Expansion of regulatory T cells via IL-2/anti-IL-2 mAb complexes suppresses experimental myasthenia.
Expansion of regulatory T cells via IL-2/anti-IL-2 mAb complexes suppresses experimental myasthenia.
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DOI:
10.1002/eji.200939792
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发表时间:
2010-06
影响因子:
5.4
通讯作者:
Shi, Fu-Dong
中科院分区:
文献类型:
--
作者:
Liu, Ruolan;Zhou, Qinghua;La Cava, Antonio;Campagnolo, Denise I.;Van Kaer, Luc;Shi, Fu-Dong
Human autoimmune diseases are often characterized by a relative deficiency in CD4+CD25+ regulatory T cells (Treg). We therefore hypothesized that expansion of Treg can ameliorate autoimmune pathology. We tested this hypothesis in an experimental model for autoimmune myasthenia gravis (MG), a B-cell-mediated disease characterized by auto-Ab directed against the acetylcholine receptorwithin neuromuscular junctions. We showed that injection of immune complexes composed of the cytokine IL-2 and anti-IL-2 mAb (JES6-1A12) induced an effective and sustained expansion of Treg,via peripheral proliferation of CD4+CD25+Foxp3+ cells and peripheral conversion of CD4+CD25−Foxp3− cells. The expanded Treg potently suppressed autoreactive T- and B-cell responses to acetylcholine receptor and attenuated themuscular weakness that is characteristic ofMG. Thus, IL-2/anti-IL-2 mAb complexes can expand functional Treg in vivo, providing a potential clinical application of this modality for treatment of MG and other autoimmune disorders.
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