| 1 | IL-10-Producing Type 1 Regulatory T Cells and Allergy显示文摘As an important subset of regulatory T(Treg) cells,IL-10-producing type 1 regulatory T cells(Tr1) ,have some different features to thymic-derived naturally occurring CD4+CD25+Foxp3+ Treg cells(nTreg cells) . Similar to nTreg cells,Tr1 also play important roles in the control of allergic inflammation in several ways. There is a fine balance between Tr1 and Th2 responses in healthy subjects. Skewing of allergic-specific effctor T cells to a Tr1 phenotype appears to be a critical event in successful allergen-specific immunotherapy and glucocorticoids and β2-agonists treatment. Tr1 suppress Th2 cells and effector cells of allergic inflammation,such as eosinophils,mast cells,basophils,through producing IL-10,and perhaps TGF-β. Understanding of Tr1 may be helpful in developing new strategies for treatment of allergic diseases. | Kui Wu Yutian Bi Kun Sun Changzheng Wang | 2007 | Cellular & Molecular Immunology2007，4，4： | 9 |
| 3 | Changes of phenotype and function of human CD4^(+)CD25^(-) T cells induced by transfection of Foxp3显示文摘The aim of this paper is to explore the effects of transfection of Foxp3 gene on the phenotype and function of naive CD4^(+)T cells.The pMSCV-Foxp3 retroviral vec-tor encoding Foxp3 gene was transduced into the PT67 packaging cell line.Virus-containing supernatant was applied to differentiate CD4^(+)CD25^(-) T cells.The resulting cells were sorted with flow cytometry.The expressions of CD25,CD127,CTLA-4 and the proliferation of trans-fected T cells were examined.The effect of transfected CD4^(+)T cells on the proliferation and cytokine production of CD4^(+)CD25^(-) T cells was examined.Foxp3-gene trans-fected CD4^(+)T cells could express Foxp3 and transfection of Foxp3 gene up-regulated the expressions of CD25 and CTLA-4,but down-regulated CD127 expression.After transfection,the proliferation of CD4^(+)T cells was elimi-nated.Transfected T cells inhibited the proliferation of CD4^(+)CD25^(-) T cells.CD4^(+)CD25^(-) T cells acquired a reg-ulatory phenotype and function after it was transduced with the Foxp3 gene.This suggested a key role of Foxp3 in the generation of CD4^(+)CD25^(+) regulatory T cells. | Kui WU Yutian BI Yaoli WANG Changzheng WANG | 2008 | Frontiers of Medicine2008，2，4： | 0 |
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