Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Outline of Final Research Achievements |
Mice lacking for IL-1 receptor antagonist (Ra), an endogenous inhibitor, spontaneously develop rheumatoid arthritis and psoriasis-like dermatitis. Although it is reported that IL-1Ra consists two isoforms (soluble/s and intracellular/ic) and pre-IL-1α acts as a putative transcriptional factor, their functions remain unknown. In this study, we newly generated s/icIL-1Ra isoform specific deficient mice and pre-IL1α/NLS mutated mice. Analysis of C57BL/6 background s/icIL-1Ra deficient mice indicates that s/icIL-1Ra isoforms act in a mutually complementary manner. BALB/c background sIL-1Ra deficient mice are novel and useful arthritis model with high breeding efficiency.
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