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Human IL-8 ELISA Kit is a Sandwich (quantitative) ELISA kit for the measurement of Human IL-8 in Human in Plasma, Serum samples.

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Sandwich ELISA - Human IL-8 ELISA Kit (AB108869), expandable thumbnail

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Key facts

Detection method
Colorimetric
Sample types
Plasma, Serum
Assay type
Sandwich (quantitative)
Reactive species
Human
Range
0.016 - 1 ng/mL
Assay time
5h
Sensitivity
> 9.3 pg/mL

Reactivity data

Application
sELISA
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Chemotactic factor that mediates inflammatory response by attracting neutrophils, basophils, and T-cells to clear pathogens and protect the host from infection (PubMed:18692776, PubMed:7636208). Also plays an important role in neutrophil activation (PubMed:2145175, PubMed:9623510). Released in response to an inflammatory stimulus, exerts its effect by binding to the G-protein-coupled receptors CXCR1 and CXCR2, primarily found in neutrophils, monocytes and endothelial cells (PubMed:1840701, PubMed:1891716). G-protein heterotrimer (alpha, beta, gamma subunits) constitutively binds to CXCR1/CXCR2 receptor and activation by IL8 leads to beta and gamma subunits release from Galpha (GNAI2 in neutrophils) and activation of several downstream signaling pathways including PI3K and MAPK pathways (PubMed:11971003, PubMed:8662698).

Alternative names

What's included?

1 x 96 Tests
Components
100X Streptavidin-Peroxidase Conjugate
1 x 80 µL
10X Diluent N Concentrate
1 x 30 mL
20X Wash Buffer Concentrate
2 x 30 mL
50X Biotinylated Human IL-8 Antibody
1 x 120 µL
Chromogen Substrate
1 x 7 mL
IL-8 Microplate (12 x 8 well strips)
1 x 1 Unit
IL-8 Standard
1 x 1 Vial
Sealing Tapes
3 x 1 Unit
Stop Solution
1 x 11 mL

Recommended products

Human IL-8 ELISA Kit is a Sandwich (quantitative) ELISA kit for the measurement of Human IL-8 in Human in Plasma, Serum samples.

Key facts

Detection method
Colorimetric
Sample types
Plasma, Serum
Assay type
Sandwich (quantitative)
Reactive species
Human
Range
0.016 - 1 ng/mL
Assay time
5h
Assay Platform
Microplate
Sensitivity
> 9.3 pg/mL
General recovery
98%

Precision

Intra assay

Sample
Overall
n
0
C.V.
5

Inter assay

Sample
Overall
n
0
C.V.
9.9

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Notes

Abcam's IL-8 Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of IL-8 concentrations in Human cell culture supernatants, tissue extracts, serum and plasma.

An IL-8 specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently an IL-8 specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of IL-8 captured in plate.

The entire kit may be stored at -20°C for long term storage before reconstitution - Avoid repeated freeze-thaw cycles.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

IL-8 also known as CXCL8 is a cytokine with a molecular weight of approximately 8 kDa. It belongs to the CXC chemokine family and plays a role in the recruitment of neutrophils to sites of inflammation. Cells like monocytes macrophages and endothelial cells express IL-8 after activation by pro-inflammatory signals. The protein exhibits high expression in cells associated with the immune response and inflammation serving as a signaling molecule between these cell types.

Biological function summary

IL-8 functions as a chemoattractant for neutrophils and lymphocytes facilitating their movement towards the site of infection or injury. It does not form part of a larger protein complex but operates individually to enhance immune cell migration. IL-8 possesses unique binding motifs allowing it to interact with specific receptors namely CXCR1 and CXCR2 on target cells. This binding triggers cellular responses leading to effective immune surveillance and response to inflammatory stimuli.

Pathways

IL-8 operates within important inflammatory and immune response pathways. It forms a part of the NF-κB signaling cascade which activates in response to stress signals promoting the expression of other inflammatory mediators. Additionally it engages in the mitogen-activated protein kinase (MAPK) pathway influencing cellular responses such as proliferation and differentiation. The interaction of IL-8 with these pathways highlights its role in modulating immune responses and highlights its interaction with other proteins such as TNF-α and IL-1β.

Associated diseases and disorders

IL-8 shows a strong association with conditions like rheumatoid arthritis and chronic obstructive pulmonary disease (COPD). It acts as a biomarker for these diseases often correlating with disease severity and inflammation levels. In rheumatoid arthritis IL-8 contributes to joint inflammation and degradation while in COPD it enhances airway inflammation and tissue damage. The cytokine's involvement in these diseases connects it with other inflammatory mediators such as MMPs and leukotrienes which collectively exacerbate disease pathology.

Product promise

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In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

1 product image

  • Sandwich ELISA - Human IL-8 ELISA Kit (ab108869), expandable thumbnail

    Sandwich ELISA - Human IL-8 ELISA Kit (ab108869)

    Representative Standard Curve using ab108869.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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