17beta-estradiol-induced activation of ERK1/2 through endogenous androgen receptor-estradiol receptor alpha-Src complex in human prostate cells.

Abstract:

:We examined the effect of estrogens on mitogen-activated protein kinase (MAPK) in EPN cells, a line of epithelial cells derived from human normal prostate. 17beta-estradiol (E2) caused a rapid and transient activation of MAPK (ERK1/2) within 5 min. This effect was counteracted by the anti-estrogen ICI 182-780 and by MEK inhibitor PD098059. The activation of ERK1/2 through 17beta-estradiol triggered simultaneous association of endogenous androgen receptor, estrogen receptor alpha and Src. In addition, E2 stimulated the proliferation of EPN cells, suggesting that the formation of the ternary complex and the consequent activation of ERKs are implicated in the mechanism regulating proliferation of epithelial prostate cells.

journal_name

Int J Oncol

authors

Chieffi P,Kisslinger A,Sinisi AA,Abbondanza C,Tramontano D

keywords:

subject

Has Abstract

pub_date

2003-09-01 00:00:00

pages

797-801

issue

3

eissn

1019-6439

issn

1791-2423

journal_volume

23

pub_type

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