Activation of liver and kidney glucocorticoid-receptor complexes occurs in vivo.
Activation of liver and kidney glucocorticoid-receptor complexes occurs in vivo.
复制标题
肝脏和肾脏糖皮质激素受体复合物的激活发生在体内。
DOI:
10.1016/0003-9861(80)90440-3
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发表时间:
1980
影响因子:
3.9
通讯作者:
Litwack,G
中科院分区:
文献类型:
--
作者:
Marković,RD;Litwack,G
Unactivated and activated forms of glucocorticoid-receptor complexes in cytosols from rat liver and kidney are completely resolved by a rapid ion-exchange technique using DEAE-Sephadex A-50. [3H]Triamcinolone acetonide was injected intraperitoneally and cytosols from these tissues were prepared at different times. In either tissue cytosol, unactivated complexes accounted for 40–50% of radioactivity and activated complexes 30–40% at 5 min, the earliest measurement. Thereafter, until 60 min, a gradual decline in amounts of unactivated complexes occurred to about 10% of radioactivity in either tissue cytosol, while amounts of liver-activated receptor complexes increased to about 50%. The level of corticosteroid binder IB in liver cytosol increased during the experimental period from about 10% of radioactivity to about 40% of cytosol radioactivity. In kidney, binder IB, the major activated form in the cortex, increased from about 15% of cytosol radioactivity to a maximum of 40% and declined at 60 min to 30%. Binder II, derived from the medulla, increased from about 35 to 60% of radioactivity at 60 min. Adding unlabeled triamcinolone acetonide at 100-fold thein vivodose of labeled hormone to the homogenization buffer did not affect these results and indicated that the unactivated steroid-receptor complexes were not formed adventitiously by manipulationsin vitro. These observations, for the first time using the whole animal, indicate that the activation of glucocorticoid receptors enabling them to become DNA or nuclei binding proteins is a physiologically significant process.
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影响因子:
2.9
作者:
J. Goidl;M. Cake;K. Dolan;L. Parchman;G. Litwack
通讯作者:
G. Litwack
影响因子:
2.9
作者:
Douglas N. Ishii;William B. Pratt;Lewis Aronow
通讯作者:
Lewis Aronow
DOI:
10.1111/j.1432-1033.1978.tb12000.x
发表时间:
1978-01-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
CAKE, MH;LITWACK, G
通讯作者:
LITWACK, G
影响因子:
64.8
作者:
A. Munck;R. Foley
通讯作者:
R. Foley
影响因子:
3.9
作者:
L. Parchman;G. Litwack
通讯作者:
G. Litwack