CLIA Kit for Interleukin 31 (IL31) Homo sapiens (Human) Sandwich CLIA

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  • CLIA Kit for Interleukin 31 (IL31) Packages (Simulation)
  • CLIA Kit for Interleukin 31 (IL31) Packages (Simulation)
  • CLIA Kit for Interleukin 31 (IL31) Results demonstration
  • SCB179Hu.jpg Typical Standard Curve
  • Certificate ISO9001: 2008, ISO13485: 2003 Registered

Recovery

Matrices listed below were spiked with certain level of recombinant Interleukin 31 (IL31) and the recovery rates were calculated by comparing the measured value to the expected amount of Interleukin 31 (IL31) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 86-95 91
EDTA plasma(n=5) 80-93 89
heparin plasma(n=5) 89-103 93

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Interleukin 31 (IL31) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Interleukin 31 (IL31) 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 31 (IL31) 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) 86-97% 88-101% 91-99% 83-102%
EDTA plasma(n=5) 80-92% 91-101% 83-96% 83-103%
heparin plasma(n=5) 80-90% 78-90% 96-103% 99-105%

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
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
Substrate A 1×10mL Substrate B 1×2mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 100µL Substrate Solution. Incubate 10 minutes at 37°C;
8. Read RLU value immediately.

CLIA Kit for Interleukin 31 (IL31)

Test principle

The microplate provided in this kit has been pre-coated with an antibody specific to Interleukin 31 (IL31). Standards or samples are then added to the appropriate microplate wells with a biotin-conjugated antibody specific to Interleukin 31 (IL31). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then the mixture of substrate A and B is added to generate glow light emission kinetics. Upon plate development, the intensity of the emitted light is proportional to the Interleukin 31 (IL31) level in the sample or standard.;

Citations

  • Increased serum levels of Interleukin-31 could modulate inflammatory processes in multiple sclerosisSiaic-Review:Source
  • Increased levels of interleukin 31 (IL-31) in osteoporosisPubMed: 2644965
  • Interleukin-31 expression and relation to disease severity in human asthmapmc:PMC4783779
  • Immediate-type allergic and protease-mediated reactions are involved in scratching behaviour induced by topical application of Dermatophagoides farinae extract in NC/Nga mice.pubmed:28191683
  • The transcription factor EPAS1 links DOCK8 deficiency to atopic skin inflammation via IL-31 induction.pubmed:28067314
  • Immediate-type allergic and protease-media ted reactions are involved in scratching behavior induced by topical application of Dermatophagoides farinae extract in NC/Nga micedoi:10.1111
  • アトピー性皮膚炎の痒みの発症機序に関する研究
  • Determination the Role of Interleukin 31 (IL-31) Levels in Three Real Allergic Diseases (Asthma, Rhinitis, Urticaria)

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