Dehydroepiandrosterone sulfate augments blood-brain barrier and tight junction protein expression in brain endothelial cells.
Dehydroepiandrosterone sulfate augments blood-brain barrier and tight junction protein expression in brain endothelial cells.
复制标题
硫酸脱氢表雄酮增强血脑屏障和脑内皮细胞紧密连接蛋白的表达
DOI:
10.1016/j.bbamcr.2017.05.006
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Scheiner-Bobis G
中科院分区:
文献类型:
--
作者:
Papadopoulos D;Scheiner-Bobis G
Tight junctions (TJ) between brain endothelial cells are essential for formation and maintenance of the blood-brain barrier (BBB). Although loss of BBB integrity is associated with several neuropathological disorders, treatments that augment or stabilise the BBB are scarce. Here we show that physiological concentrations of dehydroepiandrosterone sulfate (DHEAS) stimulate the expression of the TJ proteins zonula occludens-1 (ZO-1) and claudin-3 in the brain-derived endothelial cell line bEnd.3 and promote TJ formation between neighbouring cells, demonstrated by augmented transendothelial resistance across cell monolayers. Silencing androgen receptor expression by siRNA does not prevent DHEAS-induced stimulation of ZO-1 expression, indicating that conversion of DHEAS into testosterone is not required for its actions. Suppression of Gnα11 expression by siRNA prevents DHEAS actions, pointing towards a G-protein-coupled receptor as being a mediator of the DHEAS effects. These results are consistent with the idea that DHEAS, acting as a hormone in its own right, supports the integrity of the BBB. The current findings might help in developing new strategies for the prevention or treatment of neurological disorders associated with BBB defects.
登录
查看更多内容
影响因子:
5.8
作者:
C. Tannenbaum;E. Barrett;G. Laughlin;R. Platt
通讯作者:
R. Platt
影响因子:
4.9
作者:
A. Vermeulen
通讯作者:
A. Vermeulen
影响因子:
3.4
作者:
Milatz, Susanne;Krug, Susanne M.;Fromm, Michael
通讯作者:
Fromm, Michael
DOI:
--
发表时间:
2005
期刊:
British Journal of Pharmacology (印刷中)
影响因子:
--
作者:
Yoshimune;Kazuaki et al.;Kinoshita K;Mizota K.
通讯作者:
Mizota K.
DOI:
10.1016/j.bbamcr.2013.08.015
发表时间:
2013
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Shihan M;Kirch U;Scheiner-Bobis G
通讯作者:
Scheiner-Bobis G