PMID- 25941078 OWN - NLM STAT- MEDLINE DCOM- 20160517 LR - 20191210 IS - 1879-0712 (Electronic) IS - 0014-2999 (Linking) VI - 761 DP - 2015 Aug 15 TI - Characterisation of Lu AF33241: A novel, brain-penetrant, dual inhibitor of phosphodiesterase (PDE) 2A and PDE10A. PG - 79-85 LID - S0014-2999(15)00399-4 [pii] LID - 10.1016/j.ejphar.2015.04.040 [doi] AB - Here, we present a preliminary pharmacological characterisation of Lu AF33241, a novel, brain penetrant phosphodiesterase inhibitor of (PDE) 2A and 10A tool compound, in in vitro/in vivo assays indicative of PDE2A and/or PDE10A inhibition, and in vivo models/assays relevant to cognitive processing and antipsychotic-like activity. An assay was also included to investigate potential effects on motor activity. The in vitro selectivity of Lu AF33241 was determined against a panel of PDE enzymes. Lu AF33241 potently inhibited both full-length recombinant hPDE2A (Ki=4.2nM) and hPDE10A (Ki=42nM). The compound moderately inhibited both hPDE1C (Ki=1200nM), hPDE7B (Ki=890nM), and hPDE11A (Ki=1800nM). Lu AF33241 displayed a Ki above 5000nM against all other tested members of the PDE family. Albeit within a narrow dose range, Lu AF33241 attenuated sub-chronic phencyclidine-induced deficits in novel object recognition (3 and 10mg/kg), displayed antipsychotic-like activity in the conditioned avoidance response paradigm (10mg/kg), and did not induce catalepsy within a dose-range of 2-6mg/kg. Further catalepsy studies are needed to investigate a predictive safety window. Lu AF33241 represents a novel PDE2A/PDE10A inhibitor tool compound that may serve to further the understanding of the roles played by these enzymes in various CNS disorders. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Redrobe, John P AU - Redrobe JP AD - Neuroscience Research DK, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Copenhagen, Denmark. Electronic address: JOPR@lundbeck.com. FAU - Rasmussen, Lars K AU - Rasmussen LK AD - Neuroscience Research DK, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Copenhagen, Denmark. FAU - Christoffersen, Claus T AU - Christoffersen CT AD - Neuroscience Research DK, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Copenhagen, Denmark. FAU - Bundgaard, Christoffer AU - Bundgaard C AD - Neuroscience Research DK, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Copenhagen, Denmark. FAU - Jorgensen, Morten AU - Jorgensen M AD - Neuroscience Research DK, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Copenhagen, Denmark. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150502 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Antipsychotic Agents) RN - 0 (Lu AF33241) RN - 0 (Phosphodiesterase Inhibitors) RN - 0 (Quinoxalines) RN - 0 (Triazoles) RN - EC 3.1.4.- (PDE10A protein, human) RN - EC 3.1.4.- (Phosphoric Diester Hydrolases) RN - EC 3.1.4.17 (Cyclic Nucleotide Phosphodiesterases, Type 2) RN - EC 3.1.4.17 (PDE2A protein, human) SB - IM MH - Animals MH - Antipsychotic Agents/metabolism/*pharmacology/toxicity MH - Avoidance Learning/drug effects MH - Behavior, Animal/*drug effects MH - Blood-Brain Barrier/*metabolism MH - Capillary Permeability MH - Catalepsy/chemically induced MH - Cognition/drug effects MH - Cyclic Nucleotide Phosphodiesterases, Type 2/*antagonists & inhibitors/metabolism MH - Exploratory Behavior/drug effects MH - Humans MH - Male MH - Motor Activity/drug effects MH - Phosphodiesterase Inhibitors/metabolism/*pharmacology/toxicity MH - Phosphoric Diester Hydrolases/*metabolism MH - Quinoxalines/metabolism/*pharmacology MH - Rats, Sprague-Dawley MH - Rats, Wistar MH - Recognition, Psychology/drug effects MH - Triazoles/metabolism/*pharmacology OTO - NOTNLM OT - Antipsychotic OT - Cognition OT - Inhibitor OT - PDE10A OT - PDE2A OT - Schizophrenia EDAT- 2015/05/06 06:00 MHDA- 2016/05/18 06:00 CRDT- 2015/05/06 06:00 PHST- 2015/01/09 00:00 [received] PHST- 2015/04/01 00:00 [revised] PHST- 2015/04/16 00:00 [accepted] PHST- 2015/05/06 06:00 [entrez] PHST- 2015/05/06 06:00 [pubmed] PHST- 2016/05/18 06:00 [medline] AID - S0014-2999(15)00399-4 [pii] AID - 10.1016/j.ejphar.2015.04.040 [doi] PST - ppublish SO - Eur J Pharmacol. 2015 Aug 15;761:79-85. doi: 10.1016/j.ejphar.2015.04.040. Epub 2015 May 2.