Human IL-12 p70 Antibody

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Human IL-12 p70 Antibody in Data
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Product Details
Citations (18)
Supplemental Products
Reviews (2)

Human IL-12 p70 Antibody Summary

Species Reactivity
Detects human IL-12 p70 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) IL-12 p40 homodimer or rhIL-23 is observed.
Monoclonal Mouse IgG1 Clone # 24910
Protein A or G purified from hybridoma culture supernatant
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-12 p70
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Human IL‑12 (Catalog # 219-IL)
under non-reducing conditions only
8-25 µg/mL
See below
Measured by its ability to neutralize IL‑12 p70-induced proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC). Stern, A. S. et al. (1990) Proc. Natl. Acad. Sci. USA 87:6808. The Neutralization Dose (ND50) is typically 0.3-0.9 µg/mL in the presence of 1 ng/mL Recombinant Human IL‑12.

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.

Data Examples

Immunohistochemistry IL‑12 p70 in Human Kidney. View Larger

IL‑12 p70 in Human Kidney. IL-12 p70 was detected in immersion fixed paraffin-embedded sections of human spleen using Mouse Anti-Human IL-12 p70 Monoclonal Antibody (Catalog # MAB219) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membrane and cytoplasm. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Neutralization Cell Proliferation Induced by IL‑12 and Neutralization by Human IL‑12 p70 Antibody. View Larger

Cell Proliferation Induced by IL‑12 and Neutralization by Human IL‑12 p70 Antibody. Recombinant Human IL-12 (Catalog # 219-IL) stimulates proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC) in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-12 (1 ng/mL) is neutralized (green line) by increasing concentrations of Human IL-12 p70 Monoclonal Antibody (Catalog # MAB219). The ND50is typically 0.3-0.9 µg/mL.

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.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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-12 p70

Interleukin 12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a pleiotropic cytokine originally identified in the medium of activated human B lymphoblastoid cell lines. Biologically active IL-12 is a disulfide-linked, 70 kDa (p70) heterodimeric glycoprotein composed of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit.The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the human IL-6 receptor while the p35 subunit shows distant but significant sequence similarity to IL-6, G-CSF, and chicken MGF. These observations have led to the suggestion that IL-12 might have evolved from a cytokine/soluble receptor complex. Human and murine IL-12 share 70% and 60% amino acid sequence homology in their p40 and p35 subunits, respectively. IL-12 apparently shows species specificity with human IL-12 reportedly showing minimal activity in the murine system. IL-12 is produced by macrophages and B lymphocytes and has been shown to have multiple effects on T cells and natural killer (NK) cells. These effects include inducing production of IFN-gamma and TNF by resting and activated T and NK cells, synergizing with other IFN-gamma inducers at both the transcriptional and post-transcriptional levels. This interaction induces IFN-gamma gene expression, enhancing the cytotoxic activity of resting NK and T cells, inducing and synergizing with IL-2 in the generation of lymphokine-activated killer (LAK) cells, acting as a co-mitogen to stimulate proliferation of resting T cells, and inducing proliferation of activated T and NK cells. Current evidence indicates that IL-12, produced by macrophages in response to infectious agents, is a central mediator of the cell-mediated immune response by its actions on the development, proliferation, and activities of TH1 cells. In its role as the initiator of cell-mediated immunity, it has been suggested that IL-12 has therapeutic potential as a stimulator of cell-mediated immune responses to microbial pathogens, metastatic cancers, and viral infections such as AIDS.

Long Name
Interleukin 12 p70
Entrez Gene IDs
3592 (Human); 16159 (Mouse); 84405 (Rat)
Alternate Names
CLMF p35; Cytotoxic lymphocyte maturation factor 35 kDa subunit; IL12 p70; IL-12 p70; IL-12 subunit p35; IL-12, subunit p35; interleukin 12, p35; interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocytematuration factor 1, p35); interleukin-12 alpha chain; interleukin-12 subunit alpha; natural killer cell stimulatory factor 1, 35 kD subunit; NF cell stimulatory factor chain 1; NK cell stimulatory factor chain 1; NKSF1; p35

Product Datasheets

Citations for Human IL-12 p70 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.

