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Human IL-23 p19 Antibody

Catalog #: AF1716
12 Citations Datasheet / COA / SDS
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AF1716
AF1716-SP
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IL‑17 Secretion Induced by IL‑23 and Neutralization by Human IL‑23 Antibody.
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Citations (12)
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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human IL-23 p19 Antibody Summary

Species Reactivity
Human
Specificity
Detects human IL‑23 p19 in direct ELISA and Western blot. In direct ELISA, approximately 50% cross-reactivity with recombinant canine
IL-23p19, less then 25% cross-reactivity with recombinant feline IL-23p19, less than 5% cross-reactivity with recombinant mouse IL-23p19, recombinant human IL-12p40, and recombinant rat IL-23p40 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant human IL‑23 p19
Arg20-Pro189
Accession # AAG37232
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
See below
Neutralization
Measured by its ability to neutralize IL‑23-induced IL‑17 secretion in mouse splenocytes. Aggarwal, S. et al. (2003) J. Biol. Chem. 278:1910. The Neutralization Dose (ND50) is typically 0.2-0.8 µg/mL in the presence of 0.75 ng/mL Recombinant Human IL‑23 and 10 ng/mL Recombinant Mouse IL‑2.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Neutralization IL‑17 Secretion Induced by IL‑23 and Neutralization by Human IL‑23 Antibody. View Larger

IL‑17 Secretion Induced by IL‑23 and Neutralization by Human IL‑23 Antibody. In the presence of Recombinant Mouse IL-2 (10 ng/mL, Catalog # 402-ML), Recombinant Human IL-23 (Catalog # 1290-IL) stim-ulates IL-17 secretion in mouse splenocytes in a dose-dependent manner (orange line), as measured by the Mouse IL-17 Quantikine ELISA Kit (Catalog # M1700). Under these conditions, IL-17 secretion elicited by Recombinant Human IL-23 (0.75 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IL-23 p19 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1716). The ND50 is typically 0.2-0.8 µg/mL.

Western Blot Detection of human IL-23 p19 antibody by Western Blot. View Larger

Detection of human IL‑23 p19 by Western Blot. Western blot shows lysates of a CHO cell line transfected with human IL-23. A PVDF membrane was probed with 1 µg/mL of Goat Anti-Human IL-23 p19 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1716) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for IL-23 p19 at approximately 21 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IL-23

Interleukin 23 (IL-23) is a heterodimeric cytokine composed of two disulfide-linked subunits, a p19 subunit that is unique to IL-23, and a p40 subunit that is shared with IL-12. The p19 subunit has homology to the p35 subunit of IL-12, as well as to other single chain cytokines such as IL-6 and IL-11. The p40 subunit is homologous to the extracellular domains of the hematopoietic cytokine receptors. Human p19 cDNA encodes a 189 amino acid residue (aa) precursor protein with a putative 19 aa signal peptide and 170 aa mature protein. Human and mouse p19 share 70% aa sequence identity. Although p19 is expressed by activated macrophages, dendritic cells, T cells, and endothelial cells, only activated macrophages and dendritic cells express p40 concurrently to produce IL-23. The functional IL-23 receptor complex consists of two receptor subunits, the IL-12 receptor beta 1 subunit (IL-12 R beta 1) and the IL-23-specific receptor subunit (IL-23 R). IL-23 has biological activities that are similar to, but distinct from IL-12. Both IL-12 and IL-23 induce proliferation and IFN-gamma production by human T cells. While IL-12 acts on both naïve and memory human T cells, the effects of IL-23 is restricted to memory T cells. In mouse, IL-23 but not IL-12, has also been shown to induce memory T cells to secret IL-17, a potent proinflammatory cytokine. IL-12 and IL-23 can induce IL-12 production from mouse splenic DC of both the CD8- and CD8+ subtypes, however only IL-23 can act directly on CD8+ DC to mediate immunogenic presentation of poorly immunogenic tumor/self peptide.

