96 Tests PN: B111164
Components:
45x Ab-conjugated beads (S4P5 - human IL-23 Ab-bead). PN: B111164A. One vial containing 100 µL of anti-human IL-23p40 conjugated to AimPlex Bead S4P5.
25x Biotin-detection Ab (human IL-23p19 Biotin-dAb). PN: B111164B. One vial containing 100 µL of biotinylated anti-human IL-23p19.
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.
Application: Optimal antibody pair and antigen standard for assaying human IL-23p19. 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.
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.
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
Description:
Interleukin-23 (IL-23) also known as IL-23 alpha subunit p19 (IL-23p19 or IL-23A), is a heterodimeric cytokine composed of an IL-12p40 subunit that is shared with IL-12 and the IL-23p19 subunit. Prior to the discovery of IL-23, IL-12 had been proposed to represent a key mediator of inflammation in mouse models of inflammation. However, many studies aimed at assessing the role of IL-12 had blocked the activity of IL-12p40, and were therefore not as specific as thought. Studies which blocked the function of IL-12p35 did not produce the same results as those targeting IL-12p40 as would have been expected if both subunits formed part of IL-12 only. Seminal studies in experimental autoimmune encephalomyelitis, a mouse model of multiple sclerosis, showed that IL-23 was responsible for the inflammation observed. IL-23 has shown to facilitate development of inflammation in numerous other models of immune pathology where IL-12 had previously been implicated including models of arthritis, intestinal inflammation, and psoriasis. Diseases associated with IL23A include colitis.
References:
Oppmann B, Lesley R, Blom B, Timans JC, Xu Y, Hunte B, Vega F, Yu N, Wang J, Singh K, Zonin F, Vaisberg E, Churakova T, Liu M, Gorman D, Wagner J, Zurawski S, Liu Y, Abrams JS, Moore KW, Rennick D, de Waal-Malefyt R, Hannum C, Bazan JF, Kastelein RA (Jan 2001). "Novel p19 protein engages IL-12p40 to form a cytokine, IL-23, with biological activities similar as well as distinct from IL-12". Immunity 13 (5): 715–25. doi:10.1016/S1074-7613(00)00070-4. PMID 11114383.
Parham C, Chirica M, Timans J, Vaisberg E, Travis M, Cheung J, Pflanz S, Zhang R, Singh KP, Vega F, To W, Wagner J, O'Farrell AM, McClanahan T, Zurawski S, Hannum C, Gorman D, Rennick DM, Kastelein RA, de Waal Malefyt R, Moore KW (2000). "A receptor for the heterodimeric cytokine IL-23 is composed of IL-12Rbeta1 and a novel cytokine receptor subunit, IL-23R". Journal of Immunology 168 (11): 5699–708. doi:10.4049/jimmunol.168.11.5699. PMID 12023369.
Leonard JP, Waldburger KE, Goldman SJ (Jan 1995). "Prevention of experimental autoimmune encephalomyelitis by antibodies against interleukin 12". Journal of Experimental Medicine 181 (1): 381–6. doi:10.1084/jem.181.1.381. PMID 7528773.