• PN: A111185


45x Ab-conjugated beads (S4P9 - human IL-9 Ab-bead).PN: A111185A. One vial containing 100 µL of anti-human IL-9 conjugated to AimPlex Bead S4P9

25x Biotin-detection Ab (human IL-9 Biotin-dAb).PN: A111185B. One vial containing 100 µL of biotinylated anti-human IL-9.

Lyophilized Standard Mix-Human Group 3 Panel B, 12-Plex. PN: HG3012B. One vial containing lyophilized recombinant human IL-9, IL-15, IL-16, IL-17C, IL-23p19, IL-24, IL-27, IL-31, IL-32, IL-34, OSM, and SCF.  Note: If multiple analyte kits on the above target list are ordered as a panel, only one vial of standard mix is supplied for those analyte kits.

STORAGE:  2-8 C in the dark.

IMPORTANT: Sodium azide forms explosive compounds with heavy metals. These products contain <0.05% (w/w) azide which with repeated contact with lead and copper commonly found in plumbing drains may result in the buildup of shock sensitive compounds. Dispose in accordance with regulations from your institute.

APPLICATION: Optimal antibody pair and antigen standard for assaying human IL-9.  Can be multiplexed with other analytes in Human Group 3.  To be used in conjunction with the AimPlex NR Basic Kit (PN: P100001) and a diluent kit. Refer to the AimPlex Multiplex Immunoassay User Manual and kit inserts for the assay procedure.

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

Assay Specifications:

Sample types: Cell culture supernatant, serum, plasma, bodily fluid and tissue/cell lysate

Sensitivity (LOD): < 5 pg/mL

Quantitation range:

LLOQ: < 10 pg/mL

ULOQ: > 5,000 pg/mL

Standard dose recovery: 70-130%

Intra-assay CV: < 10%

Inter-assay CV: < 20%

Cross-reactivity of analytes in Human Group 3: Negligible

Sample volume: 15 µL/test


Interleukin 9 (IL-9) is a cytokine produced by T-cells and specifically by CD4+ helper cells that acts as a regulator of a variety of hematopoietic cells. This cytokine stimulates cell proliferation and prevents apoptosis. It functions through the interleukin-9 receptor (IL9R), which activates different signal transducer and activator (STAT) proteins and thus connects this cytokine to various biological processes. The gene encoding this cytokine has been identified as a candidate gene for asthma. Genetic studies on a mouse model of asthma demonstrated that this cytokine is a determining factor in the pathogenesis of bronchial hyper-responsiveness. Interleukin-9 has also shown to inhibit melanoma growth in mice.


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2.      Renauld JC, Houssiau F, Louahed J, et al. (1993). "Interleukin-9". Adv. Immunol. Advances in Immunology 54: 79–97. doi:10.1016/S0065-2776(08)60533-7. ISBN 978-0-12-022454-8. PMID 8379467.

3.      Knoops L, Renauld JC (2005). "IL-9 and its receptor: from signal transduction to tumorigenesis". Growth Factors 22 (4): 207–15. doi:10.1080/08977190410001720879. PMID 15621723.

4.      Toda M, Tulic MK, Levitt RC, Hamid Q (2002). "A calcium-activated chloride channel (HCLCA1) is strongly related to IL-9 expression and mucus production in bronchial epithelium of patients with asthma". J. Allergy Clin. Immunol. 109 (2): 246–50. doi:10.1067/mai.2002.121555. PMID 11842292.