Human IL-8/CXCL8 Quantikine ELISA Kit

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RT-qPCR for a set of cytokines (CSF2, IL6, IL8 and IL1B) and chemokines (CXCL1 and CXCL6) of total RNA samples derived from mono- and co-cultures in a transwell assay.The respective co- (+) or mono- (-) culture is ...read more
Pathogen-associated molecular patterns (PAMPs) and damage-associated molecular pattern (DAMPs) induce cytokine expression in human breast cancer cells in vitro. a Relative expression of IL-6 and IL-8 mRNAs after 6 h ...read more
Toll-like receptor 4 (TLR4) silencing decreases endogenous levels of pro-inflammatory cytokines. a Effect of TLR2/4 silencing in breast cancer cells transfected with negative control (nc) siRNA, or siRNA directed ...read more
Pathogen-associated molecular patterns (PAMPs) and damage-associated molecular pattern (DAMPs) induce cytokine expression in human breast cancer cells in vitro. a Relative expression of IL-6 and IL-8 mRNAs after 6 h ...read more
Pathogen-associated molecular patterns (PAMPs) and damage-associated molecular pattern (DAMPs) induce cytokine expression in human breast cancer cells in vitro. a Relative expression of IL-6 and IL-8 mRNAs after 6 h ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications ELISA
Conjugate
HRP

Order Details

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Catalog# & Conjugate Size Price

Human IL-8/CXCL8 Quantikine ELISA Kit Summary

Background
The Quantikine Human IL-8 Immunoassay is a 3.5 hour solid phase ELISA designed to measure human IL-8 in cell culture supernates, serum, and plasma. It is based on antibodies raised against the 72 aa variant of human IL-8 derived from E. coli. It is calibrated with the same recombinant factor. This immunoassay accurately quantitates recombinant human IL-8. Measurement of natural huma...n IL-8 or the 77 aa variant of human IL-8 gave results parallel to the standard curves obtained using the E. coli-expressed Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for natural human IL-8.
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Specificity
Natural and recombinant human IL-8
Source
N/A
Assay Type
Solid Phase Sandwich ELISA
Inter-Assay
See PDF Datasheet for details
Intra-Assay
See PDF Datasheet for details
Spike Recovery
See PDF Datasheet for details
Sample Volume
See PDF Datasheet for details
Gene
CXCL8

Applications/Dilutions

Dilutions
  • ELISA
Application Notes
No significant interference observed with available related molecules.
Publications
Read Publications using
D8000C in the following applications:

Packaging, Storage & Formulations

Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Human IL-8/CXCL8 Quantikine ELISA Kit

  • 3-10C
  • AMCF-I
  • C-X-C motif chemokine 8
  • CXCL8
  • CXCL8SCYB8
  • Emoctakin
  • GCP1
  • GCP-1TSG-1
  • IL8
  • IL-8
  • interleukin 8
  • K60
  • LAI
  • LECT
  • LUCT
  • LYNAP
  • MDNCF
  • MDNCFb-ENAP
  • member 8
  • MONAP
  • MONAPGCP1
  • NAF
  • NAP1
  • NAP-1NAP1
  • NCF
  • Neutrophil-activating protein 1
  • Protein 3-10C
  • T cell chemotactic factor
  • T-cell chemotactic factor
  • TCF
  • TSG1

Background

Interleukin-8 (IL-8), also known as IL-8, GCP-1, and NAP-1, is a heparin-binding 8-9 kDa member of the alpha, or CXC family of chemokines. There are at least 15 human CXC family members that all adopt a three beta -sheet/one alpha -helix structure. Most CXC chemokines show an N-terminal Glu-Leu-Arg (ELR) tripeptide motif. IL-8 circulates as a monomer, homodimer, and heterodimer with CXCL4/PF4. The monomer is considered the most bio-active, while the heterodimer can potentiate PF4 activity. IL-8 oligomerization is modulated by its interactions with matrix and cell surface glycosaminoglycans (GAGs). Mature human IL-8 shares 65-69% amino acid (aa) identity with canine, feline, and porcine IL-8. There is no IL-8 gene counterpart in rodent. 

Multiple isoforms of IL-8 are generated through both alternative splicing and differential proteolytic cleavage. In humans, alternative splicing generates an iso-form with an eleven aa substitution at the C-terminus. Proteolytic processing results in N-terminal truncation of IL-8 and is likely a cell-specific event. For example, fibroblasts and endothelial cells generate the 1-77 form by cleaving IL-8 following Glu21, while monocytes and lymphocytes generate the 6-77 form by cleaving following Leu25. These truncated forms generally show increased bioactivity, particularly through the CXCR1 receptor. IL-8 can also undergo citrullination on Arg27 of the precursor, a modification that increases its half-life and ability to induce leukocytosis. A wide variety of cells secrete IL-8 including monocytes and neutrophils, fibroblasts and keratinocytes, mast cells, visceral smooth muscle cells, dendritic cells, type II great alveolar cells, and endothelial cells. 

IL-8 bioactivity is mediated through two G-protein-coupled receptors, termed CXCR1/IL-8 RA and CXCR2/IL-8 RB. CXCR1 is 45-50 kDa in size and is used almost exclusively by IL-8. CXCR2 is 35-40 kDa in size and is used by nearly all CXC chemokines. Both CXCR1 and CXCR2 constitutively associate into functional homodimers. They can also heterodimerize, but these complexes dissociate following IL-8 binding. CXCR2 responds to low concentrations of IL-8 and is principally associated with chemotaxis and MMP-9 release. CXCR1, in contrast, responds to high concentrations of IL-8 and is associated with respiratory burst and phospholipase D2 activation. Thus, CXCR2 ligation induces leukocyte adhesion to activated vascular endothelium and migration to sites of inflammation, while CXCR1 ligation primes neutrophil antimicrobial activity. IL-8 can also form a complex with Serpin A1/alpha-1 Antitrypsin, and this prevents IL-8 interaction with CXCR1. 

