Description
1. ELISA Standard: Recombinant human IL-8 is useful as a quantitative standard for measuring human IL-8 protein levels in an IL-8 specific sandwich ELISA with the purified G265-5 antibody (Cat. No. 554716) as a capture antibody and the biotinylated G265-8 (Cat. No. 554718) as the detection antibody. To obtain linear standard curves, doubling dilutions of this human IL-8 standard from 500-4 pg/ml should be included in each ELISA plate. For specific methodology, please visit the protocols section or chapter on ELISA in the Immune Function Handbook, both of which are posted on our website, www.bdbiosciences.com. Note: This ELISA pair is recommended primarily for measuring cytokine from experimental cell culture systems. These ELISA reagents are not recommended for assaying serum or plasma samples. For measuring human IL-8 in serum or plasma the BD OptEIA™ human IL-8 ELISA Set (Cat. No. 555244) and OptEIA™ human IL-8 ELISA Kit (Cat. No. 550999) are specially formulated and recommended. 2. Representative Biological Activity: Measured Calcium flux using lysed whole blood. The ED50 for these effects is typically 0.15 - 0.30 µg/ml or 0.1 -0.5 ng/ml respectively. Please note that this application is not routinely tested at BD Biosciences. 3. Ligand Blocking Control for Immunofluorescent Staining of Cytokines: Recombinant human IL-8 can be used as a blocking control to demonstrate specificity of IL-8 staining by the directly conjugated G265-8 antibody (Cat. No. 554720). The intracellular cytokine staining technique and use of blocking controls are described in detail by C. Prussin and D. Metcalfe. For specific methodology, please visit please visit the protocols section or chapter on intracellular staining in the Immune Function Handbook, both of which are posted on our web site, www.bdbiosciences.com. *Note: Carrier proteins should be pre-screened for possible effects in an appropriate experimental system. Carrier proteins may effect experimental results due to toxicity, high endotoxin levels or possible blocking activity.
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. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
3. IL-8 is protected under U.S. Patent Nos. 5,652,338 and 5,698,196.
4. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
