| Budget Amount *help |
¥45,630,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥10,530,000)
Fiscal Year 2009: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2008: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2007: ¥26,390,000 (Direct Cost: ¥20,300,000、Indirect Cost: ¥6,090,000)
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| Research Abstract |
Recently, we had identified a novel cytosolic DNA sensing molecule, DAI (DNA-dependent activator of IRFs). We analyzed the activating mechanism of DAI by cytosolic DNA stimulation and we found a new DNA binding domain and phosphorylation sites in DAI protein. These domain and amino acid residues are turned out to be important for DNA-mediated activation of innate immune responses. To investigate further the role of DAI in innate immune responses in vivo, we generated mice deficient in Dai gene. Dai^<-/-> mice grew normally with normal cellular population in lymphoid organs compared to those of wild-type control mice. We analyzed the role of DAI in innate immune responses and found defects in mRNA induction levels of some antiviral genes in Dai^<-/-> cells.
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