5-HT6 receptor antagonist SB-271046 enhances extracellular levels of monoamines in the rat medial prefrontal cortex

被引:134
作者
Lacroix, LP [1 ]
Dawson, LA [1 ]
Hagan, JJ [1 ]
Heidbreder, CA [1 ]
机构
[1] GlaxoSmithKline, Ctr Excellence Drug Discovery Psychiat, Dept Biol, I-37135 Verona, Italy
关键词
5-HT6; receptor; dopamine; medial prefrontal cortex; microdialysis; norepinephrine; SB-271046; serotonin;
D O I
10.1002/syn.10288
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The present study investigated the neurochemical effects of the selective 5-HT6 receptor antagonist SB-271046 in the rat medial prefrontal cortex (mPFC). The effect of SB-271046 on extracellular levels of dopamine (DA), norepinephrine (NE), and serotonin (5-HT) in the mPFC was examined using in vivo microdialysis in the freely moving rat. SB-271046 (10 mg/kg, p.o.) produced a significant increase in extracellular levels of both DA and NE without altering 5-HT neurotransmission. These results further support the rationale for the use of 5-HT6 receptor antagonists in the treatment of cognitive dysfunction associated with psychiatric diseases. (C) 2003 Wiley-Liss, Inc.
引用
收藏
页码:158 / 164
页数:7
相关论文
共 48 条
[1]  
Acquas E, 1998, J NEUROCHEM, V70, P1088
[2]   Local application of SCH 39166 reversibly and dose-dependently decreases acetylcholine release in the rat striatum [J].
Acquas, E ;
Di Chiara, G .
EUROPEAN JOURNAL OF PHARMACOLOGY, 1999, 383 (03) :275-279
[3]   α-1 noradrenergic receptor stimulation impairs prefrontal cortical cognitive function [J].
Arnsten, AFT ;
Mathew, R ;
Ubriani, R ;
Taylor, JR ;
Li, BM .
BIOLOGICAL PSYCHIATRY, 1999, 45 (01) :26-31
[4]   Catecholamine regulation of the prefrontal cortex [J].
Arnsten, AFT .
JOURNAL OF PSYCHOPHARMACOLOGY, 1997, 11 (02) :151-162
[5]  
Arnsten AFT, 1996, ARCH GEN PSYCHIAT, V53, P448
[6]   DOPAMINE D-1 RECEPTOR MECHANISMS IN THE COGNITIVE PERFORMANCE OF YOUNG-ADULT AND AGED MONKEYS [J].
ARNSTEN, AFT ;
CAI, JX ;
MURPHY, BL ;
GOLDMANRAKIC, PS .
PSYCHOPHARMACOLOGY, 1994, 116 (02) :143-151
[7]   Stimulation of type 1 and type 8 Ca2+/calmodulin-sensitive adenylyl cyclases by the Gs-coupled 5-hydroxytryptamine subtype 5-HT7A receptor [J].
Baker, LP ;
Nielsen, MD ;
Impey, S ;
Metcalf, MA ;
Poser, SW ;
Chan, G ;
Obrietan, K ;
Hamblin, MW ;
Storm, DR .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1998, 273 (28) :17469-17476
[8]   Investigation of stretching behaviour induced by the selective 5-HT6 receptor antagonist, Ro 04-6790, in rats [J].
Bentley, JC ;
Bourson, A ;
Boess, FG ;
Fone, KCF ;
Marsden, CA ;
Petit, N ;
Sleight, AJ .
BRITISH JOURNAL OF PHARMACOLOGY, 1999, 126 (07) :1537-1542
[9]  
BENTLEY JC, 1997, BR ASS PSYCH M, P255
[10]  
BOURSON A, 1995, J PHARMACOL EXP THER, V274, P173