Human IL-24 DuoSet ELISA Summary
* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.
This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human IL-24. The suggested diluent is suitable for the analysis of most cell culture supernate samples. Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet.
Product Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Economical alternative to complete kits
Kit Content
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.
The components listed above may be purchased separately:
PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2 - 7.4, 0.2 µm filtered
Wash Buffer: (Catalog # WA126), or 0.05% Tween® 20 in PBS, pH 7.2-7.4
Reagent Diluent: (Catalog # DY995), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered
Substrate Solution: 1:1 mixture of Color Reagent A (H2O2) and Color Reagent B (Tetramethylbenzidine) (Catalog # DY999)
Stop Solution: 2 N H2SO4 (Catalog # DY994)
Microplates: R&D Systems (Catalog # DY990)
Plate Sealers: ELISA Plate Sealers (Catalog # DY992)
Scientific Data
Product Datasheets
Preparation and Storage
Background: IL-24
Interleukin 24 (IL-24), also known as MDA-7 (melanoma differentiation associated gene-7), is a member of the IL-10 family of helical cytokines. When secreted, IL-24 is a 35- to 40-kDa phosphorylated glycoprotein that may exist as either a monomer or dimer. Cells known to express IL-24 include B cells, CD4+ T cells, NK cells, lymph node dendritic cells, monocytes, melanocytes, and melanoma cells. IL-24 binds two heterodimeric receptor complexes, IL-20 R alpha/IL-20 R beta and IL-22 R/IL-20 R beta.
Assay Procedure
GENERAL ELISA PROTOCOL
Plate Preparation
- Dilute the Capture Antibody to the working concentration in PBS without carrier protein. Immediately coat a 96-well microplate with 100 μL per well of the diluted Capture Antibody. Seal the plate and incubate overnight at room temperature.
- Aspirate each well and wash with Wash Buffer, repeating the process two times for a total of three washes. Wash by filling each well with Wash Buffer (400 μL) using a squirt bottle, manifold dispenser, or autowasher. Complete removal of liquid at each step is essential for good performance. After the last wash, remove any remaining Wash Buffer by aspirating or by inverting the plate and blotting it against clean paper towels.
- Block plates by adding 300 μL Reagent Diluent to each well. Incubate at room temperature for a minimum of 1 hour.
- Repeat the aspiration/wash as in step 2. The plates are now ready for sample addition.
Assay Procedure
- Add 100 μL of sample or standards in Reagent Diluent, or an appropriate diluent, per well. Cover with an adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the Detection Antibody, diluted in Reagent Diluent, to each well. Cover with a new adhesive strip and incubate 2 hours at room temperature.
- Repeat the aspiration/wash as in step 2 of Plate Preparation.
- Add 100 μL of the working dilution of Streptavidin-HRP to each well. Cover the plate and incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Repeat the aspiration/wash as in step 2.
- Add 100 μL of Substrate Solution to each well. Incubate for 20 minutes at room temperature. Avoid placing the plate in direct light.
- Add 50 μL of Stop Solution to each well. Gently tap the plate to ensure thorough mixing.
- Determine the optical density of each well immediately, using a microplate reader set to 450 nm. If wavelength correction is available, set to 540 nm or 570 nm. If wavelength correction is not available, subtract readings at 540 nm or 570 nm from the readings at 450 nm. This subtraction will correct for optical imperfections in the plate. Readings made directly at 450 nm without correction may be higher and less accurate.
Citations for Human IL-24 DuoSet ELISA
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.
9
Citations: Showing 1 - 9
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A new insight into the role of aryl hydrocarbon receptor (AhR) in the migration of glioblastoma by AhR-IL24 axis regulation
Authors: Y Liu, Y Chen, R Sha, Y Li, T Xu, X Hu, L Xu, Q Xie, B Zhao
Environment international, 2021-05-31;154(0):106658.
Species: Human
Sample Types: Cell Culture Supernates
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IL-24 deficiency protects mice against bleomycin-induced pulmonary fibrosis by repressing IL-4-induced M2 program in macrophages
Authors: LZ Rao, Y Wang, L Zhang, G Wu, L Zhang, FX Wang, LM Chen, F Sun, S Jia, S Zhang, Q Yu, JH Wei, HR Lei, T Yuan, J Li, X Huang, B Cheng, J Zhao, Y Xu, BW Mo, CY Wang, H Zhang
Cell Death Differ, 2020-11-03;0(0):.
Species: Mouse
Sample Types: Serum
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Diminished circulating plasma and elevated lymph node culture supernatant levels of IL-10 family cytokines in tuberculous lymphadenitis
Authors: GR Kathamuthu, NP Kumar, K Moideen, D Baskaran, S Hissar, BM Shrinivasa, R Sridhar, S Babu
Cytokine, 2018-06-02;0(0):.
Species: Human
Sample Types: Plasma
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The Stimulation of Macrophages with TLR Ligands Supports Increased IL-19 Expression in Inflammatory Bowel Disease Patients and in Colitis Models
Authors: A Steinert, I Linas, B Kaya, M Ibrahim, A Schlitzer, P Hruz, K Radulovic, L Terraccian, AJ Macpherson, JH Niess
J. Immunol., 2017-09-01;0(0):.
Species: Human
Sample Types: Serum
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Expansion of parasite-specific CD4+ and CD8+ T cells expressing IL-10 superfamily cytokine members and their regulation in human lymphatic filariasis.
Authors: Anuradha R, George P, Hanna L, Kumaran P, Chandrasekaran V, Nutman T, Babu S
PLoS Negl Trop Dis, 2014-04-03;8(4):e2762.
Species: Human
Sample Types: Cell Culture Supernates
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T cell-derived microvesicles induce mast cell production of IL-24: relevance to inflammatory skin diseases.
Authors: Shefler I, Pasmanik-Chor M, Kidron D, Mekori Y, Hershko A
J Allergy Clin Immunol, 2013-06-12;133(1):217-24.e1-3.
Species: Human
Sample Types: Cell Culture Supernates
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Enhanced tumor suppression by an ING4/IL-24 bicistronic adenovirus-mediated gene cotransfer in human non-small cell lung cancer cells.
Authors: Zhu Y, Lv H, Xie Y
Cancer Gene Ther., 2011-06-10;18(9):627-36.
Species: Human
Sample Types: Cell Culture Supernates
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IL-17 and IL-22 mediate IL-20 subfamily cytokine production in cultured keratinocytes via increased IL-22 receptor expression.
Authors: Tohyama M, Hanakawa Y, Shirakata Y, Dai X, Yang L, Hirakawa S, Tokumaru S, Okazaki H, Sayama K, Hashimoto K
Eur. J. Immunol., 2009-10-01;39(10):2779-88.
Species: Human
Sample Types: Cell Culture Supernates
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IL-24 modulates IFN-gamma expression in patients with tuberculosis.
Authors: Wu B, Huang C, Kato-Maeda M, Hopewell PC, Daley CL, Krensky AM, Clayberger C
Immunol. Lett., 2007-12-26;117(1):57-62.
Species: Human
Sample Types: Cell Culture Supernates
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