Interleukin 1 alpha (IL1α) is a non-secreted proinflammatory cytokine 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. Both IL1α and IL1β binds to the same receptor and has similar if not identical biological properties. Recombinant rhesus macaque IL1 alpha contains 150 amino acids which is a single nonglycosylated polypeptide. Among various species, the amino acid sequence of mature IL1α is conserved 60% to 70% and human IL1 has been found to be biologically active on murine cell lines.

Interleukin-1 alpha (IL1A) is a nonsecreted pro-inflammatory cytokine produced mainly by activated macrophages, as well as neutrophils, epithelial cells and endothelial cells. It possesses metabolic, physiological and hematopoietic activities, and plays one of the central roles in the regulation of immune responses. Both IL1A and IL1B bind to the same receptor and have similar but not identical biological properties. Recombinant rat IL1A contains 150 amino acids, which is a single nonglycosylated polypeptide.

Interleukin-1 alpha (IL1A) is a nonsecreted pro-inflammatory cytokine produced in a variety of cells including monocytes, tissue macrophages, keratinocytes and other epithelial cells. Both IL1A and IL1B bind to the same receptor and have similar biological properties. These cytokines have a broad range of activities including stimulation of thymocyte proliferation by inducing IL2 release, B-cell maturation and proliferation, mitogenic FGF-like activity and the ability to stimulate the release of prostaglandin and collagenase from synovial cells. However, whereas IL1B is a secreted cytokine, IL1A is predominantly a cell associated cytokine.

Interleukin-1 alpha (IL1A) is a nonsecreted pro-inflammatory cytokine produced mainly by activated macrophages, as well as neutrophils, epithelial cells and endothelial cells. It possesses metabolic, physiological, hematopoietic activities, and plays one of the central roles in the regulation of the immune responses. Both IL1A and IL-1B bind to the same receptor and have similar biological properties. Among various species, the amino acid sequence of mature IL1A is conserved 60% to 70% and human IL1A has been found to be biologically active with murine cell lines.

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