Anti-Human IL-12

Purified Recombinant Human IL-12 (>98%)

This antigen affinity purified polyclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 containing 5.0% w/v trehalose with no calcium, magnesium, or preservatives present.

Lyophilized

The lyophilized antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for twelve months from date of receipt. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. No detectable loss of activity was observed after six months.

Next Day Ambient

Immunocytochemistry: Suitable for use at concentration of 5-15 µg/mL.
Neutralization: This antibody is useful for neutralization of Human IL-12 bioactivity. The antibody dose required to neutralize 50% (ND₅₀) of the biological activity of Human IL-12 (at 1.0 ng/ml) is 0.03 - 0.05 µg/ml.

Goat Anti-Human Interleukin-12 (IL-12) recognizes Human IL-12. This antigen affinity purified polyclonal antibody was purified using a proprietary chromatographic technique that includes covalently immobilizing the antigen proteins or peptides to agarose based beads. This purification method enhances specificity, reduces nonspecific binding of extraneous IgG and provides you with the most reliable reagent available for your early discovery research.

IL-12 plays a role in resistance against pathogens via the differentiation of naive T cells into Th1 cells. It stimulates the growth and function of T cells, blocks formation of new blood vessels, and contributes to antimycobacterial immune response. In addition, it promotes the production of IFN-γ and TNF-α and reduces IL-4 mediated suppression of IFN-γ. Consequently, this enhances the immunostimulatory and immunomodulatory effects of IFN-γ. In addition, there appears to be a link between IL-2 and the signal transduction of IL-12 in NK cells, which enhances the functional response of IL-12 via IFN-γ production and killing of target cells. Furthermore, IL-12 is thought to be associated with autoimmunity. IL-12 was shown to worsen the condition when administered to people already suffering from autoimmune diseases. Comparatively, inhibition of IL-12 (either through IL-12 gene knock-out in mice or treatment of mice with IL-12 mAbs) improved the disease.

1. Kapsenberg, ML. et al. (1997) J. Immunol. 159: 28
2. Ritz, J. et al. (2001) Blood. 97(12):3860-6.
3. Barnes, PF. et al. (1994) J Clin Invest. 93(4):1733-9.