Abstract:
:Excitotoxicity plays a major role in the pathogenesis of Huntington disease (HD), a fatal neurodegenerative disorder. Adenosine A(2A) receptors (A(2A)Rs) modulate excitotoxicity and have been suggested to play a pathogenetic role in HD. The main aim of this study was to evaluate the effect of A(2A)R blockade on the expression and functions of NMDA receptors in the striatum of HD mice (R6/2). We found that 3 weeks' treatment with SCH 58261 (0.01 mg/kg/day i.p. from the 8th week of age) modified NR1 and NR2A/NR2B expression in the striatum of R6/2 (Western blotting) while had no effect on NMDA-induced toxicity in corticostriatal slices (electrophysiological experiments). In conclusion, in vivo A(2A)R blockade induced a remodeling of NMDA receptors in the striatum of HD mice. Even though the functional relevance of the above effect remains to be fully elucidated, these results add further evidence to the modulatory role of A(2A)Rs in HD.
journal_name
Neurobiol Disjournal_title
Neurobiology of diseaseauthors
Martire A,Ferrante A,Potenza RL,Armida M,Ferretti R,Pézzola A,Domenici MR,Popoli Pdoi
10.1016/j.nbd.2009.09.012subject
Has Abstractpub_date
2010-01-01 00:00:00pages
99-105issue
1eissn
0969-9961issn
1095-953Xpii
S0969-9961(09)00264-2journal_volume
37pub_type
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