Human IL-33 Quantikine ELISA Kit

Catalog # Availability Size / Price Qty
D3300B
Control Products Available
Human IL-33 ELISA Standard Curve
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Product Details
Citations (12)
FAQs
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Human IL-33 Quantikine ELISA Kit Summary

Assay Length
4.0 hours
Sample Type & Volume Required Per Well
Cell Culture Supernates (50 uL), Cell Lysates (10 uL), Tissue Lysates (50 uL), Serum (50 uL), EDTA Plasma (50 uL), Heparin Plasma (50 uL)
Sensitivity
1.51 pg/mL
Assay Range
3.1 - 200 pg/mL (Cell Culture Supernates, Cell Lysates, Tissue Lysates, Serum, EDTA Plasma, Heparin Plasma)
Specificity
Natural and recombinant human IL-33.
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

The Quantikine Human IL-33 Immunoassay is a 4.0 hour solid phase ELISA designed to measure IL-33 in cell culture supernates, cell lysates, tissue lysates, serum, and plasma. It contains E. coli-expressed recombinant human IL-33 and antibodies raised against the recombinant factor. This immunoassay has been shown to accurately quantitate recombinant human IL-33. Results obtained using natural human IL-33 showed linear curves that were parallel to the standard curves obtained using the Quantikine® kit standards. These results indicate that this kit can be used to determine relative mass values for natural human IL-33.

Precision

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in twenty separate assays to assess inter-assay precision over one lot of kit components. Assays were performed by at least three technicians

Cell Culture Supernates, Cell Lysates, Tissue Lysates, Serum, EDTA Plasma, Heparin Plasma

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean 31 59.8 119 31 59.5 117
Standard Deviation 1.15 2.72 6.99 1.35 2.6 6.98
CV% 3.7 4.5 5.9 4.4 4.4 6

Recovery

The recovery of human IL-33 spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 97 88-107
Cell Lysis Buffer (n=4) 103 86-123
EDTA Plasma (n=4) 91 83-103
Extraction Buffer (1X) (n=2) 103 81-115
Heparin Plasma (n=4) 89 85-95
Serum (n=4) 89 85-96

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of human IL-33 were serially diluted with calibrator diluent to produce samples with values within the dynamic range of the assay.
Human IL-33 ELISA Linearity

Data Examples

Human IL-33 ELISA Standard Curve

Product Datasheets

Preparation and Storage

Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-33

IL-33 (Interleukin-33) is released from physically damaged or necrotic cells. It triggers Th2-biased immune cell activation at sites of inflammation as well as regulatory T cell and M2 macrophage expansion. It additionally induces angiogenesis, promotes tumor cell migration and invasion, limits cardiac myocyte hypertrophy, and limits the development of atherosclerotic plaques. IL-33 signals through a receptor complex composed of ST2 and IL-1 RAcP. IL-1 RAcP also associates with IL-1 RI, IL-1 RII, IL-1 R6, and SCF R/c-kit. Soluble isoforms of ST2 and IL-1 RAcP function as decoy receptors that regulate IL-33 bioactivity.

Long Name:
Interleukin 33
Entrez Gene IDs:
90865 (Human); 77125 (Mouse)
Alternate Names:
C9orf26; C9orf26chromosome 9 open reading frame 26 (NF-HEV); DKFZp586H0523; DVS27; DVS27-related protein; IL1F11; IL-1F11; IL33; IL-33; interleukin 33; Interleukin-1 family member 11; interleukin-33; NFHEV; NF-HEV; NF-HEVNFEHEV; Nuclear factor from high endothelial venules; RP11-575C20.2
⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Citations for Human IL-33 Quantikine ELISA Kit

