IL-8/CXCL8 Protein, Human, Recombinant (His Tag)

• Background:

  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.

• Synonyms:

  GCP-1 Protein, Human; GCP1 Protein, Human; IL-8 Protein, Human; IL8 Protein, Human; Interleukin-8 Protein, Human; LECT Protein, Human; LUCT Protein, Human; LYNAP Protein, Human; MDNCF Protein, Human; MONAP Protein, Human; NAF Protein, Human; NAP-1 Protein, Human; NAP1 Protein, Human

• Gene Name:

  Chemokine (C-X-C motif) ligand 8

• Expression System:

  Yeast

• Tag:

  C-His

• Field of Research:

  Neuroinflammation

• Endotoxin:

  Please contact us for more information.

• Purity:

  > 95 % as determined by SDS-PAGE.

• Activity:

  Immobilized Human IL-8/CXCL8 (His Tag) (Cat:PH51607Y2) at 2 μg/mL (100 μL/well) can bind Anti-IL-8/CXCL8 Antibody, Mouse Monoclonal (Cat:10098-MM18), the ECis 25-140 ng/mL.

• Form:

  Lyophilized

• Buffer:

  Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

• Function:

  Cytokine Proteins, Growth Factor proteins, Interleukin proteins, Biological Target proteins, Cell Therapy proteins

• Molecular Weight:

  The recombinant human CXCL8 consists of 82 amino acids and predicts a molecular mass of 9.8 kDa.

• Storage Conditions:

  In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.

• Symbol:

  CXCL8

• Species:

  Human

• Protein ID:

  NP_000575.1

• Overview:

  A DNA sequence encoding the human CXCL8 (NP_000575.1) (Ser28-Ser99) was expressed with a polyhistidine tag at the C-terminus.

• AA Sequence:

  Ser28-Ser99

• Protein ID Link:

  https://www.ncbi.nlm.nih.gov/protein/NP_000575.1