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The Interleukin-1 family (IL-1 family) is a group of 11 cytokines, which plays a central role in the regulation of immune and inflammatory responses to infections or sterile insults. In 1985 two distinct, but distantly related complementary DNAs encoding proteins sharing human IL-1 activity were reported to be isolated from a macrophage cDNA library, thus defining two individual members of the IL-1 family – IL-1α and IL-1β.
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IL-1 Family The Interleukin-1 family (IL-1 family) is a group of 11 cytokines, which plays a central role in the regulation of immune and inflammatory responses to infections or sterile insults. In 1985 two distinct, but distantly related complementary DNAs encoding proteins sharing human IL-1 activity were reported to be isolated from a macrophage cDNA library, thus defining two individual members of the IL-1 family – IL-1α and IL-1β. Interleukin 1 alpha (IL-1α) also known as hematopoietin 1 is a cytokine of the interleukin 1 family that in humans is encoded by the IL1A gene. In general, Interleukin 1 is responsible for the production of inflammation, as well as the promotion of fever and sepsis. IL-1α inhibitors are being developed to interrupt those processes and treat diseases. IL-1α is produced mainly by activated macrophages, as well as neutrophils, epithelial cells, and endothelial cells. It possesses metabolic, physiological, haematopoietic activities, and plays one of the central roles in the regulation of the immune responses. It binds to the interleukin-1 receptor. It is on the pathway that activates tumor necrosis factor-alpha. IL-1α is a “dual-function cytokine”, which means it plays a role in the nucleus by affecting transcription, apart from its extracellular receptor-mediated effects as a classical cytokine. https://www.creative-diagnostics.com/il-1-family.htm