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

12 Citations: Showing 1 - 10
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  1. Serum IL-33 level is associated with auto-antibodies but not with clinical response to biologic agents in rheumatoid arthritis
    Authors: E Rivière, J Sellam, J Pascaud, P Ravaud, JE Gottenberg, X Mariette
    Arthritis Res. Ther., 2018;20(1):122.
    Species: Human
    Sample Types: Serum
  2. Genetic variants in IL-33/ST2 pathway with the susceptibility to hepatocellular carcinoma in a Chinese population
    Authors: ZH Wei, YY Li, SQ Huang, ZQ Tan
    Cytokine, 2018;0(0):.
    Species: Human
    Sample Types: Plasma
  3. In drug-induced, immune-mediated hepatitis, interleukin-33 reduces hepatitis and improves survival independently and as a consequence of FoxP3+ T-cell activity
    Authors: M Cottagiri, M Nyandjo, M Stephens, J Mantilla, H Saito, IR Mackay, NR Rose, DB Njoku
    Cell. Mol. Immunol., 2018;0(0):.
    Species: Human
    Sample Types: Serum
  4. Serum sST2 levels predict severe exacerbation of asthma
    Authors: M Watanabe, K Nakamoto, T Inui, M Sada, K Honda, M Tamura, Y Ogawa, T Yokoyama, T Saraya, D Kurai, H Ishii, H Takizawa
    Respir. Res., 2018;19(1):169.
    Species: Human
    Sample Types: Serum
  5. Regulatory T cell frequency, but not plasma IL-33 levels, represents potential immunological biomarker to predict clinical response to intravenous immunoglobulin therapy
    Authors: MS Maddur, E Stephen-Vi, M Das, P Prakhar, VK Sharma, V Singh, M Rabin, J Trinath, KN Balaji, F Bolgert, JM Vallat, L Magy, SV Kaveri, J Bayry
    J Neuroinflammation, 2017;14(1):58.
    Species: Human
    Sample Types: Plasma
  6. Upregulation of interleukin-33 and thymic stromal lymphopoietin levels in the lungs of idiopathic pulmonary fibrosis
    Authors: JU Lee, HS Chang, HJ Lee, CA Jung, DJ Bae, HJ Song, JS Park, ST Uh, YH Kim, KH Seo, CS Park
    BMC Pulm Med, 2017;17(1):39.
    Species: Human
    Sample Types: BALF
  7. Immune and Imaging Correlates of Mild Cognitive Impairment Conversion to Alzheimer's Disease
    Authors: F La Rosa, M Saresella, F Baglio, F Piancone, I Marventano, E Calabrese, R Nemni, E Ripamonti, M Cabinio, M Clerici
    Sci Rep, 2017;7(1):16760.
    Species: Human
    Sample Types: Cell Culture Supernates
  8. Th1/Th17-Related Cytokines and Chemokines and Their Implications in the Pathogenesis of Pemphigus Vulgaris
    Authors: RP Timoteo, MV da Silva, CB Miguel, DA Silva, JD Catarino, V Rodrigues, H Sales-Camp, CJ Freire Oli
    Mediators Inflamm., 2017;2017(0):7151285.
    Species: Human
    Sample Types: Serum
  9. Carotid plaque and bone density and microarchitecture in psoriatic arthritis: the correlation with soluble ST2
    Sci Rep, 2016;6(0):32116.
    Species: Human
    Sample Types: Plasma
  10. IL-33 reflects dynamics of disease activity in patients with autoimmune hemolytic anemia by regulating autoantibody production.
    Authors: Bu X, Zhang T, Wang C, Ren T, Wen Z
    J Transl Med, 2015;13(0):381.
    Species: Human
    Sample Types: Serum
  11. High plasma levels of soluble ST2 but not its ligand IL-33 is associated with severe forms of pediatric dengue.
    Authors: Guerrero C, Arrieta A, Ramirez N, Rodriguez L, Vega R, Bosch I, Rodriguez J, Narvaez C, Salgado D
    Cytokine, 2013;61(3):766-71.
    Species: Human
    Sample Types: Plasma
  12. The challenge of measuring IL-33 in serum using commercial ELISA: lessons from asthma.
    Authors: Ketelaar M, Nawijn M, Shaw D, Koppelman G, Sayers I
    Clin Exp Allergy, 0;46(6):884-7.
    Species: Human
    Sample Types: Serum

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