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Human IL-18(Interleukin 18) ELISA Kit

  • Cat.No.:E-EL-H0253

  • Reactivity: Human

To Purchase E-EL-H0253

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

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-18 in samples. No significant cross-reactivity or interference between Human IL-18 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-18 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-18. 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-18 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-18, 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-18. You can calculate the concentration of Human IL-18 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.
ItemSpecificationsStorage
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-18 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-18 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) 54.60 160.50 353.50 56.70 176.10 373.50
Standard deviation 3.30 7.50 17.00 3.90 7.70 13.40
CV (%) 6.04 4.67 4.81 6.88 4.37 3.59

Recovery

The recovery of Human IL-18 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) 94-109 100
EDTA plasma (n=8) 89-101 96
Cell culture media (n=8) 85-96 91

Linearity

Samples were spiked with high concentrations of Human IL-18 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   Q14116
SynonymsIL18, IGIF, IL-1g, IL-1F4, Interferon-gamma-inducing factor
Research AreaCancer, Metabolism, Immunology

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. Cell Death & Disease (2021) IF: 8.4689
    Histone deacetylase 2 regulates ULK1 mediated pyroptosis during acute liver failure by the K68 acetylation site

    DOI: 10.1038/s41419-020-03317-9

    PMID: 33431796

    Sample: Serum,Cell culture supernatant
  2. Cellular and Molecular Gastroenterology and Hepatology (2022) IF: 8.7970
    Klebsiella pneumoniae induces inflammatory bowel disease through caspase-11-mediated IL-18 in the gut epithelial cells

    DOI: 10.1016/j.jcmgh.2022.11.005

    Sample: human colon organoid
  3. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2022) IF: 7.129
    Autophagy promotes GSDME-mediated pyroptosis via intrinsic and extrinsic apoptotic pathways in cobalt chloride-induced hypoxia reoxygenation-acute kidney injury

    DOI: 10.1016/j.ecoenv.2022.113881

    PMID: 35863214

    Sample: HK-2 cell
  4. FOOD RESEARCH INTERNATIONAL (2022) IF: 7.425
    N-3 polyunsaturated fatty acids protect esophageal epithelial cells from acid exposure

    DOI: 10.1016/j.foodres.2022.111943

    PMID: 36461199

    Sample: Het-1A cell
  5. Cells (2022) IF: 7.666
    Hypoxia-Induced HIF-1α Expression Promotes Neurogenic Bladder Fibrosis via EMT and Pyroptosis

    DOI: 10.3390/cells11233836

  6. Frontiers in Cell and Developmental Biology (2021) IF: 6.684
    Autophagy-Based Unconventional Secretory for AIM2 Inflammasome Drives DNA Damage Resistance During Intervertebral Disc Degeneration

    DOI: 10.3389/fcell.2021.672847

    PMID: 34239872

    Sample: NP cells
  7. Nutrients (2022) IF: 6.706
    CCN1/Integrin α5β1 Instigates Free Fatty Acid-Induced Hepatocyte Lipid Accumulation and Pyroptosis through NLRP3 Inflammasome Activation

    DOI: 10.3390/nu14183871

    Sample: LO2 hepatocytes
  8. Journal of Inflammation Research (2022) IF: 6.922
    Long Noncoding RNA MIAT Regulates Hyperosmotic Stress-Induced Corneal Epithelial Cell Injury via Inhibiting the Caspase-1-Dependent Pyroptosis and Apoptosis in Dry Eye Disease

    DOI: 10.2147/JIR.S361541

    PMID: 35676970

    Sample: Human corneal epithelial cell (HCECs)
  9. OSTEOARTHRITIS AND CARTILAGE (2018) IF: 5.454
    Associations between knee structural measures, circulating inflammatory factors and MMP13 in patients with knee osteoarthritis

    DOI: 10.1016/j.joca.2018.05.003

    Sample: Serum
  10. AIDS (2015) IF: 5.554
    Switch to maraviroc/raltegravir dual therapy leads to an unfavorable immune profile with low-level HIV viremia

    DOI: 10.1097/QAD.0000000000000626

    Sample: plasma
  11. MOLECULAR NEUROBIOLOGY (2022) IF: 5.682
    Acrylamide Induces Neurotoxicity in SH-SY5Y Cells via NLRP3-mediated Pyroptosis

