IL-33 plays an important role in inflammatory diseases including hypersensitive diseases like asthma, autoimmune diseases like rheumatoid arthritis, cardiovascular diseases like heart failure and neurodegenerative diseases like Alzheimer's disease. Here we reported the generation of an IL-33 transgenic mouse, in which mouse IL-33 full-length cDNA was controlled under the CMV promoter. The transgenic IL-33 was released as a cleaved form with molecular weight of 18kDa in pulmonary, nephritic, cardiac and pancreatic tissues in transgenic mice and the pI of 18kDa peptide was about pH 3-5 on the 2D PAGE which was similar with the activated peptide of IL-33.
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