期刊
CLINICAL IMMUNOLOGY
卷 115, 期 2, 页码 162-172出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2005.01.006
关键词
collagen-induced arthritis; ethinyl estradiol; oral therapy; cytokines; regulation of T cells and antibodies
类别
资金
- NIAID NIH HHS [AI 42376] Funding Source: Medline
- NINDS NIH HHS [NS 23444, NS 23221] Funding Source: Medline
We previously demonstrated the therapeutic effects of ethinyl estradiol (EE), an orally active estrogen and a component of birth control pills, in encephalitogenic autoimmune encephalomyelitis (EAE). In this study, we report the effectiveness of EE in treating collagen-induced arthritis (CIA) induced with bovine type II collagen (bCII) in DBA/1 LacJ mice, a CIA susceptible strain. Both low and high doses of EE notably suppressed clinical and histological signs of CIA in a dose-dependent manner compared to vehicle-treated controls. Oral treatment with EE decreased proliferation and secretion of pro-inflammatory factors, TNF-alpha IFN-gamma, MCP-1 and IL-6 by bCII peptide-specific T cells, production of bCII-specific IgG2a antibodies, and mRNA for cytokines, chemokines and chemokine receptors in joint tissue. This is the first report demonstrating effective treatment of joint inflammation and clinical signs of CIA with orally administered ethinyl estradiol, thus supporting its possible clinical use for treating rheumatoid arthritis in humans. (c) 2005 Elsevier Inc. All rights reserved.
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