Multiplex Assay Kit for Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array)

CD126; gp80; IL6R; IL-6R-1; IL-6R-Alpha; IL6RA; IL-6 receptor subunit alpha; Membrane glycoprotein 80

Specificity

This assay has high sensitivity and excellent specificity for detection of Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array).
No significant cross-reactivity or interference between Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) and analogues was observed.

Recovery

Matrices listed below were spiked with certain level of recombinant Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) and the recovery rates were calculated by comparing the measured value to the expected amount of Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 86-102 94
EDTA plasma(n=5) 78-94 89
heparin plasma(n=5) 87-102 92

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%

Linearity

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Interleukin 6 Receptor (IL6R) ,etc. by CBA (Cytometric Bead Array) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 94-102% 80-89% 84-98% 78-89%
EDTA plasma(n=5) 78-96% 99-105% 98-105% 93-101%
heparin plasma(n=5) 92-101% 91-98% 78-97% 92-101%

Stability

The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Reagents and materials provided

Reagents Quantity Reagents Quantity

Assay procedure summary

1. Add 200μL analysis buffer solution to each well of the plate for pre-wetting;
2. Preparation of standards, reagents and samples before the experiment;
3. Add 100μL standard or sample to each well, add 10μL magnetic beads, and incubate 120 minutes protect from light at 25°C on shaker;
4. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60 minutes protect from light at 25°C on shaker;
5. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent B, and incubate 30 minutes protect from light at 25°C on shaker;
6. Wash plate once on magnetic frame;
7. Add 100μL sheath fluid, swirl for 10 minutes, read on the machine.

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Magazine Citations
J Orthop Res Interleukin‐6 and interleukin‐6 receptor expression, localization, and involvement in pain‐sensing neuron activation in a mouse intervertebral disc injury model PubMed: 26010074
Gene.  The IL6R gene polymorphisms are associated with sIL-6R, IgE and lung function in Chinese patients with asthma Pubmed:26997259
Cytokine Interleukin-6 participates in human pancreatic stellate cell activation and collagen I production via TGF-¦Â1/Smad pathway 33893003
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