| Regulatory T Cells in the Human Immune System. |
| Yong Min Kim |
| Department of Otorhinolaryngology-Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea. entkym@cnu.ac.kr |
| 인간면역체계에서 조절 T세포 |
| 김용민 |
| 충남대학교 의학전문대학원 이비인후과학교실 |
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| ABSTRACT |
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Regulatory T (TReg) cells are essential for maintaining peripheral tolerance, preventing autoimmune diseases and limiting chronic inflammatory diseases. However, they also limit beneficial responses by suppressing sterilizing immunity and limiting antitumor immunity. TReg cells characterized by expression of the transcription factor Foxp3 play a key role in immune homeostasis. Rather than a monomorphic population strictly determined by Foxp3 as a 'master regulator', the emerging view is one of TReg cells as a population with many levels of complexity. Distinct subphenotypes of Foxp3+ TReg cells are found in different anatomical locations. This review will focus on these novel aspects of TReg cell diversity, and discuss recent findings regarding human TReg cells, including the ontogeny and development of TReg cell subsets that have naive or memory phenotypes, the unique mechanisms of suppression mediated by TReg cell subsets and factors that regulate TReg cell lineage commitment. We also will discuss future studies that are needed for the successful therapeutic use of human TReg cells. |
| Keywords:
FoxP3ㆍRegulatory T cellㆍPeripheral toleranceㆍAutoimmune disease |
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