Simple Plex Human IL-6 Cartridge

Simple Plex Cartridge Kit for 72 samples, containing IL-6 for use with Human Plasma/Serum. Includes wash buffer and sample diluent SD13. For use with the Ella automated immunoassay system

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IL-6 Simple Plex Assay
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Simple Plex Human IL-6 Cartridge Summary

Sample Type & Volume Required Per Well
Bronchoalveolar Lavage Fluid (25 uL), Cell Culture Supernates (25 uL), Serum (25 uL), EDTA Plasma (25 uL), Heparin Plasma (25 uL)
Sensitivity
0.26 pg/mL
Assay Range
0.3 - 2,652 pg/mL (Bronchoalveolar Lavage Fluid, Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Specificity
Natural and recombinant human IL-6. 
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.

Product Summary

Simple Plex assay for the detection of human IL-6 in cell culture supernatant (CCS), serum, plasma (EDTA/Heparin), and bronchoalveolar lavage fluid (BALF)

Precision

Intra-Assay Precision (Precision within an assay) Each control was tested 16 times in one assay
Inter-Assay Precision (Precision between assays) Replicates of each control were tested in multiple assays performed by at least three technicians using two lots of reagents

Bronchoalveolar Lavage Fluid, Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 1 2
n 16 16 16 16
Mean 47.2 1833 41.5 1800
Standard Deviation 1.17 71 3.5 128
CV% 2.4 3.9 8.3 7.1

Recovery

Recovery at three different spiked concentrations within the range of the assay was evaluated.

Sample Type Average % Recovery Range %
EDTA Plasma (n=6) 99 88-112
Heparin Plasma (n=6) 85 70-105
Serum (n=6) 88 74-98

Linearity

Samples containing and/or spiked with high concentra- tions of human IL-6 were serially diluted with Sample Diluent to produce samples within the dynamic range of the assay.

IL-6 Simple Plex Assay Linearity

Data Examples

Human IL-6 Simple PlexCartridge Kit for use with the Ella Automated Immunoassay System

IL-6 Simple Plex Assay Standard Curve

Product Datasheets

Preparation and Storage

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

Background: IL-6

Interleukin 6 (IL-6) is a pleiotropic, a-helical, 22-28 kDa phosphorylated and variably glycosylated cytokine that plays important roles in the acute phase reaction, inflammation, hematopoiesis, bone metabolism, and cancer progression. Mature human IL-6 is 183 amino acids (aa) in length and shares 39% aa sequence identity with mouse and rat IL-6. Alternative splicing generates several isoforms with internal deletions, some of which exhibit antagonistic properties. Cells known to express IL-6 include CD8+ T cells, fibroblasts, synoviocytes, adipocytes, osteoblasts, megakaryocytes, endothelial cells (under the influence of endothelins), sympathetic neurons, cerebral cortex neurons, adrenal medulla chromaffin cells, retinal pigment cells, mast cells, keratinocytes, Langerhans cells, fetal and adult astrocytes, neutrophils, monocytes, eosinophils, colonic epithelial cells, B1 B cells and pancreatic islet beta cells. IL-6 production is generally correlated with cell activation and is normally kept in control by glucocorticoids, catecholamines, and secondary sex steroids. Normal human circulating IL-6 is in the 1 pg/mL range, with slight elevations during the menstrual cycle, modest elevations in certain cancers, and large elevations after surgery.

IL-6 induces signaling through a cell surface heterodimeric receptor complex composed of a ligand binding subunit (IL-6 R alpha) and a signal transducing subunit (gp130). IL-6 binds to IL-6 Ra, triggering IL-6 Ra association with gp130 and gp130 dimerization. gp130 is also a component of the receptors for CLC, CNTF, CT-1, IL-11, IL-27, LIF, and OSM. Soluble forms of IL-6 Ra are generated by both alternative splicing and proteolytic cleavage. In a mechanism known as trans-signaling, complexes of soluble IL-6 and IL-6 Ra elicit responses from gp130-expressing cells that lack cell surface IL-6 Ra. Trans-signaling enables a wider range of cell types to respond to IL-6, as the expression of gp130 is ubiquitous, while that of IL-6 Ra is predominantly restricted to hepatocytes, monocytes, and resting lymphocytes. Soluble splice forms of gp130 block trans-signaling from IL-6/IL-6 Ra but not from other cytokines that use gp130 as a co-receptor.

IL-6, along with TNF-a and IL-1, drives the acute inflammatory response. IL-6 is almost solely responsible for fever and the acute phase response in the liver, and it is important in the transition from acute inflammation to either acquired immunity or chronic inflammatory disease. When dysregulated, it contributes to chronic inflammation in conditions such as obesity, insulin resistance, inflammatory bowel disease, arthritis, and sepsis. IL-6 modulates bone resorption and is a major effector of inflammatory joint destruction in rheumatoid arthritis through its promotion of Th17 cell development and activity. It contributes to atherosclerotic plaque development and destabilization as well as the development of inflammation-associated carcinogenesis.

Long Name:
Interleukin 6
Entrez Gene IDs:
3569 (Human); 16193 (Mouse); 24498 (Rat); 399500 (Porcine); 280826 (Bovine); 403985 (Canine); 102138971 (Cynomolgus Monkey); 100034196 (Equine); 493687 (Feline); 463288 (Primate); 100008733 (Rabbit)
Alternate Names:
B cell stimulatory factor-2; B-cell differentiation factor; BSF2; BSF-2; BSF2CTL differentiation factor; CDF; HGFHSFIFNB2Hybridoma growth factor; IFNB2; IFN-beta-2; IL6; IL-6; IL-6B-cell stimulatory factor 2; Interferon beta-2; interleukin 6 (interferon, beta 2); interleukin BSF-2; interleukin-6; MGI-2A

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