PMID- 18779345 OWN - NLM STAT- MEDLINE DCOM- 20081014 LR - 20220129 IS - 1540-9538 (Electronic) IS - 0022-1007 (Print) IS - 0022-1007 (Linking) VI - 205 IP - 10 DP - 2008 Sep 29 TI - Early growth response gene 2 (Egr-2) controls the self-tolerance of T cells and prevents the development of lupuslike autoimmune disease. PG - 2295-307 LID - 10.1084/jem.20080187 [doi] AB - Maintaining tolerance of T cells to self-antigens is essential to avoid autoimmune disease. How self-reactive T cells are kept functionally inactive is, however, unknown. In this study, we show that early growth response gene 2 (Egr-2), a zinc-finger transcription factor, is expressed in CD44(high) T cells and controls their proliferation and activation. In the absence of Egr-2, CD44(high), but not CD44(low) T cells, are hyperreactive and hyperproliferative in vivo. The accumulation of activated CD4(+)CD44(high) T cells leads to the development of a late onset lupuslike autoimmune disease characterized by the accumulation of interferon (IFN)-gamma and interleukin (IL)-17-producing CD4(+) T cells, loss of tolerance to nuclear antigens, massive infiltration of T cells into multiple organs and glomerulonephritis. We found that the expression of cyclin-dependent kinase inhibitor p21cip1 was impaired in Egr-2-deficient T cells, whereas the expression of IFN-gamma and IL-17 in response to T cell receptor ligation was significantly increased, suggesting that Egr-2 activates the expression of genes involved in the negative regulation of T cell proliferation and inflammation. These results demonstrate that Egr-2 is an intrinsic regulator of effector T cells and controls the expansion of self-reactive T cells and development of autoimmune disease. FAU - Zhu, Bo AU - Zhu B AD - Institute of Cell and Molecular Science, Barts and London School of Medicine and Dentistry, University of London, London E1 2AT, England, UK. FAU - Symonds, Alistair L J AU - Symonds AL FAU - Martin, Joanne E AU - Martin JE FAU - Kioussis, Dimitris AU - Kioussis D FAU - Wraith, David C AU - Wraith DC FAU - Li, Suling AU - Li S FAU - Wang, Ping AU - Wang P LA - eng GR - WT_/Wellcome Trust/United Kingdom GR - 074731/WT_/Wellcome Trust/United Kingdom GR - MC_U117512796/MRC_/Medical Research Council/United Kingdom GR - BB_/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080908 PL - United States TA - J Exp Med JT - The Journal of experimental medicine JID - 2985109R RN - 0 (Autoantibodies) RN - 0 (Cdkn1a protein, mouse) RN - 0 (Cyclin-Dependent Kinase Inhibitor p21) RN - 0 (Early Growth Response Protein 2) RN - 0 (Egr2 protein, mouse) RN - 0 (Hyaluronan Receptors) RN - 0 (Interleukin-2) SB - IM MH - Animals MH - Autoantibodies/immunology MH - *Autoimmune Diseases/genetics/immunology/pathology MH - Cell Differentiation MH - Cell Proliferation MH - Cyclin-Dependent Kinase Inhibitor p21/genetics/immunology MH - Early Growth Response Protein 2/genetics/*immunology MH - Hyaluronan Receptors/immunology MH - Interleukin-2/immunology MH - Lymphocyte Activation MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Mice, Transgenic MH - *Self Tolerance/genetics/immunology MH - Skin/pathology MH - Spleen/anatomy & histology/immunology MH - T-Lymphocyte Subsets/immunology/*physiology MH - T-Lymphocytes/immunology/*physiology PMC - PMC2556781 EDAT- 2008/09/10 09:00 MHDA- 2008/10/15 09:00 PMCR- 2009/03/29 CRDT- 2008/09/10 09:00 PHST- 2008/09/10 09:00 [pubmed] PHST- 2008/10/15 09:00 [medline] PHST- 2008/09/10 09:00 [entrez] PHST- 2009/03/29 00:00 [pmc-release] AID - jem.20080187 [pii] AID - 20080187 [pii] AID - 10.1084/jem.20080187 [doi] PST - ppublish SO - J Exp Med. 2008 Sep 29;205(10):2295-307. doi: 10.1084/jem.20080187. Epub 2008 Sep 8.