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New insights into the classical and non-classical actions of estrogen: evidence from estrogen receptor knock-out and knock-in mice.

Abstract：

:Estrogen receptor alpha (ERalpha) mediates estrogen (E2) actions in the brain and is critical for normal reproductive function and behavior. In the classical pathway, ERalpha binds to estrogen response elements (EREs) to regulate gene transcription. ERalpha can also participate in several non-classical pathways, including ERE-independent gene transcription via protein-protein interactions with transcription factors and rapid, non-genotropic pathways. To distinguish between ERE-dependent and ERE-independent mechanisms of E2 action in vivo, we have created ERalpha null mice that possess an ER knock-in mutation (E207A/G208A; "AA"), in which the mutant ERalpha cannot bind to DNA but retains activity in ERE-independent pathways (ERalpha(-/AA) mice). Understanding the molecular mechanisms of ERalpha action will be helpful in developing pharmacological therapies that differentiate between ERE-dependent and ERE-independent processes. This review focuses on how the ERalpha(-/AA) model has contributed to our knowledge of ERalpha signaling mechanisms in estrogen regulation of the reproductive axis and sexual behavior.

journal_name

Mol Cell Endocrinol

journal_title

Molecular and cellular endocrinology

authors

McDevitt MA,Glidewell-Kenney C,Jimenez MA,Ahearn PC,Weiss J,Jameson JL,Levine JE

doi

10.1016/j.mce.2008.04.003

subject

Has Abstract

pub_date

2008-08-13 00:00:00

pages

24-30

issue

1-2

eissn

0303-7207

issn

1872-8057

pii

S0303-7207(08)00130-5

journal_volume

290

pub_type

杂志文章,评审

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