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Detection of IL-5 expression by stimulated human CD4+ T cells. Isolated human CD4+ cells were stimulated with immobilized anti-human CD3 (1 µg/ml final concentration; UCHT1, Cat. No. 555329), soluble anti-human CD28.2 antibody (20 ng/ml final concentration; Cat. No. 555725), recombinant human IL-2 (10 ng/ml final concentration; Cat. No. 554603) and recombinant human IL-4 (10 ng/ml final concentration; Cat. No. 554605) for 2 days. The cells were subsequently cultured in medium containing recombinant human IL-2 and recombinant human IL-4 for 3 days. The cells were then harvested and restimulated for 6 hours with PMA (Sigma, Cat. No. P-8139) and calcium ionophore A23187 (Sigma, Cat. No. C-9275) in the presence of BD GolgiStop™ (2 µM final concentration; Cat. No. 554724). Finally, the cells were harvested, stained with 0.25 µg of PE-Cy5 anti-CD4 (PE-CY5-RPA-T4, Cat. No. 555348), fixed, permeabilized, and subsequently stained with 0.12 µg of PE-conjugated rat anti-human IL-5 (PE-JES1-39D10, Cat. No. 554489) by using BD Biosciences Pharmingen's staining protocol (left panel). To demonstrate specificity of staining, the binding of PE-JES1-39D10 antibody was blocked by the preincubation of the conjugated antibody with recombinant human IL-5 (0.1 µg; Cat. No. 554606; middle panel), and by preincubation of the fixed/permeabilized cells with unlabeled JES1-39D10 antibody (5 µg, Cat. No. 554487; right panel) prior to staining with the PE-JES1-39D10 antibody. The quadrant markers for the bivariate dot plots were set based on the autofluorescence control and verified with the recombinant cytokine blocking and unlabeled antibody blocking specificity controls.
BD Pharmingen™ PE Rat Anti-Human IL-5
Regulatory Status Legend
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation And Storage
Recommended Assay Procedures
Immunofluorescent Staining and Flow Cytometric Analysis: The JES1-39D10 antibody is useful for immunofluorescent staining and flow cytometric analysis to identify and enumerate human IL-5 producing cells within mixed cell populations. The PE-conjugated JES1-39D10 antibody (Cat. No. 554489) is especially suitable for these experiments (see Figure). For optimal immunofluorescent staining and flow cytometric analysis, this anti-cytokine antibody should be titrated (≤ 0.5 µg mAb/million cells). For specific methodology, please visit the protocols section or chapter on intracellular staining in the Immune Function Handbook, both of which are posted on our web site, www.bdbiosciences.com.
A useful control for demonstrating specificity of staining is either of the following: 1) pre-block the PE-JES1-39D10 antibody with excess ligand (human IL-5 , Cat. No. 554606) prior to staining, or 2) pre-block paraformaldehyde-fixed/saponin-permeabilized cells with unlabeled JES1-39D10 antibody (Cat. No. 554488) prior to staining. The intracellular staining technique and use of blocking controls are described in detail by C. Prussin and D. Metcalfe. A suitable rat IgG2a isotype control immunoglobulin for assessing the level of background staining on paraformaldehyde-fixed/saponin-permeabilized mouse or human cells is the PE-R35-95 antibody (Cat. No. 554689); use at comparable concentrations to antibody of interest.
ELISA Capture: The purified JES1-39D10 antibody (Cat. No. 554488) is useful as a capture antibody for a sandwich ELISA for measuring human IL-5 protein levels.
WB: The purified JES1-39D10 antibody (Cat. No. 554487) has been found useful for Western blotting. Please note that this application is not routinely tested at BD Biosciences Pharmingen.
Product Notices
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
Companion Products
The JES1-39D10 antibody reacts with human interleukin-5 (IL-5). The immunogen used to generate the JES1-39D10 hybridoma was COS-expressed recombinant human IL-5. This is a neutralizing antibody.
Development References (7)
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Abrams JS, Roncarolo MG, Yssel H, Andersson U, Gleich GJ, Silver JE. Strategies of anti-cytokine monoclonal antibody development: immunoassay of IL-10 and IL-5 in clinical samples. Immunol Rev. 1992; 127:5-24. (Clone-specific: ELISA). View Reference
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Abrams JS, Silver JE, Van Dyke RE, Gleich GI. Eosinophil-active cytokines in human disease: development and use of monoclonal antibodies to IL-3, IL-5 and GMCSF. In: Gleich GJ and Kay AB, ed. Eosinophils in Allergy and Inflammation. New York: Dekker; 1994:133-157.
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Butterfield JH, Leiferman KM, Abrams J, et al. Elevated serum levels of interleukin-5 in patients with the syndrome of episodic angioedema and eosinophilia. Blood. 1992; 79(3):688-692. (Clone-specific: ELISA). View Reference
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Elson LH, Nutman TB, Metcalfe DD, Prussin C. Flow cytometric analysis for cytokine production identifies T helper 1, T helper 2, and T helper 0 cells within the human CD4+CD27- lymphocyte subpopulation. J Immunol. 1995; 154(9):4294-4301. (Clone-specific: Flow cytometry). View Reference
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Jung T, Schauer U, Rieger C, et al. Interleukin-4 and interleukin-5 are rarely co-expressed by human T cells. Eur J Immunol. 1995; 25(8):2413-2416. (Clone-specific: Flow cytometry). View Reference
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Limaye AP, Abrams JS, Silver JE, et al. Interleukin-5 and the posttreatment eosinophilia in patients with onchocerciasis. J Clin Invest. 1991; 88(4):1418-1421. (Clone-specific). View Reference
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Prussin C, Metcalfe DD. Detection of intracytoplasmic cytokine using flow cytometry and directly conjugated anti-cytokine antibodies. J Immunol Methods. 1995; 188(1):117-128. (Methodology: IC/FCM Block). View Reference
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For Research Use Only. Not for use in diagnostic or therapeutic procedures.