipsychotic drugs (APDs) have previously been shown to alter Fos expression in a regionally specific manner. Increases in Fos expression in the nucleus accumbens (NAcc) are common to all clinically effective APDs. In contrast, APD-induced Fos expression increases in the caudate-putamen (CPu) and prefrontal cortex (PFC) are associated with the extrapyramidal side effect liability of typical APDs or the effectiveness against negative symptoms of atypical APDs, respectively. Considerable evidence suggests that the neuropeptide neurotensin (NT) mediates some of the effects of APDs. To determine whether NT neurotransmission is also involved in APD-induced Fos expression in brain regions relevant for therapeutic efficacy, the NT receptor antagonist SR 142948A (10 or 100 microg/kg i.p.) was coadministered with APDs (haloperidol (2.0 mg/kg s.c.), olanzapine (5 mg/kg i.p.), or clozapine (20 mg/kg s.c.)). Fos expression was evaluated in the PFC, NAcc shell, dorsomedial, and dorsolateral CPu and the lateral septum. SR 142948A attenuated haloperidol-induced Fos expression in the CPu but, in contrast, increased olanzapine-induced Fos expression in this brain region. The effects of the NT receptor antagonist were paralleled by its effects on catalepsy in olanzapine--but not haloperidol--treated animals. FAU - Binder, Elisabeth B AU - Binder EB AD - Laboratory of Neuropsychopharmacology, Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA. FAU - Kinkead, Becky AU - Kinkead B FAU - Owens, Michael J AU - Owens MJ FAU - Nemeroff, Charles B AU - Nemeroff CB LA - eng GR - MH-39415/MH/NIMH NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Neuropsychopharmacology JT - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JID - 8904907 RN - 0 (Antipsychotic Agents) RN - 0 (Imidazoles) RN - 0 (Oncogene Proteins v-fos) RN - 0 (Receptors, Neurotensin) RN - 0 (SR 142948A) RN - PJY633525U (Adamantane) SB - IM MH - Adamantane/*analogs & derivatives/*pharmacology MH - Analysis of Variance MH - Animals MH - Antipsychotic Agents/*pharmacology MH - Behavior, Animal MH - Catalepsy/chemically induced/physiopathology MH - Cell Count/methods MH - Dose-Response Relationship, Drug MH - Drug Interactions MH - Imidazoles/*pharmacology MH - Immunohistochemistry/methods MH - Male MH - Neostriatum/anatomy & histology/*drug effects/metabolism MH - Oncogene Proteins v-fos/*metabolism MH - Prefrontal Cortex/anatomy & histology/*drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Neurotensin/antagonists & inhibitors MH - Time Factors EDAT- 2004/08/26 05:00 MHDA- 2005/02/16 09:00 CRDT- 2004/08/26 05:00 PHST- 2004/08/26 05:00 [pubmed] PHST- 2005/02/16 09:00 [medline] PHST- 2004/08/26 05:00 [entrez] AID - 1300546 [pii] AID - 10.1038/sj.npp.1300546 [doi] PST - ppublish SO - Neuropsychopharmacology. 2004 Dec;29(12):2200-7. doi: 10.1038/sj.npp.1300546.