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Purified NA/LE Rat Anti-Human IL-5
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BD Pharmingen™
EDF; Eosinophil differentiation factor; TRF; T-cell replacing factor
Human (QC Testing)
Rat IgG2a
Recombinant Human IL-5
ELISA (Routinely Tested), ELISPOT, Neutralization (Reported)
1.0 mg/ml
No azide/low endotoxin: Aqueous buffered solution containing no preservative, 0.2µm sterile filtered. Endotoxin level is ≤0.01 EU/µg (≤0.001 ng/µg) of protein as determined by the LAL assay.


Store undiluted at 4°C. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. This preparation contains no preservatives, thus it should be handled under aseptic conditions.


  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to for technical protocols.
562175 Rev. 1
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The JES1-5A10 monoclonal antibody specifically binds to the human Interleukin-5 (IL-5). IL-5 is a cytokine that is also known as T-cell replacing factor (TRF), Eosinophil differentiation factor (EDF), and B cell differentiation factor I. IL-5 is produced by T cells, mast cells, and eosinophils. IL-5 controls the generation, differentiation, activation and localization of eosinophils. IL-5 also activates and promotes the differentiation of basophils. IL-5 plays an important role in regulating cell-mediated immunity against parasitic infections and some tumors. High level IL-5 production is involved in some allergic diseases including asthma. IL-5 exerts its biological effects by binding to and signaling through high-affinity heterodimeric IL-5 receptors comprised of transmembrane IL-5 receptor alpha (IL-5Rα, aka, CD125) and beta common (βc, aka, CD131) chains. The βc chain serves as the common signaling subunit for the IL-5 receptor heterodimer as well as for the heterodimeric IL-3 and GM-CSF receptors. The immunogen used to generate the JES1-5A10 hybridoma was recombinant human IL-5. The JES1-5A10 antibody has been reported to cross react with IL-5 from rhesus monkey. This is a neutralizing antibody.

562175 Rev. 1
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NA/LE refers to the culture and purification methods and buffer used to produce purified antibodies with no azide and low endotoxin: Aqueous buffered solution containing no preservative, 0.2µm sterile filtered. Endotoxin level is ≤0.01 EU/µg (≤0.001 ng/µg) of protein as determined by the LAL assay.NA/LE are perfectly suited to be used in culture or in vivo (for nonhuman studies) for functional assays — blocking, neutralizing, activation or depletion — where the presence of azide may damage cells or exogenous endotoxin may signal or activate cells.
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研发参考 (6)

  1. 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: Neutralization). 查看参考
  2. 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.
  3. 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, Neutralization). 查看参考
  4. Fuss IJ, Neurath M, Boirivant M, et al. Disparate CD4+ lamina propria (LP) lymphokine secretion profiles in inflammatory bowel disease. Crohn's disease LP cells manifest increased secretion of IFN-gamma, whereas ulcerative colitis LP cells manifest increased secretion of IL-5. J Immunol. 1996; 157(3):1261-1270. (Clone-specific: ELISPOT). 查看参考
  5. Klinman D and Nutman T. ELISPOT assay to detect cytokine-secreting murine and human cells. In: Coligan J, Kruisbeek A, Margulies D, Shevach E, Strober W, ed. Current Protocols in Immunology. 1994:6-19.
  6. Schwenger G, Mordvinov V, Fournier R, Czabotar P, Peroni S, Sanderson C. IL-5. In: Oppenheim JJ, Feldmann M, Durum SK. editors in chief, Joost J. Oppenheim, Marc Feldman ; editors, Scott K. Durum .. et al., ed. Cytokine reference : a compendium of cytokines and other mediators of host defense. London: Academic Press; 2001:861-875.
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562175 Rev. 1

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Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.