Product Details
Properties
| Assay type | Sandwich-ELISA |
| Format | 96T/48T |
| Assay time | 3.5h |
| Detection range | 15.63-1000 pg/mL |
| Sensitivity | 9.38 pg/mL |
| Sample type &Sample volume | serum, plasma and other biological fluids; 100μL |
| Specificity | This kit recognizes Human IL-22 in samples. No significant cross-reactivity or interference between Human IL-22 and analogues was observed. |
| Reproducibility | Both intra-CV and inter-CV are < 10%. |
| Application | This ELISA kit applies to the in vitro quantitative determination of Human IL-22 concentrations in serum, plasma and other biological fluids. |
Test Principle
This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human IL-22. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human IL-22 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human IL-22, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human IL-22.You can calculate the concentration of Human IL-22 in the samples by comparing the OD of the samples to the standard curve.
Kit components & Storage
An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
| Item | Specifications | Storage |
|---|---|---|
| Micro ELISA Plate(Dismountable) | 96T: 8 wells ×12 strips 48T: 8 wells ×6 strips | -20℃, 6 months |
| Reference Standard | 96T: 2 vials 48T: 1 vial | |
| Concentrated Biotinylated Detection Ab (100×) | 96T: 1 vial, 120 μL 48T: 1 vial, 60 μL | |
| Concentrated HRP Conjugate (100×) | 96T: 1 vial, 120 μL 48T: 1 vial, 60 μL | -20℃(Protect from light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 2-8°C, 6 months |
| Biotinylated Detection Ab Diluent | 1 vial, 14 mL | |
| HRP Conjugate Diluent | 1 vial, 14 mL | |
| Concentrated Wash Buffer (25×) | 1 vial, 30 mL | |
| Substrate Reagent | 1 vial, 10 mL | 2-8℃(Protect from light) |
| Stop Solution | 1 vial, 10 mL | 2-8°C |
| Plate Sealer | 5 pieces | |
| Manual | 1 copy | |
| Certificate of Analysis | 1 copy |
Technical Data
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human IL-22 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human IL-22 were tested on 3 different plates, 20 replicates in each plate.
| Intra-assay Precision | Inter-assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pg/mL) | 47.10 | 100.19 | 379.68 | 46.54 | 93.89 | 405.35 |
| Standard deviation | 2.77 | 5.31 | 20.31 | 3.12 | 4.45 | 20.71 |
| CV (%) | 5.88 | 5.30 | 5.35 | 6.70 | 4.74 | 5.11 |
Recovery
The recovery of Human IL-22 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
| Sample Type | Range (%) | Average Recovery (%) |
|---|---|---|
| Serum(n=8) | 90-101 | 95 |
| EDTA plasma (n=8) | 93-108 | 101 |
| Cell culture media (n=8) | 86-97 | 91 |
Linearity
Samples were spiked with high concentrations of Human IL-22 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
Target Information
| Database Links | SwissProt: Q9GZX6 |
| Synonyms | IL22, IL-D110, IL-TIF, ILTIF, TIFIL-23, TIFa, zcyto18 |
| Research Area | Cancer, Immunology |
Assay Procedures
 | 1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C |
 | 2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C |
 | 3. Aspirate and wash the plate for 3 times |
 | 4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times |
 | 5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C |
 | 6. Add 50μL Stop Solution |
 | 7. Read the plate at 450nm immediately. Calculation of the results |
Citations
MEDIATORS OF INFLAMMATION (2021) IF: 4.711
The lncRNA H19/miR-766-3p/S1PR3 Axis Contributes to the Hyperproliferation of Keratinocytes and Skin Inflammation in Psoriasis via the AKT/mTOR PathwayDOI: 10.1155/2021/9991175
PMID: 34992498
Sample: HaCaT cell BMC Pulmonary Medicine (2021) IF: 3.317
Systemic and local cytokine profile and risk factors for persistent allergic airway inflammation in patients sensitised to house dust mite allergensPMID: 34930201
Sample: serum,nasal lavage BMC Pulmonary Medicine (2021) IF: 3.317
Role of IL-22 in persistent allergic airway diseases caused by house dust mite: a pilot studyPMID: 33478443
Sample: Serum,Nasal Lavage Fluid CYTOKINE (2020) IF: 2.952
Involvement of the cytokine TWEAK in the pathogenesis of psoriasis vulgaris, pustular psoriasis, and erythrodermic psoriasisPMID: 33302223
Sample: Serum JOURNAL OF INVESTIGATIVE SURGERY (2020) IF: 1.685
New Findings on Autoimmune Etiology of Idiopathic Granulomatous Mastitis: Serum IL-17, IL-22 and IL-23 Levels of PatientsSample: serum EUROPEAN JOURNAL OF GYNAECOLOGICAL ONCOLOGY (2020) IF: 0.215
Interleukin-22 derived from cervical cancer-associated fibroblasts accelerates senescence of normal fibroblasts and promotes expression of tumorigenesis-related factors in HeLa cellsSample: Cell culture supernatant
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