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Human CD86 / B7-2 ELISA Pair Set

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Human B7-2/CD86 Materials provided
Capture Ab:0.5 mg/mL of rabbit anti-B7-2 monoclonal antibody, Dilute to a working concentration of 1 μg/mL in CBS before coating.
Detection Ab:0.5 mg/mL of rabbit anti-B7-2 monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 0.4 μg/mL in detection antibody dilution buffer before use.
Standard:Each vial contains 14 ng of recombinant B7-2. Reconstitute with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -80℃ in a manual defrost freezer. A seven-point standard curve usi ng 2-fold serial dilutions in sample dilution buffer, and a high standard of 300 pg/mL is recommended.
Human B7-2/CD86 Sensitivity
The minimum detectable dose of Human CD86 / B7-2 was determined to be approximately 4.68 pg/ml. This is defined as at least three times standard deviations above the mean optical density of 10 replicates of the zero standard.
Human B7-2/CD86 Principle of the product
The Human CD86 / B7-2 ELISA Pair Set is for the quantitative determination of Human CD86 / B7-2.
This ELISA Pair Set contains the basic components required for the development of sandwich ELISAs.
The Sino Biological ELISA Pair Set is a solid phase sandwich ELISA (Enzyme-Linked Immunosorbent Assay). It utilizes a monoclonal antibody specific for CD86 / B7-2 coated on a 96-well plate. Standards and samples are added to the wells, and any CD86 / B7-2 present binds to the immobilized antibody. The wells are washed and a horseradish peroxidase conjugated rabbit anti-CD86 / B7-2 monoclonal antibody is then added, producing an antibody-antigen-antibody "sandwich". The wells are again washed and TMB substrate solution is loaded, which produces color in proportion to the amount of CD86 / B7-2 present in the sample. To end the enzyme reaction, the stop solution is added and absorbances of the microwell are read at 450 nm.
Human B7-2/CD86 Storage
Capture Antibody: Aliquot and store at -20℃ to -80℃ for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Detection Antibody: Protect it from prolonged exposure to light. Aliquot and store at -20℃ to -80℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized Standard at -20℃ to -80℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -80℃ for up to 1 month. Avoid repeated freeze-thaw cycles.
Human B7-2/CD86 ELISA Pair Set Standard Curve
Human CD86 / B7-2 ELISA standard curve
CD86/B7-2 Background

CD86, also known as B-lymphocyte activation antigen B7-2 (referred to as B70), is a member of the cell surface immunoglobulin superfamily. B7-2 exists predominantly as a monomer on cell surfaces and interacts with two co-stimulatory receptors CD28 and cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) expressed on T cells, and thus induces the signal pathways which regulate T cell activation and tolerance, cytokine production, and the generation of CTL. It is indicated that contacts between B and T helper cells mediated by CD86 encourage signals for the proliferation and IgG secretion of normal B cells and B cell lymphomas. Recent study has revealed that CD86 also promotes the generation of a mature APC repertoire and promotes APC function and survival. CD86 has an important role in chronic hemodialysis, allergic pulmonary inflammation, arthritis, and antiviral responses, and thus is regarded as a promising candidate for immune therapy.

Human CD86/B7-2 References
  • Chen YQ, et al. (2006) CD28/CTLA-4--CD80/CD86 and ICOS--B7RP-1 costimulatory pathway in bronchial asthma. Allergy. 61(1): 15-26.
  • Rau FC, et al. (2009) B7-1/2 (CD80/CD86) direct signaling to B cells enhances IgG secretion. J Immunol. 183(12): 7661-71.
  • Dai ZS, et al. (2009) Defective expression and modulation of B7-2/CD86 on B cells in B cell chronic lymphocytic leukemia. Int J Hematol. 89(5): 656-63.
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