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A recombinant therapeutic agent which is chemically identical to or similar to the endogenous protein cytokine interleukin 1 (IL-1)-beta. Produced by monocytes and activated macrophages, endogenous mature IL-1 is generated through proteolytic cleavage by proteases such as IL-1-beta converting enzyme (ICE). This agent promotes angiogenesis, fibroblast proliferation, and neutrophil chemotaxis; it also regulates the functions of lymphocytes and epithelial cells and is involved in the 'acute phase response' to infection. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)