PMID- 24236947 OWN - NLM STAT- MEDLINE DCOM- 20141007 LR - 20211021 IS - 1476-5381 (Electronic) IS - 0007-1188 (Print) IS - 0007-1188 (Linking) VI - 171 IP - 3 DP - 2014 Feb TI - GluN2C/GluN2D subunit-selective NMDA receptor potentiator CIQ reverses MK-801-induced impairment in prepulse inhibition and working memory in Y-maze test in mice. PG - 799-809 LID - 10.1111/bph.12518 [doi] AB - BACKGROUND AND PURPOSE: Despite ample evidence supporting the N-methyl-D-aspartate receptor (NMDAR) hypofunction hypothesis of schizophrenia, progress in the development of effective therapeutics based on this hypothesis has been limited. Facilitation of NMDA receptor function by co-agonists (D-serine or glycine) only partially alleviates the symptoms in schizophrenia; other means to facilitate NMDA receptors are required. NMDA receptor sub-types differ in their subunit composition, with varied GluN2 subunits (GluN2A-GluN2D) imparting different physiological, biochemical and pharmacological properties. CIQ is a positive allosteric modulator that is selective for GluN2C/GluN2D-containing NMDA receptors (Mullasseril et al.). EXPERIMENTAL APPROACH: The effect of systemic administration of CIQ was tested on impairment in prepulse inhibition (PPI), hyperlocomotion and stereotypy induced by i.p. administration of MK-801 and methamphetamine. The effect of CIQ was also tested on MK-801-induced impairment in working memory in Y-maze spontaneous alternation test. KEY RESULTS: We found that systemic administration of CIQ (20 mg.kg(-)(1), i.p.) in mice reversed MK-801 (0.15 mg.kg(-)(1), i.p.)-induced, but not methamphetamine (3 mg.kg(-)(1), i.p.)-induced, deficit in PPI. MK-801 increased the startle amplitude to pulse alone, which was not reversed by CIQ. In contrast, methamphetamine reduced the startle amplitude to pulse alone, which was reversed by CIQ. CIQ also partially attenuated MK-801- and methamphetamine-induced hyperlocomotion and stereotyped behaviours. Additionally, CIQ reversed the MK-801-induced working memory deficit in spontaneous alternation in a Y-maze. CONCLUSION AND IMPLICATIONS: Together, these results suggest that facilitation of GluN2C/GluN2D-containing receptors may serve as an important therapeutic strategy for treating positive and cognitive symptoms in schizophrenia. CI - (c) 2013 The British Pharmacological Society. FAU - Suryavanshi, P S AU - Suryavanshi PS AD - Department of Pharmacology, Creighton University, Omaha, NE, USA. FAU - Ugale, R R AU - Ugale RR FAU - Yilmazer-Hanke, D AU - Yilmazer-Hanke D FAU - Stairs, D J AU - Stairs DJ FAU - Dravid, S M AU - Dravid SM LA - eng GR - G20 RR024001/RR/NCRR NIH HHS/United States GR - G20RR024001/RR/NCRR NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PL - England TA - Br J Pharmacol JT - British journal of pharmacology JID - 7502536 RN - 0 ((3-chlorophenyl)(6,7-dimethoxy-1-((4-methoxyphenoxy)methyl)-3,4-dihydroisoquinolin-2(1H)-yl)methanone) RN - 0 (Isoquinolines) RN - 0 (NR2C NMDA receptor) RN - 0 (NR2D NMDA receptor) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neuroprotective Agents) RN - 0 (Nootropic Agents) RN - 0 (Protein Subunits) RN - 0 (Quinolines) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 6LR8C1B66Q (Dizocilpine Maleate) SB - IM MH - Allosteric Regulation/drug effects MH - Animals MH - Behavior, Animal/drug effects MH - Cognition Disorders/etiology/prevention & control MH - *Disease Models, Animal MH - Dizocilpine Maleate MH - Hyperkinesis/etiology/prevention & control MH - Isoquinolines/*therapeutic use MH - Male MH - Maze Learning/drug effects MH - Memory, Short-Term/drug effects MH - Mice MH - Mice, Inbred C57BL MH - Motor Activity/drug effects MH - Nerve Tissue Proteins/agonists/chemistry/metabolism MH - Neural Inhibition/drug effects MH - Neuroprotective Agents/*therapeutic use MH - Nootropic Agents/*therapeutic use MH - Protein Subunits/agonists/chemistry/metabolism MH - Quinolines/*therapeutic use MH - Receptors, N-Methyl-D-Aspartate/*agonists/chemistry/metabolism MH - Schizophrenia/*drug therapy/physiopathology PMC - PMC3969090 OTO - NOTNLM OT - CIQ OT - GRIN2C OT - GRIN2D OT - GluN2C OT - GluN2D OT - NMDA receptor OT - prepulse inhibition OT - schizophrenia OT - working memory in Y-maze EDAT- 2013/11/19 06:00 MHDA- 2014/10/08 06:00 PMCR- 2015/02/01 CRDT- 2013/11/19 06:00 PHST- 2013/07/04 00:00 [received] PHST- 2013/11/07 00:00 [revised] PHST- 2013/11/12 00:00 [accepted] PHST- 2013/11/19 06:00 [entrez] PHST- 2013/11/19 06:00 [pubmed] PHST- 2014/10/08 06:00 [medline] PHST- 2015/02/01 00:00 [pmc-release] AID - 10.1111/bph.12518 [doi] PST - ppublish SO - Br J Pharmacol. 2014 Feb;171(3):799-809. doi: 10.1111/bph.12518.