Expression of estrogen receptor ? in the mouse cerebral cortex.

ABSTRACT: Although estrogen receptor alpha (ER?) and 17?-estradiol play critical roles in protecting the cerebral cortex from ischemia-induced damage, there has been some controversy about the expression of ER? in this region of the brain. We have examined ER? mRNA and protein levels in the cerebral cortices of female mice at postnatal days 5 and 17 and at 4, 13, and 18 months of age. We found that although ER? transcript levels declined from postnatal day 5 through 18 months of age, ER? protein levels remained stable. Importantly, expression of the E2-regulated progesterone receptor gene was sustained in younger and in older females suggesting that age-related changes in estrogen responsiveness in the cerebral cortex are not due to the absence of ER? protein.

SUBMITTER: Dietrich AK 

PROVIDER: S-EPMC4773199 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature