Research Project
Grant-in-Aid for Scientific Research (B)
Differentiation of naive CD4 T cells into Th2 cells is accompanied by chromatin remodeling including hyperacetylation of histones H3 and H4 in the nucleosomes associated with the IL-4,IL-13 and IL-5 genes. A conserved GATA3 response element (CGRE) containing four GATA consensus sequences was identified 1.6 kbp upstream of the IL-13 gene, corresponding with the 5' border of the Th2-specific histone hyperacetylation region. The CGRE was shown to bind to GATA3, histone acetyl transferase complexes including CBP/p300, and RNA polymerase II. Thus, the CGRE may play a crucial role for GATA3-mediated targeting and downstream spreading of core histone hyperacetylation within the IL-13 and IL-4 gene loci. As for the IL-5 gene locus, CD28-costimulation selectively enhanced histone hyperacetylation through NF-kB activation and subsequent upregulation of GATA3. Chromatin remodeling of type 2 cytokine gene loci occurs also in developing CD8 Tc2 T cells. IL-4 production and histone hyperacetylation in IL-4-associated nucleosomes in developing Tc2 cells were significantly lower than those of Th2 cells, however, cytokine production and histone hyperacetylation of IL-5 and IL-13 genes were equivalent. Developing Tc2 cells expressed lower GATA3 levels and dramatically increased levels of repressor of GATA (ROG). A ROG response element in the IL-13 gene exon 4 displayed Tc2-specific bin4ing of ROG,HDAC1 and HDAC2, and exhibited repression of IL-4 gene activation. Thus, ROG may confer CD8 T cell-specific repression of histone hyperacetylation and activation of the IL-4 gene locus.
All 2005 2004 2003 2002 Other
All Journal Article (63 results) Publications (13 results)
J.Exp.Med. 201
Pages: 397-408
J.Exp.Med. 199
Pages: 137-143
J.Biol., Chem. 279
Pages: 1676-1683
Proc.Natl.Acad.Sci.USA 101
Pages: 6599-6604
J.Biol.Chem. 279
Pages: 23123-23133
Pages: 26983-26990
Blood 104
Pages: 781-783
IJ.Biol.Chem. 279
Pages: 39454-39464
Pages: 2051-2059
Immunity 21
Pages: 539-550
J.Immunol. 173
Pages: 4967-4975
J.Clin.Invest. 111
Pages: 109-119
J.Immunol. 170
Pages: 775-780
Nat.Med. 9
Pages: 582-588
Pages: 1309-1318
J.Allergy Clin.Immunol. 111
Pages: 1353-1360
J.Cell Biol. 161
Pages: 417-427
Eur.J.Immunol. 33
Pages: 1478-1487
Immunity 19
Pages: 281-294
Int.Immunol. 8
Pages: 987-992
Ann.Rev.Immunol. 21
Pages: 483-513
Nat.Immunol. 4
Pages: 1164-1165
10014342570
J.Immunol. 168
Pages: 87-94
Blood 99
Pages: 555-560
J.Exp.Med. 195
Pages: 617-624
J.Immunol. 169
Pages: 2134-2140
Int.Immunol. 14
Pages: 943-951
J.Biol.Chem. 277
Pages: 42399-42408
Int.J.Cancer. 102
Pages: 159-165
Pages: 4723-4731
10013884085
Int.J.Cancer 102