IL1B (Interleukin 1 Beta): IL1B is a key cytokine involved in the inflammatory response and a wide range of immune functions. It activates and recruits immune cells to sites of infection or injury and plays a role in inducing fever. Dysregulation of IL1B is linked to chronic inflammatory and autoimmune conditions such as rheumatoid arthritis, gout, and sepsis. As a powerful mediator of inflammation, IL1B is a target for various anti-inflammatory treatments.