期刊
JOURNAL OF REPRODUCTIVE IMMUNOLOGY
卷 126, 期 -, 页码 23-31出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jri.2018.02.001
关键词
Autoimmunity; Thyroiditis; Oestradiol; Th1; Th17
资金
- National Nature Science Foundation of China [30972740, 81273296]
- Distinguished Professorship at the Educational Department of Liaoning Province [[2014]187]
- Natural Science Foundation of Liaoning Province [2015020526]
Previous studies have reported a preponderance of autoimmune thyroiditis (AIT) in females, but the detailed mechanisms have not been elucidated. In this study, we explored the effects of oestrogen on experimental AIT (EAT) and its potential mechanisms in an ovariectomised mouse model through the supplementation of high (equivalent to the level during pregnancy) or low (equivalent to the level at the oestrus stage) doses of oestradiol (E2). We found that EAT incidence, the intrathyroidal inflammatory score, serum anti-thyroglobulin IgG2b levels, splenic mRNA expression of Th1 - and Th17 specific transcription factors and typical cytokines and the proportion of IL-12-producing dendritic cells were significantly increased in EAT mice treated with low-dose E2 compared with those in the control group. However, they were not changed when administered with high-dose E2. These findings indicate that low physiological levels of E2 can stimulate the occurrence and development of EAT through the up-regulation of Th1/Th17 responses.
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