Part of Thermo Fisher Scientific

Target 96 Inflammation




See alternative names IL8/NAP1 form II,
IL8/NAP1 form I,
GCP/IL-8 protein IV,
T-cell chemotactic factor,
Neutrophil-activating protein 1,
Monocyte-derived neutrophil-activating peptide,
Monocyte-derived neutrophil chemotactic factor,
Protein 3-10C,
GCP/IL-8 protein I,
IL8/NAP1 form III,
Lymphocyte-derived neutrophil-activating factor,
Neutrophil-activating factor,
GCP/IL-8 protein V,
IL8/NAP1 form IV,
GCP/IL-8 protein VI,
IL8/NAP1 form V,
GCP/IL-8 protein III,
IL8/NAP1 form VI,
GCP/IL-8 protein II,
Chemokine (C-X-C motif) ligand 8,
C-X-C motif chemokine 8,
Granulocyte chemotactic protein 1,

Uniprot Function Description

IL-8 is a chemotactic factor that attracts neutrophils, basophils, and T-cells, but not monocytes. It is also involved in neutrophil activation. It is released from several cell types in response to an inflammatory stimulus. IL-8(6-77) has a 5-10-fold higher activity on neutrophil activation, IL-8(5-77) has increased activity on neutrophil activation and IL-8(7-77) has a higher affinity to receptors CXCR1 and CXCR2 as compared to IL-8(1-77), respectively.

Sample type

Recommended sample types are EDTA plasma and serum. A range of additional sample types are compatible with the technology (PEA), including citrate plasma, heparin plasma, cerebrospinal fluid, (CSF), tissue and cell lysates, fine needle biopsies, microdialysis fluid, cell culture media, dried blood spots, synovial fluid, saliva, plaque extract and microvesicles. Please note that protein expression levels are expected to vary in different sample types. Certain assays are differentially affected by interfering substances such as hemolysate. Download any of our Data Validation documents or contact support@olink.com for more information.


Precision (repeatability) is calculated from linearized NPX values over LOD.

Within run precision Coefficient of Variation (CV)
Between run precision Coefficient of Variation (CV)

Analytical measuring range

The technical data reported below refers to the measured value in the in vitro validation assays run using known concentrations of recombinant antigen. Please note that these figures are for reference only and CANNOT be used to convert NPX values to absolute concentrations for proteins measured in plasma or serum samples.

LOD (pg/mL)
LLOQ (pg/mL)
ULOQ (pg/mL)
Hook (pg/mL)
Range (logs)

Sensitivity plot

The calibrator curve shown below visualizes the analytical measuring range data based on in vitro measurement of recombinant antigen. Please note that this is shown for reference only and CANNOT be used to convert NPX values to absolute concentrations for proteins measured in plasma or serum samples. The vertical dotted lines represent LLOQ and ULOQ respectively, and the horizontal line indicates the LOD.


Biomarker Validation Data

Additional validation data, as well as a more detailed description of how the Olink panels are quality controlled can be found in our Data Validation documents – go to Document download center

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