18 Citations: Showing 1 - 10
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  1. MR1-Independent Activation of Human Mucosal-Associated Invariant T Cells by Mycobacteria
    Authors: S Suliman, M Murphy, M Musvosvi, A Gela, EW Meermeier, H Geldenhuys, C Hopley, A Toefy, N Bilek, A Veldsman, WA Hanekom, JL Johnson, WH Boom, G Obermoser, H Huang, M Hatherill, DM Lewinsohn, E Nemes, TJ Scriba
    J. Immunol., 2019;0(0):.
    Species: Human
    Sample Types: Whole Blood
    Applications: Neutralization
  2. IL-1?, IL-4 and IL-12 control the fate of group 2 innate lymphoid cells in human airway inflammation in the lungs
    Authors: SM Bal, JH Bernink, M Nagasawa, J Groot, MM Shikhagaie, K Golebski, CM van Drunen, R Lutter, RE Jonkers, P Hombrink, M Bruchard, J Villaudy, JM Munneke, W Fokkens, JS Erjefält, H Spits, XR Ros
    Nat Immunol, 2016;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  3. Bacillus Calmette-Gu�rin (BCG) Revaccination of Adults with Latent Mycobacterium tuberculosis Infection Induces Long-Lived BCG-Reactive NK Cell Responses
    J Immunol, 2016;0(0):.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  4. A Subset of Latency-Reversing Agents Expose HIV-Infected Resting CD4+ T-Cells to Recognition by Cytotoxic T-Lymphocytes
    Authors: RB Jones, S Mueller, R O'Connor, K Rimpel, DD Sloan, D Karel, HC Wong, EK Jeng, AS Thomas, JB Whitney, SY Lim, C Kovacs, E Benko, S Karandish, SH Huang, MJ Buzon, M Lichterfel, A Irrinki, JP Murry, A Tsai, H Yu, R Geleziunas, A Trocha, MA Ostrowski, Irvi
    PLoS Pathog, 2016;12(4):e1005545.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  5. Enhanced immune response of MAIT cells in tuberculous pleural effusions depends on cytokine signaling
    Sci Rep, 2016;6(0):32320.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  6. The long intergenic noncoding RNA landscape of human lymphocytes highlights the regulation of T cell differentiation by linc-MAF-4.
    Authors: Ranzani, Valeria, Rossetti, Grazisa, Panzeri, Ilaria, Arrigoni, Alberto, Bonnal, Raoul J, Curti, Serena, Gruarin, Paola, Provasi, Elena, Sugliano, Elisa, Marconi, Maurizio, De Francesco, Raffaele, Geginat, Jens, Bodega, Beatrice, Abrignani, Sergio, Pagani, Massimil
    Nat Immunol, 2015;16(3):318-25.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  7. Toll-like receptor 8 agonist and bacteria trigger potent activation of innate immune cells in human liver.
    Authors: Jo J, Tan A, Ussher J, Sandalova E, Tang X, Tan-Garcia A, To N, Hong M, Chia A, Gill U, Kennedy P, Tan K, Lee K, De Libero G, Gehring A, Willberg C, Klenerman P, Bertoletti A
    PLoS Pathog, 2014;10(6):e1004210.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  8. IL-1 Family Members IL-18 and IL-33 Upregulate the Inflammatory Potential of Differentiated Human Th1 and Th2 Cultures.
    Authors: Blom L, Poulsen L
    J Immunol, 2012;189(9):4331-7.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  9. Normally occurring NKG2D+CD4+ T cells are immunosuppressive and inversely correlated with disease activity in juvenile-onset lupus.
    Authors: Dai Z, Turtle CJ, Booth GC, Riddell SR, Gooley TA, Stevens AM, Spies T, Groh V
    J. Exp. Med., 2009;206(4):793-805.
    Species: Human
    Sample Types: Whole Cells
    Applications: Blocking
  10. Expression of soluble vascular endothelial growth factor receptor-1 in human monocyte-derived mature dendritic cells contributes to their antiangiogenic property.
    Authors: Kishuku M, Nishioka Y, Abe S, Kishi J, Ogino H, Aono Y, Azuma M, Kinoshita K, Batmunkh R, Rentsenhand B, Makino H, Ranjan P, Minakuchi K, Sone S
    J. Immunol., 2009;183(12):8176-85.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  11. Development of an in vitro potency bioassay for therapeutic IL-13 antagonists: the A-549 cell bioassay.
    Authors: Miller R, Sadhukhan R, Wu C
    J. Immunol. Methods, 2008;334(1):134-41.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  12. In vivo blockade of OX40 ligand inhibits thymic stromal lymphopoietin driven atopic inflammation.
    Authors: Seshasayee D, Lee WP, Zhou M, Shu J, Suto E, Zhang J, Diehl L, Austin CD, Meng YG, Tan M, Bullens SL, Seeber S, Fuentes ME, Labrijn AF, Graus YM, Miller LA, Schelegle ES, Hyde DM, Wu LC, Hymowitz SG, Martin F
    J. Clin. Invest., 2007;117(12):3868-3878.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  13. Impairment of human NK cell cytotoxic activity and cytokine release by cigarette smoke.
    Authors: Mian MF, Lauzon NM, Stampfli MR, Mossman KL, Ashkar AA
    J. Leukoc. Biol., 2007;83(3):774-84.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  14. Increased expression of Th2-associated chemokines in bullous pemphigoid disease. Role of eosinophils in the production and release of these chemokines.
    Authors: Gounni Abdelilah S, Wellemans V, Agouli M, Guenounou M, Hamid Q, Beck LA, Lamkhioued B
    Clin. Immunol., 2006;120(2):220-31.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  15. The Toll-like receptor-2/6 agonist macrophage-activating lipopeptide-2 cooperates with IFN-gamma to reverse the Th2 skew in an in vitro allergy model.
    Authors: Weigt H, Muhlradt PF, Larbig M, Krug N, Braun A
    J. Immunol., 2004;172(10):6080-6.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  16. Expression of toll-like receptors 2 and 4 in rheumatoid synovial tissue and regulation by proinflammatory cytokines interleukin-12 and interleukin-18 via interferon-gamma.
    Authors: Radstake TR, Roelofs MF, Jenniskens YM, van Riel PL, Barrera P
    Arthritis Rheum., 2004;50(12):3856-65.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  17. NK cell activation by dendritic cells (DCs) requires the formation of a synapse leading to IL-12 polarization in DCs.
    Authors: Borg C, Jalil A, Laderach D, Maruyama K, Wakasugi H, Charrier S, Ryffel B, Cambi A, Figdor C, Vainchenker W, Galy A, Caignard A, Zitvogel L
    Blood, 2004;104(10):3267-75.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC
  18. In human B cells, IL-12 triggers a cascade of molecular events similar to Th1 commitment.
    Authors: Durali D, de Goer de Herve MG, Giron-Michel J, Azzarone B, Delfraissy JF, Taoufik Y
    Blood, 2003;102(12):4084-9.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC


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Human IL-12 p70 Antibody
By Anonymous on 05/17/2017
Application: ELISA Sample Tested: Blood mononuclear cells (PBMCs) Species: Human

Human IL‑12 p70 Antibody
By Anonymous on 04/26/2017