Recombinant Human Interleukin-8 (IL-8)

Pricing & Details

Product. No.I-576
Alternate Names
Interleukin-8, CXCL8, MDNCE, Neutrophil Activating Factor (NAF), NAP-1 Fractalkine Mucin-Like Stalk, 3-10C, AMCF-I, GCP-1, GCP1, K60, LECT, LUCT, LYNAP, MDNCF, MONAP, AP1, SCYB8, TSG-1, B-ENAP
Expression Host
E. coli
Reactivity Species
Prod No.
Add to cart
I-576-10 µg
10 µg
In stock
Min: 1
Step: 1
I-576-50 µg
50 µg
In stock
Min: 1
Step: 1


Interleukin-8 (IL-8) is a chemokine produced by macrophages and other cell types such as epithelial cells. It is also synthesized by endothelial cells, which store IL-8 in their storage vesicles. IL-8 is one of the major mediators of the inflammatory response. This chemokine is secreted by several cell types. It functions as a chemoattractant, and is also a potent angiogenic factor. Gene of IL-8 is believed to play a role in the pathogenesis of bronchiolitis. While neutrophil granulocytes are the primary target cells of IL-8 there is a relative wide range of cells (endothelial cells, macrophages, mast cells, keratinocytes) responding to this chemokine, too. When first encountering an antigen, the primary cells to encounter it are the macrophages that phagocytose the particle. Upon processing, they release chemokines to signal other immune cells to come in to the site of inflammation. IL-8 is one such chemokine. It serves as a chemical signal that attracts neutrophils at the site of inflammation, and therefore is also known as Neutrophil Chemotactic Factor. Interleukin-8 is often associated with inflammation. As an example, it has been cited as a proinflammatory mediator in psoriasis.1

Protein Details

>97% by SDS-PAGE and analyzed by silver stain.
Endotoxin Level
<0.01 EU/µg as determined by the LAL method
Biological Activity
The biological activity of Human IL-8 was determined by its ability to induce myeloperoxidase release cytochalasin B-treated human neutrophils. The expected ED50=0.15-0.3 µg/ml.
Expression Host
E. coli
Protein Accession No.
Amino Acid Sequence
avlprsak elrcqcikty skpfhpkfik elrviesgph canteiivkl sdgrelcldp kenwvqrvve kflkraens & sak elrcqcikty skpfhpkfik elrviesgph canteiivkl sdgrelcldp kenwvqrvve kflkraens
N-terminal Sequence Analysis
Ala23 & Ser28
State of Matter
Predicted Molecular Mass
The predicted molecular weight of Recombinant Human IL-8 is Mr 8.9 kDa.
This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives.
Storage and Stability
This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.
Country of Origin
Next Day Ambient
NCBI Gene Bank

References & Citations

1. Haraldsen, G. et al. (1998) J Exp Med. 188: 1751
IMPORTANT Use lot specific datasheet for all technical information pertaining to this recombinant protein.
Products are for research use only. Not for use in diagnostic or therapeutic procedures.
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