期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 348, 期 2, 页码 383-393出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2011.08.014
关键词
Glucocorticoid receptor; Ultradian; Transcription; CBP; P300; Acetylation
资金
- MRC [MR/J008893/1] Funding Source: UKRI
- Medical Research Council [MR/J008893/1] Funding Source: researchfish
In recent years it has become evident that glucocorticoid receptor (GR) action in the nucleus is highly dynamic, characterized by a rapid exchange at the chromatin template. This stochastic mode of GR action couples perfectly with a deterministic pulsatile availability of endogenous ligand in vivo. The endogenous glucocorticoid hormone (cortisol in man and corticosterone in rodent) is secreted from the adrenal gland with an ultradian rhythm made up of pulses at approximately hourly intervals. These two components the rapidly fluctuating ligand and the rapidly exchanging receptor - appear to have evolved to establish and maintain a system that is exquisitely responsive to the physiological demands of the organism. In this review, we discuss recent and innovative work that questions the idea of steady state, static hormone receptor responses, and replaces them with new concepts of stochastic mechanisms and oscillatory activity essential for optimal function in molecular and cellular systems. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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