The C8.6 antibody reacts with human IL-12 p40 monomers, homodimers, and p70 heterodimers, but not p35 subunits. The immunogen used to generate the C8.6 hybridoma was the purified p40 subunit of human IL-12. The C8.6 antibody is a neutralizing antibody and has been reported to strongly inhibit three different biological activities of IL-12 (i.e., IFN-γ induction), mitogenic effects on PHA blasts, and enhancement of NK cell-mediated cytotoxicity. C8.6 has been shown to immunoprecipitate IL-23. This antibody is routinely tested by ELISA as a detection antibody. Other applications were tested during antibody development only or reported in the literature. Human IL-12 p70 Protein Quantitation by ELISA. Rat anti-human IL-12 p70 specific antibody 20C2 (Cat. No. 555065) was paired with a biotinylated anti-IL-12 p40/p70 detection (Cat. No. 554660) to measure specifically human IL-12 p70 protein, using recombinant human IL-12 p70 (Cat. No. 554613), as the ELISA standard.
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Handling Advice
The antibody was conjugated with biotin under optimum conditions, and unreacted biotin was removed.
Storage
4 °C
Storage Comment
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Oppmann, Lesley, Blom, Timans, Xu, Hunte, Vega, Yu, Wang, Singh, Zonin, Vaisberg, Churakova, Liu, Gorman, Wagner, Zurawski, Liu, Abrams, Moore, Rennick, de Waal-Malefyt, Hannum, Bazan, Kastelein: "Novel p19 protein engages IL-12p40 to form a cytokine, IL-23, with biological activities similar as well as distinct from IL-12." in: Immunity, Vol. 13, Issue 5, pp. 715-25, (2001) (PubMed).
DAndrea, Rengaraju, Valiante, Chehimi, Kubin, Aste, Chan, Kobayashi, Young, Nickbarg: "Production of natural killer cell stimulatory factor (interleukin 12) by peripheral blood mononuclear cells." in: The Journal of experimental medicine, Vol. 176, Issue 5, pp. 1387-98, (1992) (PubMed).