IL1B (Interleukin 1 Beta): IL1B is a crucial cytokine involved in the inflammatory response and a broad spectrum of immune functions. It activates and attracts immune cells to sites of infection or injury and contributes to the onset of fever. Dysregulation of IL1B is associated with chronic inflammatory and autoimmune diseases such as rheumatoid arthritis, gout, and sepsis. As a potent mediator of inflammation, IL1B is a target for a variety of anti-inflammatory therapies.