Restoration of the DNA binding activity of estrogen receptor in MRL-lpr/lpr mice by a polyamine biosynthesis inhibitor.

Restoration of the DNA binding activity of estrogen receptor in MRL-lpr/lpr mice by a polyamine biosynthesis inhibitor.
复制标题

多胺生物合成抑制剂恢复 MRL-lpr/lpr 小鼠雌激素受体 DNA 结合活性。

DOI:
10.1002/art.1780340109
复制
发表时间:
1991
影响因子:
--
通讯作者:
Thomas,TJ
Thomas,TJ
中科院分区:
--
文献类型:
--
作者:
Thomas,T;Gunnia,UB;Seibold,JR;Thomas,TJ

文献摘要

参考文献

被引文献

相似文献

雌激素对人类系统性红斑狼疮和鼠系统性红斑狼疮发病频率和严重程度的影响的不同数据关联雌激素的基本作用机制涉及激素与其受体蛋白的相互作用,然后将其转化为DNA结合形式。我们测量了正常BALB/c小鼠、狼疮易感MRL-lpr/lpr小鼠和用1%二氟甲基鸟氨酸(DFMO)处理的MRL-lpr/lpr小鼠的子宫雌激素受体浓度及其DNA结合。3组20周龄小鼠的子宫雌激素受体水平无显著差异。相比之下,BALB/c小鼠的DNA结合活性(平均值± SD 775 ± 100 fmoles/mg DNA)显著高于未处理的MRL‐lpr/lpr小鼠(80 ± 16 fmoles/mg DNA)(P< 0.001)。在MRL‐lpr/lpr小鼠中,1% DFMO处理与子宫雌激素受体DNA结合率(1,100 ± 218 fmoles/mg DNA)增加相关(P< 0.001)。与BALB/c小鼠相比,未处理的MRL‐lpr/lpr小鼠子宫组织中的多胺水平高2-6倍,并且DFMO处理显著降低。我们的研究结果将子宫多胺的产生与MRL‐lpr/lpr小鼠的雌激素受体功能障碍联系起来。通过DFMO对鸟氨酸脱羧酶的不可逆抑制来降低多胺水平,恢复雌激素受体功能。
Diverse data link estrogen influences to both the frequency and severity of systemic lupus erythematosus in humans and to murine lupus. A fundamental mechanism of action of estrogen involves the interaction of the hormone with its receptor protein, which is then transformed into the DNA binding form. We measured the concentration of uterine estrogen receptor and its DNA binding in normal BALB/c mice, lupus‐prone MRL‐lpr/lprmice, and MRL‐lpr/lprmice that had been treated with 1% difluoromethylornithine (DFMO). Uterine estrogen receptor levels in 20‐week‐old mice from the 3 groups were not significantly different. In contrast, DNA binding activity was significantly higher in BALB/c mice (mean ± SD 775 ± 100 fmoles/mg of DNA) than in untreated MRL‐lpr/lprmice (80 ± 16 fmoles/mg of DNA) (P< 0.001). Treatment with 1% DFMO was associated with an increase in uterine estrogen receptor DNA binding (1,100 ± 218 fmoles/mg of DNA) in MRL‐lpr/lprmice (P< 0.001). Polyamine levels were 2–6‐fold higher in the uterine tissues of untreated MRL‐lpr/lprmice compared with the BALB/c mice and were significantly reduced by DFMO treatment. Our results link uterine polyamine production to a dysfunction of the estrogen receptors in MRL‐lpr/lprmice. Reduction of the polyamine level by the irreversible inhibition of ornithine decarboxylase with DFMO restores estrogen receptor function.
DOI: 10.1002/art.1780221106
发表时间: 1979-01-01
影响因子: --
作者:
LAHITA, RG;BRADLOW, HL;FISHMAN, J
通讯作者: FISHMAN, J
类固醇激素在真核细胞中的作用。
DOI: 10.1172/jci111425
发表时间: 1984
期刊: The Journal of clinical investigation
影响因子: --
作者:
B. O’Malley
通讯作者: B. O’Malley
类固醇激素受体的激活、转化和亚基结构。
DOI: 10.1210/edrv-3-2-141
发表时间: 1982
期刊: Endocrine reviews
影响因子: 20.3
作者:
W. Grody;W. Schrader;B. O’Malley
通讯作者: B. O’Malley
MRL-lpr/lpr 小鼠淋巴增殖的研究。
DOI: 10.4049/jimmunol.133.4.1955
发表时间: 1984
影响因子: 4.4
作者:
P. Smathers;T. Santoro;T. Chused;J. P. Reeves;A. Steinberg
通讯作者: A. Steinberg
短期施用性激素对正常和自身免疫小鼠的影响。
DOI: 10.4049/jimmunol.134.1.204
发表时间: 1985
影响因子: 4.4
作者:
S. Ahmed;M. Dauphinée;N. Talal
通讯作者: N. Talal