    DOI: 10.1007/s12035-022-03098-6

  12. American Journal of Translational Research (2019) IF: 4.06
    HMGB1-induced endothelial cell pyroptosis is involved in systemic inflammatory response syndrome following radiofrequency ablation of hepatic hemangiomas

    PMID: 31934300

    Sample: serum,HUVECs
  13. JOURNAL OF PHYSIOLOGY AND BIOCHEMISTRY (2021) IF: 4.158
    Autophagy blockage promotes the pyroptosis of ox-LDL-treated macrophages by modulating the p62/Nrf2/ARE axis

    DOI: 10.1007/s13105-021-00811-2

    PMID: 33886081

    Sample: Cell culture supernatant
  14. CELLULAR MICROBIOLOGY (2019) IF: 4.288
    Fatty acylCoA synthetase FadD13 regulates proinflammatory cytokine secretion dependent on the NF‐κB signalling pathway by binding to eEF1A1

    DOI: 10.1111/cmi.13090

    Sample: Cell culture supernatant
  15. JOURNAL OF ETHNOPHARMACOLOGY (2021) IF: 4.36
    Preservation of mitochondrial homeostasis is responsible for the ameliorative effects of Suhuang antitussive capsule on non-resolving inflammation via inhibition of NF-κB signaling and NLRP3 inflammasome activation

    DOI: 10.1016/j.jep.2021.113827

    PMID: 33460751

    Sample: Cell culture supernatant(THP-1 cells)
  16. CELL BIOLOGY INTERNATIONAL (2023) IF: 4.473
    TFEB attenuates hyperglycemia-induced retinal capillary endothelial cells injury via autophagy regulation

    DOI: 10.1002/cbin.12002

    Sample: human retinal capillary endothelial cells (HRCECs)
  17. Toxins (2021) IF: 4.546
    Biomarkers of Uremic Cardiotoxicity

    DOI: 10.3390/toxins13090639

    PMID: 34564643

    Sample: serum
  18. Frontiers in Immunology (2019) IF: 4.716
    Mechanistic Insight Into the Activation of the NLRP3 Inflammasome by Neisseria gonorrhoeae in Macrophages

    DOI: 10.3389/fimmu.2019.01815

    Sample: THP-1 cells
  19. Journal of Immunology Research (2021) IF: 4.818
    Moesin Is a Novel Biomarker of Endothelial Injury in Sepsis

    DOI: 10.1155/2021/6695679

    PMID: 33628853

    Sample: Cell culture supernatant(HMECs)
  20. Aging-US (2020) IF: 4.831
    Electrical stimulation inhibits Val-boroPro-induced pyroptosis in THP-1 macrophages via sirtuin3 activation to promote autophagy and inhibit ROS generation

    DOI: 10.18632/aging.103038

    Sample: THP-1 cell
  21. INTERNATIONAL IMMUNOPHARMACOLOGY (2021) IF: 4.932
    ESAT-6 impedes IL-18 mediated phagosome lysosome fusion via microRNA-30a upon Calcimycin treatment in mycobacteria infected macrophages

    DOI: 10.1016/j.intimp.2021.108319

    PMID: 34740079

    Sample: THP-1 cells
  22. INTERNATIONAL IMMUNOPHARMACOLOGY (2022) IF: 4.932
    Chlorogenic acid attenuates inflammation in LPS-induced Human gingival fibroblasts via CysLT1R/Nrf2/NLRP3 signaling

    DOI: 10.1016/j.intimp.2022.108706

    PMID: 35313270

    Sample: Human gingival fibroblasts (HGFs)
  23. NEUROCHEMICAL RESEARCH (2020) IF: 3.038
    MiR-1202 Exerts Neuroprotective Effects on OGD/R Induced Inflammation in HM Cell by Negatively Regulating Rab1a Involved in TLR4/NF-κB Signaling Pathway

    DOI: 10.1007/s11064-020-02991-7

    PMID: 32124161

    Sample: Cell culture medium
  24. INFLAMMATION RESEARCH (2019) IF: 3.061
    TNF-α/calreticulin dual signaling induced NLRP3 inflammasome activation associated with HuR nucleocytoplasmic shuttling in rheumatoid arthritis

    DOI: 10.1007/s00011-019-01244-w

    Sample: rheumatoid arthritis (RA) fibroblast-like synovioc
  25. Bioengineered (2021) IF: 3.269
    Knock-down of microRNA miR-556-5p increases cisplatin-sensitivity in non-small cell lung cancer (NSCLC) via activating NLR family pyrin domain containing 3 (NLRP3)-mediated pyroptotic cell death

