Modulation of estrogen receptor α levels by endogenous and exogenous ligands
AbstractERα is a ligand-activated transcription factor, member of the nuclear receptor superfamily. Regulation of ERα levels is intrinsically required for its transcriptional activity and thus for the modulation of the physiological actions of the cognate hormone 17β-estradiol (E2). Indeed, ERα exogenous ligands that target this molecular circuitry are used as drugs in clinical practice. Interestingly, some natural and synthetic molecules, which human beings are commonly exposed to, interfere with the endocrine system and operate through ERα by selectively modifying its signalling. In addition, these molecules may also modulate ERα cellular content. Here, we report the recent advances in our understanding of how exogenous ERα ligands impact on receptor levels and change the physiological E2-dipendent modulation of specific cellular function.
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Copyright (c) 2011 P. La Rosa, M. Marino, F. Acconcia
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