期刊
JOURNAL OF IMMUNOLOGY
卷 200, 期 1, 页码 82-91出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.1700559
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资金
- National Institutes of Health [K08 AI101008, R37 GM053256, AI105343, AI112521, AI082630, AI115712]
T cell differentiation requires appropriate regulation of DNA methylation. In this article, we demonstrate that the methylcytosine dioxygenase ten-eleven translocation (TET)(2) regulates CD8(+) T cell differentiation. In a murine model of acute viral infection, TET2 loss promotes early acquisition of a memory CD8(+) T cell fate in a cell-intrinsic manner without disrupting Ag-driven cell expansion or effector function. Upon secondary recall, TET2-deficientmemory CD8(+) T cells demonstrate superior pathogen control. Genome-wide methylation analysis identified a number of differentially methylated regions in TET2-deficient versus wildtype CD8(+) T cells. These differentially methylated regions did not occur at the loci of differentially expressed memory markers; rather, several hypermethylated regions were identified in known transcriptional regulators of CD8(+) T cell memory fate. Together, these data demonstrate that TET2 is an important regulator of CD8(+) T cell fate decisions.
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