PMID- 25093543 OWN - NLM STAT- MEDLINE DCOM- 20150511 LR - 20211203 IS - 1872-7549 (Electronic) IS - 0166-4328 (Print) IS - 0166-4328 (Linking) VI - 273 DP - 2014 Oct 15 TI - Asenapine sensitization from adolescence to adulthood and its potential molecular basis. PG - 166-76 LID - S0166-4328(14)00491-4 [pii] LID - 10.1016/j.bbr.2014.07.042 [doi] AB - Asenapine is a new antipsychotic drug that induces a long-lasting behavioral sensitization in adult rats. The present study investigated the developmental impacts of adolescent asenapine treatment on drug sensitivity and on 3 proteins implicated in the action of antipsychotic drugs (i.e. brain-derived neurotrophic factor (BDNF), dopamine D2 receptor, and DeltaFosB) in adulthood. Male adolescent Sprague-Dawley rats (postnatal days, P 43-48) were first treated with asenapine (0.05, 0.10 or 0.20mg/kg, sc) and tested in the conditioned avoidance or PCP (2.0mg/kg, sc)-induced hyperlocomotion tasks for 5 days. After they became adults ( approximately P 76), asenapine sensitization was assessed in a single avoidance or PCP-induced hyperlocomotion challenge test with all rats being injected with asenapine (0.10mg/kg, sc). Rats were then sacrificed 1 day later and BDNF, D2 and DeltaFosB in the prefrontal cortex, striatum and hippocampus were examined using Western blotting. In adolescence, repeated asenapine treatment produced a persistent and dose-dependent inhibition of avoidance response, spontaneous motor activity and PCP-induced hyperlocomotion. In the asenapine challenge test, adult rats treated with asenapine (0.10 and 0.20mg/kg) in adolescence made significantly fewer avoidance responses and showed a stronger inhibition of spontaneous motor activity than those previously treated with saline. However, no group difference in the levels of BDNF, D2 and DeltaFosB expression was found. These findings suggest that although adolescent asenapine treatment for a short period of time induces a robust behavioral sensitization that persists into adulthood, such a long-term effect is not likely to be mediated by BDNF, D2 and DeltaFosB. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Shu, Qing AU - Shu Q AD - Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, PR China; Department of Psychology, University of Nebraska-Lincoln, USA. FAU - Qin, Rongyin AU - Qin R AD - Department of Neurology, The Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, PR China; Department of Psychology, University of Nebraska-Lincoln, USA; Department of Neurology, Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, Jiangsu, PR China. FAU - Chen, Yingzhu AU - Chen Y AD - Department of Neurology, The Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, PR China. FAU - Hu, Gang AU - Hu G AD - Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu, PR China. Electronic address: ghu@njmu.edu.cn. FAU - Li, Ming AU - Li M AD - Department of Psychology, University of Nebraska-Lincoln, USA. Electronic address: mli@unl.edu. LA - eng GR - R01 MH085635/MH/NIMH NIH HHS/United States GR - R01MH085635/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140802 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Dibenzocycloheptenes) RN - 0 (Fosb protein, rat) RN - 0 (Heterocyclic Compounds, 4 or More Rings) RN - 0 (Proto-Oncogene Proteins c-fos) RN - 0 (Receptors, Dopamine D2) RN - J1DOI7UV76 (Phencyclidine) RN - JKZ19V908O (asenapine) SB - IM MH - Age Factors MH - Animals MH - Avoidance Learning/*drug effects MH - Brain/*drug effects/*metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Dibenzocycloheptenes MH - Heterocyclic Compounds, 4 or More Rings/administration & dosage/*pharmacology MH - Hyperkinesis/chemically induced MH - Male MH - Motor Activity/*drug effects MH - Phencyclidine/toxicity MH - Proto-Oncogene Proteins c-fos/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Dopamine D2/metabolism MH - Vocalization, Animal/drug effects PMC - PMC4154364 MID - NIHMS620505 OTO - NOTNLM OT - Asenapine OT - BDNF OT - Conditioned avoidance response OT - Dopamine D(2) receptor OT - Phencyclidine OT - DeltaFosB COIS- Conflicts of interest: None The authors report no conflicts of interest. EDAT- 2014/08/06 06:00 MHDA- 2015/05/12 06:00 PMCR- 2015/10/15 CRDT- 2014/08/06 06:00 PHST- 2014/03/31 00:00 [received] PHST- 2014/07/22 00:00 [revised] PHST- 2014/07/25 00:00 [accepted] PHST- 2014/08/06 06:00 [entrez] PHST- 2014/08/06 06:00 [pubmed] PHST- 2015/05/12 06:00 [medline] PHST- 2015/10/15 00:00 [pmc-release] AID - S0166-4328(14)00491-4 [pii] AID - 10.1016/j.bbr.2014.07.042 [doi] PST - ppublish SO - Behav Brain Res. 2014 Oct 15;273:166-76. doi: 10.1016/j.bbr.2014.07.042. Epub 2014 Aug 2.