Source:http://linkedlifedata.com/resource/umls/id/C1327415
GO: The regulated release of interleukin-1 from a cell or group of cells. Interleukin 1 is produced mainly by activated macrophages; it stimulates thymocyte proliferation by inducing interleukin 2 release and it is involved in the inflammatory response. [GOC:ai, ISBN:0198506732]