Long Name
Interleukin 23
Entrez Gene IDs
51561 (Human); 83430 (Mouse); 155140 (Rat); 102128555 (Cynomolgus Monkey)
Alternate Names
IL-23 p19/IL-12 p40; IL23; IL-23; IL-23A; IL-23-A; IL-23p19; IL-23p19/IL-12p40; IL23P19P19; interleukin 23 p19 subunit; interleukin 23, alpha subunit p19; interleukin-23 subunit alpha; Interleukin-23 subunit p19; JKA3 induced upon T-cell activation; MGC79388; SGRF; SGRFIL-23 subunit alpha

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Citations for Human IL-23 p19 Antibody

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. Engineering of stable bispecific antibodies targeting IL-17A and IL-23
    Authors: Robert Mabry, Katherine E. Lewis, Margaret Moore, Patricia A. McKernan, Thomas R. Bukowski, Kristen Bontadelli et al.
    Protein Engineering, Design and Selection
  2. Fungal sensing by dectin-1 directs the non-pathogenic polarization of TH17 cells through balanced type I IFN responses in human DCs
    Authors: SI Gringhuis, TM Kaptein, EBM Remmerswaa, A Drewniak, BA Wevers, B Theelen, GRAM D'Haens, T Boekhout, TBH Geijtenbee
    Nature Immunology, 2022-12-01;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  3. Single-cell-level protein analysis revealing the roles of autoantigen-reactive B lymphocytes in autoimmune disease and the murine model
    Authors: T Fukasawa, A Yoshizaki, S Ebata, A Yoshizaki-, Y Asano, A Enomoto, K Miyagawa, Y Kazoe, K Mawatari, T Kitamori, S Sato
    Elife, 2021-12-02;10(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  4. Human prostate tumor antigen-specific CD8+ regulatory T cells are inhibited by CTLA-4 or IL-35 blockade.
    Authors: Olson B, Jankowska-Gan E, Becker J, Vignali D, Burlingham W, McNeel D
    J Immunol, 2012-11-14;189(12):5590-601.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  5. Pathogen-induced human TH17 cells produce IFN-gamma or IL-10 and are regulated by IL-1beta.
    Authors: Zielinski CE, Mele F, Aschenbrenner D, Jarrossay D, Ronchi F, Gattorno M, Monticelli S, Lanzavecchia A, Sallusto F
    Nature, 2012-04-26;484(7395):514-8.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  6. Influence of the Notch system in the therapeutic response of American tegumentary leishmaniasis.
    Authors: Rodrigues KM, Oliveira MP, Maretti-Mira AC, Oliveira-Neto MP, Mattos MS, Silva L, Soares DA, Dolci EL, Perico RA, Pirmez C
    Br. J. Dermatol., 2011-05-17;164(6):1228-34.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-Fr
  7. Delineation of a cellular hierarchy in lung cancer reveals an oncofetal antigen expressed on tumor-initiating cells.
    Authors: Damelin M, Geles KG, Follettie MT, Yuan P, Baxter M, Golas J, Dijoseph JF, Karnoub M, Huang S, Diesl V, Behrens C, Choe SE, Rios C, Gruzas J, Sridharan L, Dougher M, Kunz A, Hamann PR, Evans D, Armellino D, Khandke K, Marquette K, Tchistiakova L, Boghaert ER, Abraham RT, Wistuba II, Zhou BB
    Cancer Res., 2011-05-03;71(12):4236-46.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-Fr
  8. The tachykinins substance P and hemokinin-1 favor the generation of human memory Th17 cells by inducing IL-1beta, IL-23, and TNF-like 1A expression by monocytes.
    Authors: Cunin P, Caillon A, Corvaisier M, Garo E, Scotet M, Blanchard S, Delneste Y, Jeannin P
    J. Immunol., 2011-03-02;186(7):4175-82.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  9. TLR2-activated human langerhans cells promote Th17 polarization via IL-1beta, TGF-beta and IL-23.
    Authors: Aliahmadi E, Gramlich R, Grutzkau A, Hitzler M, Kruger M, Baumgrass R, Schreiner M, Wittig B, Wanner R, Peiser M
    Eur. J. Immunol., 2009-05-01;39(5):1221-30.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  10. IL-23 and IL-12 responses in activated human T cells retrovirally transduced with IL-23 receptor variants.
    Authors: de Paus RA, van de Wetering D, Van Dissel JT
    Mol. Immunol., 2008-09-01;45(15):3889-95.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  11. Blockade of TLR9 agonist-induced type I interferons promotes inflammatory cytokine IFN-gamma and IL-17 secretion by activated human PBMC.
    Authors: Meyers JA, Mangini AJ, Nagai T, Roff CF, Sehy D, van Seventer JM
    Cytokine, 2006-10-18;35(5):235-46.
    Species: Human
    Sample Types: Cell Culture Supernates
    Applications: ELISA Development
  12. IFN‐ gamma facilitates liver fibrogenesis by CD161+CD4+ T cells through a regenerative IL‐23/IL‐17 axis in chronic hepatitis B virus infection
    Authors: Jing Li, Lisha Cheng, Haoyu Jia, Chun Liu, Siqi Wang, Yun Liu et al.
    Clinical & Translational Immunology

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