Title : Epigenetic upregulation of PSD-95 contributes to the rewarding behavior by morphine conditioning.

Pub. Date : 2014 Jun 5

PMID : 24704371






5 Functional Relationships(s)
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1 Epigenetic upregulation of PSD-95 contributes to the rewarding behavior by morphine conditioning. Morphine discs large MAGUK scaffold protein 4 Rattus norvegicus
2 The present study revealed a significantly increased mRNA and protein expression of PSD-95 in the VTA of the rats conditioned with morphine. Morphine discs large MAGUK scaffold protein 4 Rattus norvegicus
3 An upregulation of expression of phosphorylated cAMP response element-binding protein (pCREB) and the occupancy of pCREB in the Dlg4 promoter region were shown in the VTA of the morphine-conditioned rats. Morphine discs large MAGUK scaffold protein 4 Rattus norvegicus
4 Inhibition of pCREB activity significantly decreased the histone H3 acetylation in Dlg4 promoter region, PSD-95 upregulation, enhancement of glutamatergic strength and the preference to morphine-paired chamber in the rats with morphine conditioning. Morphine discs large MAGUK scaffold protein 4 Rattus norvegicus
5 These results suggested that CREB-mediated epigenetic upregulation of PSD-95 critically contributed to the enhanced glutamatergic transmission and rewarding behavior induced by morphine conditioning. Morphine discs large MAGUK scaffold protein 4 Rattus norvegicus