Human IL-8/CXCL8 (aa 23-99, Fc Tag) recombinant protein

Human IL-8/CXCL8 (aa 23-99, Fc Tag) recombinant protein

• DataSheet
• Material Safety Data Sheets (MSDS)

Interleukin 8 (IL-8), also known as CXCL8, which is a chemokine with a defining CXC amino acid motif that was initially characterized for its leukocyte chemotactic activity, is now known to possess tumorigenic and proangiogenic properties as well. This chemokine is secreted by a variety of cell types including monocyte/macrophages, T cells, neutrophils, fibroblasts, endothelial cells, and various tumor cell lines in response to inflammatory stimuli (IL1, TNF, LPS, etc). In human gliomas, IL-8 is expressed and secreted at high levels both in vitro and in vivo, and recent experiments suggest it is critical to glial tumor neovascularity and progression. Levels of IL-8 correlate with histologic grade in glial neoplasms, and the most malignant form, glioblastoma, shows the highest expression in pseudopalisading cells around necrosis, suggesting that hypoxia/anoxia may stimulate expression. Interleukin (IL)-8/CXCL8 is a potent neutrophil chemotactic factor. Accumulating evidence has demonstrated that various types of cells can produce a large amount of IL-8/CXCL8 in response to a wide variety of stimuli, including proinflammatory cytokines, microbes and their products, and environmental changes such as hypoxia, reperfusion, and hyperoxia. Numerous observations have established IL-8/CXCL8 as a key mediator in neutrophil-mediated acute inflammation due to its potent actions on neutrophils. However, several lines of evidence indicate that IL-8/CXCL8 has a wide range of actions on various types of cells, including lymphocytes, monocytes, endothelial cells, and fibroblasts, besides neutrophils. The discovery of these biological functions suggests that IL-8/CXCL8 has crucial roles in various pathological conditions such as chronic inflammation and cancer. IL-8 has been associated with tumor angiogenesis, metastasis, and poor prognosis in breast cancer. IL-8 may present a novel therapeutic target for estrogen driven breast carcinogenesis and tumor progression.

C-X-C motif chemokine

P10145

IL8; hCG_16372

Human Cells

A DNA sequence encoding the 77 amino acid endothelial-cell derived form ofthe mature human IL8 (NP_000575.1) (Ala 23-Ser 99) was fused with the Fc region of human IgG1 at the N-terminus.

Human

The recombinant human Fc/IL8 (aa 1-77)chimera is a disulfide-linked homodimeric protein and the IL8 gene encodes the 1-77 amino acids. The reduced monomer consists of 314 amino acids and has a predicted molecular mass of 35.6 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh Fc/IL8 (aa 1-77) monomer is approximately 40 kDa due to glycosylation.

> 95 % as determined by SDS-PAGE