Abstract
Forkhead box P3 (Foxp3) is an important transcription factor that belongs to the forkhead/winged-helix family of transcriptional regulators. Foxp3 has been extensively studied over the past 13 years as a master regulator of transcription in a specific T-cell type, CD4+ regulatory T cells (Treg), both in humans and in mice. Compelling data characterize Foxp3 as critically important and necessary for the development and the differentiation of Treg. It has been considered initially as the only specific marker for Treg. However, recent work has proposed that Foxp3 can be expressed by other types of lymphoid cells or myeloid cells and also by some non-hematopoietic cells such as epithelial cells. It remains controversial about the expression of Foxp3 in cells other than Treg, but understanding the potential expression and function of this master regulator in different cell subsets could have a wide range of implications for immune tolerance and several pathologies including autoimmune disorders and immune responses to cancer.
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Abbreviations
- BM:
-
Bone marrow
- BRCA1:
-
Breast cancer 1, early onset
- CD:
-
Cluster of differentiation
- CTLA4:
-
Cytotoxic T-lymphocyte antigen-4
- DC:
-
Dendritic cells
- DEREG:
-
Depletion of regulatory T cells
- DNA:
-
Deoxyribonucleic acid
- DT:
-
Diphtheria toxin
- EAE:
-
Experimental autoimmune encephalomyelitis
- FOX:
-
Forkhead box
- GITR:
-
Glucocorticoid-induced tumor necrosis factor receptor family related gene
- HAT:
-
Histone/protein acetyltransferases
- HER:
-
Human epidermal growth factor receptor
- IL:
-
Interleukin
- IL2R:
-
Interleukin 2 receptor
- NK:
-
Natural killer
- iNKT:
-
Invariant natural killer T cells
- IPEX:
-
Immune dysregulation, polyendocrinopathy, entheropathy, X-linked
- IRF:
-
Interferon regulatory factor
- PBMC:
-
Peripheral blood mononuclear cells
- Rag:
-
Recombination-activating genes
- RNA:
-
Ribonucleic acid
- ROR:
-
Retinoid-related orphan receptor
- SATB:
-
Special AT-rich sequence binding protein
- SKP:
-
S-phase kinase-associated protein
- TGF-β:
-
Transforming growth factor beta
- Treg:
-
T-regulatory cells
- WT:
-
Wild type
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This work was supported by funding from the National Health and Medical Research Council of Australia and the Cancer Council of Victoria.
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The authors declare that they have no conflicts of interest.
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Devaud, C., Darcy, P.K. & Kershaw, M.H. Foxp3 expression in T regulatory cells and other cell lineages. Cancer Immunol Immunother 63, 869–876 (2014). https://doi.org/10.1007/s00262-014-1581-4
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DOI: https://doi.org/10.1007/s00262-014-1581-4