Revision 5
Cell Signaling Technology

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Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
MW (kDa):

9

UniProt ID:

#P10145

Entrez-Gene Id:

3576

Background

The prototypical CXC chemokine, IL-8, is best known for effects on neutrophils, specifically its ability to act as a chemoattractant and activate degranulation and respiratory burst (1,2,3).
IL-8 is produced by a number of cell types, including monocytes, T cells, neutrophils, fibroblasts, endothelial cells, and others (1). In addition to its effects on neutrophils, IL-8 promotes angiogenesis, inhibits endothelial cell apoptosis, and promotes the proliferation of melanoma cells in an autocrine fashion (1). As a result, IL-8 may be a contributing factor to the development of certain cancers (1,2). There are two distinct receptors for IL-8, CXCR1 and CXCR2; both are G protein-coupled receptors (1). Ligand binding induces Ca2+ mobilization and activates the PI3K, PKC, Rho, and Rac pathways (1,3).

  1. Payne, A.S. and Cornelius, L.A. (2002) J Invest Dermatol 118, 915-22.
  2. Brat, D.J. et al. (2005) Neuro Oncol 7, 122-33.
  3. Mukaida, N. (2003) Am J Physiol Lung Cell Mol Physiol 284, L566-77.

Endotoxin

Less than or equal to 1 EU / 1 μg hIL-8.

Purity

A greater than 95% purity was determined by SDS-PAGE.

Source / Purification

Recombinant human IL-8 was expressed in E. coli and is supplied in a lyophilized form.

Background

The prototypical CXC chemokine, IL-8, is best known for effects on neutrophils, specifically its ability to act as a chemoattractant and activate degranulation and respiratory burst (1,2,3).
IL-8 is produced by a number of cell types, including monocytes, T cells, neutrophils, fibroblasts, endothelial cells, and others (1). In addition to its effects on neutrophils, IL-8 promotes angiogenesis, inhibits endothelial cell apoptosis, and promotes the proliferation of melanoma cells in an autocrine fashion (1). As a result, IL-8 may be a contributing factor to the development of certain cancers (1,2). There are two distinct receptors for IL-8, CXCR1 and CXCR2; both are G protein-coupled receptors (1). Ligand binding induces Ca2+ mobilization and activates the PI3K, PKC, Rho, and Rac pathways (1,3).

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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    Revision 5
    #94853

    Human Interleukin-8 (hIL-8) Recombinant Protein

    Human Interleukin-8 (hIL-8) Recombinant Protein: Image 1 Expand Image
    对 1.5 µg 还原 (+) 和非还原 (-) 重组 hIL-8 进行 SDS-PAGE 并用考马斯蓝染色过夜来测定重组 hIL-8 的纯度。
    Human Interleukin-8 (hIL-8) Recombinant Protein: Image 2 Expand Image
    细胞迁移测定法用于测定重组 hIL-8 对人嗜中性粒细胞的作用。中性粒细胞分离后,以 2x106 个细胞/mL 的浓度上样到渗透膜上面的上室中。重组 hIL-8 以 10 ng/mL 的浓度上样到下室中,以诱导细胞迁移。PBS 用作赋形剂对照。在 37oC 下用 5% CO2 孵育小室一小时后再采集,并用细胞计数器计数,以测定细胞迁移百分比。