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GPR30, but not estrogen receptor-alpha, is crucial in the treatment of experimental autoimmune encephalomyelitis by oral ethinyl estradiol.
BMC Immunology ( IF 3 ) Pub Date : 2010-04-21 , DOI: 10.1186/1471-2172-11-20
Melissa A Yates 1 , Yuexin Li , Peter J Chlebeck , Halina Offner
Affiliation  

BACKGROUND Remission of multiple sclerosis during periods of high ovarian hormone secretion (such as pregnancy) has led to a great deal of interest in the potential for estrogens to treat autoimmune disease. Previous work has established that 17beta-estradiol can inhibit onset of experimental autoimmune encephalomyelitis (EAE), while ethinyl estradiol (EE) can reduce the severity of established disease. In the current study, the influence of estrogen receptor-alpha (ERalpha) and the G-protein coupled estrogen receptor (GPR30 or GPER) on EE's ability to treat EAE was explored. RESULTS EE reduced disease severity in wild-type and ERalpha knockout (ERKO) mice, but did not alter disease in the GPR30KO group. Production of anti-inflammatory IL-10 increased in EE-ERKO mice (which showed reduced disease) but not in EE-GPR30KO mice (who did not have improved disease). CONCLUSIONS Differential production of IL-10 following EE treatment in ERKO and GPR30KO animals may be responsible for the distinctly different effects on disease severity. Increased IL-10 in ERKO-EE compared to ERKO-Controls is likely to be an important factor in reducing established disease. The inability of EE to reduce disease in GPR30KO mice indicates an important but still undefined role for GPR30 in regulating immune reactivity.

中文翻译:

GPR30,而不是雌激素受体-α,对口服乙炔雌二醇治疗实验性自身免疫性脑脊髓炎至关重要。

背景技术在高卵巢激素分泌期间(例如怀孕)缓解多发性硬化引起了人们对雌激素治疗自身免疫性疾病潜力的极大兴趣。以前的工作已经确定,17β-雌二醇可以抑制实验性自身免疫性脑脊髓炎 (EAE) 的发作,而乙炔雌二醇 (EE) 可以降低已建立疾病的严重程度。在目前的研究中,探讨了雌激素受体-α (ERalpha) 和 G 蛋白偶联雌激素受体 (GPR30 或 GPER) 对 EE 治疗 EAE 能力的影响。结果 EE 降低了野生型和 ERalpha 基因敲除 (ERKO) 小鼠的疾病严重程度,但并未改变 GPR30KO 组的疾病。EE-ERKO 小鼠(疾病减轻)中抗炎 IL-10 的产生增加,但 EE-GPR30KO 小鼠(疾病未改善)中没有增加。结论 ERKO 和 GPR30KO 动物 EE 治疗后 IL-10 的不同产生可能是对疾病严重程度产生明显不同影响的原因。与 ERKO-Controls 相比,ERKO-EE 中增加的 IL-10 可能是减少既定疾病的重要因素。EE 无法减少 GPR30KO 小鼠的疾病,这表明 GPR30 在调节免疫反应性方面具有重要但仍不确定的作用。与 ERKO-Controls 相比,ERKO-EE 中增加的 IL-10 可能是减少既定疾病的重要因素。EE 无法减少 GPR30KO 小鼠的疾病,这表明 GPR30 在调节免疫反应性方面具有重要但仍不确定的作用。与 ERKO-Controls 相比,ERKO-EE 中增加的 IL-10 可能是减少既定疾病的重要因素。EE 无法减少 GPR30KO 小鼠的疾病,这表明 GPR30 在调节免疫反应性方面具有重要但仍不确定的作用。
更新日期:2010-04-19
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