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Regulation of DREAM Expression by Group I mGluR

 Jinu Lee  ;  Insook Kim  ;  So Ra Oh  ;  Suk Jin Ko  ;  Mi Kyung Lim  ;  , Dong Goo Kim  ;  Chul Hoon Kim 
 Korean Journal of Physiology & Pharmacology, Vol.15(2) : 95-100, 2011 
Journal Title
 Korean Journal of Physiology & Pharmacology 
Issue Date
DREAM (downstream regulatory element antagonistic modulator) is a calcium-binding protein that regulates dynorphin expression, promotes potassium channel surface expression, and enhances presenilin processing in an expression level-dependent manner. However, no molecular mechanism has yet explained how protein levels of DREAM are regulated. Here we identified group I mGluR (mGluR1/5) as a positive regulator of DREAM protein expression. Overexpression of mGluR1/5 increased the cellular level of DREAM. Up-regulation of DREAM resulted in increased DREAM protein in both the nucleus and cytoplasm, where the protein acts as a transcriptional repressor and a modulator of its interacting proteins, respectively. DHPG (3,5-dihydroxyphenylglycine), a group I mGluR agonist, also up-regulated DREAM expression in cortical neurons. These results suggest that group I mGluR is the first identified receptor that may regulate DREAM activity in neurons.
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1. College of Medicine (의과대학) > Dept. of Pharmacology (약리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Goo(김동구)
Kim, Chul Hoon(김철훈) ORCID logo https://orcid.org/0000-0002-7360-429X
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