In addition to its pro-inflammatory effects, IL-8 is involved in angiogenesis and the pathogenesis of atherosclerosis and cancer. It induces VEGF expression in vascular endothelial cells and functions as an autocrine factor for EC growth and angiogenesis. It is upregulated in atherosclerotic lesions and is elevated in the serum and cerebrospinal fluid following myocardial infarction. In cancer, IL-8 promotes epithelial-mesenchymal transition as well as tumor cell invasiveness and metastasis.

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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Publications for CXCL8/IL-8 (D8000C)(449)

We have publications tested in 12 confirmed species: Human, Mouse, Rat, Bacteria - Streptococcus pyogenes, Bovine, Porcine, Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque), Primate - Macaca mulatta (Rhesus Macaque), Primate - Papio cynocephalus (Yellow Baboon), Primate - Papio hamadryas (Hamadyras Baboon), Rabbit,  Human.

We have publications tested in 1 application: ELISA Capture.


Filter By Application
ELISA Capture
(3)
All Applications
Filter By Species
Human
(425)
Mouse
(6)
Rat
(3)
Bacteria - Streptococcus pyogenes
(1)
Bovine
(4)
Porcine
(1)
Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque)
(2)
Primate - Macaca mulatta (Rhesus Macaque)
(2)
Primate - Papio cynocephalus (Yellow Baboon)
(1)
Primate - Papio hamadryas (Hamadyras Baboon)
(1)
Rabbit
(3)
 Human
(1)
All Species
Showing Publications 1 - 10 of 449. Show All 449 Publications.
Publications using D8000C Applications Species
Kido, R;Hiroshima, Y;Kido, JI;Bando, M;Yoshida, K;Inagaki, Y;Yumoto, H; Lipocalin 2 inhibits the expressions of interleukin-8 and macrophage inflammatory protein-1? in human neutrophil-like cells Journal of oral biosciences 2025-01-30 [PMID: 39892784] (Human) Human
Kowalska, M;Tylicka, M;Koper-Lenkiewicz, OM;Kami?ska, J;Dorf, J;Matuszczak, E; Plasma concentration of MMP-17 is elevated in boys with cryptorchidism and correlates with HSP-70 Scientific reports 2025-01-02 [PMID: 39747260] (Human) Human
Panda, K;Santiago, MJ;Rahman, MS;Ghorai, S;Black, SM;Rahman, I;Unwalla, HJ;Chinnapaiyan, S; HIV-1 Tat Protein and Cigarette Smoke Mediated ADAM17 Upregulation Can Lead to Impaired Mucociliary Clearance Cells 2024-12-05 [PMID: 39682757] (Human) Human
Alshehri, JH;Al-Nasrallah, HK;Al-Ansari, MM;Aboussekhra, A; Activation of Mammary Epithelial and Stromal Fibroblasts upon Exposure to Escherichia coli Metabolites Cells 2024-10-17 [PMID: 39451241] (Human) Human
Saraf, N;Ramachandran, RA;Cao, M;Lemoff, A;Baniasadi, H;Robertson, DM; Serum-Derived Extracellular Vesicles for the Treatment of Severe Ocular Surface Disease The ocular surface 2024-08-17 [PMID: 39159888] (Human) Human
Polis, B;Zeman, K;Zakrzewski, K;Fabijan, A;Nowos?awska, E; Peripheral white blood cell patterns in children with hydrocephalus as a response to ventriculo-peritoneal shunt infection PloS one 2024-08-09 [PMID: 39121090] (Human) Human
Matsui, C;Koide, H;Ikeda, T;Ikegami, T;Yamamoto, T;Escandón, JM;Mohammad, A;Ito, T;Mizuno, H; Cytokines released from human adipose tissue-derived stem cells by bFGF stimulation: Effects of IL-8 and CXCL-1 on wound healing Regenerative therapy 2024-06-01 [PMID: 39045577] (Human) Human
Widjaja, AA;Lim, WW;Viswanathan, S;Chothani, S;Corden, B;Dasan, CM;Goh, JWT;Lim, R;Singh, BK;Tan, J;Pua, CJ;Lim, SY;Adami, E;Schafer, S;George, BL;Sweeney, M;Xie, C;Tripathi, M;Sims, NA;Hübner, N;Petretto, E;Withers, DJ;Ho, L;Gil, J;Carling, D;Cook, SA; Inhibition of IL-11 signalling extends mammalian healthspan and lifespan Nature 2024-07-17 [PMID: 39020175] (Human) Human
Peng, Z;Zhang, W;Hong, H;Liu, L; Effect of luteolin on oxidative stress and inflammation in the human osteoblast cell line hFOB1.19 in an inflammatory microenvironment BMC pharmacology & toxicology 2024-07-12 [PMID: 38997762] (Human) Human
Hu, Q;Qu, W;Zhang, T;Feng, J;Dong, X;Nie, R;Chen, J;Wang, X;Peng, C;Ke, X; C1q/Tumor Necrosis Factor-Related Protein-9 Is a Novel Vasculoprotective Cytokine That Restores High Glucose-Suppressed Endothelial Progenitor Cell Functions by Activating the Endothelial Nitric Oxide Synthase Journal of the American Heart Association 2024-02-20 [PMID: 38348774] (Human) Human
Show All 449 Publications.

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Bioinformatics

Gene Symbol CXCL8