Progesterone binding to mineralocorticoid receptors: in vitro and in vivo studies.
Progesterone binding to mineralocorticoid receptors: in vitro and in vivo studies.
复制标题
黄体酮与盐皮质激素受体的结合:体外和体内研究。
DOI:
10.1152/ajpendo.1996.270.4.e601
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
J. Funder
中科院分区:
文献类型:
--
作者:
K. Myles;J. Funder
In previous studies using expressed recombinant human mineralocorticoid receptors (MR), progesterone was reported to have widely divergent affinity, from approximately 10 nM to < 10 pM. In the present studies, cytosol preparations of colon or hippocampus were incubated with [3H]aldosterone or [3H]progesterone, alone or with excess RU-486, and the ability of each steroid to compete for MR was determined. In guinea pigs, progesterone has equivalent affinity to aldosterone for MR in vitro, and in rats three times of that aldosterone, with no differences between tissues. In vivo, in both epithelial (kidney, colon) and nonepithelial tissues (heart, hippocampus), progesterone was 10- to 100-fold less potent a competitor than aldosterone for MR, both in the absence of transcortin (8-day-old rats) and in adult mice. Bolus injection of [3H]progesterone was not specifically bound in any of the four tissues. Whether progesterone at steady state may bid for MR occupancy under conditions of high circulating free levels (in utero, luteal phase, pregnancy), presumably to act as an antagonist to cortisol/corticosterone in unprotected nonepithelial receptors, thus remains to be determined.
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DOI:
10.1210/endo.136.6.7750480
发表时间:
1995
期刊:
Endocrinology.
影响因子:
--
作者:
Naray-Fejes-Toth,A;Fejes-Toth,G
通讯作者:
Fejes-Toth,G
DOI:
10.1016/s0021-9258(18)47142-6
发表时间:
1994-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
A. K. Agarwal;T. Mune;T. Mune;C. Monder;P. White
通讯作者:
A. K. Agarwal;T. Mune;T. Mune;C. Monder;P. White
DOI:
10.1210/endo.136.9.7649078
发表时间:
1995
期刊:
Endocrinology.
影响因子:
--
作者:
Zhou,MY;Gomez-Sanchez,EP;Cox,DL;Cosby,D;Gomez-Sanchez,CE
通讯作者:
Gomez-Sanchez,CE
影响因子:
2.9
作者:
Munoz, Rodrigo;Carvajal, Cristian;Fardella, Carlos
通讯作者:
Fardella, Carlos