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KMID : 0578320100300020161
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Molecules and Cells
2010 Volume.30 No. 2 p.161 ~ p.165
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Acute Stress Responsive RGS Proteins in the Mouse Brain
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Kim Gyeong-Wha
Lee Young-Hyurk
Jeong Eun-Young
Jung Soon-Woong
Son Hyeon-Wi
Lee Dong-Hoon
Roh Gu-Seob
Kang Sang-Soo
Cho Gyeong-Jae
Choi Wan-Sung
Kim Hyun-Joon
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Abstract
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Regulator of G-protein signaling (RGS) proteins play an important role in G-protein coupled receptor (GPCR) signaling and the activity of some GPCRs is modulated via RGS protein levels during stress response. The aim of this study was to investigate changes in RGS protein mRNA expressions in the mouse brain after 2h restraint stress. The mRNA level of 19 RGS proteins was analyzed using real-time PCR in six brain regions, which included the prefrontal cortex, amygdala, hippocampus, hypothalamus, striatum, and pituitary gland, from control and stressed mouse. We found that the level of mRNA of each RGS varied according to brain region and that two to eight RGS proteins exhibited changes in mRNA levels in each brain region by restraint stress. It was also revealed that RGS4 protein amount was consistent with mRNA level, indicating RGS4 protein may have regulatory roles in the acute stress response.
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KEYWORD
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acute stress, G-PCR, G-protein signaling, RGS protein, stress response
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