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| Content Provider | PubMed Central |
|---|---|
| Author | Kwon, Ho-keun Lee, Choong-gu So, Jae-seon Chae, Chang-suk Hwang, Ji-sun Sahoo, Anupama Nam, Jong Hee Rhee, Joon Haeng Hwang, Ki-chul Im, Sin-hyeog |
| Abstract | The beneficial effects of probiotics have been described in many diseases, but the mechanism by which they modulate the immune system is poorly understood. In this study, we identified a mixture of probiotics that up-regulates CD4+Foxp3+ regulatory T cells (Tregs). Administration of the probiotics mixture induced both T-cell and B-cell hyporesponsiveness and down-regulated T helper (Th) 1, Th2, and Th17 cytokines without apoptosis induction. It also induced generation of CD4+Foxp3+ Tregs from the CD4+CD25− population and increased the suppressor activity of naturally occurring CD4+CD25+ Tregs. Conversion of T cells into Foxp3+ Tregs is directly mediated by regulatory dendritic cells (rDCs) that express high levels of IL-10, TGF-β, COX-2, and indoleamine 2,3-dioxygenase. Administration of probiotics had therapeutical effects in experimental inflammatory bowel disease, atopic dermatitis, and rheumatoid arthritis. The therapeutical effect of the probiotics is associated with enrichment of CD4+Foxp3+ Tregs in the inflamed regions. Collectively, the administration of probiotics that enhance the generation of rDCs and Tregs represents an applicable treatment of inflammatory immune disorders. |
| Related Links | http://dx.doi.org/10.1073/pnas.0904055107 |
| Ending Page | 2164 |
| Page Count | 6 |
| Starting Page | 2159 |
| File Format | |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 5 |
| Volume Number | 107 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2010-02-02 |
| Access Restriction | Open |
| Rights Holder | National Academy of Sciences |
| Subject Keyword | General Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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