This assay recognizes recombinant and natural human IL-6.

Human Interleukin 6 (IL-6) ELISA Kit



Interleukin-6 (IL-6) is an interleukin that acts as both a pro-inflammatory and anti-inflammatory cytokine. It is secreted by T cells and macrophages to stimulate immune response to trauma, especially burns or other tissue damage leading to inflammation. In terms of host response to a foreign pathogen, IL-6 has been shown, in mice, to be required for resistance against the bacterium, Streptococcus pneumoniae. IL-6 is also a "myokine," a cytokine produced from muscle, and is elevated in response to muscle contraction. It is significantly elevated with exercise, and precedes the appearance of other cytokines in the circulation. During exercise, it is thought to act in a hormone-like manner to mobilize extracellular substrates and/or augment substrate delivery. Additionally, osteoblasts secrete IL-6 to stimulate osteoclast formation. Smooth muscle cells in the tunica media of many blood vessels also produce IL-6 as a pro-inflammatory cytokine. IL-6's role as an anti-inflammatory cytokine is mediated through its inhibitory effects on TNF-alpha and IL-1, and activation of IL-1ra and IL-10.

Feature and Advantages

The microtiter plate provided in this kit has been pre-coated with an antibody specific to IL-6. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated polyclonal antibody preparation specific for IL-6 and Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB (3,3'5, 5' tetramethyl-benzidine) substrate solution is added to each well. Only those wells that contain IL-6, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of IL-6 in the samples is then determined by comparing the O.D. of the samples to the standard curve.

This assay recognizes recombinant and natural human IL-6. No significant cross-reactivity or interference was observed.

15.6 pg/ml-1000 pg/ml.
The standard curve concentrations used for the ELISA’s were 1000pg/ml, 500 pg/ml, 250 pg/ml, 125 pg/ml, 62.5 pg/ml, 31.2 pg/ml, 15.6 pg/ml.

The minimum detectable dose of human IL-6 is typically less than 3.9 pg/ml.
The sensitivity of this assay, or Lower Limit of Detection (LLD) was defined as the lowest protein concentration that could be differentiated from zero.

Kit component

Reagent Quantity
1. Assay plate 1
2. Standard 2
3. Sample Diluent 1 x 20 ml
4. Biotin-antibody Diluent 1 x 10 ml
5. HRP-avidin Diluent 1 x 10 ml
6. Biotin-antibodyt 1 x 120μl
7. HRP-avidin 1 x 120μl
8. Wash Buffer 1 x 20 ml (25×concentrate)
9. TMB Substrate 1 x 10 ml
10. Stop Solution 1 x 10 ml
Product List

Product Name Cat# Quantity Price

Species : 15.6 pg/ml - 1000 pg/ml.
Assay range : 100 µL (Cell Culture Supernates, Plasma, Serum)
Assay sample volume : 6-8 hr.{3 hr

Product Name Cat# Quantity Price

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