Abstract:
:Extraordinal activation of nigrostriatal and mesolimbic dopaminergic systems (midbrain dopaminergic system) is thought to be one of the most important etiologies for schizophrenia, though the reason why unusual hyperactivation of the dopaminergic system occurs in the schizophrenic brain is quite obscure. Dysbindin, one of the most susceptible genes for schizophrenia, has been reported to be reduced in the schizophrenic brain. In situ hybridization analysis showed the mRNA expression of dysbindin in the mouse substantia nigra. Furthermore, suppression of dysbindin expression in PC12 cells resulted in an increase of the expression of SNAP25, which plays an important role in neurotransmitter release, and increased the release of dopamine. On the other hand, up-regulation of dysbindin expression in PC12 cells showed a tendency to decrease the expression of SNAP25. These data suggest that dysbindin might regulate the dopamine release of the dopaminergic system via modulation of the expression of SNAP25.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kumamoto N,Matsuzaki S,Inoue K,Hattori T,Shimizu S,Hashimoto R,Yamatodani A,Katayama T,Tohyama Mdoi
10.1016/j.bbrc.2006.04.163subject
Has Abstractpub_date
2006-06-30 00:00:00pages
904-9issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(06)00985-5journal_volume
345pub_type
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