Revealing a steroid receptor ligand as a unique PPARγ agonist.
Revealing a steroid receptor ligand as a unique PPARγ agonist.
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作者:
Peroxisome proliferator activated receptor gamma (PPARγ) regulates metabolic homeostasis and is a molecular target for antidiabetic drugs. We report here the identification of a steroid receptor ligand, RU-486, as an unexpected PPARγ agonist, thereby uncovering a novel signaling route for this steroid drug. Similar to rosiglitazone, RU-486 modulates the expression key PPARγ target genes and promotes adipocyte differentiation but with lower adipogenic activity. Structural and functional studies of receptor-ligand interactions reveal the molecular basis for a unique binding mode for RU-486 in the PPARγ ligand binding pocket with distinctive properties and epitopes, providing the molecular mechanisms for the discrimination of RU-486 from thiazolidinediones (TZDs) drugs. Our findings together indicate that steroid compounds may represent an alternative approach for designing non-thiazolidinedione PPARγ ligands in the treatment of insulin resistance.
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DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1073/pnas.81.17.5468
发表时间:
1984-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
BERNLOHR, DA;ANGUS, CW;KELLY, TJ
通讯作者:
KELLY, TJ
影响因子:
15.9
作者:
Chao, L;Marcus-Samuels, B;Reitman, ML
通讯作者:
Reitman, ML
影响因子:
5.8
作者:
LAUE, L;CHROUSOS, GP;SCHAISON, G
通讯作者:
SCHAISON, G
影响因子:
64.8
作者:
Chandra, Vikas;Huang, Pengxiang;Hamuro, Yoshitomo;Raghuram, Srilatha;Wang, Yongjun;Burris, Thomas P.;Rastinejad, Fraydoon
通讯作者:
Rastinejad, Fraydoon