Interleukin-1 receptor antagonist IL-1RA, an endogenous inhibitor of interleukin-1 mainly produced by monocytes/macrophages. It can bind to type I and TYPE II IL-1R without activating signal transduction, so as to competitively inhibit the effects produced by il-1 binding to IL-1R, thereby blocking the IL-1-mediated inflammatory response and reducing tissue damage caused by immune response, infection and inflammatory response. 仅供实验室使用。