Action of NF-κB on the delta opioid receptor gene promoter

被引：18

作者：

Chen, Yulong L. ^{[1
]}

Law, Ping-Yee ^{[1
]}

Loh, Horace H. ^{[1
]}

机构：

[1] Univ Minnesota, Sch Med, Dept Pharmacol, Minneapolis, MN 55455 USA

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 2007年 / 352卷 / 03期

关键词：

delta opioid receptor; NF-kappa B; PC12; cells; nerve growth factor; PI3K;

D O I：

10.1016/j.bbrc.2006.11.103

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The G protein-coupled delta opioid receptor gene (dor) is temporally and spatially expressed during development. The DOR receptor plays important roles in diverse biological processes, including pain control, immune functions, and cell survival. We previously found that PI3K/Akt/NF-kappa B signaling is important in the regulation of dor gene expression during nerve growth factor (NGF)-induced differentiation of PC12h cells, which prompted us to examine whether NF-kappa B p65 is directly or indirectly involved in the regulation of dor promoter activity. In this study, deletional and functional analysis of the dor promoter revealed a 94-bp NGF-responsive fragment upstream of the dor promoter region and involvement of NF-kappa B in regulating the promoter activity. Chromatin immunoprecipitation assays demonstrated that NF-kappa B p65 is directly bound to the dor promoter and such binding is related to NGF/PI3K signaling. Together, the results show that direct association of p65 with the promoter is important in NGF-induced dor promoter activity. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：818 / 822

页数：5

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