PMID- 20138162 OWN - NLM STAT- MEDLINE DCOM- 20101122 LR - 20131121 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1323 DP - 2010 Apr 6 TI - Influence of CGS 21680, a selective adenosine A(2A) receptor agonist, on NMDA receptor function and expression in the brain of Huntington's disease mice. PG - 184-91 LID - 10.1016/j.brainres.2010.01.080 [doi] AB - The effect of chronic treatment with the selective adenosine A(2A) receptor agonist CGS 21680 on N-Methyl-d-Aspartate (NMDA) receptor function and expression has been studied in the striatum and cortex of R6/2 mice, a genetic mouse model of Huntington's disease (HD). Starting from 8weeks of age, R6/2 and wild type (WT) mice were treated daily with CGS 21680 (0.5mg/kg i.p.) for 3weeks and the expression levels of NMDA receptor subunits were then evaluated. In addition, to study CGS 21680-induced changes in NMDA receptor function, NMDA-induced toxicity in corticostriatal slices from both R6/2 and WT mice was investigated. We found that CGS 21680 increased NR2A subunit expression and the NR2A/NR2B ratio in the cortex of R6/2 mice, having no effect in WT mice. In the striatum, CGS 21680 reduced NR1 expression in both R6/2 and WT mice while the effect on NR2A and NR2/NR2B expression was genotype-dependent, reducing and increasing their expression in WT and R6/2 mice, respectively. On the contrary, NMDA-induced toxicity in corticostriatal slices was not modified by the treatment in WT or HD mice. These results demonstrate that in vivo activation of A(2A) receptors modulates the subunit composition of NMDA receptors in the brain of HD mice. CI - Copyright 2010 Elsevier B.V. All rights reserved. FAU - Ferrante, Antonella AU - Ferrante A AD - Department of Therapeutic Research and Medicine Evaluation, Istituto Superiore di Sanita, Viale Regina Elena, 299, 00161, Rome, Italy. FAU - Martire, Alberto AU - Martire A FAU - Armida, Monica AU - Armida M FAU - Chiodi, Valentina AU - Chiodi V FAU - Pezzola, Antonella AU - Pezzola A FAU - Potenza, Rosa Luisa AU - Potenza RL FAU - Domenici, Maria Rosaria AU - Domenici MR FAU - Popoli, Patrizia AU - Popoli P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100204 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Adenosine A2 Receptor Agonists) RN - 0 (Phenethylamines) RN - 0 (Protein Subunits) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 120225-54-9 (2-(4-(2-carboxyethyl)phenethylamino)-5'-N-ethylcarboxamidoadenosine) RN - K72T3FS567 (Adenosine) SB - IM MH - Adenosine/*analogs & derivatives/pharmacology MH - Adenosine A2 Receptor Agonists/pharmacology MH - Animals MH - Blotting, Western MH - Cerebral Cortex/*drug effects/metabolism/physiopathology MH - Corpus Striatum/*drug effects/metabolism/physiopathology MH - Disease Models, Animal MH - Electrophysiology MH - Female MH - Huntington Disease/*metabolism/physiopathology MH - Male MH - Mice MH - Neurons/drug effects/physiology MH - Phenethylamines/*pharmacology MH - Protein Subunits/*metabolism MH - Receptors, N-Methyl-D-Aspartate/*metabolism MH - Statistics, Nonparametric EDAT- 2010/02/09 06:00 MHDA- 2010/12/14 06:00 CRDT- 2010/02/09 06:00 PHST- 2009/12/17 00:00 [received] PHST- 2010/01/27 00:00 [revised] PHST- 2010/01/28 00:00 [accepted] PHST- 2010/02/09 06:00 [entrez] PHST- 2010/02/09 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] AID - S0006-8993(10)00234-9 [pii] AID - 10.1016/j.brainres.2010.01.080 [doi] PST - ppublish SO - Brain Res. 2010 Apr 6;1323:184-91. doi: 10.1016/j.brainres.2010.01.080. Epub 2010 Feb 4.