    DOI: 10.1080/21655979.2021.1971502

    PMID: 34488537

    Sample: A549 cell,H1299 cell
  26. FISH & SHELLFISH IMMUNOLOGY (2019) IF: 3.298
    The first cloned echinoderm tumor necrosis factor receptor from Holothuria leucospilota: Molecular characterization and functional analysis

    DOI: 10.1016/j.fsi.2019.08.008

    PMID: 31394160

    Sample: Cell culture supernatant
  27. Biomed Research International (2020) IF: 3.411
    CD147 Aggravated Inflammatory Bowel Disease by Triggering NF-κB-Mediated Pyroptosis

    DOI: 10.1155/2020/5341247

    Sample: Serum
  28. EXPERIMENTAL EYE RESEARCH (2021) IF: 3.467
    Wedelolactone ameliorates Pseudomonas aeruginosa-induced inflammation and corneal injury by suppressing caspase-4/5/11/GSDMD-mediated non-canonical pyroptosis

    DOI: 10.1016/j.exer.2021.108750

    PMID: 34481822

    Sample: piHCKs
  29. JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY (2021) IF: 3.652
    Proanthocyanidins attenuate the high glucose-induced damage of retinal pigment epithelial cells by attenuating oxidative stress and inhibiting activation of the NLRP3 inflammasome

    DOI: 10.1002/jbt.22845

    PMID: 34338401

    Sample: ARPE-19 cell
  30. Annals of Translational Medicine (2021) IF: 3.932
    Effect and mechanism of phospholipid scramblase 4 (PLSCR4) on lipopolysaccharide (LPS)-induced injury to human pulmonary microvascular endothelial cells

    DOI: 10.21037/atm-20-7983

    PMID: 33569461

    Sample: HPMECs
  31. JOURNAL OF MEDICAL VIROLOGY (2020) IF: 2.021
    Evaluation of alpha defensin, IL‐1 receptor antagonist, and IL‐18 levels in COVID‐19 patients with macrophage activation syndrome and acute respiratory distress syndrome

    DOI: 10.1002/jmv.26589

    Sample: Plasma
  32. JOURNAL OF ORAL PATHOLOGY & MEDICINE (2019) IF: 2.03
    Assessment of Interleukin‐18 gene polymorphism and serum levels in oral lichen planus in an Indian population

    DOI: 10.1111/jop.12830

    Sample: serum
  33. Innate Immunity (2019) IF: 2.173
    Functional characterisation of Holothuria leucospilota Fas-associated death domain in the innate immune-related signalling pathways:

    DOI: 10.1177/1753425919877680

    Sample: Cell culture supernatant
  34. PeerJ (2019) IF: 2.353
    The role of serum and urinary biomarkers in the diagnosis of early diabetic nephropathy in patients with type 2 diabetes

    DOI: 10.7717/peerj.7079

    Sample: urinary,serum
  35. BMC Molecular and Cell Biology (2022) IF: 2.813
    Ceramide induces pyroptosis through TXNIP/NLRP3/GSDMD pathway in HUVECs

    DOI: 10.1186/s12860-022-00459-w

    Sample: Human Umbilical Vein Endothelial Cells (HUVECs)
  36. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS (2020) IF: 2.985
    Metformin alleviates high glucose-induced ER stress and inflammation by inhibiting the interaction between caveolin1 and AMPKα in rat astrocytes

    DOI: 10.1016/j.bbrc.2020.10.075

    PMID: 33143871

    Sample: Cell culture supernatant
  37. SCANDINAVIAN JOURNAL OF CLINICAL & LABORATORY INVESTIGATION (2019) IF: 1.38
    Endothelial pyroptosis underlies systemic inflammatory response following radiofrequency ablation of hepatic hemangiomas

    DOI: 10.1080/00365513.2019.1689428

    PMID: 31710248

    Sample: Serum,Cell culture supernatant
  38. International Journal of Ophthalmology (2021) IF: 1.779
    Effects of quercetin on diabetic retinopathy and its association with NLRP3 inflammasome and autophagy

    DOI: 10.18240/ijo.2021.01.06

    PMID: 33469482

    Sample: Cell culture supernatant
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