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Article Abstract
FOXP3-expressing regulatory T (T) cells play a pivotal role in maintaining immune homeostasis and tolerance, with their activation being crucial for preventing various inflammatory responses. However, the mechanisms governing the epigenetic program in T cells during their dynamic activation remain unclear. In this study, we demonstrate that CXXC-finger protein 1 (CXXC1) interacts with the transcription factor FOXP3 and facilitates the regulation of target genes by modulating H3K4me3 deposition. deletion in T cells leads to severe inflammatory disease and spontaneous T cell activation, with impaired immunosuppressive function. As a transcriptional regulator, CXXC1 promotes the expression of key T functional markers under steady-state conditions, which are essential for the maintenance of T cell homeostasis and their suppressive functions. Epigenetically, CXXC1 binds to the genomic regulatory regions of T program genes in mouse T cells, overlapping with FOXP3-binding sites. Given its critical role in T cell homeostasis, CXXC1 presents itself as a promising therapeutic target for autoimmune diseases.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11970909 | PMC |
| http://dx.doi.org/10.7554/eLife.103417 | DOI Listing |
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