First Author | de Kouchkovsky D | Year | 2013 |
Journal | J Immunol | Volume | 191 |
Issue | 4 | Pages | 1594-605 |
PubMed ID | 23858035 | Mgi Jnum | J:205831 |
Mgi Id | MGI:5546498 | Doi | 10.4049/jimmunol.1203567 |
Citation | de Kouchkovsky D, et al. (2013) microRNA-17-92 regulates IL-10 production by regulatory T cells and control of experimental autoimmune encephalomyelitis. J Immunol 191(4):1594-605 |
abstractText | microRNAs (miRNA) are essential for regulatory T cell (Treg) function but little is known about the functional relevance of individual miRNA loci. We identified the miR-17-92 cluster as CD28 costimulation dependent, suggesting that it may be key for Treg development and function. Although overall immune homeostasis was maintained in mice with miR-17-92-deficient Tregs, expression of the miR-17-92 miRNA cluster was critical for Treg accumulation and function during an acute organ-specific autoimmune disease in vivo. Treg-specific loss of miR-17-92 expression resulted in exacerbated experimental autoimmune encephalitis and failure to establish clinical remission. Using peptide-MHC tetramers, we demonstrate that the miR-17-92 cluster was specifically required for the accumulation of activated Ag-specific Treg and for differentiation into IL-10-producing effector Treg. |