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Fig. 1 | Inflammation and Regeneration

Fig. 1

From: The role of interleukin-1 in general pathology

Fig. 1

Interleukin-1 receptors and inhibitors of IL-1 signaling. a IL-1R1 interacts with both IL-1α and IL-1β and promotes signal transduction, together with its co-receptor IL-1R3 (IL-1RAcP). IL-1Ra is a protein that binds to IL-1R1 but not IL-1R3, and it is as an inhibitor of IL-1 signaling. IL-1R2 is a decoy receptor because it lacks a cytoplasmic segment. b Anakinra is a recombinant form of intrinsic human IL-1Ra. It works as an antagonist of IL-1R1, and it is able to inhibit both IL-1α and IL-1β. c Rilonacept is a recombinant fusion protein including the extracellular protein of human IL-1R1 and IL-1R3 fused with the Fc portion of human IgG1. It binds to both IL-1α and IL-1β with high affinity and has a long-term inhibitory effect. d Canakinumab and MABp1 are monoclonal antibodies against IL-1β and IL-1α, respectively. They bind to and neutralize their targets specifically

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